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Recent Developments in Advanced Accelerator Technologies and Experiments at DESY

In July 2011, DESY announced significant advancements in accelerator technologies, highlighted by Brian Foster’s acceptance of the Alexander von Humboldt Professorship. Key topics include the progress of the Linear Collider (ILC) and synergy with the European XFEL. Groundwork for the XFEL injector began, with tunneling machine arrival set for August. OLYMPUS experiment preparations continue, aiming for data collection in 2012. Additionally, analyses from HERA data are ongoing, contributing to over 40 published papers in 2010.

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Recent Developments in Advanced Accelerator Technologies and Experiments at DESY

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  1. News from DESY. Joachim Mnich Plenary ECFA Grenoble, July 2011

  2. News • Brian Foster accepted Alexander-von-Humboldt Professorship • Topics: • Advancedacceleratortechnologies • Linear Collider(ILC, Synergywith XFEL) • HERA Analyse ( LHC) • Start June 1st, 2011

  3. Status European XFEL • Injectorbuilding on DESY site • Arrival oftunnelingmachinebeginningof August • Completionofacceleratortunnel • Test stands for accelerator modules under construction

  4. FLASH II • Project approved • Civil enginneering started • Integration of future facility for PWA Experiments Use one bunch per linac pulse of extracted FLASH-II beam for plasma acc experiments

  5. Linear Collider • ILC Interim Report • Important milestone on the way to the TDR next year

  6. 9mA Experiments at TTF2/FLASH TTF2/FLASH: unique worldwide facility ACC 4-7

  7. Feb. 2011 Studies • Operation with Gradient Spread • From single RF source • Now ILC baseline (±20%)[XFEL and FLASH also] • Specifically: achieving constant gradients for each individual cavity during beam pulse • to within few percent • close to gradient limits ACC7 ACC6 40.0 35.0 31.5 MV/m ILC <Gacc> 30.0 25.0 20.0 15.0

  8. S1-Global @ KEK • Hybrid design with components from all three regions • KEK: 4 cavities in 1 cryostat • DESY: 2 cavities • FNAL: 2 cavities • Comprehensive test programme • International team • Performance test of different component designs • 2 types of HP coupler • 3 types of cavity tuner • Programme now complete • Results being analysed and consolidated • Module to be disassembled end of the year INFN / ZANON cryostat

  9. ILC-HiGrade: Second-Sound Diagnostics • Development of routine second-sound diagnostics for XFEL vertical test • Location (via triangulation) of quench • originally developed at Cornell • QC of XFEL cavity production • Link to T-mapping and optical inspection

  10. OLYMPUS Experiment at DORIS • Measurement of elastic cross section ratio e+p vs e-p • Use BLAST detector (MIT) Schedule: • 2010 set-up experiment at DESY • 2011 commissioning • 2012 data taking (3 months)

  11. Status OLYMPUS • Test installation target chamber Jan 2011 • July 2011 OLYMPUS in DORIS • Schedule • Test & installationofcomponentsuntilmidJuly • Roll into DORIS ring 15.7. • Commissioning (parasitic) until end 2011 • Data runs 4 weeksearly2012 plus 8 weeks end of 2012

  12. Backup

  13. Analysis of HERA Data: Examples • b-quarks content of the proton • Completion of analyses and combination of experiments according to plans • More than 40 papers published in 2010 • Measurement of αs

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