Issue No. 41-42/2015 - Monday 5 October 2015 CERN Bulletin More articles at: http://bulletin.cern.ch

BL4S, OR HOW CERN SETS THE STAGE FOR TEENAGE SCIENTISTS

Launched in 2014, the Beamline for Schools (BL4S) competition allows high-school students BREAKING THE RULES between 16 and 18 years old to run a real experiment at CERN’s PS accelerator (go to: http:// cern.ch/go/6xts). For two years, students and schools worldwide have risen to the challenge This week it’s the turn of heavy-ion physics to and taken part enthusiastically in the competition. To ensure that it runs smoothly and take the spotlight as the Quark Matter 2015 enjoyably, over 100 CERN people work behind the scenes. The Bulletin lifts the curtain. conference takes place in Kobe, Japan. This is the year’s most important conference for the ALICE collaboration, but there have also been many results presented by ATLAS, CMS and LHCb. (Continued on page 2)

In this issue NEWS

BL4S, or how CERN sets the stage for teenage scientists 1 Student teams from Greece and the Netherlands – the winners of CERN’s frst Beamline for schools competition – came to CERN Breaking the Rules 1 to work on their experiments using a test beam. Guido Altarelli (1941 - 2015) 3 LHC Report: Cloudy with sunny spells 3 Turning young high-school students into University (Turkey), worked on preparing the ENLIGHT envisions its future 4 real physicists who use a high-energy beam, experimental environment for the students. “It Monitoring underground movements 4 set up an experiment and deal with data was a fantastic opportunity, getting hands-on Two generations of klystrons reunited 5 acquisition and analysis, is no game. For the experience assembling the components of a CBI students: ready for new challenges 6 people at CERN, the first step is to select the full high-energy physics experiment from Cosmic visits 6 best proposals from those received from the ground up,” says Tim. Candan agrees: Italian singer Annalisa at CERN schools worldwide. “In 2015, over 40 scientists “Being responsible for implementing an for a week of filming 7 helped us select the best proposals,” explains experiment that was proposed by a team of Nobel laureate in literature visits CERN 7 Markus Joos, a software engineer from the ambitious students was no small burden in “PhD Comics” author Jorge Cham PH department who acted as BL4S project the beginning. The ten days we spent with the on the power of procrastination 8 leader this year. “Once we had selected the students have been an incredible experience New arrivals 8 winners, we needed to ‘translate’ the students’ and have helped me a lot to develop skills that CERN welcomes the Spanish proposals into real and feasible projects.” will be essential for my professional career.” Vice-President 9 Main building fire drill safely concluded 9 Two young support scientists were asked In addition to the young support scientists, Researchers’ Night: science at the shops 10 by the project leader to coordinate this BL4S involves people from various Photowalk 2015: crucial phase of the project. In 2015, Tim departments and units, including hardware, CERN as seen by a photographer 10 Brooks from Royal Holloway, University of software, beam and safety experts. “It’s a true London, and Candan Dozen from Çukurova collaboration,” says Joos. “However, in the case Computer Security 10

Take note 11 Training 12 (Continued on page 2) Seminars 12

Published by: CERN-1211 Geneva 23, Switzerland Tel. + 41 22 767 35 86 Printed by: CERN Printshop © 2015 CERN - ISSN: Printed version: 2077-950X Electronic version: 2077-9518 A word from the DG (Continued from page 1) GUIDO ALTARELLI 1941  2015 BREAKING THE RULES The CERN community was deeply saddened to learn that Guido Altarelli had passed away on 30 September. ALICE presented a wide range of results be near to one of the many watching a vitally important role, since SESAME elucidating the behaviour of the hot, parties around the world, or you can follow will bring excellent science to the region He was a true giant of particle physics and Guido Altarelli was not only a great scientist, strongly interacting state of matter the event by webcast through cern.ch/ and show how a different, collaborative of CERN. His contributions to physics span but also a person of great integrity. He was produced when conditions mimicking tedxcern. reality is possible. For this reason, we have all subjects, from strong to electroweak always available to make the bridge between those present in the frst instants after the added a SESAME strand to our high-school interactions, from neutrinos to theories experiment and theory and to share his time Big Bang are recreated in lead-ion collisions The fnal topic that I wish to touch upon this programmes, and it was my pleasure beyond the Standard Model, and from the and wisdom with the experiments and the at the LHC. Taken together with the lead- week is the subject of one of the talks at to welcome high-school teachers and study of precision measurements to the wider laboratory. The scientific community ion studies carried out by the other LHC TEDxCERN. One of the SESAME laboratory’s students from SESAME member states to analysis of apparent anomalies, whose has lost a great scientist and a great friend. experiments, these have significantly first staff scientists will be giving us a CERN this week. interpretation in terms of new physics he advanced our understanding of the nascent glimpse of her aspirations for this new often exposed as naïve and unjustified. He The Director-General has sent a letter of Universe. Further details can be found on: regional light source for the Middle East as With 2015 being the International Year of left milestones in the progress of our field condolence to his family and a full obituary http://cern.ch/go/XB8h. it approaches its 2016 commissioning. Light, there is a deep symbolic signifcance wherever he went. The awards of the Sakurai will follow in the CERN Courier. to this. One of the main reasons that Prize in 2012 and of the EPS Prize in 2015 rank Next week sees a very different kind CERN has a significant stake in the new UNESCO declared this year to be the year him among the greats, and reflect only in part of conference with the third edition of laboratory. CERN theorist Sergio Fubini of light is to celebrate the thousandth the wealth of knowledge he gave to high- TEDxCERN. As with previous editions, was an early promoter of Middle Eastern anniversary of a very signifcant scientifc energy physics. this is CERN’s chance to showcase science scientific collaboration. Thanks to an EU text on optics, penned by the Middle and the essential role it plays, and must grant, we are coordinating the construction Eastern scholar Alhazen in an age of continue to play, in all areas of society. This of SESAME’s main ring magnets. The frst scientifc enlightenment in that region. If year, we have chosen the theme “Breaking President of the SESAME Council was ever proof that a diferent reality is possible the Rules”, and have put together a line-up former CERN Director-General Herwig were needed, there it is: such a reality has of speakers who really are pushing the Schopper, and when the current President, already existed. boundaries of their fields. If you were Chris Llewellyn Smith, also a former CERN lucky enough to get a ticket, I look forward Director-General, reaches the end of his Rolf Heuer to seeing you there. If not, then you might term, I will succeed him in the role. It is LHC REPORT: CLOUDY WITH SUNNY SPELLS

(Continued from page 1) The LHC is continuing its 25 ns intensity ramp-up and has now reached 1465 bunches per and quite considerable heat load from the BL4S, OR HOW CERN SETS THE STAGE beam. Performance is reasonable and the experiments have seen some long fills with electron clouds is proving a challenge for the regulation of the cryogenics system, in steadily increasing luminosity delivery rates. Some now familiar issues continue to make life particular during the sharp transitions at FOR TEENAGE SCIENTISTS interesting. injection and during the energy ramp. This has led the operators to opt for a non-aggressive of BL4S, most of the CERN people involved in Although CERN will remain the main sponsor approach, allowing the cryogenics team time making the project happen and run smoothly of BL4S with its contribution in terms of to fully adjust following each increase in the are actually working on a volunteer basis.” beam time and services, the feasibility of the number of bunches. On the positive side, by project in the coming years will also depend operating with electron clouds, the machine Obviously, the budget is also an issue. In 2014, on funding from external supporters. If you continues to scrub slowly. the project was almost exclusively funded by are interested in supporting BL4S, go to: CERN, but private contributors provided 50% http://cern.ch/go/S7xk. In the meantime, UFOs are still present in considerable of its budget in 2015. “Among our supporters the successful concept of making a beam numbers, but thanks to the judicious beam- are the Motorola Solutions Foundation and line available to schools is spreading to other loss monitor thresholds, most are below the the Ernest Solvay Fund, managed by the laboratories around the world: both the Italian dump level and only a few fills have been lost King Baudouin Foundation,” explains Joos. National Institute for Nuclear Physics (INFN) to UFOs since resuming the intensity ramp-up “National Instruments also made a very special and Fermilab in the US are inviting students after the last technical stop. contribution by developing LabVIEW 3D from their countries who participated in BL4S software especially for us. With this LabVIEW- to carry out their experiments at their beam With 1465 bunches per beam, the peak based software, the students can visualise facilities. luminosity is around 3.5 x 1033 cm-2s-1. This is around half the luminosity of the peaks seen Left to right: Markus Joos (BL4S Project leader), Candan what is happening in their experiment, which Dozen (Scientifc support) and Tim Brooks (Scientifc sup- also makes a very nice educational tool for all Antonella Del Rosso with the 50 ns beam in Run 1. However, the port). the high -school students.” beam seems happy at 6.5 TeV and is enjoying the benefits of a relatively modest bunch The image shows the heat load evolution as measured in specially equipped dipoles. (Image: Giovanni Iadarola). Top frame: population, synchrotron radiation damping energy and intensity. Middle frame: measured heat load in W/m. Bottom frame: heat load normalised to total beam intensity. and a relaxed squeeze. Because of these Figures and winners factors, the instantaneous luminosity is falling In 2014 and 2015, a total of 667 teams from 57 countries signed up measures the energy of particles, and to test and calibrate it with One of the key challenges of 2015 was always The 25 ns intensity ramp-up has thus had to slowly, allowing for some gratifyingly long fills. and 411 proposals were submitted. The four winning teams (two each different particles. expected to be electron clouds. The two contend with significant but manageable For example, Tuesday to Wednesday saw a year) were: scrubbing runs that were performed in the electron clouds. The main consequence of this 17-hour fill that delivered around 160 inverse • In 2015: Leo4G from Italy, using and calibrating a particle detector summer successfully qualified the LHC for up has been heat load to the beam screens in the picobarns to both ATLAS and CMS. • In 2014: Odysseus’ Comrades from Greece, investigating the decay built from common, low-cost materials and a customised web- to around 1500 bunches. However, the final cold sectors of the machine. The beam screens’ of charged pions to study the weak force, one of the four fundamental cam and Accelerating Africa from South Africa, investigating the phase of the scrubbing, which saw the move primary function is to intercept beam-induced Lionel Herblin & Mike Lamont for the LHC team forces of Nature, and Dominicuscollege from the Netherlands, production of high-energy gamma rays using a crystalline from regular 25 ns beam to the doublet beam, heat loads at a temperature well above that growing their own crystals to make a calorimeter, a detector that undulator. proved difficult, and the scrubbing team of the magnets. They are actively cooled by concluded that the machine was not yet well- a forced flow of supercritical helium with a enough scrubbed for the doublets to be used regulated outlet temperature (of the beam effectively. screens) between 17 K and 20 K. The additional

2 CERN Bulletin Issue No. 41-42/2015 3 abscissa. The maximum amplitude of the the seismogram of the earthquake recorded waves it was approximately 60 minutes, signal corresponds to an angular variation by a seismometer located in Chile and showing an agreement with the wave speed ENLIGHT ENVISIONS ITS FUTURE of 40 µrad, compared with the background obtained from the Incorporated Research ranges expected according to existing of micro-seismic ground motions at a level Institutions for Seismology. By comparing literature. of ~0.1 µrad and corresponding to the the two graphs, the experts were also able superposition of seismic waves travelling both to evaluate the expected delay of the signal Antonella Del Rosso of ENLIGHT and its vital role for the hadron Last week, the European Network for LIGht-ion Hadron Therapy (ENLIGHT) met in Cracow to through the Earth and on its surface. caused by different speeds of propagation therapy community. “We discussed various discuss how to best imagine its future. Over its 13 years of life, the network has succeeded in of surface- and body-seismic waves. For the scenarios for ensuring the continuity of For confirmation of the PLI’s measurements, body waves the arrival time at CERN was blending traditionally separate scientific communities with the common goal of more effective ENLIGHT and enhancing its role in education teams at ATLAS compared the PLI data with about 15 minutes later and for the surface treatments against cancer and improving patient outcome. and training in particular, which, together with fundraising actions, is a key aspect,” concludes Today, ENLIGHT includes over 300 members the Scientific Director of the Polish Institute Dosanjh. “The first step will be the creation from more than 20 countries. Clinicians, of Nuclear Physics and Director of the of a small working group that will help me physicists, biologists and engineers with Bronowice Cyclotron Centre, Poland’s proton- establish the future structure of ENLIGHT, experience and interest in particle therapy therapy centre. The meeting featured several which will include a scientific committee – a are working in unison under the network’s presentations and even a poster session. The core group of members covering various umbrella. ENLIGHT has run four EU-funded speakers reported on the status of research disciplines and nationalities. The hope is to TWO GENERATIONS OF KLYSTRONS projects – ULICE, PARTNER, ENVISION (in hadron therapy, imaging, radiobiology drive and guide ENLIGHT towards a bright and ENTERVISION – and has managed to and data sharing), as well as on the current future.” gather experts from the various fields to medical trials using ions. REUNITED design common strategies to fight cancer with particles. “ENLIGHT has worked as an With two new dual-ion therapy centres – in ENLIGHT suppports the ICTR-PHE conference that will be held from 15 to 19 February, 2016. open collaborative network and has served Marburg (Germany) and in Wiener Neustadt As the newest accelerator on the block, Linac4 is a hotbed of fresh technology and innovation. as a common multidisciplinary platform (Austria) – and the proton-therapy centre The deadline for submitting abstracts has been for all the communities involved,” says in Cracow that will start treating patients postponed to 30 October. Registration is open But among its many new elements you’ll find some familiar pieces, including eleven klystrons Manjit Dosanjh, deputy head of CERN’s in the coming months, the members of at: http://cern.ch/go/NJX8. from CERN’s former flagship, LEP. Medical Applications office and ENLIGHT ENLIGHT have many reasons to celebrate. coordinator. “The network has identified However, many challenges still lie ahead, Antonella Del Rosso and tackled the technical challenges, trained including securing funding and succeeding young researchers, supported innovation and in harmonising data, which is key to sharing lobbied for funding.” information and best practices within the various communities. Focussed discussions The annual 2015 ENLIGHT meeting was held took place at the final round table where the in Cracow and was hosted by Paweł Olko, various speakers tackled the issue of the future

View of the Linac4 hall. The LEP klystrons (front and centre of the image) are surrounded by lead shielding. (Image: Suitbert Ramberger.)

be validated once the Linac4 installation has been completed. However, once all the LEP MONITORING UNDERGROUND klystrons reach the end of their lifetime, they will be replaced with new klystrons - one new MOVEMENTS for every two old. Suitbert Ramberger, project engineer for the Linac4 DTL, with the third and fnal DTL module. (Image: Stephan Russenschuck.) As for the other remaining LEP klystrons? Most have found new homes around the world, The Linac4 accelerator is powered by both the LEP high-power RF system. “As Linac4 from China to Sweden to France. While the The Precision Laser Inclinometer is an On 16 September 2015 at 22:54:33 (UTC), an 8.3-magnitude earthquake struck off the coast new, state-of-the-art klystrons and former was still on the drawing board, its klystron LEP era may have passed, the legacy of the extremely sensitive device capable of of Chile. 11,650 km away, at CERN, a new-generation instrument – the Precision Laser LEP klystrons. In fact, the first Drift Tube Linac frequency could be chosen to match that of machine lives on! monitoring ground angular oscillations (DTL) module is powered completely by these LEP klystrons.” Inclinometer (PLI) – recorded the extreme event. The PLI is being tested by a JINR/CERN/ATLAS in a frequency range of 0.001-1 Hz with a LEP klystrons. The last of the DTL modules has team to measure the movements of underground structures and detectors. precision of 10-10 rad/Hz1/2. The instrument only just been installed in the Linac4 tunnel – a For the decade-long wait, the LEP klystrons Find out more about Linac4 in these Bulletin is currently installed in one of the old ISR milestone that will soon take the accelerator were kept under vacuum and monitored articles: transfer tunnels (TT1) built in 1970. However, up to 50 MeV, allowing it to act as a back-up closely. During this time, they were adapted to its final destination could be the ATLAS cavern, machine for Linac2 for a few years before the accommodate Linac4’s pulsed RF operation: • Injecting new life into the LHC – May 2015 where it would measure and monitor the fine complete handover to the CERN accelerator “LEP klystrons were designed for a continuous • First Linac4 DTL & CCDTL cavities installed in movements of the underground structures, chain. wave machine,” says Brunner, “and so we had tunnel – July 2014 which can affect the precise positioning of to modify them for pulsed operation. They • The Very Model of a Modern PI-Mode the giant detector. It’s been a long journey to this point. Linac4 then passed high-voltage tests and were Structure – March 2014 was first conceived in the early 2000s, and its revalidated, ready for their installation in • Bringing up beams – December 2013 The device, initially proposed by Julian design overlapped with the end of the LEP Linac4.” • Just a few metres… but the stakes are high – Budagov and Mikhail Lyablin with colleagues era. “While we were dismantling LEP, we kept March 2013 from the Joint Institute for Nuclear Research aside 44 klystrons that we knew could be Just like old light bulbs, klystrons are • The new building for Linac4 is ready ahead (JINR), is currently being developed and reincorporated into other projects – Linac4 consumables that, eventually, have to be of schedule – November 2010 tested at CERN by a joint JINR-CERN team in being the chief among them,” says Olivier replaced. The team has ten additional LEP collaboration with Jean-Christophe Gayde’s Brunner, who led the team responsible for klystrons available as back-ups, which will Katarina Anthony team in the Large Scale Metrology section (EN-MEF-SU) and Beniamino Di Girolamo, the former ATLAS Technical Coordinator. The instrument developed by the JINR team is a new kind of ground oscillation detector, which is able to record any angular seismic activity in the Earth’s surface accurately. The Chilean earthquake’s angular signal in µrad The earthquake that struck Chile on 16 September at 22:54 UTC was recorded 15 minutes later by the PLI, a new precision registered by the PLI is shown in the image instrument designed to follow any ground movement. on the left on a Coordinated Universal Time 4 CERN Bulletin Issue No. 41-42/2015 5 CBI STUDENTS: READY FOR NEW ITALIAN SINGER ANNALISA AT CERN CHALLENGES FOR A WEEK OF FILMING

