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User name M Friend
Log entry time 13:08:18 on May 8,2010
Entry number 321732
This entry is a followup to: 320846
keyword=Compton neutron trigger rates
Compton neutron trigger rates with a boron hut around the lead hut: Rates are now 295kHz (HV=-1900, run 22802), whereas without the boron hut (with lead) the rate was 310kHz. The normalized rate is 6kHz/uA (from the DAQ), whereas the normalized rate was 6.2kHz/uA with just the lead hut. The rate with the high discriminator level (the stripchart rate) has also decreased from 580Hz/uA to 430Hz/uA. The boron hut may or may not have helped.