DOCSLIB.ORG

DESY Focuses on HERA

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
DESY Focuses on HERA intrepid young physicists from 20 auditorium at the Plaza of America. countries, including The Flying Cir­ This specially-commissioned work cus of Physics' from Copenhagen featured scientifically accurate lyric and Amsterdam, began their dra­ verse by French astrophysicists Jean matic demonstrations of physics prin­ Audouze and Michel Cassé, music ciples. Thousands of visitors partici­ by Graciane Finzi, and a dance alle­ pated in the fun, which showed how gory of the Big Bang and the creation fascinating science can be. Interac­ of the Universe with choreography by tive video stations, with programmes Jean Guizerix, Wilfride Piollet and specially developed at CERN in col­ Jean-Cristophe Paré from the Opéra laboration with Olivetti, helped visi­ de Paris. (The sound track, featuring tors explore science. film star Michel Piccoli, has been re­ The carnival continued with scien­ corded by Radio-France.) For more tists and gymnasts, disguised as par­ mundane tastes, a CERN scientist ticles, printed circuits, atoms and Ein­ Latino funk band jammed on the cen­ stein clones, dancing around a tral Expo 92 stage until late into the particle accelerator float. Throughout night. the day CERN's glamorous 'Les Tired but happy, the scientists pre­ Horribles Cernettes' belted out their pared to return to their laboratories. special brand of 'hardronic' rock with 'Genius, Originality and Participa­ songs about the hassles of science tion the scientists from CERN life and how making it with physicists showed the public that physics can is tough. be really interesting,' applauded the The day finished on a more serene Expo 92 Information Bulletin. Maybe The CERN Day at Seville finished with the note with the première of a 'Universe physics should go to the ball more of­ première of a specially-commissioned of Light' ballet playing to a packed ten. 'Universe of Light' ballet. DESY focuses on HERA On 1 October, a special 'Fest- years of presenting news bulletins of grated, overall economic integration Kolloquium' at DESY marked the offi­ HERA construction progress, was was not proceeding so smoothly. cial start of the research programme proud to announce the start of opera­ After Vice-Chairman of the DESY at the new HERA electron-proton tions. Research Council Gustav Kramer collider, which began operations ear­ Leonhard Hajen, Senator for Sci­ congratulated the HERA team on lier this year (July, page 2). The tim­ ence and Research of the City of their accomplishments, keynote ing could not have been better, as Hamburg, reflected his city's pride in speaker Christopher Llewellyn Smith, HERA performance had improved by being home to a major world Labora­ long a proponent of the benefits of a factor of ten during the two weeks tory. Hinrich Enderlein, Minister of electron-proton experimentation, beforehand. More than 600 guests Science, Research and Culture of painted a picture of the HERA experi­ assembled in one of the big halls pre­ Land Brandenburg reported the suc­ mental objectives which was well il­ viously used for assembly of major cessful integration of the Zeuthen lustrated with appealing analogies. components for HERA experiments. (formerly East Berlin) Laboratory into Gus Voss covered the HERA ma­ Introducing the ceremony, Volker an enlarged DESY infrastructure. chine and its most recent perform­ Soergel, Chairman of the DESY Di­ While similar research institutions ance. The machine is behaving as rectorate since 1981, after many were also being successfully inte­ expected and Voss felt confident that 8 CERN Courier, December 1992 Probably the best cur rent transducer you can buy... Features of the ULTRASTAB* Current Transducer: • Max. current ranges 600 or 2000 Amps • Programable from 40 to 2000 Amps • Low feed back noise - down to 2 yV • Low output noise ~ down to 6r» ppm • Low temperature coefficient - down to 0,1 ppm/°C • High linearity - up to 2 ppm • Wide frequency bandwidth ~ DC to 500 kHz DANFYSIK A/S~0K~4O4CUyliirtge Denmark Tel.:+45 46 78 8150 Fax:+4546731551 DANFYSIK Telex: 43136 21 b Circle advertisement number on reader service form KAPTONI® Insulation for super-conductors at cryogenic temperatures Main Superconducting Coil The remarkable properties of New KAPTON CI System is being Du Pont KAPTON Polyimide Film specifically developed for super­ make it the ideal insulation mate­ conducting insulation in cryogenic rial at cryogenic temperatures. applications. KAPTON offers resis­ Excellent performance character­ tance to radiation, creep, cold flow istics at extremes of temperature and cut-through. It is available for and unique physical and dielectric testing in both customised film properties have made KAPTON the thickness and adhesive coatings. material of choice in engineering To find out more about KAPTON, design for over 25 years. please call or write. KAPTON ® Du Pont's registered trademark Solving engineering problems at every level. Du Pont