Make New Entry,
Make Followup Entry
User name jroche
Log entry time 02:17:16 on October14,2010
Entry number 334774
keyword=Compton rates got higher: aborted Compton data taking
An hour agao or so, the compton rate went way up while MCC was performing a bcm calibration for hall C. After thsi exercise was done, the compton rate came back 35% higher (cavity off). I called Eric who advised me to simply abort compton data taking for tonight.
Turn off the HV for the detector.
Figure 1: zoomed on the "regular rates" to show the increase of rates before and after the MCC BCM calibration
Figure 2: full screen to show the compton rates during the MCC BCM calibration.