Aggregator
Downtime Incident CLOSED: MQN6E03 Troubleshooting
HarpFitter: IHA2C04 After MQN6E03 Mismatch
Downtime Incident CREATED: MQN6E03 Troubleshooting
Downtime Incident CLOSED: MQN6E03 Mismatch
COMMENT ON PSS Runtime Miscallenous Repairs
A loss of communication between the PLC and the Hall B counting room display caused the screen to freeze on the last message. After rebooting the display, normal operation was restored, and it is now showing the correct stage. Network connectivity was verified.
Program Deputy Weekly Summary, presented 2026-04-15
- PROGRAM DEPUTY: Salim Ogur
- DATE (from):
Downtime Incident CREATED: MQN6E03 Mismatch
MQN6E03 Mismatch
RTP HV Readbacks Stability
IOC MAC address change
Follow-up Re: Optics and Beam Motion Observations
MBC8A16V Mismatch
Follow-up Re: Current LabJack configuration in the Machine
1 Hour and 4 Min Long Run
Current LabJack configuration in the Machine
LabJack Configuration
Injector Service Building (ISB) - Connected to IPM0R05 single pass non-MUX'd
North Linac BPM Test Stand - Connected to IPM1S00A single pass non-MUX'd
East Arc Building 2 (E2) - Connected to IPM1A04 single pass MUX'd
West Arc Building 4 (W4) - Connected to IPM2A24 single pass MUX'd
Beam Switch Yard Service Building (BSYSB) - Connected to IPM3C12 single pass non-MUX'd
Analysis tasks
Every root file is in cdaql2's /data/cdaq/hallc-online-ndelta_vcs2_2026/ROOTfiles
1. Elastic scattering
We took the electron singles and the dummy singles.
Full replays are almost done.
Calculate the efficiency regarding the proton absorption.
2. Comparison of simc and data.
*d and *a setting full replays are almost ready and simc is in /work/hallc/alphaE/sangbaek/simc_gfortran/worksim .
Elastics are there too.
Compare the data to the simulation.
3. Cross-checking 7a statistics
SLI images with slit in/out
Exposure time set 4s to lighten surrounding area.
Well defined diffraction pattern isn't visible.
Fig 1 - slit out/ Fig 2 slit in/ Fig 3 - camera settings
Looks like several sources of diffraction, one from a circular aperture then one from the slits. Also of note that the image looks different before and after optics changes.










