Moller Polarimeter/Qweak
From PolWiki
General Information
This is the spot for all things moller polarimetry. Information on how to take moller measurements, spin dance and polarimetry results, and system specs will eventually be put here. This page is currently under construction, and will be updated frequently in the upcoming weeks.
Preliminary results
Measurements for 2011
Data points can be found in /group/qweak/gaskelld/kumac/qweak_by_day_2011.dat
Last updated May 13, 2011
Measurements for 2010
Note: Measurement on "Day 39" low due to likely hardware issue.
Moller info for Qweak
- The Qweak Moller "how to" is officially up and ready for viewing. (version 1, updated jan. 26, 2011): Qweak Moller "How-To"
- The following is a plot showing good tune of the apparatus. It was taken from run 700, hallc:p ~ 1159 MeV, with a 1um target. (Jan. 30, 2011)
Moller measurement summaries
This will be a sort of "Cliff Notes"section, that will summarize each test and link to the hclog and elog entries.
May 12, 2011 Final measurement before 6 month down. hclog
May 9, 2011 Normal measurement, ~86-87%. hclog quad3 fields
May 8, 2011 BCM calibration only (no measurement). hclog
May 6, 2011 Systematic studies - beam position on target. hclog quad3 fields
May 4, 2011 Standard measurement - major problems with missing helicity gates, tune problems. Quad issues. hclog results hclog quad problems elog
May 2, 2011 Measurement had low rates (~11kHz), and collimators IOC died and needed re-booting. hclog
Apr. 29, 2011 Measurement included a spot change. hclog
Apr. 27, 2011 Normal measurement, a few beam trips. Leakage check. hclog
Apr. 25, 2011 Hall A boiling studies. Many missed helicity gates. hclog elog
Apr. 22, 2011 Beam position on target moved after IWHP to OUT changed. Most of that IHWP setting is suspect. hclog elog
Apr. 15, 2011 Slit studies and regular measurement. hc-log summary hc-log plots e-log summary
Apr. 13, 2011 Slit studies and regular measurement. The quad tuning was painful - mcc re-cycled the quads 3-4x. hclog-results hclog-slit test e-log summary
Apr. 11, 2011 Regular measurement - polarization increased from the 11th, but not quite noraml. (~86%) hclog e-log summary
Apr. 8, 2011 Changed MPS to 100us. Polarization abnormally low. (~85%) The MPS change appeared to not be the cause. hclog elog
Apr. 6, 2011 Regular measurement. Measurement 1% better than from same spot on the 4th. hclog elog
Apr. 4, 2011 Shifted beam left by 0.5mm to see effect of polarization. hclog elog
Mar. 31, 2011 Study of charge asymmetry on polarization. Used "old" method of just changing the PITA voltages. Some difference, but inconclusive. hclog elog
Mar. 18, 2011 Study of charge asymmetry effect on polarization. hclog elog
Feb. 24, 2011 Regular measurement. Noticed bug in "calc_bpol_byquartet". hclog elog
Feb. 22, 2011 Final run disrupted by cryo events. hclog elog
Feb. 19, 2011 Results outside of statistical error. Tune and rates a little odd at first. After cycling Q3 again, rate=17 kHz/uA. hclog
Feb. 10, 2011 Spin dance. Position of 3c12 visibly wandered. hclog summary hclog pol. measurement elog
Feb. 8, 2011 Measurement of vertical polarization (spin rotator off) ~-0.60. hclog
Feb. 7, 2011 Checked HV - looked good, and then measurement. Several beam trips. hclog elog
Feb. 4, 2011 Measurement, good beam. hclog summary (no plots) elog (with plots)
Jan. 30, 2011 Checked HV, rates, and re-did a collimator scan. hclog hclog plots elog (also with plots) collimator scan (with spreadsheet)
Jan. 21, 2011 Straightforward measurement. Good backgrounds. hclog
Dec. 14, 2010 Background studies. Tweaked HV, looked at collimator 5. hclog
Dec. 10,2010 Verified timing for the main coincidences and accidentals. hclog
Dec. 9, 2010 Scaler coincidence and accidental measurements elog
Dec. 6, 2010
- Rate and current dependence studies. hclog elog
- Quad tune test. hclog summary
- Rate and current dependence studies. hclog elog
Dec. 4, 2010 Moller solenoid field scan for foil misalignment. Solenoid field at 3.75 self inconsistent. hclog elog
Nov. 23, 2010 Spin dance. hclog summary elog (duplicate)
Nov. 14, 2010 Commissioning! Gain matched calorimeters and scintillator HV. Optimized quad tunes, some collimator studies, and made some measurements. hclog
Also: an hclog note on moller backgrounds sensitive to beam position near raster. (Dec. 4, 2010)
Table of good Moller runs
The following are runs made from straightforward moller measurement runs, not spin dances. Note, missing data can/will be added over time. The Nov. 14, 2010 commissioning run is NOT included. (we were messing with camac pre-scales, et cetera.)
