Aggregator

Log Number: 4470139Logbook(s): 

• ELOG

Entry Makers: lrichardBody: 

Paged SSG; they answered and will investigate and solve the issue.

Log Number: 4470135Logbook(s): 

• ELOG
• SRFLOG

Body: 

2L03
- Both C75 girders reconnected to beamline
- Pump down and leak check passed
- NEG activated on 2L03 girder
- NEG activation scheduled for tomorrow for 2L04
- Pump carts scheduled for removal tomorrow

BSY
- VIP2C00A swapped
- Pre-leak check passed
- Final leak check tomorrow after pumping with cart overnight

Log Number: 4470133Logbook(s): 

• ELOG

Body: 

Additional FE onset measurements on 1L07 (Cav 8) and 1L22 (Cav 4) completed.

Log Number: 4470131Logbook(s): 

• ELOG

Body: 

Updates on C75/C100s

1L05 & 1L10 probes are not connected after plasma process attempts. Will connect them on Friday (next opportunity) and then they are good to go

1L09  You can do the  tests. All checked.

1L23 you can test all the cavities. HV may drop time to time.

1L24&25 are not PSS certified yet

1L26 cannot turn RF on with BL valves are closed.

Log Number: 4470128Logbook(s): 

• ELOG
• LERFLOG

Body: 
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM

Date : 02-11-26
Time : 15:29:45
Day : Wednesday
Shift : Swing

Crew Chief : Richardson
Program Deputy: Mock
Team : X
Arm : RADCON
Designated SSO: Anthony
LERF Operator:
Operators : Anthony

This stamp certifies that the above Crew Chief has read/reviewed/received the following:

Log Number: 4470124Logbook(s): 

• ELOG

Body: 

Attempted to reconnect RF waveguides to penetrations, but found half height waveguides and penetration waveguides transversely misaligned by ~1.25 inches (penetration waveguides have been clamped with strain relief bars since before removal, so we are reasonably confident they have not drifted). Work paused until tomorrow to confer with SRF.

Log Number: 4470123Logbook(s): 

• ELOG

Body: 

BSY Hall B VIP2C00A changed-out, New 25 l/s IP installed, Pre-Leak Check = Good; will continue to Pump with Turbo Pump Cart overnight, with Final Leak Check tomorrow and also Start-up of VIP's.

Log Number: 4470121Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavities have been unbypassed:
1L06-3
Username: michaelm
Date/Time: 02-11-26_15:07:27
RF Status: Good
Tuner Status: Good
Comment: Unbypassed - stepped on -100k - test
Special Instructions:

Maintenance Tag: Component: Other

Log Number: 4470117Logbook(s): 

• ELOG

Body: 

2L04A - Girder installed pumped down and leak check = good. Neg pump will be activated tomorrow. Currently pumping with turbo pump cart. Will disconnect turbo pump cart and remove clean room tomorrow.

Log Number: 4470115Logbook(s): 

• ELOG

Body: 

2L03A - Girder installed pumped down and leak check = good. Neg pump activated and gate valve opened. Currently pumping with turbo pump cart. Will disconnect turbo pump cart and remove clean room tomorrow.

Log Number: 4470114Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavities have been GSET 0:
1L04-8
Username: michaelm
Date/Time: 02-11-26_14:47:55
RF Status: Good
Tuner Status: Bad
Comment: GSET 0 - stepped off +100k - Not seeing frequency response; check w tuning cart
Special Instructions: Leave tuner in manual

Maintenance Tag: Component: Other

Log Number: 4470113Logbook(s): 

• ELOG
• SRFPLASMA

Body: 

Please update this ATLis with a list of which zones will next require a DecaRad setup.
Please also update the list when a tested zone's FE data has been analyzed and validated, and its DecaRad can be removed.
Systems are currently set up on 1L07, 1L09, 1L22.
Up next?- 1L05, 1L10, 1L23, 1L24, 1L25.

Log Number: 4470110Logbook(s): 

• ELOG

Body: 

correction on last entry, OM01 was the head addressed, not OM04 in hall C.

Log Number: 4470106Logbook(s): 

• ELOG

Body: 

OM04 in hall C was trending towards alarm. we were able to tune it before it triggered. overlapping heads confirmed no real ODH event.

Log Number: 4470103Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavities have been unbypassed:
1L04-8
Username: michaelm
Date/Time: 02-11-26_14:22:05
RF Status: Good
Tuner Status: Good
Comment: Unbypassed - stepped on -100k - Test; tuner moved freely warm and was cooled with exerciser
Special Instructions: Leave tuner in manual

Maintenance Tag: Component: Other

Log Number: 4470102Logbook(s): 

• ELOG
• INCLOG

Body: 

Fixed analog connector for VIP3C01, due to it ready "railed". Now showing correct readback.
Installed new Ion Pak for VIP2C00A in preparation for pump down of the beamline to finish tomorrow.

Log Number: 4470099Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavities have been GSET 0:
1L04-7
Username: michaelm
Date/Time: 02-11-26_14:16:42
RF Status: Bad
Tuner Status: Good
Comment: GSET 0 - stepped off +100k - Very weak power output. 2.5W amp or RFCM?
Special Instructions:

Maintenance Tag: Component: 2.5W Amp

Log Number: 4470098Logbook(s): 

• ELOG

Entry Makers: michaelmBody: 

Klystron looks okay; perhaps 2.5W amp or insufficient output from the RFCM?

Log Number: 4470097Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavities have been GSET 0:
1L04-6
Username: michaelm
Date/Time: 02-11-26_14:11:00
RF Status: Bad
Tuner Status: Bad
Comment: GSET 0 - stepped off +100k - Acting odd; quenching at any gradient; check with tuning cart
Special Instructions:

Maintenance Tag: Component: Other

Log Number: 4470096Logbook(s): 

• SRFLOG
• ELOG
• RFLOG

Entry Makers: bjacobBody: