Issue No. 9-10/2018-Wednesday 28 February 2018 CERN Bulletin More articles at http:/ / home.cern/ cern-people

A WORD FROM ECKHARD THE NEW LHC PROTECTORS ELSEN

A FEAST OF PHYSICS TO TIDE New collimators are being installed and tested in the LHC. They will im- US OVER UNTIL MORIOND. . . prove its protection and prepare it for higher luminosity in the HL-LHC While awaiting the annual tartiflette of physics that is the Moriond conference, at the forefront of which will be the results of the LHC's 13-TeV runs, it's refreshing to take a look at some of the other research that has been going on around the Laboratory. We have a very rich and diverse programme and there have been some very interesting developments over recent months.

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In this issue

News 1 The new LHC protectors1 A word from Eckhard Elsen2 Two wire collimators have been installed in the LHC tunnel on both sides of the ATLAS experiment. (Image: Max What's YETS for the experiments?3 Brice, Julien Ordan/CERN) High-level visits to CERN4 Collimators are the brave protectors of the has a wire integrated into its jaws, vacuum- New chairs for the Antiproton LHC. They absorb all the particles that brazed into its tungsten-alloy absorbers. A Decelerator Users Community5 stray from the beam trajectory. These un- current passing through the wire creates an Female physicists and engineers go ruly particles may cause damage in sen- electromagnetic field, which can be used back to school5 sitive areas of the accelerator, thereby to compensate the effect of the opposite Computer security: curiosity clicks the endangering operational stability and ma- beam. chine safety, or quench the LHC's su- link6 perconducting magnets. During the cur- “We can look at it as half collimator, half rent year-end technical stop (YETS), two magnet. In addition to cleaning the beam Official communications 7 kinds of recently developed collimators and protecting the downstream equipment, have been installed in the LHC. it also acts electromagnetically on the Announcements 9 beam to compensate for long-range beam- The first kind is called TCTW (Target beam effects.” Ombud’s corner 11 Collimator Tertiary Wire) and will serve a double function. As its name suggests, it (Continued on page 2)

Published by: CERN-1211 Geneva 23, Switzerland tel. +41 22 767 35 86 Printed by: CERN Printshop ©2018 CERN-ISSN: Printed version: 2011-950X Electronic Version: 2077-9518 A WORD FROM ECKHARD ELSEN A FEAST OF PHYSICS TO TIDE US OVER UNTIL MORIOND. . .

The LHC is becoming a dab hand ify the behaviour of the cross-section ble nuclei, in particular their outer skin. at resolving decades-old enigmas. observed by TOTEM that leads to the It's a sign of the maturity of antimat- Following on from the Higgs boson and putative odderon. The crème fraîche on ter research at CERN that antiprotons pentaquarks, we may soon be able to the tartiflette remains, however, that of have evolved from being a subject for welcome the odderon to the collection a resonant enhancement, which has yet research in their own right to a tool en- of LHC physics results. The TOTEM ex- to be observed. abling other forms of research to be car- periment studies what happens when ried out. If a mobile antiproton trap does LHC protons glance off each other and Meanwhile, the AD is enjoying a par- indeed prove to be feasible, combined remain intact, rather than breaking up ticularly productive and engaging pe- AD-ISOLDE experiments could be shed- in the collision. In this so-called elas- riod. The ALPHA experiment recently ding light on astrophysical processes tic scattering, there is nevertheless an performed its first precision spectro- by 2022. interaction between the two protons, scopic measurements on antihydrogen, and it's here that the odderon comes in. launching a new era of precision anti- The final thing I'd like to mention Back in the 1970s, Isaak Pomeranchuk matter physics. BASE has vastly im- is the activities at the CERN neu- proposed that elastic proton-proton proved the precision of the measure- trino platform, where work is progress- scattering was mediated by a kind of ment of the antiproton's magnetic mo- ing well on two prototype detectors quasi-particle carrying the strong in- ment. ALPHA-g and GBAR are prepar- that we are building to establish the teraction. This was duly named the ing to measure the influence of gravity technology for the Deep Underground pomeron in his honour. The pomeron on antimatter. And the ELENA ring will Neutrino Experiment (DUNE), hosted by has even CP quantum numbers, but it soon come online to slow down antipro- Fermilab in South Dakota. A smaller de- later became clear that a CP-odd ex- tons even further and vastly increase vice has already provided nice tracks. change could also be at work, and the the trapping efficiency. ProtoDUNE-SP is being prepared for term odderon was duly coined. In mod- beam before the long shutdown at the ern physics language, we associate One of the more intriguing proposals to end of the year, and both protoDUNEs these exchange processes with an even come to both the SPSC and INTC at their will continue recording data with cos- or odd number of gluons. What TOTEM last meetings also involves the AD. We mic rays. With such a variety of work has seen is not a direct observation, but received a letter of intent to load an- going on across CERN's diverse range a hint that the odderon might be there. tiprotons onto a truck and drive them of facilities, there's plenty to feast on at A dedicated 900-GeV LHC run later this to ISOLDE, where they could be used any time of the year, tiding us over un- year, during which ATLAS's ALFA de- to study the exotic behaviour of unsta- til the next round of conferences. Bon tector will join the search, should clar- appétit.

