User name X. Zheng
Log entry time 11:38:23 on January18,2003
Entry number 92380
Followups:
keyword=Right arm gas cherenkovChecked right arm gas cherenkov performance using run #20410. The summed ADC spectrum (first figure) looks fine. Again the only cut applied here is the focal plane X cut.
In the second figure is the x_fp dependence of ADC sum, with y_fp>0 (top) and y_fp<0(bottom), respectively. We see a drop in the mirror performance at +x_fp part. But it is again not a big problem for on-line analysis. Applying PID cuts in both gas cherenkov and pion rejector will ensure the data quality.
FIGURE 1
FIGURE 2
