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Log Number: 4153063Logbook(s): 

• ELOG

Body: 

Magnet Measurement:

Status update for SL warm region girders at MQL2L26-MQL2L27.

We have completed all magnet work/disassembly at these two girder locations. The LCW is OFF, and quads are ready to be separated, minus we left one bolt in each quad finger tight (aisle side-please place bolt in bin) just to avoid any incident. The DB/DJ corrector pairs are removed as well. So, Tony can get to the BPM cables and disconnect, and Greg and vacuum group are ready to roll. Adding S/A in case Chris has any work prior to removal.

Log Number: 4153060Logbook(s): 

• ELOG

Body: 

Approved

Log Number: 4153046Logbook(s): 

• ELOG

Body: 

PSS firmware updates are continuing in the MCC. Good progress is being made.
Additionally we replaced 18 safety output modules in the NL with updated components.

Log Number: 4153038Logbook(s): 

• ELOG

Body: 

BLM's Attached to the 1/4 CM and nearby have been removed from the beam-line and stored in the cable tray above the beam-line.

Log Number: 4153037Logbook(s): 

• ELOG

Body: 

SA system A and B racks tear down has started. SL old coax communication cables removed from racks and pulled back to the box duct.

Log Number: 4153036Logbook(s): 

• ELOG

Body: 

RS box checks completed. Results attached.

Log Number: 4153035Logbook(s): 

• LERFLOG
• ELOG

Body: 

ODH sensor OM2018 in the LERF alarmed.
Sensor was found reading low without actual ODH condition. Sensor was adjusted to normal O2 level.
This is a second time for this sensor to slowly drift down since replacement. If it happens again we will have to replace it.

Log Number: 4153018Logbook(s): 

• ELOG

Body: 

Installed upgraded shunt chassis' for MBW3E01 and MBZ5E02 back in the rack. We brought two more chassis' from rack E101B09 to DC Power shop.

Log Number: 4153016Logbook(s): 

• ELOG

Body: 

All Digitel 500s removed from the injector vacuum racks. VDP0L01 and VDP0L03 ion pumps are now powered from Gamma SPCe based interlock chassis. VDP0L06 ion pumps are on local supply in tunnel. VIP2I00 - VIP0I01 are still powered and monitored on UHV supplies. All Injector vacuum interlock relay chains disabled.

Log Number: 4153015Logbook(s): 

• ELOG
• POLOG

Body: 

Vented beamline from chopper through capture.
Removed YAG viewer without tophat, installed one with tophat to avoid viewer charging.
Removed harp that was inserted too far to use with tophat, replaced with reworked one compatible with tophat on viewer.
Disconnected beamline downstream of chopper, blanked off
Pumping down with turbopump cart overnight, leak check tomorrow.

Details: https://logbooks.jlab.org/entry/4152988

Log Number: 4153012Logbook(s): 

• ELOG

Body: 

Added Admin tags and shut off breakers for all trims in the North Linac and all but Zone 1 in the South Linac.

Kissinger, Diggs, Humphry

Log Number: 4153010Logbook(s): 

• ELOG
• INCLOG

Body: 

All Digitel 500s removed from racks and placed near back wall until a new storage location is found.
Two new DP station chassis installed in rack to continue pumping on VDP0L01 and VDP0L03.

Log Number: 4153004Logbook(s): 

• ELOG

Body: 

Test

Log Number: 4152994Logbook(s): 

• ELOG

Tags: 

• PDWeeklySummary

Body:  PD WEEKLY SUMMARY

• PROGRAM DEPUTY: Theo Larrieu

Log Number: 4152993Logbook(s): 

• ELOG

Body: 

We moved 18 new supplies (6 to each building) to the W3, W4, and W5 buildings to stage them for installation.

Kissinger, Diggs

Log Number: 4152992Logbook(s): 

• ELOG

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LOTO Box Locations: Injector: Box is behind zone 4 on RF work bench. North Linac Service Building: In front of Zone 12 on shelving unit. South Linac Service Building: In front of Zone 12 on table.

Log Number: 4152990Logbook(s): 

• ELOG

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With kicker tests completed the gun group disconnected the PSS kicker control cable for vacuum work. Before installing the new 200 kV kicker magnet we'd like to perform a "soft" low temp bake of that section of beam line, won't happen for some weeks TBD.

Log Number: 4152989Logbook(s): 

• ELOG

Body: 

Hi Leo, I moved that lone "anode bias" UHV PS higher in the rack with the others, so now they're consolidated. Thanks to Mark for helping.

Log Number: 4152987Logbook(s): 

• ELOG

Body: 

Removed MAD0I07H/V from the beamline.

Log Number: 4152986Logbook(s): 

• ELOG

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EESDCP removed the Sorenson Bulk Power Supplies from IN02B26 Trim Rack, so EESIC can do their task.

E. Diggs, M. Kissinger