Difference between revisions of "Moller Polarimeter/A1n/d2n"

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Date   Run Pol (%)  Error (%) Hwien Flip      Energy(MeV)    Comment
 
Date   Run Pol (%)  Error (%) Hwien Flip      Energy(MeV)    Comment
 
01/18/20
 
01/18/20
  1378 -85.76   0.96         -29.64 right      10.3857   Production IHWP OUT
+
  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

Revision as of 14:08, 12 February 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
	  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