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User name M .Olson
Log entry time 08:01:06 on December11,2006
Entry number 190514
keyword=Owl Shift Summary
Owl Shift Summary:
0003: Start run 1446 He3 (ps1=30, ps2=3000, ps3=4, ps4=300, ps5=1)
0049: Start run 1447 He3 (ps6 changed from 1 to 100 IAW Makis' inst.)
0249: Start run 1448 He3 (ps1 changed from 30 to 50 IAW Makis' inst.)
0259: Run ended, computer deadtime at 0%, changing PS1 to 40 from 50
0300: Start run 1449, HE3 (D.T. back to 14% with ps1 at 40, decided to continue running at this ps1 value. Not comfortable with zero DT)
0459: Start run 1450, He3 (Ps1 set to 45, DT still ~14%)
0659: Ended 1450, Total Coulombs = 2.08
Waiting on beam to return to start run 1451
Plan to take ps1 back to 50 to look again at dead time.
0705: Start run 1451, He3, ps1 back to 50, deadtime still at 14%, no idea what caused 0% deadtime readout earlier (yes, the beam was on)
0730: Ending run 1451 on unstable beam. MCC called, going to send some tune beam to try to lessen the frequency of the beam trips.
0734: Start run 1452, He3