Twenty-seven students from four universities and over ten countries gathered at IdeaSquare developing novel solutions for the future of CERN welcomed Italian singer-songwriter Annalisa for a week-long visit to the Laboratory to to start their Challenge-Based Innovation (CBI) course (go to: http://cern.ch/go/N6bL). Labour mankind is a challenge that can be tackled shoot an Italian television production about the Laboratory. mobility, food safety, literacy in the developing world and water safety are the four projects only by experts coming from different fields that the students will work on now that they are back at their home institutions. The final ideas and who are willing to share their expertise,” says Tuuli. The Italian artist has a degree in physics Italian music awards, and has earned and prototypes will be presented at CERN in December. from the University of Turin, Italy. She is a international recognition. Three of the four projects are currently singer and songwriter, famous for her ‘Mediterranean’ edition of the CBI courses are sponsored by private companies and NGOs successful participation in the Italian talent Thanks to her knowledge of physics and her at the crossroads of several disciplines, and we interested in developing new solutions for show, Amici di Maria De Filippi. She has great influence with the Italian youth, Annalisa hope they benefit a lot from all the inspiration, these challenges. However, all the results recorded four albums as solo artist and has was selected to host an Italian television ideas and technologies to which they are of the students’ work will be in the public participated twice in the Sanremo Music production about CERN aimed at young exposed at CERN.” domain. If you want to know more about the Festival, the most important Italian song people. current status of the projects, have a look at contest. She has also received numerous Stefania Pandolfi Annalisa in the CERN Control Centre. The challenges that will be addressed by the the presentations the students gave at the CBI Mediterranean students are improving end of their first week at CERN (on: http:// cern.ch/go/TK9k). They will come again from The CBI students enjoy some training sessions at IdeaSquare. labour mobility, food safety, literacy in the (Image: Joona Kurikka for IdeaSquare) developing world and water safety. “Students 19 to 23 October for their second sessions with started to work on the projects a week the CERN experts, and then for the final phase The intensive first week of the four-month before coming to CERN,” explains Joona. of their project, when they will present their CBI Mediterranean course took place from “At CERN, they met researchers working in ideas and proof-of-concept prototypes at the 14 to 18 September. The students, from four fields relevant to the specific technology. For final CBI event on 10 December. NOBEL LAUREATE IN LITERATURE universities – ESADE, IED and UPC in Barcelona example, the team working on food safety and UNIMORE in Italy – gathered at CERN to had the chance to meet experts in cryogenics, meet researchers and carry out need-finding as an important aspect of food safety is the VISITS CERN and benchmarking studies. “The idea of CBI efficient preservation of food quality during If you have ideas for current or future CBI teams courses is to get multidisciplinary student the transport and delivery phases.” and you would like to discuss them further, teams and their instructors to collaborate contact the IdeaSquare team ([email protected]) with researchers at CERN to develop novel The basic requirement of CBI courses is that or come over to Building 3179 for a coffee! Gao Xingjian, winner of the Nobel Prize for Literature in 2000, was invited to visit CERN as part he explains. “The human consciousness and solutions that meet societal needs,” explains participating teams must include students of European Researchers’ Night. During his visit to the Laboratory, he took time out to give us subconscious share the same characteristics: Joona Kurikka who, together with Tuuli from different fields of engineering and IT, Antonella Del Rosso a dose of his optimism. they are not visible, but they certainly exist.” Utriainen, coordinates the CBI courses at as well as students from design faculties CERN. “The four projects we have in this first and business students. “We believe that Asked about the rumours of the end of time visitor to the Laboratory, Gao Xingjian the world that have been circulating on regaled his audience with his thoughts on the Internet for the last few weeks, he human reality at the conference ‘Made of answers with a humorous reference to the Shadow and Light’, in which he took part on medium-length film After the Flood, which 24 September, alongside Sergio Bertolucci, he produced in 2008: “What happens after CERN’s Director for Research and Computing. the flood? There’s still a future, even if it is uncertain.” COSMIC VISITS Interested in science since his childhood (his marks in physics and maths at school Gao Xingjian in IdeaSquare’s bus during his visit to CERN. were excellent, he explains with a smile), he You can find Gao Xingjian’s biography and On Saturday, 19 September, ESA astronaut Luca Parmitano and Amalia Ercoli Finzi, Principal They were welcomed in the early morning draws an interesting parallel between human bibliography on the Nobel Prize website. “The idea of bringing scientists and artists consciousness and dark matter: “The concept Investigator of the SD2 experiment on board the ESA Rosetta spacecraft, visited the AMS by Sergio Bertolucci and then headed to the Prévessin site to visit the CERN Control Centre together is wonderful!” An enthusiastic first- of dark matter makes complete sense to me,” Anaïs Schaeffer Control Centre and other CERN installations. and the Payload and Operation Control Centre (POCC) of the Alpha Magnetic Spectrometer (AMS). The Italian astronaut was able to Seven texts by Gao Xingjian translated for CERN visit the “Houston” of AMS, the experiment assembled at CERN and flown in July 2011 “Made of shadows and light” is an anthology of seven short texts, worldwide by POPScience Poetry. Download the e-book on: http:// to the International Space Station, where he written by Gao Xingjian in Chinese between 1990 and 2012, and cern.ch/go/N6bL (e-book reading software required). spent six months in 2013. extracted from a work entitled “Youshen Yu Xuansi” (Earthbound Spirit and Meditative Thought). A video showing a selection of Xingjian’s works was specifically created The group then moved to the CERN in celebration of his public conference organized by POPScience Computing Centre, where Amalia Ercoli Finzi The texts have been translated for the first time, exclusively for CERN, Poetry at the University of Geneva. The video will be part of the artist’s encountered one of her former students, into French, English, Spanish and Italian in the framework of POPScience permanent exhibition “The awakening of consciousness” at the Royal Alberto di Meglio, now a staff member in the for the 2015 European Researchers’ Night. The e-book format, which is Museums of Fine Arts of Belgium, until 26 February 2020. IT department and Head of CERN Openlab. the first digital publication for the Nobel Prize winner, is distributed Before leaving, they had a short visit to IdeaSquare, where Luca Parmitano was given an introduction to the SR2S project, which aims to build a superconducting magnetic From left to right: Sergio Bertolucci (CERN Director of Research and Computing), Amalia Ercoli Finzi (Emeritus Professor in the shield to protect astronauts from cosmic Aerospace department of the Polytechnic University of Milan and Principal Investigator of the SD2 experiment on board the ESA Rosetta spacecraft), Maurice Bourquin (AMS-02 Senior Scientist and Honorary Professor in the Nuclear and Corpuscular radiation. Physics department of the University of Geneva) and Luca Parmitano (Major in the Italian Air Force and European Space Agency astronaut) in the AMS Payload and Operation Control Centre. Stefania Pandolfi

6 CERN Bulletin Issue No. 41-42/2015 7 “PHD COMICS” AUTHOR JORGE CHAM CERN WELCOMES THE SPANISH ON THE POWER OF PROCRASTINATION VICE-PRESIDENT

From Tuesday, 22 to Friday, 25 September, Jorge Cham visited CERN. The PHD Movie 2 was rapidly became popular in universities all over On 29 September, CERN had the pleasure of welcoming the Vice-President of the Government The Vice-President was accompanied by screened in the Main Auditorium and the cartoonist also took part in one of the Researchers’ the world. He then analysed the frustrations of Spain, Soraya Sáenz de Santamaría, for a visit of the Laboratory. Carmen Vela, Spanish Secretary of State for and anxieties commonly experienced by Research, Development and Innovation, Night events. any graduate student, causing the audience Bernardo de Sicart Escoda, Ambassador of to laugh and nod in agreement. After the Spain to Switzerland, and Ana Menéndez On the first day, the author of the comic talk and another book-signing session, he Pérez, Permanent Representative of Spain strip Piled Higher and Deeper (PhD Comics) introduced a screening of The PHD Movie 2. to the United Nations and International visited the CERN Control Centre, the Organizations in Geneva. Synchrocyclotron, the CMS Service Cavern The next day, he was on stage again in one of and the ATLAS control room. the Researchers’ Night events at the Balexert Their tour started at LHC Point 1, where shopping centre: a panel discussion entitled CERN Director-General Rolf Heuer welcomed On Thursday, he had a busy afternoon, “The PHD Movie vs. The Big Bang Theory”. them and gave them an introduction to starting with signing copies of his books Together with David Saltzberg (CMS physicist CERN’s activities. José Miguel Jiménez, Head and then giving a talk entitled “The Power of and scientific consultant for the American of the Technology department, and Lluis Procrastination” in a packed Main Auditorium. sitcom), Cham discussed the funny side of Miralles, Head of the General Infrastructure He made the audience laugh by narrating his science and life as a researcher as portrayed Services department, accompanied them experience as a graduate student in robotics in the film and the show. on their visit to the ATLAS control room, the at Stanford University, recounting how he Synchrocyclotron and the CERN Computer started drawing PhD Comics and how it Stefania Pandolfi Centre (CC). At the CC, Frédéric Hemmer, Head Jorge Cham in the CERN Control Centre. of the Information Technology department, presented the LHC Computing Grid Project.

Their last visit was to the LHC superconducting magnet assembly hall, where they met with CERN scientists from Spain. From left to right: Lluis Miralles (Head of the General Infrastructure Services department), Soraya Sáenz de Santamaría (Vice- NEW ARRIVALS President of the Government of Spain) and José Miguel Jiménez (Head of the Technology department). Anaïs Schaeffer

On Wednesday, 23 September 2015, recently-recruited staff members and fellows participated in a session in the framework of the Induction Programme. MAIN BUILDING FIRE DRILL SAFELY CONCLUDED

Last week, a simulated fire in the stairwell of the Main Building put CERN’s emergency response as well as Novae staff. This proved essential in procedures to the test. the rapidity of the evacuation and brought home the importance of this role. Due to the complexity of the buildings, we involved 26 places at CERN. The Main Building complex observers from different departments who includes the Carlson Wagonlit travel agency, have given us very useful feedback.” the post office, UBS, Uniqa, the Users Office, the Staff Association and the Novae restaurant This was the first exercise of this scale to be as well as the Main Auditorium, the Council conducted at CERN, and lessons learned will Chamber and the Charpak meeting room. be deployed laboratory-wide. Among the evacuees was the Director General, who had It was impressive to see how quickly the the chance to see the operation first hand. “It smoke propagated in the staircase as well was great to see how seriously everyone took as into the corridors, and equally impressive the exercise,” he said, “and I’d like to thank all to see how smoothly, quickly and efficiently who took part.” the evacuation proceeded. The exercise was the subject of meticulous planning, and was CERN Bulletin organised by the Departmental and Territorial HR Department Firefghters descend the stairwell in the Main Building as the Safety Officers (DSOs and TSOs) from DG and simulated fre rises. GS in collaboration with the Fire Brigade, Site Security, the Fire Detection Services and the At 2 p.m. on 22 September, alarms sounded HSE Unit. around CERN’s Main Building as an evacuation exercise got underway. A simulated fire in the “This exercise took a great deal of preparation,” stairwell, complete with very realistic smoke, said Gunnar Lindell, DSO for the DG Unit. “We led to the evacuation of one of the busiest identified and trained 22 emergency guides,

8 CERN Bulletin Issue No. 41-42/2015 9 CERN Market is a public website that can be Guidelines. And, finally, please also note that used by people within but also outside CERN. the CERN Market is meant for private sales For further information, questions or help, RESEARCHERS’ NIGHT: All posts are visible worldwide. While this post and services only. Professional offers (dentists, check: https://security.web.cern.ch might be borderline, we have had posts in the removal services, etc.) are not permitted and or contact us at SCIENCE AT THE SHOPS past which could have impacted negatively on will be promptly deleted. [email protected]. the reputation of the Organization if spotted by, for example, journalists looking for a story. Do you want to learn more about computer P.S. This example was even worse than it first security incidents and issues at CERN? Follow If you regularly advertise on the CERN appeared. The post finally turned out to be a our Monthly Report: On 25 September, as part of European Researchers’ Night, CERN and POPScience joined forces to public. In the multimedia shop FNAC, authors https://cern.ch/security/reports/fr/ welcome the public at the Balexert shopping centre in Geneva. The Bulletin presents its gallery signed books, customers enjoyed virtual tours Market, if you host one or more webpages “joke” published under the name of one of our at CERN or about CERN, if you regularly post monthly-reports.shtml. of photographs from the exciting and educational event. of the CMS experiment via television screens, CERN colleagues by members of their team. physicists answered numerous questions, and information about your work at CERN or your They neglected the basic rule of locking their opinion on issues happening at CERN on computer screen with a password when children built Lego detectors. Stefan Lueders, Computer Security Team Science through comic strips, games, cinema in person and others via video link, included Twitter, Facebook, etc., please use common leaving the office. (Did you spot it? Two more and television: POPScience approaches Jorge Cham, author of PhD Comics and the See the pictures: sense. Publish in a positive and constructive violations of the CERN Computing Rules. scientific questions through popular culture, spin-off film; David Saltzberg, physicist at CMS way, respecting CERN’s Code of Conduct Sigh.) Their colleagues took advantage of that, with great success! Around 500 children and scientific consultant for the television and the values contained therein. For more ignoring any adverse effects on the reputation attended the sessions for schools at Balexert’s series The Big Bang Theory; Kip Thorne, details, please consult the CERN Social Media and the moral well-being of the victim. multiplex cinema, and 600 spectators flocked scientific consultant for the film Interstellar; to the public screenings. Lawrence Krauss, author of The Physics of Star Trek; and Italian astronaut Roberto Vittori, who Using the big screen, scientists, directors gave a commentary on the film Gravity. and authors were on hand to disentangle Take note truth from untruths and science from science In the main area of the shopping centre, CERN fiction. The guests, some of whom appeared scientists performed experiments for the Corinne Pralavorio