Date Run Polarization (%) HW Plate Wien (deg.) HALLC:p(MeV) QE(%) Foil (um) Current (uA) Comments
1/21/11 686 -90.46 +/- 0.52 0 (IN) 1159.82 0.32 1 1
687 -91.36 +/- 0.69 0 (IN) 1159.82 0.32 1 1.5
688 -90.60 +/- 0.67 0 (IN) 1159.82 0.32 1 2.0
689 -91.64 +/- 0.99 0 (IN) 1159.82 0.32 1 1.5
691 -91.28 +/- 1.43 0 (IN) 1159.82 0.32 1 0.5
1/30/11 702 -90.07 +- 0.63 1159.76 0.6899 1 0.8 New HV L 1510V, R 1535V
703 -88.75 +- 1.31 1159.76 0.6899 1 0.8 New HV L 1510V, R 1535V
704 -90.48 +- 0.71 1159.76 0.6899 1 0.8 New HV L 1510V, R 1535V
705 -89.84 +- 1.15 1159.76 0.6899 1 0.8 Old HV L 1480V, R 1520V tripped at end
706 -89.31 +- 1.09 1159.76 0.6899 1 0.8 Old HV L 1480V, R 1520V tripped at end
708 -89.37 +- 0.78 1159.76 0.6899 1 0.8 Old HV L 1480V, R 1520V
709 -89.92 +- 1.50 1159.76 0.6899 1 0.8 HV L 1530V, R 1555V
710 -88.15 +- 0.72 1159.76 0.6899 1 0.8 HV L 1610V, R 1655V
711 -89.77 +- 0.72 1159.76 0.6899 1 0.8 HV L 1610V, R 1655V
712 -88.08 +- 0.72 1159.76 0.6899 1 0.8 HV L 1610V, R 1655V
2/4/11 721 -88.37 +- 0.70 0 (IN) 1159.76 0.637 1 0.96
722 -88.94 +- 0.73 0 (IN) 1159.76 0.637 1 0.96
723 -89.14 +- 0.73 0 (IN) 1159.76 0.637 1 0.96
724 89.20 +- 0.70 1 (OUT) 1159.76 0.637 1 0.96
725 89.06 +- 0.73 1 (OUT) 1159.76 0.637 1 0.96
726 88.97 +- 0.73 1 (OUT) 1159.76 0.637 1 0.96
2/7/11 737 89.09 +- 0.70 1 (OUT) 1159.6 0.4192 1 1
738 88.28 +- 0.73 1 (OUT) 1159.6 0.4192 1 1
739 88.81 +- 0.67 1 (OUT) 1159.6 0.4192 1 1
740 -86.99 +- 0.68 0 (IN) 1159.6 0.4192 1 1
741 -87.31 +- 0.7 0 (IN) 1159.6 0.4192 1 1
742 -88.52 +- 0.73 0 (IN) 1159.6 0.4192 1 1 beam tripped
743 -87.52 +- 0.73 0 (IN) 1159.6 0.4192 1 1
2/8/11 747 88.46 +- 0.73 1 (OUT) 1 charge asymmetry -128 ppm
748 89.49 +- 0.73 1 (OUT) 1 charge asymmetry -153 ppm
749 87.47 +- 0.74 1 (OUT) 1 charge asymmetry 94 ppm
750 88.39 +- 0.73 1 (OUT) 1 charge asymmetry -195 ppm
751 -87.63 +- 0.65 0 (IN) 1 charge asymmetry 1305 ppm
752 -87.99 +- 0.81 0 (IN) 1 charge asymmetry -1734 ppm
753 -88.57 +- 0.69 0 (IN) 1 charge asymmetry -300 ppm
754 -88.10 +- 0.72 0 (IN) 1 charge asymmetry -257 ppm
755 -87.63 +- 1.12 0 (IN) 1 charge asymmetry -234 ppm
2/10/11 791 -89.00 +- 0.73 1 (OUT) -62.40 1159.60 0.2868 1 3c12 stable
792 -89.76 +- 0.82 1 (OUT) -62.40 1159.60 0.2868 1 3c12 stable
793 -88.66 +- 0.73 1 (OUT) -62.40 1159.60 0.2868 1 3c12 stable
794 88.92 +- 0.73 0 (IN) -62.40 1159.60 0.2868 1 large A_Q
795 90.77 +- 2.54 0 (IN) -62.40 1159.60 0.2868 1 large A_Q
796 88.82 +- 0.73 0 (IN) -62.40 1159.60 0.2868 1
797 87.87 +- 0.73 0 (IN) -62.40 1159.60 0.2868 1
798 89.93 +- 0.73 0 (IN) -62.40 1159.60 0.2868 1
2/14/11 803 -87/52 +- 0.69 1 (OUT) -62.39 1159.61 0.1527 1
804 -89.58 +- 0.72 1 (OUT) -62.39 1159.61 0.1527 1
805 -89.74 +- 0.77 1 (OUT) -62.39 1159.61 0.1527 1 beam trip
806 -89.15 +- 0.72 1 (OUT) -62.39 1159.61 0.1527 1
815 89.66 +- 0.73 0 (IN) -62.39 1159.61 0.1527 1
816 88.94 +- 0.67 0 (IN) -62.39 1159.61 0.1527 1
817 89.00 +- 0.70 0 (IN) -62.39 1159.61 0.1527 1
2/19/11 826 -89.24 +- 0.72 1 (OUT) -62.39 1159.62 1 tune funny prior to this run, recylced quads
827 -88.76 +- 0.73 1 (OUT) -62.39 1159.62 1
828 -88.78 +- 0.71 1 (OUT) -62.39 1159.62 1
830 90.73 +- 1.40 0 (IN) -62.39 1159.62 1 large charge asymmetry
831 88.64 +- 0.99 0 (IN) -62.39 1159.62 1
832 89.87 +- 0.72 0 (IN) -62.39 1159.62 1
834 89.28 +- 0.72 0 (IN) -62.39 1159.62 1
835 91.91 +- 0.69 0 (IN) -62.39 1159.62 1
836 89.75 +- 1.35 0 (IN) -62.39 1159.62 1
