Table of 12 GeV Beam Energy Measurements

From HallCWiki
Revision as of 13:01, 22 June 2019 by Jones (Talk | contribs)

Jump to: navigation, search
  • The MCC Hall C energy measurement tool was updated on May 16th 2019 to fix a problem that caused it to give the wrong beam energy. See elog. The logbook links, before May 16th 2019, will show the results of beam energy when there was a problem in the code. The correct beam energies in the table are and they were calculated using a separate code using the dipole string current listed in table.
  • Synchrotron radiation is calculated for the full 34.3 deg bend of the Hall C dipole arc.
Date Logbook entry Current Beam energy Sync rad Hallc:p 1-(Beam Energy)/Hallc:p
Dec 12 2017 https://logbooks.jlab.org/entry/3503087 92.345 2.22178 +/- 0.00236 2214.36 0.0033
Jan 18 2018 https://logbooks.jlab.org/entry/3516186 268.150 6.42765 +/- 0.00306 0.00035 6404.37 0.0036
April 30 2018 https://logbooks.jlab.org/entry/3569862 443.656 10.60314 +/- 0.00415 0.00265 10597.7 0.0005
Oct 4 2018 https://logbooks.jlab.org/entry/3604084 443.487 10.59915 +/- 0.00415 0.00265 10597.6 0.0001
Dec 4 2018 https://logbooks.jlab.org/entry/3634940 159.6633 3.83345 +/- 0.0026 3821.20 0.0032
Dec 14 2018 https://logbooks.jlab.org/entry/3638789 205.523 4.94090 +/- 0.0028 4917.88 0.0047
March 13 2019 https://logbooks.jlab.org/entry/3667208 417.182 10.21404 +/- 0.00404 10205.4 0.0008
March 22 2019 https://logbooks.jlab.org/entry/3671165 258.207 6.19009 +/- 0.00302 6169.28 0.0034
March 28 2019 https://logbooks.jlab.org/entry/3673353 342.822 8.20883 +/- 0.00349 8184.96 0.0029
June 20 2019 https://logbooks.jlab.org/entry/3691774 115.82 2.783625 +/- 0.00243 2772.02 0.0041