Aggregator
Operator SIGN IN
Follow-up Re: ILM0R03 limiting beam current
Good observations on not-optimal placement of ILM0R03 in the close proximity of Insertable Dumplets stack.
On the other hand, during last year's run this BLM was relatively quiet and did not pose a major hindrance to beam delivery. Perhaps there is still some space for improvement in beam steering.
If we are to relocate this BLM I'd like to review this proposal with representatives of OPS and CASA and come to consensus.
CREW CHIEF SIGN IN
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM
Date : 03-24-26
Time : 15:28:31
Day : Tuesday
Shift : Swing
Crew Chief : Richardson
Program Deputy: Roblin
Team : C
Arm : Shriner
Designated SSO: Anthony
LERF Operator:
Operators : Anthony, Shenenberger, Shriner
This stamp certifies that the above Crew Chief has read/reviewed/received the following:
PR for tracking: 2L20-5 GSET 0 for high GLDER
PR for tracking: 1L21-1 GSET 0 for high GLDER
QuickPic - IDX Baseline before Pass 2 Extraction
Fopt 26mar241431 results: Same FOPT after MQA9S02 adjust (more legible)
Comment: Same FOPT after MQA9S09 adjust (more legible)
HOSTNAME: opsl03
CED WORKSPACE: OPS CED LOGIN KEY: pro
MYA DEPLOYMENT: ops
CONFIG PATH: /cs/prohome/apps/q/QTSnyder_QT5/1-2/fileio/config/cs.conf
DIFORB PATH: /usr/ntfs/public/optics/diforb
Crew Chief Shift Log, 2026-03-24 DAY
Start of shift: Running FOPT after steering to lower IDXs
Crew Chief Timesheet Summary: 24 Mar 2026 DAY
Starting Hall C 2nd Pass Extraction
PASS2 has been enabled in alarm handler
COMPLETED Replace Multiple 20A SCE
Autolog save
QuickPic - 9A viewer walk post MQA9S02 change
Fopt 26mar241431 results
Comment:
HOSTNAME: opsl03
CED WORKSPACE: OPS CED LOGIN KEY: pro
MYA DEPLOYMENT: ops
CONFIG PATH: /cs/prohome/apps/q/QTSnyder_QT5/1-2/fileio/config/cs.conf
DIFORB PATH: /usr/ntfs/public/optics/diforb
Fopt - After adjusting MQA9S02
QuickPic - 9A viewer walk
Hight current injector for Low-E run
High current to ILD up to 100uA from Laser C at 500MHz. A save was done #26881
I think there was some confusion between 250MHz and 500MHz lasers which is resolved now. We need to use 500MHz C laser for high current and good transmission.
For Moller run we probably have to increase the gun voltage from 140kV to closer to 200kV. However, for this current run, we are good.
C laser goes through C slit and B through B and D through A slit. A laser is off.
Wien is set to zero and that is for good polarization to Hall D.










