User name R. Michaels
Log entry time 11:07:54 on July27,2005
Entry number 149659
keyword=cavity check run 2290
Spectr. DAQ run 2290 had beam sometimes off, sometimes 0.8 uA (DC,
not pulsed, I think). Raster was off & no target. Cavity monitors
were checked, see fig 1. The positions are fairly well correlated to
striplines. This was plotted for "beam on" (see arrow). If you
plot "beam off" data you get a cloud. I do not know what causes the
constellation clouds when beam is on. Fig 2 shows calibration of 4AY.
The others monitors look similar, but there was litlle movement in
X (I am waiting for a raster run). This is for spectrometer DAQ
only. So, for this DAQ the resolution is about 116 microns -- it is
a combination of cavity + striplines. This is decent.