Difference between revisions of "G2p 1157 25T"
From Hall A Wiki
| Line 18: | Line 18: | ||
|[http://userweb.jlab.org/~rbziel/wikiplots/1157_25T_L/1157_25T_1081_yield_mat12.gif 1081] || 12|| 2.2% || 8 || style="text-align:left;" |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 || style="text-align:left;" | | |[http://userweb.jlab.org/~rbziel/wikiplots/1157_25T_L/1157_25T_1081_yield_mat12.gif 1081] || 12|| 2.2% || 8 || style="text-align:left;" |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 || style="text-align:left;" | | ||
|- | |- | ||
| − | |[http://userweb.jlab.org/~rbziel/wikiplots/1157_25T_L/1157_25T_1017_yield_mat11.gif 1017] || 11|| 6.1% || 27 || style="text-align:left;" |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++. Run 4835 has no track efficiency data in MySQL || style="text-align:left;" | | + | |[http://userweb.jlab.org/~rbziel/wikiplots/1157_25T_L/1157_25T_1017_yield_mat11.gif 1017] || 11|| 6.1% || 27 || style="text-align:left;" |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. Run 4835 has no track efficiency data in MySQL || style="text-align:left;" | |
|- | |- | ||
|[http://userweb.jlab.org/~rbziel/wikiplots/1157_25T_L/1157_25T_1017_yield2_mat14.gif 1017] || 14|| - || 1 || style="text-align:left;" | || style="text-align:left;" | | |[http://userweb.jlab.org/~rbziel/wikiplots/1157_25T_L/1157_25T_1017_yield2_mat14.gif 1017] || 14|| - || 1 || style="text-align:left;" | || style="text-align:left;" | | ||
Revision as of 13:10, 22 January 2015
| 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. 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. 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