Electronics, KAPTON High Performance Films, 2, chemin du Pavillon, CH-1218 Le Grand Saconnex, Geneva. - Tel. (022) 717 5533 - Fax. (022) 717 6152 95 Circle advertisement number on reader service form CERN Courier, December 1992 9 On 1 October, a special 'Fest-Kolloquium' at DESY marked the official start of the research programme at the new HERA electron-proton collider, which began operations earlier this year. Christopher Llewellyn Smith of Oxford (left) covered the new physics HERA will at­ tack, while G us Voss of DESY described the HERA machine itself. Llewellyn Smith has been proposed as the next Director General of CERN, in which case he would take office on 1 January 1994. (Photo P. Waloschek) In July, maximum intensity per pro­ ton bunch had been restricted to about 20 per cent of the 750 microamp design value because of difficulties in the proton supply up­ stream. After sorting out some mag­ netic problems in the DESY III proton synchrotron, the proton level in­ creased, only to run into another bot­ tleneck in the intermediate PETRA ring. However this is being worked on and the proton should soon improve. With careful beam centering and tune adjustments, the proton beam can be kept for about a day, the elec­ tron beam being refreshed several times during this period. The HERA superconducting magnets are per­ forming well, and, last but not least, ugly 'persistent' eddy current prob­ lems widely expected to plague pro­ it would reach its design objectives luminosities increased from the 6 x ton injection have not materialized, (luminosity) within one or two years. 1028 per sq cm per s achieved in July thanks to the special monitoring sys­ First results from the experiments to above 1029. Already ten times the tem based on reference magnets. (which had also been aired several luminosity provided during June/July Running has used about ten days before at the DESY Theory has been delivered, the improve­ Workshop - see -below) were re­ ments coming mainly from better sta­ 600 guests were at the HERA 'Fest- ported by Sergei Levonian (Moscow) bility of the proton beam and from Kolloquium'at DESY. for the H1 experiment and Matthias increased reliability. (Photo K. Desler) Kasemann (DESY) for Zeus. Finally Bernd Neumann, Parliamen­ tary State Secretary of the Federal Ministry of Research and Technol­ ogy, assured the audience that his Government will fulfil all its obliga­ tions for high energy physics, where Germany's annual expenditure is cur­ rently running at about 500 million deutschmarks, mainly for CERN and DESY. The goal, he said, is now op­ timum utilization of existing resources and facilities. HERA back on After a short shutdown following its initial production run in July, the new HERA electron-proton collider re­ started on 20 August. Maximum 10 CERN Courier, December 1992 bunches per beam. The design figure at low frequency (S-band) with con­ their public debut at the International is 210 bunches in both beams, but ventional cavities and lower fre­ Conference on High Energy Physics efforts to push more current into the quency TESLA (superconducting) in Dallas in August (October, electron ring are currently coming up schemes. However with having to page 6). against problems. These are not look after the nine DESY machines These initial presentations show avoided by the powerful bunch-to- currently operating, DESY's machine dramatically how HERA probes deep bunch damping system, based on a specialists already have a lot on their inside interesting and hitherto very design successfully used in the plate. remote new kinematical regions, now PETRA ring, which has already dem­ called 'deep diffractive' in the trade. onstrated how well it can counter co­ and theory with flavour As well as charting photoproduction herent instabilities in both PETRA rates at higher energies, results al­ and HERA beams. The problem can With first results from the HERA elec­ ready given at Dallas, the analyses be partially overcome by careful orbit tron-proton collider now emerging, had subsequently sharpened to pro­ steering, but this is treating the symp­ this year's traditional Theory Work­ duce evidence for photoproduction toms rather than the cause. A special shop at DESY could change gear. jets, confined sprays of hadrons sig­ positron run planned for November This annual event has become a fo­ nalling constituent interactions deep could reveal more. cus for the large theory community in inside the target protons. With the luminosity per bunch al­ DESY and even further afield. Under After this foretaste of HERA physics ready running at about 30% of the the theme 'Flavour Physics', the to come, attention turned to the main design level, the electron and proton meeting set the scene for HERA's business of the meeting. Today's intensities are the main obstacle to appearance, and looked at the poten­ Standard Model uses six quark fla­ more HERA collisions. tial impact this new experimental vours, grouped pairwise with three The design energy of the electron venture could have.
