Difference between revisions of "Run Planning Meeting Notes, Nov 8-Nov 14, 2018"

Revision as of 17:14, 12 November 2018

Last 72h:
- 6h down time on Friday due to HV issue on RF cavity 1L23
- 12h down on Saturday due to 1L23 and more
- 4h down on Sunday
- Completed the goal of 5 full cycles (2B events) on Sunday ~5pm
Issues
- Hot FCAL channel
Reports
Plans
- System Recovery (Monday 07:30, 6h+): switching back to 8.8GeV running?
- Beam Studies (Tuesday 08:30, 8h): installation of beam pipe
Notes

Last 24h:
- >80% beam available, >95% used
- completed 2nd cycle
- harp scan ongoing
Issues
- Sluggish CSS during the day, investigating
- Tagger dump BPM AD00c
Reports
Plans
- Beam Studies and System Recovery switched
- System Recovery (Monday 08:30): investigate water leak in tunnel, ~3h
- Beam Studies (Tuesday): high current test, halls A, B and C have to stayed locked, D optional
Notes

Last 24h:
- TAC run with empty target, v-wire at 50nA, reduced field in PS (400A), low E TAGH counters on
  - logbook entry with preliminary analysis
- Harp Scan
- Beam tuning (deferred)
- Data taking with reduced PS field, coherent edge at 7GeV
  - TAGH Rates (Amo), (Diamond), Coincidence Rates
  - Low energy running Trigger Spreadsheet
  - RF problems in the night
Issues
- PS and PSC coincidence scalers frozen, ps_client running on gluon100 restarted, instructions in hdops wiki
- beam position went awry, rates soared, reference module for IOC reading out 5C11B failed, replaced
- EPICS froze for 2h, started working without intervention, now again unresponsive
- Target PTR turned off, do not ignore any alarms!
Reports
- Monitoring
Plans
Notes

@@ Line 13: / Line 13: @@
 *[https://halldweb.jlab.org/wiki/index.php/File:Fall18_week8.jpg Hall D schedule for week 8]
 *[https://halldweb.jlab.org/wiki/index.php/File:Fall18_week9.jpg Hall D schedule for week 9]
+== Tuesday, Nov 13 at 08:45 ==
+#Last 24h:
+#* 9h+ scheduled down time due to system recovery
+#* Preparations for beam pipe installation tomorrow
+#* Upgrade to Hall D current locks + beam based test (30min)
+#* Switch back to standard production running:
+#** Ramp up PS magnet to 910A
+#** Low-energy tagger counters off
+#** Set coherent peak at 8.8GeV
+#Issues
+#Reports
+#* [https://logbooks.jlab.org/entry/3625122 Rho polarization for low-energy run] (Alex)
+#Plans
+#* Beam Studies (Tuesday 08:30, 8h): installation of beam pipe
+#Notes
 == Monday, Nov 12 at 08:45 ==