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    User name Nilanga

    Log entry time 03:07:48 on March28,2006

    Entry number 168636

    keyword=HV settings on MWDC

    We have changed HV settings on MWDC several times over the last few days. These changes can have an effect on chamber resolution due to variations in drift speed. After the efficiency studies we have done it seems that the HV values used during the last kinematic point are close to optimum. In order to keep drift properties etc. same as in the pevious setting I have set the HV values to the ones we used in that setting.

    HV ch1 = 1630 V
    HV ch2 = 1170 V
    HV ch3 = 1785 V

    We must not change these values for the rest of the run.

    These changes are effective as of run # 3452.