Load more

Recommended publications
  • From God's Particle to Dark Matter
    SAE./No.65/October 2016 Studies in Applied Economics FROM GOD'S PARTICLE TO DARK MATTER Joachim Mnich Johns Hopkins Institute for Applied Economics, Global Health, and Study of Business Enterprise From God’s Particle to Dark Matter Investigating the Universe: Getting the Big Picture by Colliding Small Particles1 by Joachim Mnich Copyright 2016 by the author. About the Series The Studies in Applied Economics series is under the general direction of Prof. Steve H. Hanke, Co-Director of The Johns Hopkins Institute for Applied Economics, Global Health, and the Study of Business Enterprise ([email protected]). About the Author Joachim Mnich is the Director for Particle and Astroparticle Physics at the Deutsches Elektronen-Synchrotron (DESY) and Professor of Physics at the University of Hamburg. He is currently Chair of the International Committee for Future Accelerators (ICFA), a panel working under the auspice of the International Union of Pure and Applied Physics (IUPAP) to promote international collaboration in all phases of the construction and exploitation of high energy accelerators. He is also a member of numerous national and international strategy and advisory boards. Prof. Joachim Mnich has a graduate degree in electrical engineering and obtained a PhD in particle physics, both from Aachen University. In the past, he has worked on large particle physics experiments at DESY and CERN. His interest is experimental particle physics, particularly precision tests of the electroweak interaction, and the design, development, and construction of modern tracking detectors. Since 2000, he has been a member of the CMS experiment at the Large Hadron Collider at CERN and contributed to the construction of the silicon-based central tracking detector as well as to studies to test the Standard Model of particle physics.
    [Show full text]
  • Recent Changes to the E- / E+ Injector (Linac II) at DESY
    Proceedings of LINAC08, Victoria, BC, Canada TUP008 RECENT CHANGES TO THE e+ /e- INJECTOR (LINAC II) AT DESY M. Hüning#, M. Schmitz, DESY, Hamburg, Germany Abstract required together with the high revolution frequency of The Linac II at DESY consists of a 6A/150kV DC PIA a reduction of beam pulse duration. electron gun, a 400 MeV primary electron linac, an Today DESY II with its injector Linac II provides 800 MW positron converter, and a 450 MeV secondary electrons and positrons for the synchrotron radiation electron/positron linac. facility DORIS, the synchrotron radiation facility under The Positron Intensity Accumulator (PIA) is also construction PETRA III, and for test beam targets inside considered part of the injector complex accumulating and DESY II. The injection into HERA via PETRA II is shut damping the 50 Hz beam pulses from the linac and off, but there is an option to inject directly into HERA if transferring them with a rate of 6.25 Hz or 3.125 Hz into there is the requirement by future projects. the Synchrotron DESY II. The typical positrons rates are 6⋅1010/s. LINAC OVERVIEW DESY II and Linac II will serve as injectors for the two synchrotron light facilities PETRA III and DORIS. Since Injection System PETRA III will operate in top-up mode, Linac availability The primary electron beam is produced by a 120 kV of 98-99% is required. DORIS requires positrons for pulsed DC diode gun. Beam pulses of up to 6 A and 4 μs operation. Therefore during top-up mode positrons are duration are produced.