2/22/11 842 -89.44 +- 0.73 1 (OUT) -62.39 1159.73 0.3480 1 Prescales at infinity and Q3=131A
843 -89.61 +- 0.71 1 (OUT) -62.39 1159.73 0.3480 1
844 -89.24 +- 0.71 1 (OUT) -62.39 1159.73 0.3480 1
845 -88.92 +- 0.73 1 (OUT) -62.39 1159.73 0.3480 1
847 89.93 +- 0.73 0 (IN) -62.39 1159.73 0.3480 1
848 88.58 +- 0.73 0 (IN) -62.39 1159.73 0.3480 1 Moller ended early due to 2K cold box trip
2/24/11 868 87.99 +- 0.72 1 (OUT) -62.39 1159.6 0.2545 1 0.8 slit controlled (25.7)
869 87.94 +- 0.79 1 (OUT) -62.39 1159.6 0.2545 1 0.8 ~4e6e events, slit controlled (25.7)
870 88.62 +- 0.72 1 (OUT) -62.39 1159.6 0.2545 1 0.8 slit controlled
871 -89.47 +- 0.73 0 (IN) -62.39 1159.6 0.2545 1 0.8 slit controlled
872 -88.27 +- 0.96 0 (IN) -62.39 1159.6 0.2545 1 0.8 ~2.9e6 events, slit controlled (25.7)
873 -90.62 +- 0.83 0 (IN) -62.39 1159.6 0.2545 1 0.8 ~3.9e6 events, slit controlled (25.7)
874 -89.42 +- 0.74 0 (IN) -62.39 1159.6 0.2545 1 0.8 ~4.8e6 events, slit controlled (25.7)
3/18/11 878 -89.42 +- 0.71 0 (IN) -62.39 1159.63 1 1.0 slit wide open
879 -90.00 +- 0.71 0 (IN) -62.39 1159.63 1 1.0 slit wide open
880 -89.40 +- 0.69 0 (IN) -62.39 1159.63 1 1.0 slit wide open
881 -90.94 +- 1.46 0 (IN) -62.39 1159.63 1 1.0 slit wide open
882 89.48 +- 0.66 1 (OUT) -62.39 1159.63 1 1.0 A_Q ~ 600 ppm, slit wide open
883 89.46 +- 0.68 1 (OUT) -62.39 1159.63 1 1.0 A_Q ~ 600 ppm, slit wide open
884 89.05 +- 0.71 1 (OUT) -62.39 1159.63 1 1.0 A_Q ~ 600 ppm, slit wide open
886 90.52 +- 0.60 1 (OUT) -62.39 1159.63 1 1.0 slit wide open
887 89.93 +- 0.67 1 (OUT) -62.39 1159.63 1 1.0 slit wide open
888 89.76 +- 0.69 1 (OUT) -62.39 1159.63 1 1.0 slit wide open
3/31/11 892 90.28 +- 0.61 1 (OUT) -62.39 1159.57 1 1.0 Beam on target off. Adjusted after run. Aq ~ 100ppm, slit wide open
893 88.87 +- 0.73 1 (OUT) -62.39 1159.57 1 1.0 Aq ~ 100ppm, slit wide open
894 90.41 +- 0.71 1 (OUT) -62.39 1159.57 1 1.0 Aq ~ 100ppm , slit wide open
895 88.31 +- 0.73 1 (OUT) -62.39 1159.57 1 1.0 Aq ~ 100ppm, slit wide open
896 89.01 +- 0.73 1 (OUT) -62.39 1159.57 1 1.0 Aq ~ 100ppm, slit wide open
897 -88.94 +- 0.74 0 (IN) -62.39 1159.57 1 1.0 No changes - PC or RHWP Aq ~ -800ppm, slit wide open
898 -88.55 +- 0.74 0 (IN) -62.39 1159.57 1 1.0 No changes - PC or RHWP Aq ~ -800ppm, slit wide open
899 -89.37 +- 0.72 0 (IN) -62.39 1159.57 1 1.0 No changes - PC or RHWP Aq ~ -800ppm, slit wide open
901 -87.79 +- 0.70 0 (IN) -62.39 1159.57 1 1.0 No changes - PC or RHWP Aq ~ -800ppm, slit wide open
904 -88.44 +- 1.67 0 (IN) -62.39 1159.57 1 1.0 Aq~1000ppm. PC [+] 42990, PC [-] 41210, slit wide open
905 -87.43 +- 1.07 0 (IN) -62.39 1159.57 1 1.0 Aq~-700ppm. PC [+] 43388, PC [-] 40811, slit wide open
906 -89.86 +- 0.73 0 (IN) -62.39 1159.57 1 1.0 Aq~-300ppm. PC [+] 43588, PC [-] 40611, slit wide open
907 -89.79 +- 0.74 0 (IN) -62.39 1159.57 1 1.0 Aq~-300ppm, slit wide open
908 -88.39 +- 0.74 0 (IN) -62.39 1159.57 1 1.0 Aq~-300ppm, slit wide open
909 -89.76 +- 0.74 0 (IN) -62.39 1159.57 1 1.0 Aq~-300ppm, slit wide open
4/4/11 914 -88.32 +- 0.73 0 (IN) -62.39 1159.55 0.5188 1 1.0 Aq ~ 11 ppm, slit wide open
915 -88.04 +- 0.72 0 (IN) -62.39 1159.55 0.5188 1 1.0 A_q=3ppm, slit wide open
916 -88.77 +- 0.66 0 (IN) -62.39 1159.55 0.5188 1 1.0 A_q=5ppm, slit wide open
917 88.11 +- 0.71 1 (OUT) -62.39 1159.55 0.5188 1 1.0 A_q=-57ppm , slit wide open
918 90.14 +- 0.70 1 (OUT) -62.39 1159.55 0.5188 1 1.0 A_q=-51ppm , slit wide open
919 88.06 +- 0.71 1 (OUT) -62.39 1159.55 0.5188 1 1.0 A_q=-58ppm, slit wide open
