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User name V. Sulkosky
Log entry time 22:22:04 on April 27, 2012
Entry number 379842
This entry is a followup to: 379835
keyword=Re: Wrong LHRS Q1 Setting
The LHRS Q1 current was about 7.5% high compared to what was desired. If
I got my directions correct, this will cause the vertical focus from Q1 to
be stronger than desired, which will probably affect the momentum and
theta_tg variable more than y_tg and phi_tg. This will cause a different
optics and hence acceptance. The best thing to do is compare a run with
the wrong Q1 current and one with the correct setting to see how all
four target quantities change with the difference in Q1.
A copy of this log entry has been emailed to: cg2ja@virginia.edu,rshneor@jlab.org,jpchen@jlab.org,mhuang,jixie,doug