Test Beam @ Fermilab Deutschlands gr#246;#223;tes 试验梁的“费米实验室德国的GR和# 246和# 223；试验；.pptVIP

V. Zutshi,CALICE TB Meeting,DESY,Oct05 Test Beam @ Fermilab Vishnu V. Zutshi NIU/NICADD Acknowledgements Erik Ramberg for information, discussions and plots. Test Beam Facility at Fermilab Test Beam User Areas 2 beam enclosures 7 user stations (the last one is downstream of beam dump) 2 climate controlled huts 2 control rooms Gas delivery system (any two) Office space MTBF Facility Detectors 2 beam line Cerenkov counters which can be operated independently 2 stations of x-y silicon strip detectors Three 0.5mm pitch MWPC’s ? DAQ Three 1.0mm pitch MWPC’s ? ACNET DAQ will be minimum bias triggered. Facility detector data held in event buffers and read out during and after spill Facility Detectors Trigger DAQ Switch Yard 120 Spill Structure Program Planning determines spill structure Issue is time used up in beam extraction Currently a spill is 4 sec. every 2 min. Coupled with the 2k DAQ buffer limit ? 20Hz The current spill structure maximizes the overall duty cycle for MIPP Beamline operation 120 GeV protons on 40cm of Al Proton mode: 120GeV protons transmitted through target Secondary mode: maximum momenta 66 GeV minimum tune achieved so far ? 3.7GeV droppable beam stops in user area Beam spot from 3-5 mm2 to 3-5 cm2 Cerenkov Results Cerenkov Results (contd.) Rates Schedule/Future possibilities 14 wk. shutdown in Mar. (?) 2006 MIPP data taking till Oct. 05, has asked for extension * * Web page for MTBF: /MTBF-w, or Fermilab-at-Work ? MTBF Free Height ~ 4m, Free length upto 9m Control room Electronics room MT6B MT6A CAMAC NIM Scintillator MT6SC4 MT6SC3 MT6SC2 MT6SC1 MT5 Cerenkov MS4 Power Supply Service Area NIM Upstream components: MT3SC MT4SC1 MT4SC2 MT4 Cerenkov MT5SC Control room Electronics room MT6B MT6A DAQ computer () CAMAC crate 1 CAMAC crate 2 CAMAC crate 3 CAMAC crate 4 CAMAC crate 5 MWPC MWPC MWPC Silicon MS4 Power Supply Service Area Delivers MI beam to MTBF in conjunction with pbar Not