Feed aggregator

Log Number: 3855912Logbook(s): 

• UITFLOG
• ELOG

Entry Makers: kiarraBody: 

Magnet showed mismatch -- tried setpoint, nothing -- tried reseat, nothing.
Went up to swap the card... spare trim card wasn't good. No longer reading current, and showing board/block overheat and not ready. Double checked to make sure the card was in correctly. Looked good, lights were showing proper config... guess it's just a bad spare.

Going to attach Separate red tags to each trim replacement -- but this log will be used to describe the issues with both... I'll be sure to include which issue was presented by which trim.

Log Number: 3855911Logbook(s): 

• ELOG

Body: 

Task moved to mid-November to avoid signal-losses during SRF vacuum work at the front end of the NLinac.

Task approved.

Log Number: 3855909Logbook(s): 

• ELOG

Entry Makers: kiarraBody: 

There is a noticable change in the buncher PSET -- otherwise, things are looking good.

Log Number: 3855906Logbook(s): 

• ELOG

Body: 

Walkthrough with INSTALL and ME complete done, went well, we made a good plan. The photocathodes and manipulators are all secured against the heater assembly. Phil will sure up LM and add stop rings to short manipulators. Prep vacuum remains good on UHV~3.5 nA usual baseline. Phil is adding heat to HV chamber NEG's, turbo still on, IP off. Phil's got the ball, he'll work with INSTALL Thur ~6am during gun table move.

Log Number: 3855905Logbook(s): 

• ELOG

Body: 

I have ordered and received the additional connectors and Kapton wire. I'll order the solenoid connectors today.
Once all the materials are in hand, I will see if Michelle is available gor fabrication.

Log Number: 3855904Logbook(s): 

• ELOG

Body: 

I gave Rick the additional "Black Boxes" that need drilling. I will begin installing the 10 KV chassis mount Kings connectors tomorrow in the early A.M.

We need an ~ 60 to complete the CEBAF machine.
I have 20 available at this time. 40 more to build up.

Log Number: 3855903Logbook(s): 

• POLOG
• ELOG

Body: 

Day #28, Week 6 Day 3, Plans:

Tunnel --
* CIS + MechInstall Walk-Through of Gun2 Table Move,
Removal of Gun3 stub and Y-chamber, 9AM
* Gun2 vacuum pump disconnects
* More TBD after 9AM

InjSB --
* PSS Upgrade, IN02B{NI, 29, 30} 9a - 4p (Beizer)
* Wien controls work, IN01B03 (Dela Cruz)
* Viewer work, IN03B07 (Norris)
* BPM Work, IN03B{05-08, 23} (Francis)
* CIS Rack Work, IN01B{00-05} (Windham)

Toolbox attended by -- Hofler, Dela Cruz, Bullard,
Hernandez-Garcia, Gould, Norris, Croke, Grames, Cole,
Stutzman, Francis, Adderley, Zhang, Windham, Suleiman

Log Number: 3855902Logbook(s): 

• ELOG
• SRFLOG

Tags: 

• Beamline
• ShiftSummary

Entry Makers: ariBody: 

Inital walkthrough of NL vacuum.

1L02 - 8:40 a.m. 764.0Torr 29.99mmhg
1L06 - not connectes to CM
1L14 - 8:49 a.m. 763.8Torr
1L20 - 8:50 776.5Torr

Log Number: 3855901Logbook(s): 

• ELOG
• SRFLOG

Tags: 

• Beamline
• ShiftSummary

Entry Makers: ariBody: 

Inital walkthrough of NL vacuum.

1L02 - 8:40 a.m. 764.0Torr 29.99mmhg
1L06 - not connectes to CM
1L14 - 8:49 a.m. 763.8Torr
1L20 - 8:50 776.5Torr

Log Number: 3855900Logbook(s): 

• ELOG

Body: 

removed MPS BLM and ION chambers in this region.

Log Number: 3855899Logbook(s): 

• ELOG

Body: 

Finished wiring candies in rack CH01C07. This rack is now
ready for checkout.

Log Number: 3855897Logbook(s): 

• ELOG

Entry Makers: powerspkujBody: 

The work to reconfigure the electrical distribution on site is complete. All loads are being fed from the 33MVA substation.

Good work planning and execution by FML (powers & kujawa).

Log Number: 3855896Logbook(s): 

• ELOG

Entry Makers: powerspkujawaBody: 

Work to reconfigure the electrical distribution underway.

Log Number: 3855893Logbook(s): 

• ELOG
• LLRFLOG
• RFLOG
• SADLOG

Entry Makers: lfarrishwissmannBody: 

Good Morning
Right now we are contacting TOMCO to find out about a replacement preamp module, equipment is still LOTO until further notice.

Log Number: 3855890Logbook(s): 

• ELOG

Entry Makers: AnthonyBody: 

CTF inspection okay, no issues.

Log Number: 3855889Logbook(s): 

• UITFLOG
• ELOG

Body: 

The Newly Added Appertures (A5 ISLM904 and A6 ISLM905) have Current Readbacks available via Picoameters. The Readbacks are available on the following UITF Control Screens.

Log Number: 3855872Logbook(s): 

• UITFLOG
• ELOG

Body: 

Day1 of run2, October 27, 2020
Some rough patches in the beginning, but then things started to click. Beam restored to the elevated beamline viewer ITVM904 at the end of day shift. Yan and Ken will continue pushing things along.

Log Number: 3855857Logbook(s): 

• POLOG
• ELOG

Body: 

Day #27, Week 6 Day 2, Wrap-Up:

AIPINJ --
* Gun Vacuum Work -- Complete 3855763
** Vented Gun3 stub, checking valve seal -- no loss in
downstream pressure. 3855764
** Vented Y-chamber
** Vented Gun2 using double flapper valves
** NEG tube removed from Gun2
** New 10" gun flange with 10kV HV feedthrough for
biasing anode installed to Gun2, replacing previous one.
3855811
** Gun2 pumping back down. 3855811. Turbo cart and a
few ion pumps left attached and powered for now.
3855803
** Y-chamber and Gun3 stub readied for removal from
tunnel.

Log Number: 3855811Logbook(s): 

• POLOG
• ELOG

Body: 

Nice job. Attached pic shows the first installed object for this SAD, well at least through the plastic sheet, a shiny 10" flange on the HV chamber with a new 10kV HV feedthrough used to bias the anode, extends photocathode lifetime.

Log Number: 3855803Logbook(s): 

• POLOG
• ELOG

Body: 

After gun vacuum work was successfully completed, we tidied up the area and got almost all disconnects finished. Y chamber and gun 3 stub are ready to move, all cables pulled back. We still have a turbo cart attached and power for a couple ion pumps, so we'll need to coordinate disconnecting these just before installation moves the gun. We'll go over the plan tomorrow morning 9:00 in the tunnel.