Crew Chief Shift Log, 2026-09-03 DAY
Start of shift: Injector in Restricted Access. NL, SL, BSY in Power Permit.
Start of shift: Injector in Restricted Access. NL, SL, BSY in Power Permit.
Hall A Techs continued with shaving of shielding blocks. Hall A Techs removed two, 30' feet sections of SS piping, from Right HRS to make way for Target group H2 piping run. Target group continued forward with installation of H2 piping.
per AOD 3.4.2.1
AOD staffing requirements are satisfied, Faraday Cup 2 & Inline Dump are locked in. RF is Off. Box supplies Off
... ever since I've awaken my telekinesis powers (see linked ELog)
and declared myself as the new vigilante THOUGHTFORCE !!! (see linked ELog)
I've come to realize that there never was any danger
and the thing I've been fighting for this whole time... was simply good quality beam & ABUs
Goodnight sweet CEBAF. Until next time, my good friend :'(
After the SSG completed their work and the injector tunnel dropped to RA, I took a look at the laser safety system. While the "Laser On" warning signs outside were illuminated, the front door could be pulled open w/o a badge swipe, the mag lock failed to engage. All emergency crash buttons successfully turned off all amplifiers, but the red crash button located on the mag lock box inside the front door was physically stuck and unresponsive. The floor safety mat functioned properly.
Laser room work continued until it was recognized that the mag lock door was malfunctioning. Work was stopped, the laser amplifiers were turned off, status logged, and EHS&Q notified. End of shift injector was locked up, investigation will continue after today's 8am meeting. No laser room work until issue is resolved.
1. Final laser launch with irises setup today
2. IA driver hardware installation started, good progress
This afternoon, Jim established communication with the new IA Driver inside CEBAF laser room. The EPICS control screen worked fine (after some effort from Jim and Claire). We connected the Driver to Hall D IA.
Will continue with the laser measurements Friday at 11:00 am. Should be done by 1 pm.
While working in the laser room this afternoon, Jim and I found that the door can be opened even when the badge reader is showing RED (no access). The door appears to be simply unlocked, allowing entry without badge authorization.
I checked the emergency/crash buttons, and none of them is depressed. The lasers are on; they can be switched to CW mode and their power measured with the power meter. I turned off the laser Amplifiers.
Shukui will investigate.
CED command line tool updated on RHEL9 to use version 3.0.2: Migrated to gitlab and cmake.
Updated operational_restrictions web application to render urls in restriction comments as clickable links
UITF viewer Interlock configuration and EDM screens updated for new viewers
UED verification and updates for upcoming runs