Make New Entry, Make Followup Entry
User name M Friend
Log entry time 19:14:47 on September 4,2009
Entry number 288054
keyword=Compton Photon Beam PositionI did a scan of the Compton photon beam position. I found that the actual postion of the beam for the GSO centered is the table position x=73.5 (finger position 53.5) and y=38.5 (figner position 18.5). We originally thought that the beam was at GSO position x = 72.25 and y=43.75, so this was a useful exercise, since we were off by ~5mm vertically. So should we raise the beam, or lower the collimator?
FIGURE 1
FIGURE 2
