User name xfzhu
Log entry time 03:48:19 on June13,2001
Entry number 62949
keyword=Right arm shower calibrationshower_calib.dat for right arm shower/preshower counter calibration has been updated. the old parameter files has been saved as shower_calib.dat.612 in:
/adaql1/home/adaq/e99117/espace
Fig1 shows the pedstals has shifted from what they were in march during E94010 running. The following plots are analyzed from run20340:
topleft: shower adc sum with old pedstals file
topright: preshower adc sum with old pedstals file
bottomleft: shower adc sum with new parameters
bottomright: preshower adc sum with new parameters
Fig2 Energy resolution has been improved, with new parameter, the bottom one with new parameters shows better result than the top one . the sigma is 0.067 for p=1112 for run20340. With high momentum for other runs, we can expect better resolutions.
FIGURE 1
FIGURE 2