Eckhard Elsen Director for Research and Computing

THE NEW LHC PROTECTORS

These disturbances are considered to be of collimator has been developed for the HL-LHC project by EN-STI, together with one of the limitations of the performance High-Luminosity LHC project, in collabo- the UA9 collaboration, this jewel of the col- of the LHC and the HL-LHC, explains ration with the Beam Instrumentation and limation system offers an alternative way to Iñigo Lamas Garcia from the Sources, Accelerator Physics groups of the Beams clean the beam – it uses silicium bent crys- Targets and Interactions (STI) group of the department, as part of the HL-LHC WP5 tals to deflect the halo particles. Engineering department, who is in charge that is responsible of future collimation up- of the installation of the collimators. grades. “We are installing them in the “We still have to capture the particles, but, LHC way in advance as proof of concept, in theory, with the use of crystals we do it Two of these collimators are now in place to validate their expected performance and in a cleaner and more efficient way, further at Point 1, one on each side of the ATLAS benchmark the simulations,” adds Lamas away from the beam line,” explains Lamas experiment. This is the second time that Garcia. Garcia. wire collimators have been installed in the LHC, following a similar operation at Another type of collimator – a TCPC This is a very promising technology for the Point 5 during last year's extended year- (Target Collimator Primary Crystal) – has high-luminosity era of the LHC. Previously, end technical stop (EYETS). This new kind been installed at Point 7. Developed for the

2 crystal collimators have been installed in tromagnetic disturbances while delivering will be installed at point 7 during Long the Super Proton Synchrotron (SPS) and an equivalent or even improved cleaning Shutdown 2 (LS2). in the LHC, where they have been tested performance. A first prototype of this de- during the machine development periods. vice, build in-house by EN-MME, was in- All these innovations in the collimator tech- In 2017, this new system proved to be very stalled at Point 7 during the EYETS and nology stem from the need for a bet- effective for Xenon ion beams and this year successfully tested with beam in 2017 ter cleaning performance for the High- it will also be tested with lead ions. by the accelerator physics and collimation Luminosity LHC, when the intensity of the teams of the Beams department, demon- beam will be much higher. These collima- A third kind of collimator, a prototype made strating the expected improvements. tion upgrade studies are carried out in a out of a coated novel material (molyb- collaborative effort across the Accelerator denum graphite), is the TCSPM (Target For the HL-LHC collimation upgrade, a se- and Technology sector. Collimator Secondary Pick-up Metallic). It ries production of ten new TCSPM colli- has also been developed by EN-MME and mators is being launched by EN-STI. They Iva Raynova EN-STI. Its purpose is to reduce the elec-

WHAT'S YETS FOR THE EXPERIMENTS?

What repairs have been made at the experiments during the year-end technical stop

