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    User name Kalyan/Pengjia

    Log entry time 03:32:33 on March 3,2012

    Entry number 362852

    keyword=BPM gains

    While doing the second HARP scan point with 1uA pulse beam (out of nine points in 3x3 grid) we discovered that the BPM gain setting was set to "auto gain". We changed the gain to "Gain off" (pre gain set to nominal value corresponding to 100nA) and asked for 100nA CW beam with no raster to do all nine point calibration in a 3x3 grid.

    Now we are waiting for the beam to be come back ....

    FIGURE 1

    FIGURE 2