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    User name bogdanw

    Log entry time 18:42:41 on January30,2001

    Entry number 56183

    keyword=Left Arm HV

    The PMT #9 on Gas Cherenkov has now HV divider with POSITIVE polarity.
    It is powered from module #15.8 . I put +2500 V and get ~ 120 mV for one ph.e.
    and the noise rate about 100 Hz.
    During last weekend HV crate replacement one of HV module was not installed to the crate which likely is the reason why EPIC control was not operational for this
    HV crate.