RC meeting and Run Plan, Thursday March 9th

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RC Report

  • RC: Holly


Beam was restored during swing shift yesterday thanks to Jiwan and Zeke. We did note that when the carbon hole checkout gave confusing results, initializing the target ladder gave us a clear carbon hole image (as consistent with Bill's recommendation during the RC meeting yesterday). We lost beam due to accelerator issues for about 2 hours last night, and then restored beam before midnight. Owl shift continued with the slow current ramp-up on the pol-3He cell and hit 45uA this morning. We are back to 45uA production. Bill and Hunter evaluated the target performance this afternoon (https://logbooks.jlab.org/entry/4146074). They concluded that the position of the target as it polarizes seems important (better polarization in No Target position vs Carbon Hole, for example).

Swing summary: https://logbooks.jlab.org/entry/4145384 Owl summary: https://logbooks.jlab.org/entry/4145647 Day summary: https://logbooks.jlab.org/entry/4145914

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