sides of the TPC were explored and the was brought to a clean room on the sur- presence of filaments of dust was detected. face at Point 5 to begin consolidation works These were removed using small extrac- in preparation for the 2018 data-collection tor tubes that acted like tiny vacuum clean- run. Members of CMS worked there ev- ers. During the long shutdown, an up- ery day of the closure, performing diagnos- grade of the TPC is planned, which will see tic tests to help develop maintenance and it equipped with new readout chambers refit procedures for the pixel system, the and electronics designed to allow the ex- rest of which was brought to the clean room periment to cope with the expected higher early in the new year. All components have event rate. Since the central barrel of the now been re-inserted inside CMS and cold- TPC will stay as it is, efforts to maintain it testing will begin in the first few days of Work to maintain the LHCb detector has been car- are key to guaranteeing the correct func- March. ried out during the YETS. Here you see, from right to left, the muon chambers, the LHC beam pipe, the tioning and high efficiency of the detector. hadronic calorimeter and the electromagnetic calorime- Another key ongoing task for the collabora- ter. (Image: Juliian Ordan/CERN) For ATLAS, work during the YETS has tion is the Phase-1 Upgrade of the hadron meant routine repairs and maintenance of calorimeter (HCAL). The “forward” part of the sub-detector systems. Two of the this calorimeter (around the beam pipe as The year-end technical stop (YETS) is now experiment's 32 cathode strip chambers it enters/leaves CMS) was upgraded a year over halfway through and just as lots of re- (CSC) were brought to the surface for re- ago, while the upgrade of the so-called pairs and upgrades are being done in the pairs and then reinstalled in the detec- “endcap” section is now almost complete. LHC and the injectors, each of the LHC ex- tor. These multiwire proportional chambers The central “barrel” components will be re- periments is also being refreshed. are based on Georges Charpak's Nobel- equipped during the long shutdown, ready Prize-winning invention, which celebrated for LHC Run 3 and, eventually, HL-LHC. LHCb is using this period to perform main- its 50thanniversary last week. tenance work on its many sub-detectors in In preparation for the long shutdown, order to ensure that the detector is ready to At the same time, the pixel detector read- CERN's Handling Engineering team and make the most of this final year of Run 2, out system was upgraded in relevant parts. CMS have installed a second 20-tonne once protons begin to circulate in the LHC Consolidation and maintenance has also crane in the underground experimental again from April 2018. The two-year Long been carried out on the semiconductor cavern housing the detector. The installa- Shutdown 2 will start in December 2018 tracker, transition radiation tracker, liquid tion was achieved in record time and will and, during this period, LHCb will face its argon calorimeter, tile calorimeter, muon give CMS greater flexibility for moving sub- first major upgrade, which will allow the ex- drift tube chambers, resistive plate cham- detector elements in the cavern during LS2 periment to take data at a much higher rate. bers, thin gap chambers, forward detec- and beyond. tors, trigger and data acquisition and the At ALICE, the time has been used to un- corresponding service infrastructure. The last few weeks of the YETS continue to dertake a very delicate procedure: an en- occupy the full attention of CMS Technical doscopic cleaning of the time projection The YETS has been especially busy for Coordination as the detector is readied for chamber (TPC), which will make it more ef- CMS. Before the Laboratory's annual two- the next round of collisions. ficient and afford higher collision rates in week closure over Christmas, part of the preparation for Run 3, which will begin in new pixel tracker installed in early 2017 2021. Using endoscopic cameras, the in-

3 Harriet Jarlett

An illustration of the ALICE experiment with the time projection chamber highlighted (Image: CERN)

HIGH-LEVEL VISITS TO CERN

CERN welcomed the President of the Republic of Austria, the Governor-General of Australia, and the President of the Republic of Mozambique

The President visited the CMS experiment, the LHC tunnel, the ASACUSA and AEgIS facilities and the Globe of Science and Innovation. He also attended a round table with a selection of young Austrian scien- tists.

On 26 February, the Governor-General of the Commonwealth of Australia, Peter The Governor-General of the Commonwealth of Cosgrove, and his delegation were wel- Australia, Peter Cosgrove, and Fabiola Gianotti, CERN comed at CERN by Fabiola Gianotti, Director-General. (Image: Julien Ordan/CERN) CERN Director-General, Eckhard Elsen, The President of the Republic of Austria, Alexander Director for Research and Computing, Van der Bellen, and his wife (first two on the left), with Fabiola Gianotti, CERN Director-General, and Emmanuel Tsesmelis, Head of Associate Heinz Faßmann, Minister for Education, Science and Member and Non-Member State Relations, Research. (Image: Julien Ordan/ CERN) and Geoffrey Taylor, National Contact Physicist. The Governor-General visited The President of the Republic of Austria, the ATLAS control room and the under- Alexander Van der Bellen, and his del- ground experiment area, as well as the egation visited CERN on 27 February LHC tunnel. 2018. Upon his arrival, the President was welcomed by Fabiola Gianotti, The President of the Republic of CERN Director-General, Eckhard Elsen, Mozambique, Filipe Nyusi, and his delega- Director for Research and Computing, tion were welcomed on 26 February 2018 Charlotte Warakaulle, Director for by Eckhard Elsen, Director for Research International Relations, Manfred Krammer, and Computing. President Nyusi visited The President of the Republic of Mozambique, Filipe Nyusi, in the LHC tunnel. (Image: Julien Ordan/CERN) EP Department Head and Management the ATLAS control room and the under- Liaison for Austria, Pippa Wells, Head ground experiment area, as well as the of Member State Relations, Friedemann LHC tunnel. He also signed the CERN Eder, CERN Austrian Circle Spokesperson guest book. and Stephanie Molinari, Chief of Protocol.

