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

Beam Facilities at CERN

North AreaSPS Test Beams

East AreaPS Test Beams

East Area PS Test Beams

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

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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: testbeam-coor@desy.de

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