Aggregator

Log Number: 4481243Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System Masking for: CryoModule
User: victorc
Areas: All

CryoModule Devices:
0L02
0L04
0L03
1L14
1L03
1L02
1L04
1L05
1L07
1L06
1L08
1L09
1L10
1L11
1L12
1L15
1L13
1L16
1L19
1L17
1L18
1L20
1L21
1L22
1L23
1L24
1L25
1L26
2L14
2L03
2L02
2L04
2L05
2L07
2L06
2L08
2L11
2L09
2L10
2L12
2L15
2L13
2L16
2L19
2L17
2L18
2L20
2L21
2L22
2L23
2L24
2L25
2L26

Log Number: 4481240Logbook(s): 

• DCLOG
• ELOG

Entry Makers: victorcBody: 

Log Number: 4481195Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: 

Comment: before NL GP correction
Beam Conditions:
Total Linac Current (R2XXITOT) = 1.02
Hall A Current (IBC1H04CRCUR2) = 0
Hall B Current (IPM2C24A.IENG) = 0.111943
Hall C Current (IBC3H00CRCUR4) = 0.51
Hall D Current (IBCAD00CRCUR6) = 1.5
BSY Current (IBC4C00CRCUR5) = 0
INJ Energy (MMSINJEGAIN) = 38.9312
NL Energy (MMSLIN1EGAIN) = 345
SL Energy (MMSLIN2EGAIN) = 345

Gradient Problems:
0L02-7 Klystron Cathode Current (KCCU)=0.00396729 (<=0.7A)
0L03-1 Local Oscillator Power (LOPW)=57.3 (<=70mW)
1L04-8 GLDER=203 (>=200) with RF OFF - Check Detuning
1L06-1 GLDER=462 (>=200) with RF OFF - Check D

Log Number: 4481181Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

Comment: before NL GP correction
Beam Conditions:
Total Linac Current (R2XXITOT) = 1.02
Hall A Current (IBC1H04CRCUR2) = 0
Hall B Current (IPM2C24A.IENG) = 0.112046
Hall C Current (IBC3H00CRCUR4) = 0.51
Hall D Current (IBCAD00CRCUR6) = 0
BSY Current (IBC4C00CRCUR5) = 0
INJ Energy (MMSINJEGAIN) = 38.9312
NL Energy (MMSLIN1EGAIN) = 345
SL Energy (MMSLIN2EGAIN) = 345

Gradient Problems:
0L02-7 Klystron Cathode Current (KCCU)=0.00384521 (<=0.7A)
0L03-1 Local Oscillator Power (LOPW)=57.4 (<=70mW)
1L06-1 GLDER=455 (>=200) with RF OFF - Check Detuning
1L07-1 Local Oscillator Power (LOPW)=14.1992 (<=

Log Number: 4481175Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

Comment: before NL GP correction
Beam Conditions:
Total Linac Current (R2XXITOT) = 1.02
Hall A Current (IBC1H04CRCUR2) = 0
Hall B Current (IPM2C24A.IENG) = 0.112354
Hall C Current (IBC3H00CRCUR4) = 0.54
Hall D Current (IBCAD00CRCUR6) = 0
BSY Current (IBC4C00CRCUR5) = 0
INJ Energy (MMSINJEGAIN) = 38.9312
NL Energy (MMSLIN1EGAIN) = 345
SL Energy (MMSLIN2EGAIN) = 345

Gradient Problems:
0L02-7 Klystron Cathode Current (KCCU)=0.00384521 (<=0.7A)
0L03-1 Local Oscillator Power (LOPW)=57.4 (<=70mW)
1L06-1 GLDER=462 (>=200) with RF OFF - Check Detuning
1L07-1 Local Oscillator Power (LOPW)=12.5061 (<=

Log Number: 4481150Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

Comment: before NL GP correction
Beam Conditions:
Total Linac Current (R2XXITOT) = 1.02
Hall A Current (IBC1H04CRCUR2) = 0
Hall B Current (IPM2C24A.IENG) = 0.111943
Hall C Current (IBC3H00CRCUR4) = 0.51
Hall D Current (IBCAD00CRCUR6) = 0
BSY Current (IBC4C00CRCUR5) = 0
INJ Energy (MMSINJEGAIN) = 38.9312
NL Energy (MMSLIN1EGAIN) = 345
SL Energy (MMSLIN2EGAIN) = 345

Gradient Problems:
0L02-7 Klystron Cathode Current (KCCU)=0.00390625 (<=0.7A)
0L03-1 Local Oscillator Power (LOPW)=57.2 (<=70mW)
1L04-8 GLDER=200 (>=200) with RF OFF - Check Detuning
1L06-1 GLDER=456 (>=200) with RF OFF - Check Det

Log Number: 4481146Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

Comment: before NL GP correction
Beam Conditions:
Total Linac Current (R2XXITOT) = 1.02
Hall A Current (IBC1H04CRCUR2) = 0
Hall B Current (IPM2C24A.IENG) = 0.112611
Hall C Current (IBC3H00CRCUR4) = 0.51
Hall D Current (IBCAD00CRCUR6) = 0
BSY Current (IBC4C00CRCUR5) = 0
INJ Energy (MMSINJEGAIN) = 38.9312
NL Energy (MMSLIN1EGAIN) = 345
SL Energy (MMSLIN2EGAIN) = 345

Gradient Problems:
0L02-7 Klystron Cathode Current (KCCU)=0.00372314 (<=0.7A)
0L03-1 Local Oscillator Power (LOPW)=57.4 (<=70mW)
1L04-8 GLDER=206 (>=200) with RF OFF - Check Detuning
1L06-1 GLDER=453 (>=200) with RF OFF - Check Det