VACCINATION AGAINST SEASONAL 2016 ESIPAP - JUAS | Registrations CLOSURE OF THE CAR POOL IN FLU BUILDING 130 UNTIL 6 NOVEMBER The registrations for the 2016 sessions of the Joint Universities Accelerator The Medical Service once again School (JUAS) and of the European The Car Pool, Building 130, will be closed recommends you to get your annual flu School of Instrumentation in Particle and from Friday, 9 October until Friday, 6 PHOTOWALK 2015: CERN AS SEEN BY vaccination for the year. Astroparticle Physics (ESIPAP) are now November for renovation. open. A PHOTOGRAPHER Vaccination is the most effective way All activities, such as SIXT rental cars and of avoiding the illness and any serious Applications are welcome from second-year maintenance of the CERN car fleet, will be consequences and protecting those around Master and PhD and for physicists wishing to temporarily transferred to the Car Pool at you. The flu can have especially serious further their knowledge in this particular field. Building 124. On Friday, 25 September, CERN opened its doors to nineteen photographers from all over the See the pictures: consequences for people with chronic conditions (diabetes, cardio-vascular disease, Mobile phone: 161113 (+41 75 411 1113). world for the CERN Photowalk 2015: behind the scenes at the Laboratory. The deadline for submission of the full etc.), pregnant women, infants, and people application form is 30 October 2015. over 65 years of age. Thank you in advance for your understanding. The photo competition was organised as A jury will select the best three photos part of an international photo competition, taken at CERN before the end of October. Remember, anyone working on the CERN site GS-IS Group the Global Physics Photowalk, in which seven These photos will be exhibited in 2016 and who wishes to be vaccinated against seasonal IT’S TIME TO GO “BACK TO THE other physics laboratories also participated. will represent CERN in the international flu should go to the Infirmary (Building 57, FUTURE”! competition, in which each of the other labs ground floor) with their vaccine. Professional and amateur photographers will also enter three snapshots. In November, Grab your hoverboard, charge up your flux alike had the chance to visit and capture for an international jury and a public vote will pick The Medical Service will issue a prescription Julie Haffner capacitor and join the CERN CinéClub to posterity a number of unique CERN sites: the winning photos, which will be exhibited on the day of the vaccination for the purposes watch the “Back to the Future part 2” film Linac4, the main workshop and the ISOLDE in 2016 in Asia, Europe and North America of reimbursement by UNIQA. [1989] that takes the characters into the facility. They were also able to get a feel for life and will be featured in the CERN Courier and future to 21 October 2015. at CERN by exploring the Meyrin campus. Symmetry journals. NB: The Medical Service cannot provide this vaccination service for family members or “Back to the Future Part II” film screening retired members of the personnel. Wednesday, 21 October 2015 at 6 p.m. Council Chamber (503-1-001) For more information: (in English, with French subtitles)

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and much more, in this iconic film from the Office of Public Health (go to: http://cern. 1980s. This special screening is a collaboration POSTING AND MISPOSTING ch/go/jdH7) of the CERN CinéClub and CERN social media. CERN Medical Service “Where we’re going, we don’t need roads” This is what can happen at CERN if you don’t lock your computer screen... might find this appealing, some people think this is funny. Personally, I couldn’t care less. But professionally, we had to follow up as this text “Hi, I am looking for a partner either male or you can keep up with me and enjoy getting can be perceived as inappropriate and, thus, female to attend salsa lessons. I have a great sweaty send me a reply. Stay sexy…” in violation of the Terms of Usage of the CERN body and enjoy rubbing it against other Market as well as the CERN Computing Rules people on the dance floor. I would consider This is the original text of a recent posting and its annex on private usage of the CERN dinner after with the right person. If you think on the CERN Market webpage. Some people computing facilities. We remind you that the

10 CERN Bulletin Issue No. 41-42/2015 11 Training Supplemental

in computer architecture and their an overview of patterns abd look at LAUNCH OF TECHNICAL TRAININGS consequences for the programmer, from trade-offs, pitfalls and available parallel FOR PROGRAMMERS the basic Von Neumann schema to its programming environments – with a NEWS modern-day expansions. Understanding particular focus on OpenMP4, Threading This autumn, two new technical training hardware-software interaction allows Building Blocks and Cilk. The last day is an courses have been launched for scientists the programmer to make better use of all advanced class devoted to fine-tuning and FROM THE CERN WEB: and engineers at CERN who undertake features of available computer hardware balancing parallel programs using modern ANTIHYDROGEN, ROOT, PROTONS programming tasks, particularly in C and and compilers. Specific architectural frameworks, runtimes and APIs. Demo labs C++. Both courses are taught by Andrzej features are discussed (such as execution are included. AND MORE Nowak; an expert in next-generation ports, branching algorithms, etc), as well and cutting edge computing technology as instruction sets, compilers, memory Participants can register via the training This section highlights articles, blog posts research. operation and architecture, fundamentals catalogue on: http://cern.ch/go/TK9k. and press releases published in the CERN of floating point and acceleration. Demo web environment over the past weeks. This The training courses are organised in labs are included. way, you won’t miss a thing... cooperation with CERN openlab and are For more information, please contact Technical. sponsored by the CERN IT department – there Participants can register via the training [email protected]. Big data takes ROOT is only a nominal registration fee of 50 CHF. catalogue on: http://cern.ch/go/TK9k. 29 September – by Barbara Warmbein This is an opportunity not to be missed!
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Programming and environments for Particle physicists don’t break into a sweat
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Computer architecture and hardware- parallelism (4 days, Nov 3-6) when they face big data. On the contrary: they software interaction (2 days, Oct 26-27) need it in order to be able to tell a rare process The parallelism course dives into a wide from a common one. Reliable statistics are The architecture course offers a range of parallel programming techniques, essential here, and physicists gather statistics comprehensiveoverview of current topics whether data- or task-parallel. We start with by producing as many particle collisions as possible. At the LHC, protons collide some 1 billion times per second, and the CERN data centre stores more than 30 petabytes of data Seminars per year from the LHC experiments. Continue to read on: http://cern.ch/go/6kLd Example of a plot created with the help of the ROOT tool. (Image: ROOT)