    [Show full text]
  • European XFEL Status of Technical Developments Massimo Altarelli
    European XFEL Status of Technical Developments Massimo Altarelli On behalf also of Serguei Molodtsov, Andreas Schwarz, Thomas Tschentscher and Karl Witte European XFEL - Status of Technical Developments The European XFEL – “Start-up” Version 2 Some specifications Photon energy 0.8–12.4 keV beam transport & instruments ~1000 m Pulse duration <100 fs Pulse energy few mJ undulator ~200 m super-conducting accelerator 10 Hz/4.5 MHz (27 000 b/s) accelerator ~1700 m 3 beamlines/6 instruments ¾ extension to TDR version with 5 BLs and 10 instruments possible Various other extensions possible SASE 2 tunable, planar e- ¾ variable polarization ID’s ~0.15 – 0.4 nm ¾ electrons shorter wavelengths 17.5 GeV ¾ possibly CW operation SASE 1 - e planar SASE 3 Experiments First beam 2014 0.1 nm tunable, planar 0.4 – 1.6 nm Start of user operation 2015 1.2 – 4.9 nm (10 GeV) Fourth European XFEL Users' Meeting, Hamburg, 27-29.01.2010 Massimo Altarelli, European XFEL European XFEL - Status of Technical Developments Scientific instruments 3 Ultrafast Coherent Diffraction Imaging of Single Particles, Clusters, and Biomolecules (SPB) Structure determination of single particles: atomic clusters, bio-molecules, virus particles, cells. Materials Imaging & Dynamics (MID) Structure determination of nano- devices and dynamics at the nanoscale. Femtosecond Diffraction Experiments (FDE) Time-resolved investigations of the dynamics of Hard x-rays solids, liquids, gases High Energy Density Matter (HED) Investigation of matter under extreme conditions using hard
    [Show full text]
  • Collider Physics at HERA
    ANL-HEP-PR-08-23 Collider Physics at HERA M. Klein1, R. Yoshida2 1University of Liverpool, Physics Department, L69 7ZE, Liverpool, United Kingdom 2Argonne National Laboratory, HEP Division, 9700 South Cass Avenue, Argonne, Illinois, 60439, USA May 21, 2008 Abstract From 1992 to 2007, HERA, the first electron-proton collider, operated at cms energies of about 320 GeV and allowed the investigation of deep-inelastic and photoproduction processes at the highest energy scales accessed thus far. This review is an introduction to, and a summary of, the main results obtained at HERA during its operation. To be published in Progress in Particle and Nuclear Physics arXiv:0805.3334v1 [hep-ex] 21 May 2008 1 Contents 1 Introduction 4 2 Accelerator and Detectors 5 2.1 Introduction.................................... ...... 5 2.2 Accelerator ..................................... ..... 6 2.3 Deep Inelastic Scattering Kinematics . ............. 9 2.4 Detectors ....................................... .... 12 3 Proton Structure Functions 15 3.1 Introduction.................................... ...... 15 3.2 Structure Functions and Parton Distributions . ............... 16 3.3 Measurement Techniques . ........ 18 3.4 Low Q2 and x Results .................................... 19 2 3.4.1 The Discovery of the Rise of F2(x, Q )....................... 19 3.4.2 Remarks on Low x Physics.............................. 20 3.4.3 The Longitudinal Structure Function . .......... 22 3.5 High Q2 Results ....................................... 23 4 QCD Fits 25 4.1 Introduction.................................... ...... 25 4.2 Determinations ofParton Distributions . .............. 26 4.2.1 TheZEUSApproach ............................... .. 27 4.2.2 TheH1Approach................................. .. 28 4.3 Measurements of αs inInclusiveDIS ............................ 29 5 Jet Measurements 32 5.1 TheoreticalConsiderations . ........... 32 5.2 Jet Cross-Section Measurements . ........... 34 5.3 Tests of pQCD and Determination of αs .........................
    [Show full text]
  • DESY) DESY Is One of the World's Leading Accelerator Centres and a Member of the Helmholtz Association
    Deutsches Elektronen- Synchrotron Deutsches Elektronen-Synchrotron (DESY) DESY is one of the world's leading accelerator centres and a member of the Helmholtz Association. DESY develops, builds and operates large particle accelerators used to investigate the structure of matter. DESY offers a broad research spectrum of international standing focusing on three main areas: accelerator development, construction and operation; photon science; particle and astroparticle physics. Facts and figures Established in Hamburg on 18 December 1959 • Locations: Hamburg and Zeuthen (Brandenburg) • Budget: 192 Mio.€ (Hamburg 173/Zeuthen 19 Mio.€ ) , Financing: 90% on the national level (German Federal Ministry of Education and Research); 10% on the state level (City of Hamburg and Federal State of Brandenburg) • Employees: approx. 2000, including 650 scientists working in the fields of accelerator operation, research and development • Guest scientists: more than 3000 from over 40 countries p.a. • Training: more than 100 young people in commercial and technical vocations • Young scientists: more than 700 diploma students, doctoral candidates and postdocs Year DESY activities 2009 Start with XFEL 2010 Start with PETRA III 2010 „Go“ for CSSB building 2011 Start of FLASH Extension: FLASH II 2012 Completion of CFEL building 2012 DORIS III shutdown 2013 Start of construction PETRA III Ext. North , East International and national cooperations: HSE Organisation CFEL, CSSB, PIER, LHC, Ice Cube, CTA etc. The classical Safety, Fire protection and Environmental Group and Radiation Protection Group are administrative departments. Personnel safety and experimental safety is under the administration of the different work departments. In total there are 12 engineers, 10 technicians and 5 administrative assistants to support DESY employees and guests in safety, health and environmental interests.
    [Show full text]
  • The European X-Ray Free-Electron Laser Technical Design Report
    XFEL X-Ray Free-Electron Laser The European X-Ray Free-Electron Laser Technical design report Editors: Massimo Altarelli, Reinhard Brinkmann, Majed Chergui, Winfried Decking, Barry Dobson, Stefan Düsterer, Gerhard Grübel, Walter Graeff, Heinz Graafsma, Janos Hajdu, Jonathan Marangos, Joachim Pflüger, Harald Redlin, David Riley, Ian Robinson, Jörg Rossbach, Andreas Schwarz, Kai Tiedtke, Thomas Tschentscher, Ivan Vartaniants, Hubertus Wabnitz, Hans Weise, Riko Wichmann, Karl Witte, Andreas Wolf, Michael Wulff, Mikhail Yurkov DESY 2006-097 July 2007 Publisher: DESY XFEL Project Group European XFEL Project Team Deutsches Elektronen-Synchrotron Member of the Helmholtz Association Notkestrasse 85, 22607 Hamburg Germany http://www.xfel.net E-Mail: [email protected] Reproduction including extracts is permitted subject to crediting the source. ISBN 978-3-935702-17-1 Contents Contents Authors ...................................................................................................................... vii Foreword .................................................................................................................. xiii Executive summary .....................................................................................................1 1 Introduction ..........................................................................................................11 1.1 Accelerator-based light sources..................................................................11 1.2 Free-electron lasers ....................................................................................13
    [Show full text]
  • Discovery of Gluon
    Discovery of the Gluon Physics 290E Seminar, Spring 2020 Outline – Knowledge known at the time – Theory behind the discovery of the gluon – Key predicted interactions – Jet properties – Relevant experiments – Analysis techniques – Experimental results – Current research pertaining to gluons – Conclusion Knowledge known at the time The year is 1978, During this time, particle physics was arguable a mature subject. 5 of the 6 quarks were discovered by this point (the bottom quark being the most recent), and the only gauge boson that was known was the photon. There was also a theory of the strong interaction, quantum chromodynamics, that had been developed up to this point by Yang, Mills, Gell-Mann, Fritzsch, Leutwyler, and others. Trying to understand the structure of hadrons. Gluons can self-interact! Theory behind the discovery Analogous to QED, the strong interaction between quarks and gluons with a gauge group of SU(3) symmetry is known as quantum chromodynamics (QCD). Where the force mediating particle is the gluon. In QCD, we have some quite particular features such as asymptotic freedom and confinement. 4 α Short range:V (r) = − s QCD 3 r 4 α Long range: V (r) = − s + kr QCD 3 r (Between a quark and antiquark) Quantum fluctuations cause the bare color charge to be screened causes coupling strength to vary. Features are important for an understanding of jet formation. Theory behind the discovery John Ellis postulated the search for the gluon through bremsstrahlung radiation in electron- proton annihilation processes in 1976. Such a process will produce jets of hadrons: e−e+ qq¯g Furthermore, Mary Gaillard, Graham Ross, and John Ellis wrote a paper (“Search for Gluons in e+e- Annihilation.”) that described that the PETRA collider at DESY and the PEP collider at SLAC should be able to observe this process.