Log Number: 4481124Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

Beam Conditions:
Total Linac Current (R2XXITOT) = 1.02
Hall A Current (IBC1H04CRCUR2) = 0
Hall B Current (IPM2C24A.IENG) = 0.112405
Hall C Current (IBC3H00CRCUR4) = 0.51
Hall D Current (IBCAD00CRCUR6) = 0
BSY Current (IBC4C00CRCUR5) = 0
INJ Energy (MMSINJEGAIN) = 38.9312
NL Energy (MMSLIN1EGAIN) = 345
SL Energy (MMSLIN2EGAIN) = 345

Gradient Problems:
0L02-7 Klystron Cathode Current (KCCU)=0.00390625 (<=0.7A)
0L03-1 Local Oscillator Power (LOPW)=57.3 (<=70mW)
1L04-8 GLDER=206 (>=200) with RF OFF - Check Detuning
1L06-1 GLDER=457 (>=200) with RF OFF - Check Detuning
1L07-1 Local Oscillator Pow

Log Number: 4481111Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

Beam Conditions:
Total Linac Current (R2XXITOT) = 1.02
Hall A Current (IBC1H04CRCUR2) = 0
Hall B Current (IPM2C24A.IENG) = 0.111121
Hall C Current (IBC3H00CRCUR4) = 0.51
Hall D Current (IBCAD00CRCUR6) = 0
BSY Current (IBC4C00CRCUR5) = 0
INJ Energy (MMSINJEGAIN) = 38.9312
NL Energy (MMSLIN1EGAIN) = 345
SL Energy (MMSLIN2EGAIN) = 345

Gradient Problems:
0L02-7 Klystron Cathode Current (KCCU)=0.00396729 (<=0.7A)
0L03-1 Local Oscillator Power (LOPW)=57.1 (<=70mW)
1L04-8 GLDER=204 (>=200) with RF OFF - Check Detuning
1L06-1 GLDER=456 (>=200) with RF OFF - Check Detuning
1L07-1 Local Oscillator Pow

Log Number: 4481103Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

Beam Conditions:
Total Linac Current (R2XXITOT) = 1.02
Hall A Current (IBC1H04CRCUR2) = 0
Hall B Current (IPM2C24A.IENG) = 0.110505
Hall C Current (IBC3H00CRCUR4) = 0.51
Hall D Current (IBCAD00CRCUR6) = 1.5
BSY Current (IBC4C00CRCUR5) = 0
INJ Energy (MMSINJEGAIN) = 38.9312
NL Energy (MMSLIN1EGAIN) = 345
SL Energy (MMSLIN2EGAIN) = 345

Gradient Problems:
0L02-7 Klystron Cathode Current (KCCU)=0.00402832 (<=0.7A)
0L03-1 Local Oscillator Power (LOPW)=57.2 (<=70mW)
1L04-8 GLDER=201 (>=200) with RF OFF - Check Detuning
1L06-1 GLDER=459 (>=200) with RF OFF - Check Detuning
1L06-6 Gradient Loop Dete

Log Number: 4481100Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Price
DATE:             03/29/2026
SHIFT:               Owl

The operator has read the following:

• ELOG
• PD Shift Plan
• Radiation Surveys for PSS Segments in Controlled Access
• PSS Log

Log Number: 4481098Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl632

Saved: victorc 03-29-26 00:07:27 {A:i B:5 C:2 E:345 A=BS B=BS C=CW D=BS 0R08=0.48 No dumps in.

Log Number: 4481097Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Chaudhary
DATE:             03/28/2026
SHIFT:               Owl

The operator has read the following:

• ELOG
• PD Shift Plan
• Radiation Surveys for PSS Segments in Controlled Access
• PSS Log

Log Number: 4481096Logbook(s): 

• ELOG

Entry Makers: jhowardBody: 

Saw the 1A beam spot slide out, and I got a smartRAT file while it was happening: /a/opsuser/jhoward/2026-03-28_23_46_35.

I don't see anything that can identify what caused it, and I agree with what swing shift said, that whatever is causing this is happening too slow for it to be caught. The file came from the second shift.

Log Number: 4481083Logbook(s): 

• ELOG
• LERFLOG

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

Date : 03-28-26
Time : 23:10:00
Day : Saturday
Shift : Owl

Crew Chief : Howard
Program Deputy: Malace
Team : D
Arm : Chaudhary
Designated SSO: Price
LERF Operator:
Operators : Price, Chaudhary

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

Log Number: 4481082Logbook(s): 

• ELOG

Entry Makers: yoonBody: 

came back up without issue

Log Number: 4481081Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: CW to Hall C.

Log Number: 4481080Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

Body:  Accelerator PHYSICS STUDIES RESTORE ACC DOWN OFF (SAM) Planned 8 0 0

Log Number: 4481074Logbook(s): 

• ELOG

Entry Makers: yoonBody: 

have been making adjustments since the hall came back up an hr ago

Log Number: 4481073Logbook(s): 

• ELOG

Entry Makers: bschaumlBody: 

Noted the 1A SLM smearing over the course of approximately 5 minutes and ran the rfmldaqSnapshot command as instructed in the linked log. I didn't see any obvious phase related issues. These kinds of effects do seem to be on the order of minutes rather than the seconds that smartRAT reports. Anyhow, the data is in a folder in my home directory: /a/opsuser/bschauml/2026-03-28_22_01_20/ Swinging the gangphase by about -3 degrees rounded up the SLM.