920 88.61 +- 1.32 1 (OUT) -62.39 1159.55 0.5188 1 1.0 A_q=-62ppm, slit wide open
923 89.45 +- 0.70 1 (OUT) -62.39 1159.55 0.5188 1 1.0 xpos =-0.5, slit wide open
924 88.56 +- 0.72 1 (OUT) -62.39 1159.55 0.5188 1 1.0 xpos =-0.5, slit wide open
925 89.42 +- 0.67 1 (OUT) -62.39 1159.55 0.5188 1 1.0 xpos =-0.5, slit wide open
4/6/11 934 89.87 +- 0.73 0 (IN) -62.39 1159.6 0.3387 1 0.8 slit wide open
935 90.76 +- 0.73 0 (IN) -62.39 1159.6 0.3387 1 0.8 slit wide open
936 89.11 +- 0.74 0 (IN) -62.39 1159.6 0.3387 1 0.8 slit wide open
937 -89.57 +- 0.73 1 (OUT) -62.39 1159.6 0.3387 1 0.8 slit wide open
938 -89.50 +- 0.68 1 (OUT) -62.39 1159.6 0.3387 1 0.8 slit wide open
939 -88.33 +- 0.73 1 (OUT) -62.39 1159.6 0.3387 1 0.8 slit wide open
4/8/11 946 -85.72 +- 0.70 1 (OUT) -62.39 1159.37 1.3449 1 1.0 A_q = 27.ppm, MPS time set to 100us, slit wide open
947 -84.74 +- 0.71 1 (OUT) -62.39 1159.37 1.3449 1 1.0 A_q = 11.ppm. MPS time set to 100us, slit wide open
948 -85.21 +- 0.73 1 (OUT) -62.39 1159.37 1.3449 1 1.0 A_q = 38.ppm. MPS time set to 100us, slit wide open
950 -84.08 +- 0.73 1 (OUT) -62.39 1159.37 1.3449 1 1.0 A_q = 33.ppm. MPS time set to 70us, slit wide open
951 -86.50 +- 0.73 1 (OUT) -62.39 1159.37 1.3449 1 1.0 A_q = 48.ppm. Beam trip. MPS time set to 70us, slit wide open
952 -83.41 +- 0.72 1 (OUT) -62.39 1159.37 1.3449 1 1.0 A_q = 6.ppm. MPS time set to 70us, slit wide open
953 84.23 +- 0.73 0 (IN) -62.39 1159.37 1.3449 1 1.0 A_q = 417.ppm, slit wide open
955 85.24 +- 0.72 0 (IN) -62.39 1159.37 1.3449 1 1.0 A_q = 394.ppm, slit wide open
957 84.11 +- 0.73 0 (IN) -62.39 1159.37 1.3449 1 1.0 A_q = 433.ppm, slit wide open
4/11/11 962 85.33 +- 1.41 0 (IN) 1.16 A_q = -32ppm, slit wide open
963 87.06 +- 0.73 0 (IN) 1.08 A_q = 21.ppm, slit wide open
964 86.04 +- 1.63 0 (IN) 1.16 A_q = -18ppm, slit wide open
965 -86.46 +- 0.73 1 (OUT) 1.19 A_q = 121.ppm, slit wide open
966 -87.58 +- 0.71 1 (OUT) 1.19 A_q = 37.ppm, slit wide open
967 -86.32 +- 0.74 1 (OUT) 1.19 A_q = 72.ppm, slit wide open
4/13/11 978 -88.52 +- 0.83 1 (OUT) -62.39 1159.56 0.6052 1 1.0 A_q = 154.ppm, slit wide open
979 -86.88 +- 0.73 1 (OUT) -62.39 1159.56 0.6052 1 1.0 A_q = 98.ppm, slit wide open
980 -85.94 +- 0.73 1 (OUT) -62.39 1159.56 0.6052 1 1.0 A_q = 133.ppm, slit wide open
981 -87.60 +- 0.73 1 (OUT) -62.39 1159.56 0.6052 1 1.0 A_q = 128.ppm, slit wide open
982 86.63 +- 0.75 0 (IN) -62.39 1159.56 0.6052 1 1.0 A_q = 44.ppm, slit wide open
983 87.33 +- 0.73 0 (IN) -62.39 1159.56 0.6052 1 1.0 A_q = 5.ppm, slit wide open
984 87.79 +- 0.73 0 (IN) -62.39 1159.56 0.6052 1 1.0 A_q = -7.ppm, slit wide open
986 84.85 +- 1.09 0 (IN) -62.39 1159.56 0.6052 1 1.0 Hall A beam issues, 20uA off photo-cathode
988 86.00 +- 0.74 0 (IN) -62.39 1159.56 0.6052 1 1.0 A_q = 114.ppm, 20uA off photo-cathode, slit controlled (29.5)
990 86.67 +- 0.73 0 (IN) -62.39 1159.56 0.6052 1 1.0 A_q = 78.ppm, 20uA off photo-cathode, slit controlled
991 86.05 +- 0.73 0 (IN) -62.39 1159.56 0.6052 1 1.0 A_q = 218.ppm, 20uA off photo-cathode, slit controlled
992 88.34 +- 0.73 0 (IN) -62.39 1159.56 0.6052 1 1.0 A_q = 71.ppm, 20uA off photo-cathode, slit controlled
993 87.87 +- 1.17 0 (IN) -62.39 1159.56 0.6052 1 1.0 A_q = -9.ppm, 20uA off photo-cathode, slit controlled
4/15/11 999 86.17 +- 0.73 1 (OUT) -62.39 1160.24 0.4297 1 1.0 A_q = 739.ppm, 20uA off photo-cathode, slit controlled (20.8)
