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    User name jpchen

    Log entry time 18:58:04 on June17,2010

    Entry number 327105

    keyword=switched from warm return to cold return

    We just did the switch from warm return to cold return.
    The inlet temperature (CTD673) is back down to 18K and still decreasing, the return temperature (CTD674) is a little high (43K). Will slowly coming down. Hall A side supply is 28K and return is 40K.
    Scattering chamber vacuum is very good (4*10-7).


    FIGURE 1

    FIGURE 2