    [Show full text]
  • DESY HERA-B, Fourth HERA Experiment
    Around the Laboratories The HERA-B detector, using an internal target in HERA's proton ring. DESY HERA-B, fourth HERA experiment he phenomenon of CP violation T (the subtle disregard of physics for invariance under simultaneous particle-antiparticle and left-right reversal, observed so far only in decays of neutral kaons) is one of the very fundamental issues in particle physics. The availability of neutral B mesons - particles composed of a heavy beauty quark and a light down quark - provides a fresh arena for observing CP violation, opening up new tests of theories on the origin of this mysterious effect. CP violation in B decays is now the target of a number of major initiatives all around the world. One approach, which emerged about two years ago, is to use DESY's HERA proton ring as a eventually hit the beam pipe or the netic calorimeter and a muon detec­ source of B mesons, operated as a collimator system. In the HERA-B tor system. The challenge resides in fixed target accelerator by installing setup, thin wires positioned inside the the huge number of particles entering an internal target inside the machine machine vacuum serve as a target the detector - over 109 per second. In vacuum. (HERA, with two separate for these halo protons and provide many aspects, the requirements of rings, was designed to provide well-localized, high-intensity source. the HERA-B detector correspond to electron-proton collisions.) A group Since CP violating decays of B those of detectors at LHC, and centred around the old ARGUS mesons are rare, HERA-B aims for HERA-B construction necessarily collaboration at DESY's DORIS ring very large interaction rates of about exploits the extensive R&D carried submitted a Letter of Intent for "An 30 to 40 MHz, corresponding to 3 to out towards LHC.
    [Show full text]
  • Physics Results from the First Electron-Proton Collider HERA
    DESY <>r> -02r, March 1995 KS001829947 R: FI 0EC07443217 ■*DE007443217* Physics Results from the First Electron-Proton Collider HERA A. De Roeck Drutachcs Elektrotten-Synchrotron DESY. Hamburg DISTRIBUTION OF THIS DOCUMENT IS UNLIMITED FOREIGN SALES PROHIBITED ISSN 04IS-9S13 BEST 95-025 ISS35 0418-9833 March 1995 PHYSICS RESULTS FROM THE FIRST ELECTRON-PROTON COLLIDER HERA * Albert De Roeck Deutsches Eiektronen-Synchroiron DESY. Hamburg 1 Introduction On the 31st of May 1992 the first electron-proton (ep) collisions were observed in the HI and ZEUS experiments at the newly commissioned high energy collider HERA, in Hamburg. Ger­ many. HERA is the first electron-proton coEider in the world: 26.7 GeV electrons collide on 820 GeV protons, yielding an ep centre of mass system (CMS) energy of 296 GeV. Already the results from the first data collected by the experiments have given important new information on the structure of the proton, on interactions of high energetic photons with matter and on searches for exotic particles. These lectures give a summary of the physics results obtained by the Hi and ZEUS experiments using the data collected in 1992 and 1993. Electron-proton, or more general lepton-hadron experiments, have been playing a major role in our understanding of the structure of matter for the last 30 years. At the end of the sixties experiments with electron beams on proton targets performed at the Stanford Lin ­ ear Accelerator revealed that the proton had an internal structure.1 It was suggested that the proton consists of pointlike objects, called partons. 2 These partoas were subsequently identified with quarks which until then were only mathematical objects for the fundamen ­ tal representation of the SU(3) symmetry group, used to explain the observed multiplets in hadron spectroscopy.