1000 85.85 +- 0.70 1 (OUT) -62.39 1160.24 0.4297 1 1.0 A_q = 580.ppm, 20uA off photo-cathode, slit controlled
1001 87.32 +- 0.70 1 (OUT) -62.39 1160.24 0.4297 1 1.0 A_q = 811.ppm, 20uA off photo-cathode, slit controlled
1003 87.47 +- 1.18 1 (OUT) -62.39 1160.24 0.4297 1 1.0 A_q = 485.ppm, 20uA off photo-cathode, slit controlled
1005 86.15 +- 2.38 1 (OUT) -62.39 1160.24 0.4297 1 1.0 Tripped around 5e5 events, A_q = 319.ppm, slit wide open
1006 88.42 +- 1.22 1 (OUT) -62.39 1160.24 0.4297 1 1.0 Tripped around 51.8e6 events, A_q = 260.ppm, slit wide open
1007 86.61 +- 0.73 1 (OUT) -62.39 1160.24 0.4297 1 1.0 A_q = 278.ppm, slit wide open
1008 87.13 +- 0.65 1 (OUT) -62.39 1160.24 0.4297 1 1.0 A_q = 233.ppm, slit wide open
1009 -88.44 +- 0.73 0 (IN) -62.39 1160.24 0.4297 1 1.0 A_q = 27.ppm, slit wide open
1010 -88.92 +- 0.73 0 (IN) -62.39 1160.24 0.4297 1 1.0 A_q = 27.ppm, slit wide open
1012 -88.04 +- 0.73 0 (IN) -62.39 1160.24 0.4297 1 1.0 A_q = 52.ppm, slit wide open
4/22/11 1018 -86.26 +- 0.72 0 (IN) -62.39 1159.61 0.7535 1 1.0 A_q = -959ppm, 20uA off photo-cathode, slit controlled (15.2)
1019 -86.23 +- 0.70 0 (IN) -62.39 1159.61 0.7535 1 1.0 A_q = -999ppm, 20uA off photo-cathode, slit controlled
1020 -86.21 +- 0.92 0 (IN) -62.39 1159.61 0.7535 1 1.0 A_q = -881ppm, 20uA off photo-cathode, slit controlled
1021 -86.89 +- 0.67 0 (IN) -62.39 1159.61 0.7535 1 1.0 A_q = -1015ppm, 20uA off photo-cathode, slit controlled
1022 86.09 +- 0.72 1 (OUT) -62.39 1159.61 0.7535 1 1.0 A_q = -434ppm, 20uA off photo-cathode, slit controlled
1023 86.70 +- 1.10 1 (OUT) -62.39 1159.61 0.7535 1 1.0 A_q = -763ppm, Beam tripped, Beam position unstable, 20uA off photo-cathode, slit controlled
1024 87.16 +- 0.73 1 (OUT) -62.39 1159.61 0.7535 1 1.0 A_q = -572ppm, Beam position unstable, 20uA off photo-cathode,
1025 84.98 +- 0.73 1 (OUT) -62.39 1159.61 0.7535 1 1.0 A_q = -753ppm, 20uA off photo-cathode,
1026 87.06 +- 0.75 1 (OUT) -62.39 1159.61 0.7535 1 1.0 A_q = -534ppm, 20uA off photo-cathode,
4/25/11 1030 87.26 +- 0.71 1 (OUT) -62.39 1159.79 0.2316 1 1.0 A_q = -488ppm, 20uA off photo-cathode, slit controlled (15.2)
1031 85.26 +- 0.76 1 (OUT) -62.39 1159.79 0.2316 1 1.0 A_q = -550ppm, 20uA off photo-cathode, slit controlled
1032 84.52 +- 0.72 1 (OUT) -62.39 1159.79 0.2316 1 1.2 A_q = -430ppm, 20uA off photo-cathode, slit controlled
1033 83.61 +- 1.25 1 (OUT) -62.39 1159.79 0.2316 1 1.4 A_q = -323ppm, 20uA off photo-cathode, slit controlled
1035 85.72 +- 0.95 1 (OUT) -62.39 1159.79 0.2316 1 1.0 A_q = -294ppm, Missed helicity errors. slit controlled
1036 86.37 +- 1.08 1 (OUT) -62.39 1159.79 0.2316 1 1.0 A_q = -583ppm, 20uA off photo-cathode, slit controlled
1037 -84.95 +- 0.72 0 (IN) -62.39 1159.79 0.2316 1 1.0 A_q = -1466ppm, 20uA off photo-cathode, slit controlled
1038 -86.37 +- 1.02 0 (IN) -62.39 1159.79 0.2316 1 1.0 A_q = -1287ppm, 20uA off photo-cathode, slit controlled
1039 -83.11 +- 1.24 0 (IN) -62.39 1159.79 0.2316 1 1.0 A_q = -1155ppm, 20uA off photo-cathode, slit controlled
1042 -84.09 +- 1.96 0 (IN) -62.39 1159.79 0.2316 1 0.6 A_q = -1709ppm, 20uA off photo-cathode, slit controlled
1043 -85.38 +- 0.74 0 (IN) -62.39 1159.79 0.2316 1 0.6 A_q =-1209ppm, 20uA off photo-cathode, slit controlled
4/27/11 1057 -85.78 +- 0.74 0 (IN) -62.39 1159.58 0.5158 1 1.0 A_q = -21ppm, Hall A @120uA,slit open
1058 -86.38 +- 0.75 0 (IN) -62.39 1159.58 0.5158 1 1.0 A_q = 0ppm, Hall A @120uA,slit open