4 NEW CHAIRS FOR THE ANTIPROTON DECELERATOR USERS COMMUNITY

Stefan Ulmer and Chloé Malbrunot are the newly elected chairs of the Antiproton Decelerator Users Community

this end, they are in regular contact with Canada's particle accelerator centre, the spokespersons of the approved experi- TRIUMF. She came back to CERN in 2012 ments, AEgIS, ALPHA, ASACUSA, ATRAP, as a local leader of the Stefan Meyer BASE and Gbar. They organise the annual Institute (SMI), Vienna, to work at the ADUC/ELENA meetings and propose the ASACUSA antihydrogen spectroscopy ex- schedule for the distribution of beam time periment. In 2013, she obtained a CERN in collaboration with the PS/SPS coordina- research fellowship and joined the AEgIS tor. experiment. Chloé has been a member of CERN's research staff since 2016 and is Stefan Ulmer, the newly elected chair, is still involved in both AEgIS and ASACUSA. a chief scientist at RIKEN, Japan, and New and old ADUC chairs: from left to right, Walter Oelert, Chloé Malbrunot, Stefan Ulmer, Horst Breuker. the founder and spokesperson of CERN's Walter Oelert led the team that observed (Image: CERN) BASE collaboration. He and his team at the world's first antihydrogen atoms in BASE have performed the most precise 1995. A member of the ATRAP experi- measurement of the proton magnetic mo- ment, he has been the ADUC chair since CERN has two essential frontiers for ment ever achieved, as well as the most 2000. One of his achievements as ADUC new discoveries: the high-energy physics precise measurement of the proton-to- chair was to initiate and organise a work- programme at the LHC and the low- antiproton charge-to-mass ratio. In 2017, ing group for the ELENA project. He rep- energy precision studies at ISOLDE and BASE reported a 350-fold improved mea- resented the project at several meetings of the Antiproton Decelerator (AD). In re- surement of the magnetic moment of the the SPSC and the SPC. After the approval cent years, several globally recognised antiproton. In addition, Stefan has in- by the Research Board he participated to milestone results have been achieved at vented a reservoir trap technique that en- the construction of the machine. the low-energy antiproton frontier. For the ables BASE to operate independently of last 17 years, this programme has been the AD. Based on this method, he demon- Horst Breuker became CERN's PS/SPS chaired by Walter Oelert, who was joined strated the trapping of antiprotons for more coordinator in 2009. At that time, he by Horst Breuker as deputy chair in than 405 days. For his work on high- started to work on the ELENA project. At 2012. After those many years of fruit- precision comparisons of the fundamental the beginning of 2013, he became a mem- ful, constructive and visionary service, new properties of protons and antiprotons, he ber of the ASACUSA collaboration. chairs Stefan Ulmer (RIKEN) and Chloé received the 2014 IUPAP Young Scientist Malbrunot (CERN) were elected by the AD Prize in Fundamental Metrology. New challenges await the ADUC and its experiment spokespersons last October chairs, due to the higher number of exper- and took over on 23 January this year. Chloé Malbrunot, the newly elected deputy iments and the new operating modes for chair, first came to CERN in 2005 as a physics at ELENA. The chairs of the ADUC (Antiproton summer student. Chloé received her PhD Decelerator Users Community) perform a from the University of British Columbia in The outgoing chairs wish the new incum- variety of tasks. They represent the in- Vancouver, Canada. Her work on low- bents great success. terests of the AD community in discus- energy precision particle physics was car- sions with the CERN management. To ried out at

FEMALE PHYSICISTS AND ENGINEERS GO BACK TO SCHOOL

Female scientists visited 108 local classrooms to mark the International Day of Women and Girls in Science

On the International Day of Women ing at CERN, the University of Geneva and and Girls in Science (11 February) and EPFL. These women talked about their ca- throughout the preceding week, female sci- reers and their daily work, revealed the entists and engineers visited schools in the answers to a few of science's mysteries, local area to talk about their jobs. sometimes even conducted small experi-

Some 2400 pupils between the ages of 7 and 18 from 108 different classes had the opportunity to meet 47 women work-

5 Cristina Bahamonde Castro, chemical and nuclear en- gineer, talking about her job during one of the visits at a school in Geneva (Image: Sakura Horiguchi, Chandieu School) ments, and answered numerous questions from the captivated pupils, who were de- Last year, 34 volunteers visited 70 class- on subjects ranging from supernovas to ab- lighted with the talks. rooms in the local area. solute zero and the speed of light. The visitors received an enthuasiastic welcome No doubt they've inspired lots of budding scientists and engineers!

