Summary of R-HRS Optics Data taking during this owl shift

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User name yez

Log entry time 04:29:38 on April 19, 2011

Entry number 356293

keyword=Summary of R-HRS Optics Data taking during this owl shift

We took some optics data on R-HRS while taking Produciton Data on L-HRS.

E0=3.356, P0_R=2.600 (RQ3=2.2808),Theta=23.00

1, Momentum Scan: Raster On, 4cm Dummy
#3695: +3%: P_R=2.678,RQ3=2.3492, 20uA, 500K events  
#3698: +0%: P_R=2.600,RQ3=2.2808, 20uA, 576K events 
#3704: -3%: P_R=2.678,RQ3=2.3492, 10uA, 426K events

2, Vertex Data: P0_R=2.600,RQ3=2.2808,Theta=23.00
#3699, BeO target, Raster Off, 20uA, 400K
#3700, Multi-C target, Raster Off, 20uA, 400K
#3701, Multi-C target, Raster On, 20uA, 400K

From Fig1,2, you can see the under our kinematics setting, the R-HRS
optics matrix that we are using is worse than previous kinemtics setting
during d-Threshold:
  http://www.jlab.org/~adaq/halog/html/1104_archive/110412163131.html

Hence we need to get good optics data to calibrate the optics to get
better resolution. So far the only data set we miss is Sieve Slit data.

A copy of this log entry has been emailed to: solvigno, doug, johna@anl.gov

Run#3699 for BeO

Run#3700 for Multi-C