User name nanda
Log entry time 22:14:11 on October16,2006
Entry number 187344
keyword=Compton TuneFinished compton chicane tune about an hour into beam delivery with background rates for electrons less than 200 Hz/uA. Beam quality is quite good. Photon rates are somewhat higher. However we had changed the photon detector configuration this morning, so perhaps the rates are not reliable.
Interestingly enough, ramping the current higher improves the background rate/uA. See Fig.1
FIGURE 1
