User name Moffit
Log entry time 13:08:07 on June26,2004
Entry number 126966
Followups:
keyword=Coil Modulation Slopes during HAPPEX-HeAttached are some preliminary results of the normalized detector-bpm slops from coil modulation during HAPPEX-He. Here, I've removed runs that were not on the Helium Racetrack cell as well as runs where the Target IOC was in a "frozen" state (was not reading back the target encoder position). Scale on the X-axis was made to show the magnitude of the slopes, and an additional cut was made on each slope to remove outliers. It is apparent here that the detectors show a large sensitivity to target X (with the expected sign flip)... and a smaller sensitivity to the Energy BPM (12x). Further analysis will be done to look at angle sensitivity. These plots also provide us with an idea of the error in these slopes.
FIGURE 1
