Difference between revisions of "Moller Polarimeter/A1n/d2n"
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<b>January 18, 2020</b> Before this measurement, timed in randoms so that right arm comes exactly 16 ns after left. [https://logbooks.jlab.org/entry/3764920]. During measurement, replaced 8 ns with 6 ns delay on left arm. Reduced left/right HV by 25 V (1245/1225). Ran with collimator 5 in - this reduced backgrounds a little. Q2/Q3 current changed to 1284.604 A. Bleedthrough check, ~ 10 nA. [https://logbooks.jlab.org/entry/3766408] Settings: [https://logbooks.jlab.org/entry/3766400] Summary: [https://logbooks.jlab.org/entry/3766402] Measurements: [https://logbooks.jlab.org/entry/3766434] BPMs: [https://logbooks.jlab.org/entry/3766441]<br> | <b>January 18, 2020</b> Before this measurement, timed in randoms so that right arm comes exactly 16 ns after left. [https://logbooks.jlab.org/entry/3764920]. During measurement, replaced 8 ns with 6 ns delay on left arm. Reduced left/right HV by 25 V (1245/1225). Ran with collimator 5 in - this reduced backgrounds a little. Q2/Q3 current changed to 1284.604 A. Bleedthrough check, ~ 10 nA. [https://logbooks.jlab.org/entry/3766408] Settings: [https://logbooks.jlab.org/entry/3766400] Summary: [https://logbooks.jlab.org/entry/3766402] Measurements: [https://logbooks.jlab.org/entry/3766434] BPMs: [https://logbooks.jlab.org/entry/3766441]<br> | ||
| − | < | + | <b>January 27, 2020</b> Moller tune check and collimator settings[https://logbooks.jlab.org/entry/3772104].The beam current was 1 uA and IHWP IN. During the first three runs (1385-1387), Hall A was changing their slit and attenuator. During the last 3 runs(1388-1390),had the same slit settings.Summary[https://logbooks.jlab.org/entry/3771982], Moller measurement results[https://logbooks.jlab.org/entry/3772152] , BPMs:[https://logbooks.jlab.org/entry/3772135] |
| − | < | + | <b>February 3, 2020</b> Spin Dance[https://logbooks.jlab.org/entry/3776671] |
| − | < | + | <b>February 12, 2020</b> [https://logbooks.jlab.org/entry/3782578] |
| − | < | + | <b>February 19, 2020</b> [https://logbooks.jlab.org/entry/3782578] |
| − | < | + | <b>February 27, 2020</b> [https://logbooks.jlab.org/entry/3782578] |
| − | < | + | <b>March 6th, 2020</b> [https://logbooks.jlab.org/entry/3782578] |
</b>March 12th, 2020</b> [https://logbooks.jlab.org/entry/3782578] | </b>March 12th, 2020</b> [https://logbooks.jlab.org/entry/3782578] | ||
Revision as of 13:58, 12 August 2020
Moller measurement summaries for A1n/d2n
This is the "Cliff notes section on Moller polarimetry runs during the Polarized Helium-3 Running.
December 9, 2019 December 19, 2019
January 18, 2020 Before this measurement, timed in randoms so that right arm comes exactly 16 ns after left. [1]. During measurement, replaced 8 ns with 6 ns delay on left arm. Reduced left/right HV by 25 V (1245/1225). Ran with collimator 5 in - this reduced backgrounds a little. Q2/Q3 current changed to 1284.604 A. Bleedthrough check, ~ 10 nA. [2] Settings: [3] Summary: [4] Measurements: [5] BPMs: [6]
January 27, 2020 Moller tune check and collimator settings[7].The beam current was 1 uA and IHWP IN. During the first three runs (1385-1387), Hall A was changing their slit and attenuator. During the last 3 runs(1388-1390),had the same slit settings.Summary[8], Moller measurement results[9] , BPMs:[10]
February 3, 2020 Spin Dance[11]
February 12, 2020 [12]
February 19, 2020 [13]
February 27, 2020 [14]
March 6th, 2020 [15]
March 12th, 2020 [16]
August 3rd, 2020 [17]
August 12th, 2020 [18]
Table of good Moller runs
This will be a log of all "good" Moller runs; ie, our "production" runs. It will include some detailed notes when necessary.
Date Run Pol (%) Error (%) Hwien Flip Energy(MeV) Comment 01/18/20 1366 -29.64 right 10.3857 Detector Tune Check 1368 86.31 0.98 -29.64 right 10.3857 Production IHWP OUT 1369 85.23 0.98 -29.64 right 10.3857 Production IHWP OUT 1370 86.53 1.49 -29.64 right 10.3857 Production IHWP OUT 1371 -86.05 0.90 -29.64 right 10.3857 Production IHWP IN 1372 -85.69 0.99 -29.64 right 10.3857 Production IHWP IN 1374 -86.44 1.06 -29.64 right 10.3857 Production IHWP IN 1375 -84.96 1.79 -29.64 right 10.3857 Production IHWP IN 1376 -83.91 1.55 -29.64 right 10.3857 Production IHWP IN 1377 -85.18 1.60 -29.64 right 10.3857 Production IHWP IN 1378 -85.74 0.96 -29.64 right 10.3857 Production IHWP IN
