Aggregator

Log Number: 4281910Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System Masking for: IonChamber
User: kprice
Areas: HallA

IonChamber Devices:
IIC1H00
IIC1H05
IIC1H04A
IICD107
IICD107A
IIC1P03
IIC1H04B

Log Number: 4281852Logbook(s): 

• ELOG

Entry Makers: kpriceBody: 

Switched Hall A to tune mode to do touch-up steering in the 1C line. Dropped the attenuator, switched mode from CW to tune, beam started flickering just like we saw before in Hall C. I beam sync'd the A laser and let it sit for about 30 seconds before trying tune mode again. Stable for now, but worrying.

Log Number: 4281849Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl632

Saved: victorc 04-18-24 00:23:17 {A:2 B:5 C:3 E:1047 A=CW B=CW C=CW D=BS 0R08=8.73 No dumps in. Start of owl shift. xA: 5, xB: 75, xC: 4. FFB off.

Log Number: 4281838Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Schaumloffel
DATE:             04/18/2024
SHIFT:               Owl

The operator has read the following:

Log Number: 4281837Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause13088Title:
Hall A setup

Summary:
Done with the main machine Optics tuning spill over. Now need to perform beam delivery procedure and setup Hall A. They are scheduled to be taking beam by now.

Log Number: 4281834Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Chaudhary
DATE:             04/18/2024
SHIFT:               Owl

The operator has read the following:

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

Log Number: 4281829Logbook(s): 

• HALOG
• ELOG

Entry Makers: kpriceBody: 

Ion chambers have been set empirically to values as conservative as possible without causing nuisance trips. IC rates, beam current, and beam positions down the 1C line are stable.

I suspect the BPM and ion chamber sampling rate interacts noticeably with the 3x3 raster, appearing as waves in the readbacks. The lock is compensating well, however it's possible that it's overreactive to the large beam.

Log Number: 4281805Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: 

Log Number: 4281804Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: 

Log Number: 4281803Logbook(s): 

• HALOG
• ELOG

Entry Makers: kpriceBody: 

Dump left is functional, per ops restrictions we may mask the other dump IC if it causes problems.

Log Number: 4281801Logbook(s): 

• ELOG
• RFLOG

Entry Makers: jhowardBody: 

Log Number: 4281799Logbook(s): 

• ELOG
• LERFLOG

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

Date : 04-17-24
Time : 23:23:47
Day : Wednesday
Shift : Owl

Crew Chief : Price
Program Deputy: Gal
Team : D
Arm : RADCON
Designated SSO: Schaumloffel
LERF Operator:
Operators : Schaumloffel, Chaudhary

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

Log Number: 4281796Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: A2: setup;
B5: 75nA on LD2+Cu;

Log Number: 4281795Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

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

Log Number: 4281785Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: UNMasked Hall A Target Movement FSD

Log Number: 4281783Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Masked Hall A Target Movement FSD

Log Number: 4281778Logbook(s): 

• ELOG

Entry Makers: emonkBody: 

Corrections to path-length using the B laser.

Log Number: 4281776Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: UNMasked Hall A Target Movement FSD

Log Number: 4281773Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Masked Hall A Target Movement FSD

Log Number: 4281772Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: UNMasked Hall A Target Movement FSD