User name A.Vacheret
Log entry time 13:14:07 on August10,2001
Entry number 70346
keyword=charge asymmetry slope calibrationWe made a calibration for one charge asymmetry slope (insertable HWP out).
list of runs and RHWP position :
run...........HWP pos...........Aq +- errAq
run 1887.........400....................562+-26
run 1889.........410....................340+-24
run 1890.........420....................179+-26
run 1891.........430..................... 1+_ 35
run 1892.........440..................-339+-37 (this point doesn't make sense)
run 1893.........450..................-279+-24
The slope is -17 ppm/step now instead of -7.6 which was used before. It's seems to
be consistant with the overcorrection seen in last couple of runs...
run 1892 is not considered in the calibration we had almost no beam during this run.
FIGURE 1
