Revision as of 08:06, 1 October 2021

Friday, October 1

In last 24 hours:
- Machine maintenance ended around 21:20, but we don't have a beam as of 8:30 (injector non-colinearity, 5E03 BLM trips, ...).
- Early Riser summary
- Owl summary
- Swing summary
- Day summary
- During downtime for maintenance:
  - BCAL pedestal calibration (Sergey)
  - FCAL base replacement Communication issue resolved(Rebecca/Mark/Malte)
  - FCAL HV scan (Igal)
- Timing calibration update (Sean)
- Beni started Special Run 81291 for SC dark rate at 8:30 remotely. (will take ~0.5h)
Issues:
- Strange behavior in FCAL base (Rebecca/Mark/Malte)
- 5 FCAL bases don't reach 1800V (Mark/Malte)
- Bleedthrough
Plan:
- Before taking data: check radiation level and beam quality (HARP scan)
- 50 nA with CDC & FDC turn on (2 shifts), Lubomir must be around
- 100 nA CDC & FDC turn off (2 shifts)
- 200 nA CDC & FDC turn off (8.4 shifts)
- Remove Be target to take empty target (will take 8h. on Monday?)

@@ Line 5: / Line 5: @@
 #* Beam came back around 17:40.
 #** [https://logbooks.jlab.org/entry/3915397 Radiation Level]: OK
-#** Harp scan: OK? checking ..
+#** [https://logbooks.jlab.org/entry/3915472 Harp scan]: OK
-#* Early Riser summary
+#* [https://logbooks.jlab.org/entry/3915714 Early Riser summary]
 #* [https://logbooks.jlab.org/entry/3915599 Owl summary]
 #* [https://logbooks.jlab.org/entry/3915397 Swing summary]