User name M Jones
Log entry time 16:49:26 on October 5,2000
Entry number 49406
keyword=harp scan<\pre>
harp scan. I redid the analysis of the harp bulls-eye scan.
I get values of
offset amp
BPMA x -4.71e-4 1.11
BPMA y 6.75e-4 1.07
BPMB x 3.17e-4 0.95
BPMB y 3.41e-4 0.99
Below is a plot of Harp vs espace bpm values after using
the above coefficients. The slope is about 1.0 with almost
zero offset. The average difference between harp and espace
values is less than 0.1mm for all bpm.
The epics bpm data still needs to be calibrated.
I added the new bpm coefficients to db_89044_e840_h840.
I modified calib.dat on adaqs3 in the bpmcalib directory
so that spot++ will have the same coefficients ( Remember
the spot++ plots position at bpmB and use the same
coordinate system as MCC with +x beam right. Espace
use +x beam left)
FIGURE 1