COMPUTER SECURITY: CURIOSITY CLICKS THE LINK

Only the curious click the link – and put their digital assets at risk

Oh, how wonderful e-mails are. And from unknown senders, on random attach- make sense. Neither does an attachment chats. And the web. All this interconnec- ments from unknown authors, on random from Deutsche Telekom if you've never tivity. Blue lines underneath keywords ev- webpages of unknown origin? With one lived in Germany, or an e-mail in a lan- erywhere. Links. URLs. Redirections. wrong click, your computer might get in- guage you've never spoken. Your favourite All taking us to more information. More fected. With one single infection, your celebrity will never send you naked pho- cat photos. More distractions. Awesome. digital life gets exposed. For many of us, tos and your bank will never ask you to Like Christmas, with presents and yet more our computers, and even more so our reset your password. And the advert presents to open. An infinity of presents. laptops, smartphones or tablets, are the promising you thousands of dollars for no But some presents might result in a rude central digital focal points of our lives: we work is a scam, like anything else of- awakening. . . store our personal photos and videos on fered to you “free” on the internet. Read them, as well as lots of private documents, more about identifying malicious e-mails The underlying assumption in the above is and we use them as a central hub to ac- here (https:/ / cern.ch/ security/ recommen that you trust the originator of the e-mail, cess our bank accounts, to communicate dations/ en/ malicious_email.shtml). the chat or the webpage, the creator of the with our closest friends (on Facebook or blue line, the links and the URLs . . . and Twitter, or via video or audio streams) or Hence, only the curious click the link – and Santa Claus for the presents. But what if to consult our favourite health applications put their digital assets at risk. you shouldn't? Would you enter a shabby to check out our well-being. One sin- bar in a dark alley downtown (and risk get- gle infection and all those photos, videos, ting beaten up)? Would you dare put your documents, bank accounts and commu- nication channels, as well as access to hand in a rabbit hole (and risk getting bit- Do you want to learn more about computer our webcams, microphones and medi- ten by a fox hiding inside)? Would you ac- security incidents and issues at CERN? cal information, are in the hands of peo- cept a parcel from a stranger (and risk go- Follow our Monthly Report (http:/ / cern.ch/ ple with malicious intent. Goodbye data, ing to jail if it turns out to be a package of security/ reports/ en/ monthly_reports. goodbye privacy, goodbye digital life (see drugs)? Would you take the red balloon shtml). For further information, ques- our Bulletin article Enter the next level: from Pennywise the clown and follow him tions or help, visit our website (http:/ / Doxware (https:/ / security.web.cern.ch/ around the corner? cern.ch/ Computer.Security) or contact us security/ reports/ en/ articles.shtml)). at [email protected]. Surely not! But why is it that many people So, be sensible! If you've just got divorced, still throw this “surely not” over board and The Computer Security Team click on random links in random e-mails a love letter from your ex-spouse doesn't

6 Official communications

119TH ACCU MEETING

Agenda for the 119 th ACCU meeting to (b) Election of ACCU Chairperson ACCU meetings are attended by the be held on Tuesday, 6 March 2018 10. Any Other Business Director General and members of the at 9:15 a.m. in Room Georges Charpak 11. Agenda for the next meeting Directorate, other members of the CERN (Room F, 60/6-015) management and departmental represen- The Advisory Committee of CERN Users tatives, the Head of the Users' Office 1. Chairperson's remarks (ACCU) is the forum for discussion be- and a representative of the CERN Staff 2. Adoption of the agenda tween the CERN Management and the Association. Other members of the CERN 3. Minutes of the previous meeting representatives of CERN Users to re- Staff attend as necessary for specific 4. 40 years of ACCU view the practical means taken by CERN agenda items. for the work of Users of the Laboratory. (a) The beginnings The mandate of ACCU is available on: Chairperson: Dragoslav-Laza Lazic (b) CERN in the 1980s http://accu.web.cern.ch/content/mandate ([email protected]) 5. News from the CERN Management Secretary: Michael Hauschild 6. Data Privacy Protection There are one or two Delegates from ([email protected]) 7. Report on services from SMB each Member State (two Delegates from Department the large Member States), one Delegate Anyone wishing to raise any points un- 8. Users' Office News from each of the Associate Members, der “Any Other Business” at the upcom- 9. Matters arising four Delegates from non-Member States ing ACCU meeting is invited to contact (NMS), and two from CERN. The list the appropriate User representative, or the (a) Endorsement of a new ACCU of ACCU members is available on: Chairperson or the Secretary. representative for the Housing http://accu.web.cern.ch/content/accu- http://accu.web.cern.ch/ Service review meeting members

