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    User name deng

    Log entry time 05:42:19 on September18,2009

    Entry number 290300

    keyword=target: JT valve changed from 54.0% to 54.5% then back to 54.0%

    The heater power was down to 0.01W again, increase JT valve changed from 54.0% to 54.5%. But the cryoflows frequently goes over 25 and triggers the alarm. Changed the JT valve back to 54%, the cryoflows goes over 25 less frequently. The heater power also drifts frequently at the first.


    FIGURE 1

    FIGURE 2