Difference between revisions of "Moller Polarimeter/A1n/d2n"
| Line 3: | Line 3: | ||
| − | '''January 27, 2020''' 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] | + | '''January 27, 2020''' 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>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> | ||
Revision as of 10:45, 30 January 2020
Moller measurement summaries for A1n/d2n
This is the "Cliff notes section on Moller polarimetry runs during the Polarized Helium-3 Running.
January 27, 2020 Moller tune check and collimator settings[1].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[2], Moller measurement results[3] , BPMs:[4]
January 18, 2020 Before this measurement, timed in randoms so that right arm comes exactly 16 ns after left. [5]. 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. [6] Settings: [7] Summary: [8] Measurements: [9] BPMs: [10]
December 19, 2019
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 1378 -85.76 0.96 -29.64 right 10.3857 Production IHWP OUT
