User name Lingyan
Log entry time 03:21:49 on January17,2001
Entry number 54873
keyword=radiator linearity checkFor run 1211-1215 and 1216, I estimated the photo yield from the pi+ production.
The following plot is what I got. The five points are correspond to five settings:
0 radiator out&ET
2 radiator out&LH2
4 2% radiator&LH2
6 4% radiator&LH2
8 6% radiator&LH2
The charge and computer dead time for each run were conisidered. The photon yield were normalized so that it is equal to 0 in the first case, and 4 in the third one.
FIGURE 1
