Aggregator
CANCELLED Investigate "beam dragging" around IHA0L03
Resolved already by Tony (thank you!) and checked by Amy, Dennis and Victor,
Hi Joe,
The beam dragging at IHA0L03 did disappear, checked early in the run: https://logbooks.jlab.org/entry/4468626
Looks like a new harp was installed: https://logbooks.jlab.org/entry/4456728
Amy
IA Driver Characterization Summary and Data Anaysis
The attached file contains summary and analysis of IA driver characterization carried out in CEBAF laser room using Hall D laser on September 16th 2026. The 10/90 rise/fall time is less than 10 μs
The maximum ringing is ~21.34 % of the change in two intensity levels.
CANCELLED ITV0I01 charging and IPM response to beam intensity
iocea5 restoration failed
CANCELLED Copy of Install/test seed laser control board
CANCELLED install and test A seed laser control board
iocea4 restoration failed
COMPLETED Copy of Installation of a fast shutter system for cebaf drive laser
iocea2 restored
CANCELLED Copy of injector laser beam check up
COMPLETED Laser extinction ratio improvement
CANCELLED CEBAF Drive Laser room entry passcode change
Survey and Alignment work summary
iocea3 restored
COMMENT ON SAM 2026 Box Supply Work Preventative Maintenance/interlock checks
COMMENT ON Vacuum Activities CEBAF 9/09/2026 through 12/31/26 (SAM26)
1L06. Set up waveguide pumping manifold assembly.
1L25 & 1L26. Closed valves VBV1L25B & VBV1L26A. Closed and isolated beamline pump from VIP1L26B. VIP1L25B @2e-7, VIP1L26A @1e-8 & VIP1L26B @3e-8
Moved remote valve box down to 1L09 & 1L10. VBV1L09B & VBV1L10A are open & will remain open for the 300k warmup. Actively pumping 1L09/1L10 with BL pump located @ VIP1L10B. Isolation valve is open.