    [Show full text]
  • Examples for Experiments That Can Be Done at the DESY Beam Lines
    Examples for Experiments that can be done at the DESY Beam Lines Beamline for Schools 2019 Note Please note that in order to succeed in Beamline for Schools you can either propose a creative experiment or idea yourself or take one of the examples and work out the details of that experiment. Contents 1 Explore the world of antimatter 3 2 Characterization of MicroMegas (or other) detectors 3 3 Measure the beam composition of the DESY beam line at various beam momenta 3 4 Measure beam absorption properties of materials 4 5 Generate your own photon beam 4 6 Searching for new particles 4 7 Build and test your own detector 4 2 Example 1: Explore the world of antimatter The particles in the beam at the DESY beam line are either electrons or positrons. Some of the properties of antimatter have only been theoretically predicted but never been measured in an experiment. Right now professional physicists at CERN are preparing experiments to measure the effect of gravity on antimatter or to observe its hyperfine structure. While such experiments are not feasible within the boundary conditions of BL4S, you could compare the properties of electrons and positrons, for example by observing how they are deflected in a magnetic field. Example 2: Characterization of MicroMegas (or other) detectors Recently, the Beamline for Schools scientists built four state of the art MicroMegas detectors. Studying them in full is a long ongoing process that requires a series of measurements in a number of conditions. What is the maximum rate of the detectors? What is their spatial resolution? How do the environmental conditions affect their performance? Many more questions are waiting to be answered.
    [Show full text]
  • Collaboration Between Agilent and DESY Created a New Kind of Ion Getter Pump
    Agilent case study: Research—Accelerated Collaboration Between Agilent and DESY Created a New Kind of Ion Getter Pump When researchers come to Hamburg to see the particle accelerators at DESY, they have a lot of questions. Questions about the interactions of tiny elementary particles. Questions about the behavior of new types of nanomaterials. Questions that will take time and testing to answer. But one of the most common questions they ask is simply, “What is this?” The object of their curiosity is actually a series of objects attached, every 6 m, on the accelerator of the European XFEL, the world’s largest X-ray laser, that stretches out before them for more than 3 km. Torsten Wohlenberg “They always ask because it looks very peculiar,” says Winfried Decking, Engineer scientist and coordinator for accelerator construction at DESY, a leading MVS DESY research center with 50 years of experience building and operating accelerators. The Pump and the System Decking, a physicist, is referring to the unique design of the in-line ion getter pumps that he and his colleague, Torsten Wohlenberg, an engineer, helped to develop in collaboration with Agilent. (The cross-functional team from Agilent included R&D, marketing, and order-fulfilment personnel.) “Our idea was to design a pump directly around the beam pipe,” Wohlenberg says. Compared to traditional designs, which use T-pieces to connect pumps to the pipe, the in-line pump is far easier to install. Indeed, the core of the in-line Winfried Decking pump—manufactured to precise dimensions and strict tolerances—becomes part of the pipe through which the beam passes.
    [Show full text]
  • Particle Physics at Desy Hera Belle / Belle Ii Ilc Cta Theory
    CTEQ/MCnet School 2016 QCD and Electroweak Phenomenology 6-16 July 2016 WELCOME DESY, Hamburg Program: • Introductions to QCD and electroweak theory • Introduction to Monte Carlo generators • Parton densities: introduction and tutorial • to 8 exciting days • Monte Carlo tutorials • Matching and merging higher orders of lectures & tutorials • W, Z and Higgs production at the LHC • Heavy quarks • Jet physics • BSM searches at the LHC • Dark matter and Astroparticle physics • to DESY • Future colliders • to Hamburg Local organising committee: Markus Diehl, Judith Katzy, Katerina Lipka, Sven-Olaf Moch CTEQ organising committee: Ed Berger, Joey Huston, Karol Kovarik, Tom LeCompte, Jorge Morfn, Pavel Nadolsky, Fred Olness, Frank Petriello, Zack Sullivan, Dave Soper, Nikos Varelas, Werner Vogelsang MCnet organising committee: Stefan Gieseke, David Grellscheid, Stefan Hoeche, Frank Krauss, Peter Richardson, Mike Seymour Katerina Lipka for the Organizers http://qcd2016.desy.de1 Deutsches Elektronen SYnchrotron http://www.desy.de Founded 18 December 1959 • http://www.desy.de • Research centre of Helmholtz Association, Germany’s largest organization for basic research with large-scale infrastructures • Located in Hamburg and Zeuthen (Berlin) • close connections with local universities: Hamburg, Berlin, Potsdam • 2000 staff (650 scientists), 100 apprenticeships, 700 students / postdocs • 3000 guest scientists from 40 countries • Fundamental Research & Applied Science: - accelerator development and operation - photon science, - particle and astroparticle
    [Show full text]