Moller Polarimeter/A1n/d2n

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]

January 18, 2020 Before this measurement, timed in randoms so that right arm comes exactly 16 ns after left. [4]. 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. [5] Settings: [6] Summary: [7] Measurements: [8] BPMs: [9]

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