1059 -85.91 +- 0.74 0 (IN) -62.39 1159.58 0.5158 1 1.0 A_q = -1538ppm, Hall A @120uA,slit controlled (16.5)
1060 -86.32 +- 0.76 0 (IN) -62.39 1159.58 0.5158 1 1.0 A_q = -861ppm, Hall A @120uA,slit controlled
1062 -86.32 +- 0.75 0 (IN) -62.39 1159.58 0.5158 1 1.0 A_q = -1044ppm, Hall A @120uA,slit controlled
1063 87.96 +- 0.76 1 (OUT) -62.39 1159.58 0.5158 1 1.0 A_q = -818ppm, Hall A @120uA,slit controlled
1064 87.27 +- 0.76 1 (OUT) -62.39 1159.58 0.5158 1 1.0 A_q = -663ppm, Hall A @120uA,slit controlled
1065 86.33 +- 0.89 1 (OUT) -62.39 1159.58 0.5158 1 1.0 A_q = -585ppm, Hall A @120uA,slit controlled
1066 85.94 +- 0.76 1 (OUT) -62.39 1159.58 0.5158 1 1.0 A_q = -534ppm, Hall A @120uA,slit controlled
1067 86.47 +- 0.75 1 (OUT) -62.39 1159.58 0.5158 1 1.0 A_q = -493ppm, Hall A @120uA,slit controlled
4/29/11 1072 -86.06 +- 0.74 1 (OUT) -62.39 1159.61 0.2741 1 1.0 A_q = -66.ppm, 20uA off photo-cathode, slit controlled (17.5)
1073 -85.44 +- 0.71 1 (OUT) -62.39 1159.61 0.2741 1 1.0 A_q = -102.ppm, 20uA off photo-cathode,
1074 -86.82 +- 0.74 1 (OUT) -62.39 1159.61 0.2741 1 1.0 A_q = -63.ppm, 20uA off photo-cathode,
1075 85.89 +- 0.74 0 (IN) -62.39 1159.61 0.2741 1 1.0 A_q = -731.ppm, 20uA off photo-cathode,
1076 84.54 +- 0.94 0 (IN) -62.39 1159.61 0.2741 1 1.0 A_q = -868.ppm Beam trip and tune beam, 20uA off photo-cathode,
1077 86.60 +- 0.76 0 (IN) -62.39 1159.61 0.2741 1 1.0 A_q = -966.ppm, 20uA off photo-cathode,
1078 86.39 +- 0.72 0 (IN) -62.39 1159.61 0.2741 1 1.0 A_q = -876.ppm, 20uA off photo-cathode,
1079 85.38 +- 2.10 0 (IN) -62.39 1159.61 0.8352 1 1.0 A_q = 908.ppm, new spot, 20uA off photo-cathode, slit controlled (16.9)
1081 88.10 +- 1.85 0 (IN) -62.39 1159.61 0.8352 1 1.0 A_q = 305.ppm, 20uA off photo-cathode,
1084 86.58 +- 0.81 0 (IN) -62.39 1159.61 0.8352 1 1.0 A_q = 537.ppm, 20uA off photo-cathode,
1085 86.30 +- 0.73 0 (IN) -62.39 1159.61 0.8352 1 1.0 A_q = 445.ppm, 20uA off photo-cathode,
1086 86.89 +- 1.26 0 (IN) -62.39 1159.61 0.8352 1 1.0 A_q = 955.ppm, 20uA off photo-cathode,
5/2/11 1096 86.01 +- 0.73 0 (IN) -62.39 1159.61 0.2509 1 1.0 A_q = -209ppm. 25uA off photo-cathode, slit controlled (15.7)
1100 85.92 +- 0.75 0 (IN) -62.39 1159.61 0.2509 1 1.0 A_q= -44ppm. 25uA off photo-cathode, slit controlled
1101 87.06 +- 1.73 0 (IN) -62.39 1159.61 0.2509 1 1.0 A_q= -85ppm. 25uA off photo-cathode, slit controlled
1102 86.55 +- 0.99 0 (IN) -62.39 1159.61 0.2509 1 1.0 A_q= -21ppm. 25uA off photo-cathode, slit controlled
1103 -85.54 +- 0.75 1 (OUT) -62.39 1159.61 0.2509 1 1.0 A_q= 324ppm. 25uA off photo-cathode, slit controlled
1104 -87.11 +- 0.75 1 (OUT) -62.39 1159.61 0.2509 1 1.0 A_q= 278ppm. 25uA off photo-cathode, slit controlled
1105 -86.57 +- 0.79 1 (OUT) -62.39 1159.61 0.2509 1 1.0 A_q= 456ppm. 25uA off photo-cathode, slit controlled
5/4/11 1113 87.92 +/- 0.74 0 (IN) -62.39 1159.59 0.8428 1 1.0 slit open
1114 87.44 +/- 0.90 0 (IN) -62.39 1159.59 0.8428 1 1.0 slit open, 3.3e6 events, helicity gates missed
1116 89.06 +/- 0.74 0 (IN) -62.39 1159.59 0.8428 1 1.0 slit open
1117 87.85 +/- 1.36 0 (IN) -62.39 1159.59 0.8428 1 1.0 slit open, missed helicity gates
1118 89.00 +/- 0.94 0 (IN) -62.39 1159.59 0.8428 1 1.0 slit open
1119 89.62 +/- 1.59 0 (IN) -62.39 1159.59 0.8428 1 1.0 slit controlled (14.9), removed gate generator from the mps chain
1120 86.94 +/- 1.36 0 (IN) -62.39 1159.59 0.8428 1 1.0 slit controlled
1121 86.46 +/- 1.64 0 (IN) -62.39 1159.59 0.8428 1 1.0 slit controlled