SUMMER WORK FOR CHILDREN OF MEMBERS OF THE PERSONNEL

During the period from 11 June to 07 day of the contract, and must have insur- Completed application forms must be re- September 2018 inclusive, there will be a ance coverage for both illness and acci- turned by 3 April 2018 at the latest. The limited number of jobs for summer work dent. The duration of all contracts will be results of the selection will be available by at CERN (normally unskilled work of rou- 4 weeks and the allowance will be CHF the end of May 2018. tine nature), which will be made avail- 1500.- for this period. Candidates should able to children of members of the apply via HR Department's electronic re- For further information, please contact: personnel (i.e. anyone holding an em- cruitment system (http://ert.cern.ch): [email protected] Tel. 72855 ployment or association contract with the https://jobs.web.cern.ch/job/13123 ([email protected] Tel. 74151) Organization). Candidates must be aged between 18 and 24 inclusive on the first HR Department

7 CERN HEALTH INSURANCE SCHEME (CHIS): CHANGES TO THE SUPPLEMENTARY CONTRIBUTIONS

As previously announced, as of 1 March 1. an income derived from a profes- low. The relevant regulatory provisions 2018 the CHIS will apply a new scale sional activity (i.e. income from can be found in Section 2 of Chapter VII, for the supplementary contributions (see employment or self-employment, or Art. XII 1.06, V 1.02 and XV 1.04 of the the Official Communication of 12 July a retirement pension) in excess of CHIS Rules. 2017 (https:/ / home.cern/ cern-people/ 2500.- CHF; and of ficial-communications/ 2017/ 07/ cern-h 2. no adequate primary health insur- The most significant change is the replace- ealth-insurance-scheme-chis-new-rules ance other than the CHIS. ment of the five income bands used so -1-september)). This concerns present far to determine the supplementary contri- and former Staff Members or Fellows, and The supplementary contribution is a butions by a set of twelve bands. These Beneficiaries of the Pension Fund, who monthly lump-sum payable in addition to new bands and the corresponding supple- are Main Members of the CHIS and whose mentary contributions are as follows (all 1 the monthly contribution, which is deter- spouse has: mined on the basis of the spouse's gross amounts are monthly, in Swiss francs): monthly income according to the table be-

Spouse's Gross Income From (excl.): Spouse's Gross Income To (incl.): Supplementary Contribution 0 2500 0 2500 4500 170 4500 6500 267 6500 8500 365 8500 10500 462 10500 12500 559 12500 14500 656 14500 16500 753 16500 18500 851 18500 20500 948 20500 22500 1045 22500 No limit 1142

Staff Members and Fellows will be no- Questions regarding the new supple- tified of their new supplementary con- mentary contributions should be ad- tribution in their March 2018 payslip. dressed to the SHIPID Service: by e- 1As per Article S IV 1.02 of the Former Staff Members or Fellows and mail at [email protected] or by tele- Staff Rules and Regulations, the term beneficiaries of the Pension Fund will phone at +41 (0) 22 766 43 67 (on “spouse” includes registered partners be notified of any change in their sup- Mondays or Thursdays between 10:00 plementary contribution by e-mail or and 12:00). postal mail.

8 Announcements

WHAT'S NEW FOR THE ACCELERATORS?

This year's LHC performance workshop celerators in the upcoming year, the last Wednesday 7 March at 2.00 p.m. took place in Chamonix from 29 January year of Run 2, and plans for the Long Main Auditorium to 1 February. Shutdown 2, which will start in December. Read also Frédérick Bordry's opinion Frédérick Bordry, Director for Accelerators Summary Session of the LHC piece here (https:/ / home.web.cern.ch/ and Technology, will give a conclud- Performance Workshop 2018 (https:/ / cern-people/ opinion/ 2018/ 02/ preparin ing summary session. He will deal with the indico.cern.ch/ event/ 705545/ ) g-last-year-lhc-run-2). lessons learnt in 2017, operation of the ac-

A NEW EDH DOCUMENT TO CONFIRM ORDER RECEPTION

On Friday, 2 March, the “Reception of - A new design, with clearer and more rel- You will find additional information in the goods and services” EDH document will re- evant information; user guide available in the EDH document place the “Delivery Acceptance” document. (“Help” button). - More suitable help elements, with tooltips Its objectives remain the same: the techni- on specific fields; IPT and FAP departments cal contact confirms that the ordered goods and services have been delivered and that - A survey to understand your satisfaction they comply with the order. with the supplier's performance;

Why did we change the document? - The document can now be used to con- firm the reception of all services (including We didn't have a standard tool for confirm- contracts). ing the delivery of a service, or for gath- ering your feedback on our suppliers' per- This new document will be easier to use, formance. Also, both the objective and the and will also enable CERN, via the satisfac- content of the previous document were of- tion survey, to compile reliable, long-term ten perceived as unclear. data to make more informed decisions on how to manage relationships with our sup- So what's new? pliers.

