User name J. Singh
Log entry time 19:38:26 on August12,2003
Entry number 110460
This entry is a followup to: 109666
keyword=y target reconstruction check fo single foilas noted in 109666, we should check the y-target position of the single carbon foil at the start of every kinematic. this is out of fear of saturation effects in the septum. i have added some info the the paw physics kumac. somewhere in the middle of the paw physics replay, you'll be asked to "Enter the y-target limit in meters." the default (0.02) should be sufficient. in the execution window of paw, it will tell you the center of the foil in two different ways:
(1) finding the maximum of the peak
(2) fitting to a gaussian about the peak
they should match within errors and be less than 10 cm.
fig 1 is the execution window where the info is.
fig 2 is the graph window which shows the y-tg spectrum and fit.
FIGURE 1
FIGURE 2