1122 87.80 +/- 1.18 0 (IN) -62.39 1159.59 0.8428 1 1.0 slit controlled
1123 84.94 +/- 1.08 0 (IN) -62.39 1159.59 0.8428 1 1.0 slit controlled
1124 85.16 +/- 1.53 0 (IN) -62.39 1159.59 0.8428 1 1.0 slit controlled, missed helicity gates
1125 86.13 +/- 0.80 0 (IN) -62.39 1159.59 0.8428 1 1.0 rates ~12.5 kHz, slit controlled
1126 -89.65 +/- 0.73 1 (OUT) -62.39 1159.59 0.8428 1 1.0 slit controlled,
1127 -87.42 +/- 2.14 1 (OUT) -62.39 1159.59 0.8428 1 1.0 slit controlled, mised helicity gates
1128 -87.71 +/- 1.46 1 (OUT) -62.39 1159.59 0.8428 1 1.0 slit controlled,
1130 -85.93 +/- 0.74 1 (OUT) -62.39 1159.59 0.8428 1 1.0 slit controlled,
1131 -89.14 +/- 0.90 1 (OUT) -62.39 1159.59 0.8428 1 1.0 slit controlled,
1132 -87.87 +/- 0.87 1 (OUT) -62.39 1159.59 0.8428 1 1.0 slit controlled, missed helicity gates
1133 -87.58 +/- 0.74 1 (OUT) -62.39 1159.59 0.8428 1 1.0 rates ~12.4 kHz, slit controlled,
5/6/11 1145 88.24 +/- 0.75 0 (IN) -62.40 1159.20 0.6460 1 1.1 right hall probe=0.14155, 20uA off photo-cathode, slit controlled (12.6)
1146 87.11 +/- 0.74 0 (IN) -62.40 1159.20 0.6460 1 1.1 20uA off photo-cathode, slit controlled (12.6)
1147 87.85 +/- 1.15 0 (IN) -62.40 1159.20 0.6460 1 1.1 20uA off photo-cathode, slit controlled
1148 87.53 +/- 0.74 0 (IN) -62.40 1159.20 0.6460 1 1.1 20uA off photo-cathode, slit controlled
1171 88.49 +/- 0.64 0 (IN) -62.40 1159.20 0.6460 1 1.1 right hall probe=0.1370, 20uA off photo-cathode, slit controlled
1172 86.29 +/- 0.74 0 (IN) -62.40 1159.20 0.6460 1 1.1 20uA off photo-cathode, slit controlled
1175 87.09 +/- 0.74 0 (IN) -62.40 1159.20 0.6460 1 1.1 20uA off photo-cathode, slit controlled
5/9/11 1217 -86.45 +/- 1.01 1 (OUT) A_q = 735.ppm beam trip at the end, 20uA off photo-cathode, slit controlled (14.1)
1219 -86.74 +/- 1.03 1 (OUT) A_q = 819.ppm beam trip at the end, 20uA off photo-cathode, slit controlled
1220 -86.83 +/- 0.81 1 (OUT) A_q = 691.ppm beam trip at the end, 20uA off photo-cathode, slit controlled
1221 -87.50 +/- 0.75 1 (OUT) A_q = 833.ppm, 20uA off photo-cathode, slit controlled
1222 -86.69 +/- 0.74 1 (OUT) A_q = 684.ppm, 20uA off photo-cathode, slit controlled
1223 86.24 +/- 0.74 0 (IN) A_q = -698.ppm, 20uA off photo-cathode, slit controlled
1224 87.65 +/- 0.74 0 (IN) A_q = -676.ppm, 20uA off photo-cathode, slit controlled
1225 88.62 +/- 0.74 0 (IN) A_q = -593.ppm, 20uA off photo-cathode, slit controlled
5/12/11 1230 -87.46 +/- 0.74 1 (OUT) A_q = 10.ppm, slit controlled (31.6)
1233 -85.17 +/- 0.74 1 (OUT) A_q = 14.ppm, slit controlled
1234 -88.30 +/- 0.72 1 (OUT) A_q = 118.ppm, slit controlled
1235 85.89 +/- 0.74 1 (OUT) A_q = -244.ppm, slit controlled
1237 85.63 +/- 0.84 1 (OUT) A_q = -73.ppm, slit controlled
1239 86.57 +/- 0.74 1 (OUT) A_q = -107.ppm, slit controlled
1240 85.86 +/- 1.71 1 (OUT) A_q = -195.ppm, slit controlled
List of leakage checks
Run Date Absolute rate (Hz) Active halls Comments 515 11/23/10 0 A we should double check this, if there is any nice retroactive way 518 11/23/10 0 A 744 2/7/11 2 774 2/8/11 1-2 B 819 2/14/11 1-2 829 2/19/11 10 A+B 846 2/22/11 5 889 3/18/11 2.7 (avg for 4-5 min)A Hall A 5 uA 926 4/4/11 940 4/6/11 3 A Hall A ~4uA 958 4/8/11 985 4/13/11 3 A 1068 4/27/11 17 A Slit closed. Hall A ~120uA. 1208 5/6/11 12.1 A Hall A ~120uA 1241 5/12/11 0.13 A Hall A ~4uA
List of good Moller spin dance runs (this can be combined with the above table, if desirable) The HWP column has a (L) for flipped left, and (R) for flipped right.