ALICE'S 25TH ANNIVERSARY

The ALICE collaboration is pleased A drink will follow the jubilee session. to announce the celebration of its If you wish to participate, please regis- 25thanniversary and invite you to the ju- ter by 14 March, using the following link: bilee session that will take place on: https://indico.cern.ch/event/702897/.

Wednesday, 21 March 2018 at 3.30 p.m. in the Main Auditorium

9 AXEL – 2018 - INTRODUCTION TO PARTICLE ACCELERATORS

AXEL-2018 is a course series on parti- Target audience : designed for technicians If you are interested in AXEL-2018, cle accelerators, given at CERN within the who are operating an accelerator, or whose please discuss with your supervisor. framework of the 2018 Technical Training work is closely linked to accelerators, but it Registration is required, participants Program. As part of the BE Department's is also open to technicians, engineers, and must sign up via the following link: Operation Group Shutdown Lecture se- physicists interested in this field. https://cern.ch/course/?089AXE01. ries, the general accelerator physics mod- ule has been organized since 2003 as a Pre-requirements : The course does not The detailed program is available on the joint venture between the BE Department require any prior knowledge of acceler- AXEL-2018 indico web page (https:/ / indi and Technical Training, and is open to a ators. However, some basic knowledge co.cern.ch/ event/ 704869/ ). wider CERN community. of trigonometry, matrices and differential equations, and some basic knowledge of A small contribution of CHF20,- is re- The lecturer is Rende Steerenberg, Group magnetism would be an advantage. quested when registering to covers the leader of the BE-Operation Group. cost for the printed syllabus. The series will be composed of 10 one- Programme : Basic Mathematics; hour lectures (Monday 05.03.2018 – Fri Attendance will be recorded in the personal Transverse Optics; Lattice calculations; 09.03.2018, from 09:00 to 10:15 and from training records. Resonances; Longitudinal Motion; Transfer 10:45 to 12:00), given in English with ques- Lines, Injection and Ejection; Longitudinal tions and answers also possible in French. Organizers: & Transverse Beam Instabilities, Colliders. Participation in all lectures is encouraged, Rende Steerenberg/BE-OP/79086/164518 to allow people to gain maximum benefit Technical Training/HR-LD/72844/74924 from the course.

6TH THEMATIC CERN SCHOOL OF COMPUTING

• Parallelism, performance and pro- About: gramming models for exploitation of The Thematic Schools are part of the resources on a single box or on a annual series of CERN Schools of cluster. Computing, to promote advanced learn- • The central role of data manage- ing and knowledge exchange in scientific ment, input and output. computing among young scientists and en- • Evolution of hardware and platforms gineers involved in particle physics or other and their requirements on data anal- sciences. ysis and tools. They are shorter and more focused than the main Summer CERN School of The sixth Thematic CERN School of The School is open to postgraduate stu- Computing, but still maintain the same Computing (tCSC 2018) will take place this dents and research workers with a few guiding principles: an academic dimension year in Split, Croatia, from 3 to 9 June years' experience in elementary particle on advanced topics; theory and practice; 2018. The theme is “High Throughput physics, computing, engineering or related networking and socialisation. Distributed Processing of Future HEP fields. All applicants are welcome, includ- Data”, looking at: ing former and future participants in the For more information on the CSC, see: main CSC summer school. http://cern.ch/csc. • The challenges of HEP data pro- For registration and more infor- cessing in the post-upgrade scenar- Applications will be accepted until mation on the tCSC 2018, see: ios. Sunday, 11 March 2018. https://indico.cern.ch/e/tCSC-2018. • Scientific software as the key to Participation is limited to 24 students. achieving the deliverables of the To register, please go to: Sebastian Łopienski,´ CSC Director (HL-)LHC physics programme. https://indico.cern.ch/e/tCSC-2018.

