Recent Log Entries

Log Number: 4008530Logbook(s): 

• ELOG
• LERFLOG

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

Date : 06-28-22
Time : 23:29:21
Day : Tuesday
Shift : Owl

Crew Chief : Forman
Program Deputy: Wang
Team : X
Arm : Price
Designated SSO: Deir
LERF Operator:
Operators : Deir, Price, Schoene

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

Log Number: 4008529Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl06

Saved: eforman 06-28-22 23:27:19 {A:2 B:5 C:5 E:1047 A=BS B=BS C=BS D=BS 0R08=0.00 No dumps in.

Log Number: 4008528Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: Orbit checks (Quad Centering)

Log Number: 4008527Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

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

Log Number: 4008520Logbook(s): 

• ELOG

Entry Makers: kernsBody: 

Need to bring this cavity up to check tuning. Looks like something went out with drive and RF on and off and gask railing. CRFP spiking to 6.5KW will shut it down. Need to see if tuner is EERR and if so, how was the cavity detuned ?!!!

Log Number: 4008519Logbook(s): 

• ELOG

Body: ACC=>VACUUM=>EAST_ARC=>ARC7=>VIP7S03A has been enabled in alarm handler

Vacuum stable

Log Number: 4008518Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System UN-Masking for: BeamLossMonitor
User: mmerz

Log Number: 4008517Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System Masking for: BeamLossMonitor
User: mmerz
Areas: All

BeamLossMonitor Devices:
ILM0I07
ILM0L01A
ILM0L01B
ILM0L02
ILM2D00A
ILM2D00B
ILM0L04A
ILM0L04B
ILM0L05
ILM0L06A
ILM0L08
ILM0R01
ILM4D00
ILM0R03
ILM0R04
ILM0R06
ILM0R08
ILM0R09
ILM1L01
ILM1L02
ILM6R08
ILM3S00
ILM7S00
ILM9S00
ILM5S10
ILM5E03
ILM7S01
ILM9A01
ILM3E02
ILM5A01
ILM1A04
ILM1A06
ILM1A09
ILM5A10
ILM1A16
ILM1A19
ILM3R10
ILM9R07
ILM1R09
ILM2L03
ILM5R10
ILM5R05
ILM2L01
ILM2T09
ILM8T09<

Log Number: 4008516Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System UN-Masking for: BeamLossMonitor
User: mmerz

Log Number: 4008515Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System Masking for: BeamLossMonitor
User: mmerz
Areas: All

BeamLossMonitor Devices:
ILM0I07
ILM0L01A
ILM0L01B
ILM0L02
ILM2D00A
ILM2D00B
ILM0L04A
ILM0L04B
ILM0L05
ILM0L06A
ILM0L08
ILM0R01
ILM4D00
ILM0R03
ILM0R04
ILM0R06
ILM0R08
ILM0R09
ILM1L01
ILM1L02
ILM6R08
ILM3S00
ILM7S00
ILM9S00
ILM5S10
ILM5E03
ILM7S01
ILM9A01
ILM3E02
ILM5A01
ILM1A04
ILM1A06
ILM1A09
ILM5A10
ILM1A16
ILM1A19
ILM3R10
ILM9R07
ILM1R09
ILM2L03
ILM5R10
ILM5R05
ILM2L01
ILM2T09
ILM8T09<

Log Number: 4008513Logbook(s): 

• ELOG

Body: 

HYST AREA Version 6-2-4 has successfully cycled the following:

Area.Linacs.North

Total Time: 3.083 mins

Log Number: 4008511Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.14 was successfully run for the North Linac on Tue Jun 28 22:47:56 2022. The application phase took 0:00:19 to complete.

Log Number: 4008510Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavities have been GSET 0:
1L18-8
Username: mock
Date/Time: 06-28-22_22:47:28
RF Status: Bad
Tuner Status: Good
Comment: GSET 0 - stepped off +100k - Tuning sometimes after trips. Throws energy lock off. Tried open loop tuning.
Special Instructions:

Log Number: 4008512Logbook(s): 

• HDLOG
• ELOG

Tags: 

• HarpScan
• Beamline

Body: 

This must be the plots the shift crew used for the beam size extrapolation tool in the log entry https://logbooks.jlab.org/entry/4008491 . I did not see the log entry from the scan itself. There are plots from this radiator harp scan using different detectors that look worse.
There is large halo background to start with, on the level of 1%, and in addition to that the x-width is either too wide or there is a shoulder on the beam left side. The shoulder seems to be worse when uaing the most upstream TAGH detectors, meaing more low energy particles on the beam-left side of the main beam.

Log Number: 4008507Logbook(s): 

• ELOG

Entry Makers: mmerzBody: 

Log Number: 4008506Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System UN-Masking for: BeamLossMonitor
User: mmerz

Log Number: 4008505Logbook(s): 

• ELOG

Entry Makers: mmerzBody: 

Log Number: 4008504Logbook(s): 

• ELOG

Body: /cs/jtabs/edm/twiddle/trimscreen/2031808207012335189/2022-06-28_22.22.14-mmerz: Twiddle Diffs - moved 8E02H back to 5.5
Differences between values from Twiddle Save
, ,
and present readbacks:

Log Number: 4008502Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System Masking for: BeamLossMonitor
User: mmerz
Areas: All

BeamLossMonitor Devices:
ILM0I07
ILM0L01A
ILM0L01B
ILM0L02
ILM2D00A
ILM2D00B
ILM0L04A
ILM0L04B
ILM0L05
ILM0L06A
ILM0L08
ILM0R01
ILM4D00
ILM0R03
ILM0R04
ILM0R06
ILM0R08
ILM0R09
ILM1L01
ILM1L02
ILM6R08
ILM3S00
ILM7S00
ILM9S00
ILM5S10
ILM5E03
ILM7S01
ILM9A01
ILM3E02
ILM5A01
ILM1A04
ILM1A06
ILM1A09
ILM5A10
ILM1A16
ILM1A19
ILM3R10
ILM9R07
ILM1R09
ILM2L03
ILM5R10
ILM5R05
ILM2L01
ILM2T09
ILM8T09<

Log Number: 4008497Logbook(s): 

• ELOG

Body: 

Channels: MQC2A21M, MQC2A21.STAT, MQC2A21.BDL