Difference between revisions of "Saturday, Mar. 05: OWL Shift"
From Hall A Wiki
(New page: Go back to Daily Run Plan Daily Run Plans <b>Previously...</b> * Production data (Kin48_3) <b>Specific mission</b> * Note: 1/ Continue production mode - 15uA through Compton ch...) |
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- PreScaleL : PS9 =1, + DVCS config. | - PreScaleL : PS9 =1, + DVCS config. | ||
| − | + | * Issues: | |
| + | - Can't control the Alpha Y axis of the raster. (MCC tried reboot but failed) - 1AM | ||
| + | - I came to CH and called to Bill to check | ||
| + | - Bill Gunning came to replace the PS (the escorted access) | ||
| + | - New PS initialization failed / dump diffuser issue, MCC reboot again but IOChla fail again (multi-times escorted access) | ||
| + | - From MCC(9:00AM) meeting, PD said it might be a remote reset switch (needs an analysis by expert). | ||
| + | - If happen again, the remote reset switch will be replaced and more investigate detail during access. | ||
| + | - Raster seemed controllable by MCC (look at the Oscilloscope), but spot++ data showed X did not change at all any current | ||
| + | - Expert called, Bob came and investigating... [https://logbooks.jlab.org/entry/3388258| HALOG] | ||
| + | - Meantime, CHL is crashed. Hall-A is now controlled access | ||
Revision as of 14:13, 5 March 2016
Go back to Daily Run Plan Daily Run Plans
Previously...
- Production data (Kin48_3)
Specific mission
- Note:
1/ Continue production mode
- 15uA through Compton chicane
- LH2 target
- DVCS ON
- LHRS=2.92GeV, Q1/Q2/Q3=1916.640(readout:1900)/1600/1600 (Q1 regul.OFF)
- PreScaleR : PS1=PS2=PS3=1, && PS8=200
- PreScaleL : PS9 =1, + DVCS config.
- Issues:
- Can't control the Alpha Y axis of the raster. (MCC tried reboot but failed) - 1AM - I came to CH and called to Bill to check - Bill Gunning came to replace the PS (the escorted access) - New PS initialization failed / dump diffuser issue, MCC reboot again but IOChla fail again (multi-times escorted access) - From MCC(9:00AM) meeting, PD said it might be a remote reset switch (needs an analysis by expert). - If happen again, the remote reset switch will be replaced and more investigate detail during access. - Raster seemed controllable by MCC (look at the Oscilloscope), but spot++ data showed X did not change at all any current - Expert called, Bob came and investigating... HALOG - Meantime, CHL is crashed. Hall-A is now controlled access
BPM/Spot++ Check
- After beam lost for considerable time (like beam study, pass change,...)
- Ask MCC to run 5uA wth carbon hole target and make sure you can see the hole through Spot++
