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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)



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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