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    User name jpchen/dimitri

    Log entry time 16:50:50 on December 4,2006

    Entry number 190025

    keyword=set target operating temperatue to 7.0K

    Set operating temperature from 6.6K to 7.0 K to gain cooling power.
    Pressure is about 205 psia.
    At 6.6K when CHL stable (before the ESR crash), we had 300W HP heater
    with 18.5g/s. 30 uA took away about 150 W. With 7.0K, the HP heater should reach ~400 W when CHL stablize, which would allow to have beam current of ~60-70 uA. To go higher in operating tempeatuer, it would be safer to bleed out some He3 gas to the tank to keep pressure not too close to the venting pressure (~260 psia).


    FIGURE 1