Aggregator

Log Number: 4474645Logbook(s): 

• ELOG

Entry Makers: bschaumlBody: 

I noted that VIP2I00 began rising again which was due to the gun valve (VBV2I01A) closing. I'm confused as to why this happened as the trip limits were not exceeded, at least as far as the PVs show. Very suspicious...

Log Number: 4474643Logbook(s): 

• ELOG

Body: The following entry was placed in the Accelerator Bypassed-Interlocks Log (ABIL) Device: OM26 Function: Oxygen Monitor Location: SL Mobile Purpose: Unit not in use. Bypassing to set alarm disable bit. Exp.

Log Number: 4474642Logbook(s): 

• ELOG

Body: The following entry was placed in the Accelerator Bypassed-Interlocks Log (ABIL) Device: OM25 Function: Oxygen Monitor Location: SL Mobile Purpose: Unit not in use. Bypassing to set alarm disable bit. Exp.

Log Number: 4474639Logbook(s): 

• ELOG

Body: The following entry was placed in the Accelerator Bypassed-Interlocks Log (ABIL) Device: OM14 Function: Oxygen Monitor Location: NL Mobile Purpose: Unit not in use. Bypassing to set alarm disable bit. Exp.

Log Number: 4474638Logbook(s): 

• ELOG

Body: The following entry was placed in the Accelerator Bypassed-Interlocks Log (ABIL) Device: OM13 Function: Oxygen Monitor Location: NL Mobile Purpose: Unit not in use & throwing false alarms. Bypassing to set alarm disable bit. Exp.

Log Number: 4474637Logbook(s): 

• ELOG

Body: ACC=>VACUUM has been disabled in alarm handler

T/S

Log Number: 4474636Logbook(s): 

• ELOG

Body: The following entry was placed in the Accelerator Bypassed-Interlocks Log (ABIL) Device: OM13 Function: Oxygen Monitor Location: NL Mobile Purpose: Unit not in use & throwing false alarms. Bypassing to set alarm disable bit. Exp.

Log Number: 4474635Logbook(s): 

• SRFLOG
• ELOG
• RFLOG

Entry Makers: dthomasBody: 

Log Number: 4474633Logbook(s): 

• ELOG

Body: ACC has been enabled in alarm handler

HCO

Log Number: 4474634Logbook(s): 

• ELOG

Tags: 

• Readme

Entry Makers: eformanBody: 

Spoke with CIS on-call regarding gun HV trip and degraded vacuum.
On their instruction, we opened the gun valve to assist pumping the vacuum back down (vacuum is recovering slowly...it was sitting at 1e-5 torr for ~15 minutes).
Plan moving forward is to wait until vacuum recovers (~1e-10 torr), then ramp the gun up at 50 kV/min, watching for signs of field emission (decarads, vacuum, gun current, anode current).
If the ramp-up goes without a problem, we will let the gun soak at 200 kV overnight without beam.

Log Number: 4474632Logbook(s): 

• ELOG

Body: ACC has been disabled in alarm handler

troubleshooting

Log Number: 4474631Logbook(s): 

• ELOG

Body: ACC has been enabled in alarm handler

HCO

Log Number: 4474630Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl05

Saved: eforman 03-05-26 17:10:50 {A:5 B:3 C:1 E:345 A=BS B=BS C=BS D=BS 0R08=0.00 0R08 dump in.

Log Number: 4474628Logbook(s): 

• ELOG
• SLOG

Tags: 

• MCC8am
• Software and Controls

Body: 

Update UITF FCC Firmware - Support Q0 Measurements
New RTP Cell Driver EPICS, Screen, Controls Update
OPS Alarm Handler HCO Troubleshooting and Assistance

Log Number: 4474622Logbook(s): 

• ELOG
• RADLOG

Entry Makers: dthomasBody: 

All 3 probes passed: Ludlum 78, Bicron, and 6112B.

Log Number: 4474621Logbook(s): 

• ELOG
• SRFLOG

Body: 

Completed One hour run at 22.4 MV/m (Cavity 6) No FE

Log Number: 4474620Logbook(s): 

• ELOG

Body: 

When turning on the ARC7 box supply, the YBBS06 shunt was still showing signs of the known issue. We have ruled out the shunt chassis, cabling going downstairs, the connections on the magnet for the shunt, and the magnet leads themselves to the magnet. The next thing that we can take a look at without needing access downstairs is taking an LCR meter and measuring the string. Paperwork to follow.

Log Number: 4474618Logbook(s): 

• ELOG

Entry Makers: bschaumlBody: 

We were running 60 uA CW to the ILD. First three valves closed and pressure spiked above 10^-4 on the gun pump. I didn't see anything on the DecaRADs at the time of the trip though there was a brief spike of 40 counts when the injector SME began sending CW. The gun pump appears to be pumping down very slowly, but is still at 10^-5 as I submit this log

Log Number: 4474616Logbook(s): 

• ELOG

Body: 

The FE measurements need to wait until swing/owl shift when no one is trying to recover RF.

Log Number: 4474615Logbook(s): 

• ELOG

Body: 

Network cable pulled for cameras 1 and 2 in LERF. Cables are terminated and connected at the cameras side.