FRIDAY OCTOBER 09, 2015 WEDNESDAY OCTOBER 14, 2015 The most precise picture of the proton 25 September – CERN Courier 11:00 Detector Seminar LHCb trigger and reconstruction optimization 14:30 ISOLDE Seminar The anomalous heat effect on D/H loaded for Run II: real-time alignment and calibration, and the TURBO Palladium: Exploration at an atomic level, preliminary perturbed After 15 years of measurements and another stream. Salle Anderson angular correlations studies eight years of analysis and calculations, the H1 and ZEUS collaborations have published the most precise results to date about the SATURDAY OCTOBER 10, 2015 TUESDAY OCTOBER 20, 2015 innermost structure and behaviour of the proton. 09:00 Globe Colloque transfrontalier TPE - TM Main Auditorium 10:00 CERN Computing Seminar Adopting CERN SixTrack Fortran Legacy Modeling Code to Perform Ensemble Simulations on The diagrams show the neutral-current (top) and charged-current (bottom) deep-inelastic MONDAY OCTOBER 12, 2015 GPU IT Amphithéâtre electron–proton scattering processes. 11:00 LHC Seminar CMS results Filtration Plant 09:00 JAI Accelerator Courses Michaelmas Term 2015 11:00 CERN Computing Seminar Adopting CERN SixTrack Fortran Continue to read on: http://cern.ch/go/8m9R Videoconference Room Legacy Modeling Code to Perform Ensemble Simulations on GPU IT Amphithéâtre TUESDAY OCTOBER 13, 2015

11:00 LHC Seminar: ATLAS results

Image: DESY.

