Minutes of the BEAST meeting
Tuesday October 27th 12:00 JST

We reviewed the readiness of BEAST and prepared a list of items to finish.

  • Organization:

    We agreed that we must now begin preparing for BEAST shifts. Please let me know your long term KEK travel plans and availability for BEAST shifts. I will then begin to prepare a BEAST shift schedule starting from December 1. Leon agreed to prepare a USER's manual with instructions on (1) how to start and end runs and (2) How to adjust voltages and gas flow.

  • General :

    To attack the ground loop problem on the inner drift tubes, Gary Varner and Bob Mitiguy recabled, grounded, labeled and rationalized the cables on the BEAST detector. The same must now be done on the DAQ side (this work has now begun). Note that after November 1 access is limited to the beamline. After November 13, the concrete minishield will be closed.

  • CsI Installation:

    The CsI crystals will be tested first in Oho with a standalone DAQ and then moved to Tsukuba Hall by November 6th. The CsI installation should be completed before the minishield is closed. The DAQ has to be integrated with the BEAST DAQ. This will be done by Kuzmin and Sidorov. Spare MOSFETs will be used to measure the integrated radiation dose at the crystals.

  • Diodes and Drift Tubes:

    Gary Varner has completed 3 diode readout boxes. The existing diode box will be used as a spare. Gary and Leon will work on installing these boxes. Calibration with the Cadium source must still be done.

  • DAQ:

    Leon will start testing Sakai's program for KEK-B to BEAST NSM communication. He will try to readout magnet and vacuum parameters. Glenn Moloney will try to modify the UNIDAQ so that the data is output in PANTHER format and can be easily analysed with standard BELLE software.

  • SVD:

    The SVD group has been very busy with debugging the BELLE SVD detectors. They will start installing the BEAST ladders and electronics after this work is completed. Tsuboyama showed a block diagram of the cables and readout chain for BEAST. The detector to hybrid cables are 20 cm, these are followed by 2 m long cables to the repeater DOCK and then 30 m cables to the VME crate. Operation of the BEAST ladders will be useful for debugging the SVD readout chain under realistic "battle" conditions and will provide measurements of SVD background occupancy.

  • Simulation:

    The full set of background predictions with the updated BEAST lattice must be finished. This is being studied by Sahu, Swain and Yamamoto.