10 5-8 MARCH AT CERN: 11TH INVERTED CERN SCHOOL OF COMPUTING

Programme and registration: About the iCSC https://indico.cern.ch/e/iCSC-2018. The Inverted Schools of Computing (iCSC) are part of an annual series of schools or- iCSC 2018 programme ganised by the CERN School of Computing This year's programme, selected from a (CSC). The iCSC consists of lectures pre- range of CSC 2017 student proposals, fo- sented over a few days by former CSC cuses on challenging and innovative topics, students, providing advanced education in including: specialist topics. The Inverted School pro- vides a platform for them to share their knowledge, turning the students into teach- • Blockchain and Decentralised ers. Consensus th The 11 edition of the “Inverted” CERN • Backend Systems School of Computing (iCSC 2018) will take • Complexity and Data Structures The CERN Schools of Computing place at CERN from 5 to 8 March 2018 in • Data Analysis The two other Schools that make up the an- the IT Auditorium (Room 31/3-004). • Identity Federation nual CSC series this year are: • Medical Imaging An excellent programme is planned, con- • Open MP • The Thematic School (tCSC 2018) sisting of lectures and hands-on exercises • Parallel Programming taking place in June in Split, Croatia; selected from a range of proposals submit- (https:/ / home.cern/ cern-people/ ted by CSC 2017 students. You are not This year's lecturers are: announcements/ 2018/ 02/ 6th-the obliged to attend every lecture, indeed you matic-cern-school-computing) can simply attend the lectures and exer- • The Main School (CSC 2018) taking • Alejandro Avilés, Bity SA cises that interest you the most. place in October in Tel Aviv, Israel. • Lennaert Bel, Nikhef • Plácido Fernández, CERN/University Attendance is free and open to everyone Carlos III of Madrid For further information on the at CERN, and the event will be webcast for • Gabriele Gaetano Fronzé, INFN & CERN School of Computing, see those who cannot attend in person. Università di Torino/Subatech et IMT- http://cern.ch/csc or e-mail comput- Atlantique Nantes [email protected]. Registration is not compulsory, but will al- • Christian Graf, Max Planck Institute low you to enjoy coffee courtesy of the for Physics Sebastian Łopienski,´ Director, CERN CSC, and obtain a hard copy of the booklet, • Hannah Short, CERN School of Computing which includes the lecture slides and notes • Victoria Tokareva, JINR (while stocks last). • Georgios Voulgarakis, CERN

Ombud’s corner

COMMUNICATION: NURTURE YOUR RELATIONSHIPS!

It's not uncommon in communication for a “So, Tibor, you're still behind with the weld- Why don't we both work equal amounts of hidden message to take on more impor- ing. I'm going to have to work overtime overtime so we can meet the deadline?” tance than what's actually said. yet again.” Hidden message: “You're in- Hidden message: “Neither of us is to blame capable of meeting deadlines. Our work's for the situation, so let's try to share the Example: you're a workshop technician behind schedule because of you and it'll be consequences equally. Let's work together and you're waiting for your colleague, Tibor, your fault if I have to work overtime. I obvi- to meet the deadline.” to finish some welding so you can assem- ously can't trust you.” ble a cryostat that needs to be delivered to Although the objective facts are the same, an experiment next week. Tibor's work has Instead, you could say: the message is very different. been held up by a late delivery that's be- yond his control. You're probably going to “Tibor, I can see that you've only been able Another example: You're the secretary of a have to make up the time yourself by work- to do half the welding, which means I won't working group and you've forgotten to call ing overtime. You say to him: be able to finish the assembly on time.

11 the technical coordinator to find out when for me, please?” In other words: “I may be was scornful, threatening or very respect- she's available. You say to your assistant: your supervisor, but I admit that I'm disor- ful. ganised and I know I can count on you.” “Markus, call Stefania for me quickly. These examples show that the way you I didn't have time yesterday evening.” People often don't realise the effect their communicate betrays your attitude to your Hidden message: “I'm allowed to give you words have on their relationships with their colleagues. Be aware of the effects of how orders because I'm your supervisor.” colleagues, conveying a lack of respect, you speak and learn to decode the mes- self-importance, blame or even threats. We sages hidden behind what others say. You could ask him to do the same thing in remember the tone of a conversation long a more respectful way: after we've forgotten what was said. Try If you'd like to comment on any of my ar- to remember the last difficult conversation ticles or suggest a topic that I could write you had with someone. You probably don't “Markus, I'm sorry, I forgot to call Stefania about, please don't hesitate to e-mail me remember exactly what the problem was, again yesterday evening. Could you do it at [email protected] . but you remember clearly whether the tone

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