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    User name Chiranjib

    Log entry time 04:57:06 on November 03, 2008

    Entry number 246376

    keyword=TARGET ACTIVITY

    We are about to take data in the longitudinal polarized He-3 configuration.


    1. Lasers TURNED OFF.

    2. Field is moved to the longitudinal + direction.

    3. With Vertical RF , one NMR measurement is performed in the PICK UP
    coil position. The pumping chamber pick up coil is the transverse one.

    4. PUMPING CHAMBER SIGNAL = 37mV
    UPSTREAM PICK UP SIGNAL = 195 mV
    DOWNSTREAM PICK UP SIGNAL = 200mV.

    5. Polarization at this hour is ~ 47.4 % ( with the calibration constant
    0.12)


    6. Moved back to He-3 position to take beam

    7. With 2 uA current,
    Rates with 3by3 raster
    T1=8.1 KHz and T3=4.9KHz
    Rates with 4by4 raster
    T1= 8.1 KHz and T3 = 4.9 KHz
    Rates with 5by5 raster
    T1= 9.2KHz and 5.4KHz

    8. Beam positions look good.

    A copy of this log entry has been emailed to: jpchen@jlab.org,yqiang@jlab.org,jinhuang@jlab.org