Aggregator
IOCHLA Ongoing investigation
Got a call about IOCHLA Camac Chain not restoring. reboot was attempted before the call went out, consoled in and the IOC is spitting out errors. Contacted software on call to check and see if it did appear to be a hardware fault. After performing the M/S CRATE reboot procedure problem persisted. James Donaldson and I went and checked the crates. All three are on, CAMAC crate appeared to be operational with a halted bus. Performed physical reboot of all three crates in the proper order to no avail.
MCC IS UNSTAFFED
THOMSAS JEFFERSON NATIONAL ACCELERATOR FACILITY
MACHINE CONTROL CENTER UNSTAFFED STAMP
Date : 03/26/2024
Time : 15:56
Crew Chief On-Call : Richardson
Program Deputy : Nissen
The MCC is unstaffed. The following satisfies AOD and LOD requirements to leave the control room unstaffed:
iochla restored
COMMENT ON Investigate IOCHLA 3/26/24
Gun HV Turned Off
Gun HV Rampdown Initiated
VIP1I01 stray field test with beam, BSList 111186
iochla restored
ODH head OM208 at LERF RF Gallery - Zone 04 has been bypassed.
Follow-up Re: LERF intermittent ODH alarm
COMMENT ON MXS3S02 Vacuum Leak Repair
COMMENT ON Rotate LCW Pumps NL, WA, SL, EA
The following cavity histories have been updated: 2L02-1
The following cavity histories have been updated:
2L02-1
Username: tdavis
Date/Time: 03-26-24_14:53:02
RF Status: Bad
Tuner Status: Good
Comment: The tube failed hi-potting and needs to be replaced. Tube Shorted (Varian SN: 0339).
Special Instructions:
LERF intermittent ODH alarm
iochla restoration failed
Follow-up Re: Laser beam modes/power/traces
This is what was performed this morning: setup a fast photodiode and Oscope to check the mode switching on C laser. BS–VL (12 times), TM–VL (12 times), CW-VL (20 times), BS-TM (10 times), BS-CW(16 times), TM-CW(16 times), no failure event except having to push the button twice during one BS-VL event and another one during TM-CW event. Also used a different detector (Newport power detector) to repeat CW-VL switching, no failure event was observed.