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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 gov idtb07

IDTB07 reporthttps://conferences.fnal.gov/idtb07/

2007/01/23, GLDCAL meeting

K. Kawagoe (Kobe U)

slide3

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 ??

comments on fermilab tb facility
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.
support for desy tb from calice
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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