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    User name R. Subedi

    Log entry time 08:11:46 on August 31, 2009

    Entry number 287193

    keyword=access activity (host expt may ignore it)

    Took opportunistic access while the CHL recovery was taking place. In both HRS's pvdis setup, added T2 in TDC inputs (zero interference with Happex). Here T2 is S0 front pmt ANDed with S0 back pmt. I took T2 copy from the output of level translator where both NIM outputs were available in both spectrometers (these two NIM outputs in each HRS were not used by Happex, Happex uses only ECL output). After taking one of the outputs downstairs, I terminated other.

    LHRS: T2 replaces usual GC signal in pvdis NIM-ECL module. Since GC is copy of S2 which is SC at present, we don't need both GC and SC in the NIM-ECL module.

    RHRS: T2 goes to pvdis 4th NIM-ECL module ch14 (this used to be the place for BCM Dx10, but now BCM Dx10 is in 6th NIM-ECL module ch6). In addition, I fanned out S2 in downstairs and used these fanned out signals as GC and SC in 755 module (SC and GC are copy of each other at the current running period (gas cherenkov and S1 detectors are physically out from the stack)).

    A copy of this log entry has been emailed to: mcnulty,xiaochao,rsubedi