User name Calarco
Log entry time 16:03:05 on June 2,2000
Entry number 42884
Continuation of running at Theta_CM = 135, Phi_CM = 180
Run 1683 ... 0.9M events
Run 1684 ... 0.4M events, 10 cm dummy
Run 1685 ... 0.2M events, 15 cm dummy
Run 1686 ... 0.2M events, 4 cm dummy
Run 1687 ... 0.1M events, carbon
Run 1688 ... harp scan, 923.data
Asked for access at 10:00 to work on trigger, finished at 13:30. We think we
have solved the problem of double peaking in the self-timing TDC spectra
(see entry by Bob Michaels). I have asked MCC to close the hall and called
Eugene for a Moeller measurement. During the access we also changed the
HRSh angle to 34.73 deg and the momentum to 0.7418 GeV for the kinematics
at Theta_CM = 155, Phi_CM = 0.
Runs 1689 - 1692 are timing tests
Run 1693 ... cosmics to check self-timing
Run 1694 ... more cosmics, all PS set to 1
We have not had beam since 10:00 due to accelerator problems. Finally, at
15:40, we have beam again. Eugene will do his Moeller measurements.
I'm outta here!!