Revision as of 07:39, 7 October 2021

Thursday, October 7

In last 24 hours:
- Early Riser: https://logbooks.jlab.org/entry/3919395
- Owl summary: https://logbooks.jlab.org/entry/3919305
- Swing summary: https://logbooks.jlab.org/entry/3919178
- Day summary: https://logbooks.jlab.org/entry/3918973
- Production run started at 20:58
- 0.21B triggers with hot & cold Helium empty target cell
- 0.7B triggers with He target full
- Target cooled down and filled with liquid He4
- HallD cavity BPM calibration, https://logbooks.jlab.org/entry/3919129
- Gas bottle changed, https://logbooks.jlab.org/entry/3919183 (Elton)
Issues:
- Target software, https://logbooks.jlab.org/entry/3919168 (Carlin)
- Target, LH2 temperature interlock not changed, https://logbooks.jlab.org/entry/3918975 (Elton)
- LED skim, https://logbooks.jlab.org/entry/3918989
- Bleedthrough Different Beam structure after target change (Tuesday evening)
Plan:
- 200 nA CDC & FDC turn off (3 shifts)
- 100 nA CDC & FDC turn off (2 shifts)
- If Hall A is back online today
  - Check radiation
  - HARP scan
  - Bleedthrough run with 100 kHz random pulser, HallD laser turn off, and no beam for 40mn

@@ Line 17: / Line 17: @@
 #* Bleedthrough [https://logbooks.jlab.org/entry/3918952 Different Beam structure after target change] (Tuesday evening)
 #[https://halldweb.jlab.org/primexd/run_plan/Run_Plan_Fall_2021.pdf Plan:]
-#* [https://logbooks.jlab.org/entry/3913494 Before taking data: check radiation level and beam quality] (HARP scan)
 #* 200 nA CDC & FDC turn off (3 shifts)
 #* 100 nA CDC & FDC turn off (2 shifts)
+#* If Hall A is back online today
+#** Check radiation
+#** HARP scan
+#** Bleedthrough run with 100 kHz random pulser, HallD laser turn off, and no beam for 40mn