Difference between revisions of "Moller Polarimeter/A1n/d2n"
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This is the "Cliff notes section on Moller polarimetry runs during the Polarized Helium-3 Running. | This is the "Cliff notes section on Moller polarimetry runs during the Polarized Helium-3 Running. | ||
| − | <b> | + | <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> |
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| + | <b>December 19, 2019</b> | ||
==Table of good Moller runs== | ==Table of good Moller runs== | ||
Revision as of 09:49, 22 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 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]
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 HW RHWP Energy(MeV) Comment 11/30/11 1266 87.07 0.51 0 0 6479 1157.17 Production IHWP IN 1267 87.44 0.71 0 0 6479 1157.25 Production IHWP IN 1268 87.60 0.68 0 0 6479 1157.28 Production IHWP IN 1269 -87.33 0.67 0 1 350 1157.03 Production IHWP OUT 1270 -88.14 0.70 0 1 350 1157.18 Production IHWP OUT 1271 -87.63 0.70 0 1 350 1157.17 Production IHWP OUT
