Difference between revisions of "G2p 1157 25T"

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|[http://userweb.jlab.org/~rbziel/wikiplots/1157_25T_L/1157_25T_935_yield_mat11.gif 935] || 11||  0.63%  ||  18 || style="text-align:left;" | || style="text-align:left;" |  
 
|[http://userweb.jlab.org/~rbziel/wikiplots/1157_25T_L/1157_25T_935_yield_mat11.gif 935] || 11||  0.63%  ||  18 || style="text-align:left;" | || style="text-align:left;" |  
 
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|[http://userweb.jlab.org/~rbziel/wikiplots/1157_25T_L/1157_25T_898_yield_mat11.gif 898] || 11||  2.5%  ||  22 || style="text-align:left;" |Last two runs contribute most to spread. It's also where beam x and beam y are most different from rest of values. In MySQL there are no error bars on BPM info. || style="text-align:left;" |  
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|[http://userweb.jlab.org/~rbziel/wikiplots/1157_25T_L/1157_25T_898_yield_mat11.gif 898] || 11||  2.5%  ||  22 || style="text-align:left;" |Last two runs contribute most to spread. It's also where beam x and beam y are most different from rest of values. The shift is ~0.5mm for both X/Y for those two runs.In MySQL there are no error bars on BPM info. || style="text-align:left;" |  
 
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|[http://userweb.jlab.org/~rbziel/wikiplots/1157_25T_L/1157_25T_898_yield_mat14.gif 898] || 14||  0.01%  ||  2 || style="text-align:left;" | || style="text-align:left;" |  
 
|[http://userweb.jlab.org/~rbziel/wikiplots/1157_25T_L/1157_25T_898_yield_mat14.gif 898] || 14||  0.01%  ||  2 || style="text-align:left;" | || style="text-align:left;" |  

Revision as of 15:44, 22 January 2015

Left Arm
HRS Momentum (MeV) Material # Spread (%) Runs Comments Conclusion
1168 12 - 1
1151 12 - 1
1113 12 - 1
1082 14 - 1
1081 12 2.2% 8 Shift worker noticed 3rd arm rate was high for 5034-5039. Didn't see anything on Spot_3 but moved beam position down by 0.5 mm to get more normal 3rd arm rates for runs 5044-5045
1017 11 6.1% 27 For first set of runs where yield is drifting larger, target y is drifting more and more negative. Starts at -7.7mm and drifts to -10.1mm. There is potentially beam scraping in first set of runs where beam drifts. 3rd arm rate increased but not seen in HRS spot++. Decreased raster size to 1.5cm for first set of runs as well. Beam then went down and after tuning the raster size was set to an oval. First run is 4818. HWP removed prior to 4832 and then beam became unstable. Run 4835 has no track efficiency data in MySQL
1017 14 - 1
1006 12 0.29% 7
1006 11 0.39% 11
956 11 1.1% 20
956 14 0.04% 2
935 11 0.63% 18
898 11 2.5% 22 Last two runs contribute most to spread. It's also where beam x and beam y are most different from rest of values. The shift is ~0.5mm for both X/Y for those two runs.In MySQL there are no error bars on BPM info.
898 14 0.01% 2
870 11 0.9% 12 5101 had no L.rec.dp info so used L.gold.dp instead, 5095, 5101 has no BPM info in MySQL
870 13 0.4% 19
870 14 2.8% 3 Take one run and then come back much later and take two more. The second two are in disagreement with the first run.
844 11 2.7% 20
844 14 0.08% 2
809 14 3.8% 20 Took 18 runs and then came back much later and took 2 more, the two additional runs contribute to the large spread.
794 11 2.2% 16
794 14 0.09% 2
752 14 5.2% 16 Took 14 runs and then came back much later and took 2 more, the two additional runs contribute to the large spread.
752 13 0.6% 14
746 12 2.1% 9
746 14 0.07% 2
701 12 1.8% 10
700 13 0.8% 24
700 14 0.17% 2
659 12 2.1% 11
651 14 0.4% 8
619 12 1.9% 7
582 12 3.8% 9 First run is about a 1mm lower in target y and seems to contribute most to spread
563 14 0.23% 2
547 12 1.7% 8
523 14 0.07% 2

More detailed 1.157GeV 2.5T Transverse left arm plots are available here