Difference between revisions of "Moller Polarimeter/NPS"
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==Moller measurement summaries for NPS== | ==Moller measurement summaries for NPS== | ||
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Note on sign of polarization [https://hallcweb.jlab.org/polwiki/index.php/Sign_of_the_beam_polarization] | Note on sign of polarization [https://hallcweb.jlab.org/polwiki/index.php/Sign_of_the_beam_polarization] | ||
Revision as of 11:42, 9 October 2023
Moller measurement summaries for NPS
Note on sign of polarization [1]
Note that this is the first experiment to use the new cryogen-free superconducting target magnet.
September 22, 2023
- IHWP IN: P = -80.14 +/- 0.54 %
- IHWP OUT: P = 80.55 +/- 0.58 %
- Tune up at 5 pass.
- Q1 = 126.86 A
- Q2/Q3 = -1318.0 A
- Final collimator settings: https://logbooks.jlab.org/entry/4185462
- 1/2 = -0.60/-0.60
- 3/4 = -1.80/-2.40
- 5=0.0
- 6/7=-2.90/-2.80
- Summary log entry: https://logbooks.jlab.org/entry/4185474
- Runs on 9/22/2023 (QE=0.3215%)
Run Pol (%) Error (%) Hwien HALC:p(MeV) Comment 1787 - - -48.3 - First run after gain matching calorimeters, 1 um foil 1788 - - -48.3 - Changed ADC/TDC prescale 1789 - - -48.3 - All scintillators turned on 1790 - - -48.3 - Q3 reduced from 1338 to 1318 A 1791 - - -48.3 - Changed memory delay from 4->3 1792 - - -48.3 - Changed memory delay from 3->5 1793 - - -48.3 - junk 1794 - - -48.3 - After rebooting all 1795 - - -48.3 - Added delay to memory strobe (16 ns, 8 ns) 1796 - - -48.3 - Changed defaults in CRL 1797 - - -48.3 - Set memory delay to 7 (WSI was unplugged - woops) 1798 - - -48.3 - Delay=7 1799 - - -48.3 - Delay=3 1800 - - -48.3 - Delay=2 1801 - - -48.3 - Delay=4, 4 um target 1802 - - -48.3 - changed prescale 1803 -79.93 0.77 -48.3 10539.04 IHWP=IN 1804 -80.18 0.77 -48.3 10538.97 IHWP=IN 1805 80.18 0.82 -48.3 10538.83 IHWP=IN 1806 78.62 2.84 -48.3 10539.53 IHWP=IN 1807 81.13 0.86 -48.3 10539.14 IHWP=IN
