Main INDEX
Monthly INDEX
PREV
NEXT
User name Binet
Log entry time 10:24:53 on September 6,2001
Entry number 73607
Followups:
keyword=Mistune in the Compton Chicane
It seems that there is a problem with the tune of the beam.
Last good measurement was at 12:00 the 9/5.
Now there is a 100% of dead time in the photon detector and there is 1MHz of counting rates in the electron detector (instead of ~1kHz).
My guess for the moment is that it is a halo problem.
First picture: Counting rates in the photon detector (~1 kHz/muAmp, we were running at ~12 muAmp)
Second picture: Counting rates in the photon detector (~nothing because of dead time so huge counting rates)
FIGURE 1
FIGURE 2