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KEK Test Beam Phase II Plan

KEK Test Beam Phase II Plan. Makoto Yoshida (Osaka Univ.) MICE FT workshop @ Daresbury 2005/8/30. Layout of T585. Step 1. High momentum parallel beam without magnetic field Check light yield 3HF dependence 2500 ppm / 5000 ppm on the 4 th station Angle dependence

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KEK Test Beam Phase II Plan

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  1. KEK Test BeamPhase II Plan Makoto Yoshida (Osaka Univ.) MICE FT workshop @ Daresbury 2005/8/30

  2. Layout of T585

  3. Step 1 • High momentum parallel beam without magnetic field • Check light yield • 3HF dependence • 2500 ppm / 5000 ppm on the 4th station • Angle dependence • Dead channel (efficiency) • Cross talk between fibers / views • Position alignment • Station alignment • fiber alignment on station • High speed DAQ ~1kHz is necessary

  4. Step 2 • With solenoid magnetic field • Study tracking performance • Defocused beam in f30cm • Low momentum beam 0.2 – 0.6 GeV/c • Select muons by TOF/ACC • Measure muon momentum by TOF • sT1=50ps, shodoscope=60ps  sTOF=66ps • 300 MeV/c  dp/p = 1.7% • 400 MeV/c  dp/p = 2.8% • Difficulties • decay in flight • path length on spiral track in magnetic field • energy loss

  5. Preparation works • TOF • Establish calibration / online monitoring scheme • Improve support structure for easy manipulation • ACC • Establish calibration with LED • gain monitoring in beam time • DAQ • temperature monitor logging • AFE slow control • Quick VLSB readout

  6. Time line • July, 2005 • KEK-PS T585 has been approved for 1 week beam time (20 shifts) at KEK-PS p2 beam line • Aug. 24th • Start to prepare VLPC Cryostat in p2 experimental area • Successful operation of Cryocooler • Reach 7K • Sep. 1st • Infrastructure in p2 area • Stable operation of Cryostat • Sep. 5th • Slow control by Linux • AFE initialization • Temperature control • VLSB readout in UniDAQ framework • Around Sep. 12th • Cosmic-ray test • establish trigger scheme • test DAQ system • Around Sep. 21th • Place solenoid magnet • Move Cryostat beside solenoid • Sep. 27th– Sep. 30th • Accelerator tuning • Sep. 30th • Start physics run • Could be delayed to Oct. 3rd, if accelerator needs more tuning

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