Test Beams Around the World (well, a very small world…) CERN (transparencies from Horst Breuker...
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Transcript of Test Beams Around the World (well, a very small world…) CERN (transparencies from Horst Breuker...
Test Beams Around the World(well, a very small world…)
CERN (transparencies from Horst Breuker from CERN AIDA meeting)
DESY(transparencies from Norbert Meiners for ALCPG11)
Carsten HastMarch 17th 2011
Test Beams in Europe
• European AIDA initiative • AIDA: Advanced European Infrastructures for Detectors
and Accelerators• 2011 to 2014 funds 28 Million Euros (8M from the EU)• http://aida.web.cern.ch/aida/index.html• Funds among many other things access to the test
beams at CERN and DESY• It’s a European initiative but not a closed club, so in
order to participate hook up with your friends abroad…
2C.Hast, ESTB workshop SLAC, March 2011
Line Momentum range
Momentum resolution
Particles Nominal Intensity (*)
Intensity range (relative)
Remarks
T7 1-10 GeV/c (±) 0.4% mixed 0.3-1.0*106 ~1.0*10-3-5 T8 24 GeV/c 0.015% protons 5-20*1010 from MCR primary T9 1-15 GeV/c (±) 0.6% mixed 0.3-1.0*106 ~0.02-6
T10 1-7 GeV/c (±) 0.5% mixed 0.3-1.0*106 ~0.02-4 T11 1-3.6 GeV/c (±) ~1% mixed 0.3-1.0*106 ~0.02-5
Irrad1 24 GeV/c 0.015% proton 8-30*1010 from MCR primary Irrad2 several MeV unselected neutrons depends
on T8
*) Intensity is for 1% momentum bite, nominal target and 2.1011 ppp on target and intensity collimator(s) wide opened.
Spill 400 ms (could be > 500 ms at 20 GeV/c) Some more intensity control exists for the primary beam (0.5-1.0)
and via the target efficiency (~0.02-1.0).
Typical Beam Parameters
CERN Test Beam
• 2010 AIDA Shifts : – 600 (8h) in Test Beams– 200 (8h) in Irradiation Facility
• Users at PS Test Beams : 20 Groups• Users at SPS Test Beams : 46 Groups• Users at Irradiation Facility : 18 Groups
• To apply for beam time and more info go to:
http://sps-schedule.web.cern.ch/sps-schedule
6C.Hast, ESTB workshop SLAC, March 2011
C.Hast, ESTB workshop SLAC, March 2011
CERN Schedule
Test beams are available
PS T9, T10, T11,SPS H2, H4, H6, H8 2011 : begin May to mid November2012 : begin May to mid November2013 : no beams at all at CERN2014 : maybe beams from the PS from mid of the year; Horst Breuker does not expect beams from the SPS2015 : begin May to mid November everything depends on the performance of the LHC and its experiments; They have to reach 10 fb-1 in the run which started last weekend ...
DESY Test Beam Facilities- Status and Plan
Norbert Meyners, DESY
ALCPG Workshop 2011 Eugene, March 19-23, 2011
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DESY Test Beam
DESY provides three test beam lines with 1-5 (-6) GeV/c electrons Very simple system, no beam optics, just momentum selection via dipole magnet.Bremsstrahlung beam generated by a carbon fibre in the circulating beam of the electron/positron synchrotron DESY II.
Photons are converted to electron/positron pairs with a metal plate. Beam is spread out into a horizontal fan with a dipole magnet.Collimator cuts out final beam.
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Test Beam Layout
T21
T22
T24 T24/1
MD Magnet
MVDTelescop
e
PCMAG
AIDATelescop
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Facilities for Test Beam User
All three test beam lines have Interlock systemsMagnet controlPatch panels with preinstalled cablesGas warning systemsFast internet connection (DHCP)(100Mbit / 1Gbit possible)
The user can ask for:Translation stagesPremixed gasesBig Dipole Magnet (1T)Superconducting Magnet (1T)Beam Telescopes:
MVD Telescope AIDA Telescope
The users typically bring:Data Acquisition incl. computersTrigger scintillators
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Review 2010
13 User Groups53 Weeks scheduledSevere accident
Vacuum leak at one carbon fibre holderUnfortunately two were dismantled lost two beams for 5 weeks (May/June) Luckily we could squeeze all user in one beam area (24)Water leak at dipole magnet (24) (end May) 1 user lost 1 day Provisional fix stayed until regular maintenance week Uff! Exchange dipole magnet
Design and build new fibre holders Installation in summer 2011
LeakFibres
Fibre
Current Fibre Target
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Summary
DESY test beam is running: Feb. 14 - July 10 and Aug. 15 - Dec. 21; 2011Users can apply for beam time through DESY test beam coordinators up to three weeks possible, longer terms negotiable
testbeam.desy.deYou can apply for test beam time at
DESY
Or contact: [email protected]
You can apply for financial support
See aida.web.cern.ch
Summary
Test Beams available:
• 2011 CERN, DESY, FNAL and a little bit ESTB• 2012 CERN, DESY, ESTB (possibly hadrons later in ‘12)• 2013 DESY, ESTB, FNAL• 2014 CERN (maybe), DESY, ESTB, FNAL• 2015 CERN, DESY, ESTB, FNAL
ESTB will be a much appreciated addition to the dwindling portfolio of possible test beams
14C.Hast, ESTB workshop SLAC, March 2011