Date Run Polarization (%) HW Plate Vert. Wien (deg.) Horiz. Wien HALLC:p(MeV) QE(%) Comments
11/23/10 508 c +40.04 +/- 1.23 1 (OUT) -0.1 1159.66 0.35 1 um foil, 200 nA
509 c +40.05 +/- 1.88 1 (OUT) -0.1 1159.66 0.35 1 um foil, 1.05 uA
510 +40.40 +/- 1.03 1 (OUT) -0.1 1159.66 0.35 1 um foil, 1 uA
511 +40.13 +/- 0.68 1 (OUT) -0.1 1159.66 0.35 1 um foil, 0.9 uA
512 +40.19 +/- 0.70 1 (OUT) -0.1 1159.66 0.35 1 um foil, 0.9 uA
513 +40.13 +/- 0.70 1 (OUT) -0.1 1159.66 0.35 1 um foil, 0.9 uA
514 +40.14 +/- 0.65 1 (OUT) -0.1 1159.66 0.35 1 um foil, 0.57 uA
517 -2.75 +/- 0.65 1 (OUT) +29.0 1159.66 0.35 1 um foil, 0.9 uA
519 -3.70 +/- 0.69 1 (OUT) +29.0 1159.66 0.35 1 um foil, 0.9 uA
520 -3.48 +/- 0.68 1 (OUT) +29.0 1159.66 0.35 1 um foil, 0.9 uA
521 +75.85 +/- 0.88 1 (OUT) -31.0 1159.66 0.35 1 um foil, 0.9 uA
522 +76.81 +/- 0.69 1 (OUT) -31.0 1159.66 0.35 1 um foil, 0.9 uA
523 +75.61 +/- 0.69 1 (OUT) -31.0 1159.66 0.35 1 um foil, 0.9 uA
524 +75.50 +/- 1.25 1 (OUT) -31.0 1159.66 0.35 1 um foil, 0.9 uA
525 +74.54 +/- 0.96 1 (OUT) -31.0 1159.66 0.35 1 um foil, 0.9 uA
526 +75.37 +/- 0.67 1 (OUT) -31.0 1159.66 0.35 1 um foil, 0.9 uA
527 +87.89 +/- 0.70 1 (OUT) -75.0 1159.66 0.35 1 um foil, 0.9 uA
528 +87.63 +/- 0.69 1 (OUT) -75.0 1159.66 0.35 1 um foil, 0.9 uA
529 +86.69 +/- 0.69 1 (OUT) -75.0 1159.66 0.35 1 um foil, 0.9 uA
530 +86.83 +/- 0.79 1 (OUT) -75.0 1159.66 0.35 1 um foil, 0.9 uA
531 +88.64 +/- 0.74 1 (OUT) -63.0 1159.66 0.35 1 um foil, 0.9 uA
532 +89.65 +/- 1.12 1 (OUT) -63.0 1159.66 0.35 1 um foil, 0.9 uA
533 +90.32 +/- 0.69 1 (OUT) -63.0 1159.66 0.35 1 um foil, 0.9 uA
534 +89.51 +/- 0.68 1 (OUT) -63.0 1159.66 0.35 1 um foil, 0.9 uA
535 +89.73 +/- 1.90 1 (OUT) -63.0 1159.66 0.35 1 um foil, 0.9 uA
536 +90.04 +/- 0.91 1 (OUT) -63.0 1159.66 0.35 1 um foil, 0.9 uA
2/10/11 771 -85.92 +/- 4.22 1 (OUT)L -63.22 87.10
772 -90.36 +/- 0.73 1 (OUT)L -63.22 87.10
773 -88.62 +/- 0.73 1 (OUT)L -63.22 87.10
776 -73.81 +/- 0.74 1 (OUT)L -30 87.10 good (energy not reading back)
777 -76.53 +/- 0.74 1 (OUT)L -30 87.10 good (energy not reading back)
778 -75.89 +/- 0.75 1 (OUT)L -30 87.10 good (energy not reading back)
779 -74.29 +/- 0.74 1 (OUT)L -30 87.10 good (energy not reading back)
780 -76.13 +/- 0.92 1 (OUT)L -30 87.10 good (energy not reading back)
781 -75.18 +/- 0.71 1 (OUT)L -30 87.10 good (energy reading back)
782 -74.71 +/- 0.74 1 (OUT)L -30 87.10 good
783 -41.87 +/- 0.73 1 (OUT)L -1 87.10 good
785 -42.10 +/- 0.74 1 (OUT)L -1 87.10 good, 3c12 unstable
786 -42.62 +/- 0.74 1 (OUT)L -1 87.10 good, 3c12 unstable
787 -77.27 +/- 0.72 1 (OUT)L -90 87.10 good, 3c12 unstable
788 -76.99 +/- 0.73 1 (OUT)L -90 87.10 good, 3c12 unstable
790 -77.44 +/- 0.74 1 (OUT)L -90 87.10 good
791 -89.00 +/- 0.73 1 (OUT)L -62.4 87.10 good
792 -89.76 +/- 0.82 1 (OUT)L -62.4 87.10 3c12 drifting
793 -88.66 +/- 0.73 1 (OUT)L -62.4 87.10 3c12 drifting
794 +88.92 +/- 0.73 0 (IN)L -62.4 87.10 large charge asymmetry ~1166ppm
795 +90.77 +/- 2.74 0 (IN)L -62.4 87.10 charge asymmetry ~1052 ppm, Pockel's HV change
796 +88.82 +/- 0.73 0 (IN)L -62.4 87.10 charge asymmetry ~ 379, good
797 +87.87 +/- 0.73 0 (IN)L -62.4 87.10 good
798 +89.93 +/- 0.73 0 (IN)L -62.4 87.10 good
