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    User name jpchen

    Log entry time 17:56:21 on December17,2007

    Entry number 221679

    keyword=Loop 2 is operational.

    Reduced loop1/loop3 coolant and increased loop 2 coolant.
    Loop 1 HP heater is at 115 watts, loop 3 at 175 watts.
    Loop 2 at 90 watts, at 6.5 K, 54 psi. Fan speed is at 48 Hz.
    Changed loop 2 PID from 600/40/0 to 300/15/0.

    Under this condition, loop 1 and 3 should not exceed beam current 20 uA. Loop 2 should not exceed 5 uA.


    FIGURE 1

    FIGURE 2