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IDTB07 report https://conferences.fnal/idtb07/

IDTB07 report https://conferences.fnal.gov/idtb07/. 2007/01/23, GLDCAL meeting K. Kawagoe (Kobe U). (Extruded Mega-strip under development). Signal from scintillator strips (@Shinshu-U). b -ray source ( 90 Sr). Strip size : 1 cm x 4.5 cm x 3 mm covered with reflector film. collimator.

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IDTB07 report https://conferences.fnal/idtb07/

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  1. IDTB07 reporthttps://conferences.fnal.gov/idtb07/ 2007/01/23, GLDCAL meeting K. Kawagoe (Kobe U)

  2. (Extruded Mega-strip under development)

  3. Signal from scintillator strips (@Shinshu-U) b-ray source (90Sr) Strip size : 1 cm x 4.5 cm x 3 mm covered with reflector film collimator Bias voltage : V0 + 2.1 V Temperature : 25 oC Trigger Direct readout WLSF readout Light yield ~ 21 p.e. Light yield ~ 13 p.e. Question: 94.5/347.9=0.27, 55.63/253.4=0.21. If this is true, direct readout is better in uniformity ??

  4. Comments on Fermilab TB facility • Our experience of MTBF in 1999 • No Cherenkov counters. Only SRD (synchrotron radiation detector) could be used for electron ID. • We had to bring our own drift chambers to measure the incident position. • Suffered from electric noise in the PMT signals, whose origin could not be identified. • Suffered from multi-particle events due materials in the beam. • Now we have • Gas Cherenkov counters and beamline TOF for particle ID • Tracking with MWPCs, a pixel station, and SciFi detectors. • Less material in the beam. Great improvements. Thanks a lot !! • For stable MPPC operation • Hope stable temperature at the experimental hall: MPPC is sensitive to temperature • Hope to have less electric noise than our 1999 TB.

  5. Support for DESY TB from CALICE • LED driver, monitoring system (CAN) • Ivo Polak (Prague) • DAQ, online monitoring • Georgios MAVROMANOLAKIS (Cambridge University/FNAL) • Data analysis, GRID • Roman Poeschl (LAL)

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