12 CERN Bulletin Issue No. 41-42/2015 13 Where no-one has gone before The birds and the beams: Biodiversity at The idea is that a young female considering a closed-off areas will be clearly indicated). the very large LHC experiments, emphasising 30 September – CMS Collaboration CERN HIGHLIGHTS FROM E-EPS: WOMEN career in physics (student, post-doc or young When the work is completed, the car park will the main building blocks as well as the 22 September – by Cian O’Luanaigh IN PHYSICS: CHALLENGING THE researcher) might find positive answers have been completely renovated, with new different choices and architectures at different ESTABLISHED STEREOTYPES? through learning about the experiences of surfacing and road markings, high-quality levels of complexity. About half of the school someone only a few years older regarding lighting and more parking spaces (+5%). time will be dedicated to laboratory exercises An equitable gender balance in physics their choice to pursue a career in physics. where the students are exposed to most of the would be beneficial for the quality of During the work, part of the car park will be techniques described in the lectures. research and education, which are key Motivation and confidence in oneself (“Yes, inaccessible, which is likely to make it more elements in the economic, social and I can”) are necessary qualities for reaching difficult to find a parking space. We therefore The 7th International School of Trigger and cultural development of our society. The leading positions. invite you to park in the Globe car park during Data Acquisition will be held in the Lopatie under-representation of women in physics this period. Conference Centre on the campus of the is very widely debated and is central for a Weizmann Institute of Science in Rehovot, society that cares about the well-being of The renovation work will also affect Entrance Israel. Lectures, hands-on exercises, breakfast, its members. This article is from e-EPS News. A (Route Bell), which will be fitted with a fully lunch and coffee breaks will be held in the automated road gate, similar to the one at Centre. Accommodation is within walking Many analyses of the reasons for the L.Di Ciaccio, Chair of the Equal Opportunity Entrance C. For increased convenience and distance at the Reisfeld Residence of the A top quark candidate in the CMS detector. (Image: CMS asymmetric presence of the genders among Committee of EPS safety, two turnstiles for access by pedestrians Hebrew University Faculty of Agriculture and Collaboration). the population of physics students and at the and cyclists will also be installed. Entrance A the San Martin Guest House on the Weizmann A member of the CERN fock grazes on the roof of the Inter- will also be closed from 6 July but should be campus. secting Storage Rings. various levels in academia exist. It has been Born at the end of the ’70s, I was still in school observed that, in general, the phenomenon operational again by the end of September. when the heaviest of all quarks was discovered is present at different quantitative levels in Since places are limited, acceptance to the at the Tevatron: the top quark. Back then I had It’s 7am at CERN and sheep are grazing on the the different European countries, being less TAKE NOTE We thank you for your understanding and school is by a selection committee. no idea what it was about. But reading an roof of the world’s first hadron collider. pronounced in Italy, Greece and Spain. This apologise for any inconvenience. article in the newspaper I felt the excitement confirms that the reasons for the gender *Apply on: http://cern.ch/go/S7q6* surrounding such a discovery. My interest for Though the Intersecting Storage Rings have imbalance are multiple and include a different ROOF RENOVATION OF BUILDINGS GS Department Applications are accepted until the smallest and most basic building blocks lain dormant since 1984, this morning the air way of perceiving physics as a discipline in 128 AND 129 31 October 2015. of the universe had been awakened. When I resonates with the sound of bells and bleating different countries. It is very likely that, in some joined the CMS Collaboration in 2014, I had as shepherd Enrico D’Ippolito inoculates his countries, in people’s minds, physics studies The roof renovation of buildings 128 and TRAFFIC MODIFICATIONS no doubt that the first measurement I would herd. Kin, the 3-year-old border collie, jumps have less of a technical connotation and the 129 is scheduled to take place from 17 ON ROUTES RUTHERFORD, Find out more about the school on: http://cern. like to do was that of the production rates of against makeshift metal gates, whining and physicist is seen more as “a philosopher” of August to 15 October 2015. top-quark pairs at the new energy regime of snapping to keep the ewes moving. “They’re nature. From this perspective, physics fits DEMOCRITE AND FERMI ch/go/Q76L. 13 TeV. Shortly after the restart of the LHC in very sweet-natured,” grins D’Ippolito. “And better with the common stereotype: women During this period, access to the “raw material” Markus Joos, on behalf of the organisers summer this year, we began a journey where they keep me busy!” are supposed to make less money than men, workshop will be limited and controlled due The GS Department would like to inform no-one has gone before. so they may indulge in cultural activities. to asbestos removal. Collecting your orders you that, until the end of December, the Continue to read on: http://cern.ch/go/Lm7g directly from the building will be difficult, or construction of Building 245 will result in the Continue to read on: http://cern.ch/go/QJ97 Luckily, several actions to guarantee a even impossible, and urgent requests will be following traffic modifications: SPRINGER PUBLISHING BOOK balanced gender representation in physics difficult to carry out. BOOTH | 8-9 OCTOBER “HELLO!” FROM CROSBY AND have been proposed and also taken up in all 1.Traffic on Route Rutherford will be partially European countries (and elsewhere) in order restricted in front of the construction site, We therefore ask you to create your requests Continuing the spirit of the CERN Book Antihydrogen at CERN: 20 years and still NASH to address the issue. Generally speaking, the 2.Traffic on Route Democrite will be one- via EDH, so that delivery may be carried out as Fairs of the past years, Springer Publishing going strong situation is continuously improving thanks to way towards Route Rutherford. On Tuesday, 29 September, American soon as possible. will have a book booth in the foyer of the 29 September – by Harriet Jarlett different initiatives even though there is still musicians David Crosby and Graham Nash Main Building, from 8 to 9 October. Some a lot of room for improvement, in particular Thank you for your understanding. Also, please note that due to construction visited CERN. They also recorded a video concerning the men-women asymmetry in work in front of Building 377, Route Fermi of the latest titles in particle physics and message, commenting on their visit and related fields will be on sale. high-responsibility positions. GS Department will be closed from Wednesday, 10 June until sending their greetings and thanks to Friday, 7 August. CERN’s people. The Equal Opportunity Committee of the EPS For the occasion, Professor Ugo Amaldi will was established in 2013 with the mission of Thank you for your understanding. present his new book “Particle Accelerators: Watch the video: looking at the barriers that contribute to the WORK ON THE BUILDING 4 From Big Bang Physics to Hadron Therapy” under-representation of women in physics CAR PARK AND CLOSURE OF on Thursday, 8 October at 5 p.m. in Room F and of promoting actions to facilitate gender- REGISTER NOW FOR ISOTDAQ 2016 (Charpak room). The presentation will take balanced participation in the field. ENTRANCE A place in the framework of the Italian Teachers week and will be followed by a signing session. From 6 July to 31 October 2015, the GS The International School of Trigger and In 2013, the EPS launched the Emmy Noether department will be carrying out renovation Data Acquisition (ISOTDAQ) 2016 is distinction to recognise noteworthy female A special highlight at the Springer booth will The ALPHA experiment, one of five experiments that are work on the car park next to Buildings 4 the seventh in a series of International physicists. The distinction is awarded to be the presentation of the CERN-sponsored studying antimatter at CERN. and 5. This work is aimed at improving Schools dedicated to introducing MSc and Open Access book: “J Rafelski (ed): Melting excellent female physicists for their personal safety on and around the car park for all PhD students to the “arts and crafts” of achievements in physics research, education Hadrons, Boiling Quarks - From Hagedorn Twenty years ago a team of scientists at CERN users, particularly children attending the triggering and acquiring data for physics Temperature to Ultra-Relativistic Heavy- led by Walter Oelert succeeded in producing and outreach. At the same time, the laureates nursery school, pedestrians and cyclists. experiments. are role models for the younger generation of Ion Collisions at CERN; With a Tribute to Rolf the first atoms made of antimatter particles. Hagedorn”. David Crosby, Graham Nash, and Stephen Stills physicists. The work on the car park will be conducted in The main aim of the school is to provide have played together for over 30 years in the The nine atoms of antihydrogen – the two stages so that half of the parking spaces an overview of the basic instruments and CERN Library antimatter counterpart of the simplest atom, Crosby, Stills and Nash folk rock band. Originally, A new initiative of the EPS-EOC has been will always be available, in order to limit the methodologies used in high energy physics, hydrogen – were made at CERN’s Low Energy together with Neil Young, they were all members launched, consisting of preparing and impact on users as much as possible (the spanning from small experiments in the lab to Antiproton Ring (LEAR) facility. This world of the Crosby, Stills, Nash and Young band, publishing in e-EPS short portraits of young premiere happened exactly 30 years after the having played at the iconic Woodstock Festival female researchers in the very early stage discovery of the antiproton and opened a new and produced many legendary songs such as of their careers in academia or in industry. chapter in the study of antimatter. Teach Your Children, Judy Blue Eyes, Our House The first portrait was published in this issue and Marrakech Express. of e-EPS (http://cern.ch/go/DBf8) and the Continue to read on: http://cern.ch/go/q9JJ initiative will continue aiming to present a CERN Bulletin portrait every two months.

14 CERN Bulletin Issue No. 41-42/2015 15 TRAINING

PLACES AVAILABLE - TECHNICAL M A N AG E M E N T CO U R S E S (UP TO THE END OF 2015)

Please find here the courses in the field of technical management scheduled up to the end of 2015 and which have places available.

For more details about a course and to register, please go to the Training Catalogue.

If you need a course that is not in the catalogue, please contact your supervisor, your Departmental Training Officer or the HR-LD group at Communication.Training@ cern.ch.

PLACES AVAILABLE – LEADERSHIP PROGRAMME (UP TO THE END OF 2015)

Please find here the courses in the field of Leadership scheduled up to the end of 2015 and which still have places available.

For more details about a course and to register, please go to the Training Catalogue.

If you need a course that is not in the catalogue, please contact your supervisor, your Departmental Training Officer or the HR-LD group at Communication.Training@ cern.ch.

PLACES AVAILABLE - PERSONAL DEVELOPMENT AND COMMUNICATION COURSES (UP TO THE END OF 2015)

Please find here the courses in the field of personal development and communication scheduled up to end of 2015 and which still have places available.

For more details about a course and to register, please go to the Training Catalogue.

If you need a course that is not in the catalogue, please contact your supervisor, your Departmental Training Officer or the HR-LD group at Communication.Training@ cern.ch.

16 CERN Bulletin