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    User name kai

    Log entry time 04:13:39 on March13,2011

    Entry number 351434

    keyword=step close JT valve

    We are in 25uA now, and the heat power is still around 100w, mainly due to I stepped open the JT valve by one step during MCC ion chamber calibration. Now I will step close it by one step to keep the power around 60w during production condition (25ua, 10cm He4).


    FIGURE 1

    FIGURE 2