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User name A. Camsonne
Log entry time 10:01:01 on November 3,2009
Entry number 297234
keyword=Compton test - pair synch inverted
We are having a warning since yesterday for the helicity decoding. Rich Holmes suggested to check if the pair synch did not get inverted.
So I used a NIM logic fan the lower group on the side of the pair sync and NIM/ECL converter to invert the signal. So run starting from run 20806 iincluded