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    User name jpchen

    Log entry time 15:04:42 on October16,2006

    Entry number 187310

    keyword=For Target Operators

    For target operator:
    To operate LH2 target with CHL 4K coolant, we need to be careful to
    not freeze the target.
    1) Before reboot ioc, turn the auxiliary heater (#3) on and put voltage to the value corresponding to power slightly less than the
    HP heater power in.
    2) If temperature keeps dropping, please reduce coolant slowly by closing J-T valve (1% per minute), and can also try to use the auxiliary heater. Then page the target-on-call.