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    User name johna

    Log entry time 08:06:21 on December18,2007

    Entry number 221790

    keyword=owl shift summary/list of runs


    All runs, 5uA, nominal ~2x~2 raster, unless otherwise noted.

    Left# Right# Tgt Momentum Notes
    4194 22081 PB-L3 1.9265
    4195 22082 HE-L2 1.9265
    4196 22083 PB-L2 1.9265
    4197 22084 HE-L1 1.9265

    4198 - HE-L1 1.8614 P_left, waiting on P_right
    4199 - PB-L2 1.8614 waiting on P_right
    4200 - HE-L2 1.8614 waiting on P_right
    4201 junk, beam trip @ start
    4202 22085 PB-L3 1.8614/1.7962
    4203 22086 H2-L3 1.8614/1.7962
    4204 22087 DUM10 1.8614/1.7962
    4205 22088 C 1.8614/1.7962
    4206 22089 Fe 1.8614/1.7962

    4207 22090 HE-L1 1.7962 Both arms to setting #5
    4208 22091 PB-L2 1.7962
    4209 22092 PB-L2 1.7962 Repeat with higher PS factors
    4210 22093 HE-L2 1.7962
    4211 - PB-L3 1.7962 Start changing P_right
    4212 - H2-L3 1.7962
    4213 - DUM10 1.7962
    4214 - C 1.7962
    4215 - Fe 1.7962

    4216 coda crash
    4217 22094 Fe 1.67475 Setting #7 (skipped #6)
    - 22095 test run (post DAQ crash)
    4218 22096 C 1.67475
    4219 22097 DUM10 1.67475
    4220 22098 H2-L3 1.67475
    4221 22099 PB-L3 1.67475
    4222 22100 PB-L2 1.67475
    4223 22101 HE-L2 1.67475 Left Q1 crashed at end
    4224 22102 HE-L1 1.67475

    Done with production program here. Moving on to position scan on loop 3 lead target:

    Left# Right# x_A x_B T1rate T3rate I
    4225 - -2.016 -1.998 - 4.9e3 5.1uA
    4226 - -0.970 -0.991 - 4.6e3 5.1uA
    4227 - 0.028 -0.055 - 4.5e3 5.0uA
    4228 - 1.031 0.965 - 4.4e3 4.9uA
    4229 - 2.038 1.998 - 4.3e3 4.9uA
    4230 - 3.018 2.932 - 4.4e3 5.0uA
    4231 - 3.989 3.965 - 2.7e4 5.0uA
    very short run - beam may have been hitting cell.

    (First runs are left arm only while we wait for the HRS-R dipole to settle)





    Just after run 4217, lots of things froze up: DAQ/HALOG/etc.... Same symptoms as last night, except that everything came back on it's own after 20-30 min (and in fact, the BTA window is operating normally again). Continued with the program...