Aggregator

Log Number: 4479129Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19 was successfully run for the North Linac on 2026-03-22 21:01:27. The application phase took 00:01:44 to complete.

Log Number: 4479128Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavities have been UnGSET 0:
1L19-5
Username: alexs
Date/Time: 03-22-26_20:56:16
RF Status: Good
Tuner Status: Good
Comment: UnGSET 0 - stepped on -100k - Backing out of 1A beam jitter check
Special Instructions:

Maintenance Tag: Component: Operator Entry - See SME

Log Number: 4479127Logbook(s): 

• BTLOG
• ELOG

Body: 

All the mechanics of the tool work, so I won't likely need beam for further testing. I still want to implement some data logging and usability features before I release it to the wild. If I need beam again, I'll submit another BSList.

For future planning: I took six points of data, which took around 20 minutes total. A bit more than 3 minutes per point, not spending a lot of time steering in between.

Log Number: 4479126Logbook(s): 

• ELOG

Entry Makers: alexsBody: 

Took setpoint and cycled, did not swap trim

Log Number: 4479125Logbook(s): 

• BTLOG
• ELOG

Entry Makers: dturnerBody: 

Log Number: 4479124Logbook(s): 

• BTLOG
• ELOG

Body: 

X and Y plane measurements here:
https://logbooks.jlab.org/entry/4479123
https://logbooks.jlab.org/entry/4479120

It's rather concerning that the measured Twiss is not as close to design as we would think...

Log Number: 4479123Logbook(s): 

• ELOG
• BTLOG

Body: IHA7E01 X-plane Emittance Measurement Analysis - BSList 119761
qsUtility Data Analyzer V7-34
SDDS FILE: /tmp/qsUtility_merge_datasets_cvJzvN
HOSTNAME: opsl02 CED WORKSPACE: OPS CED LOGIN KEY: pro

Log Number: 4479122Logbook(s): 

• ELOG
• BTLOG

Body: Emittance Measurement: IHA7E01 X-plane - BSList 119761
qsUtility zigzag_dataColletor V7-34
HOSTNAME: opsl02 CED WORKSPACE: OPS CED LOGIN KEY: pro

Log Number: 4479121Logbook(s): 

• ELOG

Entry Makers: alexsBody: 

Recovered without issue, but the archiver didn't catch the spike.

Log Number: 4479120Logbook(s): 

• ELOG
• BTLOG

Body: IHA7E01 Y-plane Emittance Measurement Analysis - BSList 119761
qsUtility Data Analyzer V7-34
SDDS FILE: /cs/prohome/apps/q/qsUtility/7-34/fileio/data/IHA7E01/IHA7E01_y_zigzag_2026-03-22_18:24:00/IHA7E01_zigzag_2026-03-22_18:24:00_qsUtility_analyzer.sdds
HOSTNAME: opsl02 CED WORKSPACE: OPS CED LOGIN KEY: pro

Log Number: 4479119Logbook(s): 

• ELOG
• BTLOG

Body: Emittance Measurement: IHA7E01 Y-plane - BSList 119761
qsUtility zigzag_dataColletor V7-34
HOSTNAME: opsl02 CED WORKSPACE: OPS CED LOGIN KEY: pro

Log Number: 4479118Logbook(s): 

• ELOG

Body: 

HYST AREA Version 7-0 has successfully cycled the following:

Area.Arcs.Arc1.Spreader
Area.Arcs.Arc1.Arc
Area.Arcs.Arc1.Recombiner
Area.Arcs.Arc1.Extraction
Area.Arcs.Arc3.Spreader
Area.Arcs.Arc3.Arc
Area.Arcs.Arc3.Recombiner
Area.Arcs.Arc3.Extraction
Area.Arcs.Arc5.Spreader
Area.Arcs.Arc5.Arc
Area.Arcs.Arc5.Recombiner
Area.Arcs.Arc5.Extraction
Area.Arcs.Arc7.Spreader
Area.Arcs.Arc7.Arc
Area.Arcs.Arc7.Recombiner
Area.Arcs.Arc7.Extraction
Area.Arcs.Arc9.Spreader
Area.Arcs.Arc9.Arc

Log Number: 4479117Logbook(s): 

• ELOG

Body: 

Mainly cavities 1, 2, and 3 seemed to be the ones affected. Cavities 1, and 2 go into SELA and Cavity 3 trips into SEL mode.

Log Number: 4479116Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: 

The following box supplies were CYCLED by version 2-16 of the Box Supply Cycling Script:
ARC1A Ramp Rate = 7.400 A/s
ARC3A Ramp Rate = 4.842 A/s
ARC5A Ramp Rate = 9.280 A/s
ARC7A Ramp Rate = 9.277 A/s
ARC9A Ramp Rate = 8.810 A/s
RSEP9A Ramp Rate = 4.865 A/s

Log Number: 4479115Logbook(s): 

• ELOG

Entry Makers: beneschBody: 

Mechanical stability of all the C75s is bad, not good. Relevant to lem.

Also, fudge seems to still be affecting the module even though it's now a C75, per Les. Does fudge not look at CED?

Log Number: 4479114Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: 

The following box supplies were CYCLED by version 2-16 of the Box Supply Cycling Script:
ARC7A Ramp Rate = 9.277 A/s

Log Number: 4479113Logbook(s): 

• ELOG

Body: 

HYST AREA Version 7-0 has successfully cycled the following:

Area.Linacs.South

Total Time: 3.150 mins

Log Number: 4479112Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19 was successfully run for the South Linac on 2026-03-22 19:02:04. The application phase took 00:00:15 to complete.

Log Number: 4479111Logbook(s): 

• BTLOG
• ELOG

Body: 

Correction:

betax = 5.842687483098144e+01
alphax = -3.170218005726008e+00
betay = 3.441060434634982e+00
alphay = 2.004727965892794e-01

Log Number: 4479110Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: 

FudgeIt 5.0 changed the South Linac fudge factor from 1.057 to 1.041.