Aggregator

2L03 Commissioning Swing Shift

1 day 9 hours ago
Log Number: 4473270Logbook(s): Entry Makers: powenBody: 

Emax completed on cav 7 and 8

Cavity 7:
High gradient not stable because of high oversaturation of probe signal. Able to reach ~18 MV/m with 3 kW, possibly more gradient with better control signal. Occasional WG Vacuum trips (~1/hr). No FE

Cavity 8:
Q_FPC = 1.40e7, Q_FP = 1.086e12
Emax 21 MV/m, strong FE of 20 R/hr, FE onset 13.5 MV/m
1-hour at Emax complete, no Tuner issues

Cavity 3:
Attempted to run +/- 15 kstep cycles, but ran into Abs Step limit

powen

IHA0L10 X-plane Emittance Measurement Analysis

1 day 9 hours ago
Log Number: 4473269Logbook(s): Body: IHA0L10 X-plane Emittance Measurement Analysis
qsUtility Data Analyzer V7-34
SDDS FILE: /cs/prohome/apps/q/qsUtility/7-34/fileio/data/IHA0L10/IHA0L10_x_zigzag_2026-02-26_21:55:06/IHA0L10_zigzag_2026-02-26_21:55:06_qsUtility_analyzer.sdds
HOSTNAME: opsl04 CED WORKSPACE: setup_345 CED LOGIN KEY: pro
samari

HarpFitter: IHA0L03

1 day 11 hours ago
Log Number: 4473264Logbook(s): Body: 

Comments:

Post Match download, on design values

Laser Used:

A Laser

Sigmas:

Peak 1 - x Sigma: 0.3301 Peak 2 - u Sigma: 0.2284 Peak 3 - y Sigma: 0.5995
samari

IHA0L03 Match Download

1 day 11 hours ago
Log Number: 4473262Logbook(s): Tags: Body: IHA0L03 Match Download

hostname: opsl04
CED workspace: setup_345
CED login_key: pro


CHANNELNEW VALUEOLD VALUEMQJ0L02.BDL-167.4812160.3000MQJ0L02A.BDL175.3767-154.4480MQJ0L03A.BDL-144.55660.0000MQJ0L03.BDL9.96320.0000
samari

IHA0L03 Multi-Matching Results - downloading match

1 day 11 hours ago
Log Number: 4473261Logbook(s): Body: IHA0L03 Multi-Matching Results - downloading match
HOSTNAME: opsl04 CED WORKSPACE: setup_345 CED LOGIN KEY: pro

Files saved to /cs/prohome/apps/q/qsUtility/7-34/fileio/multimatch_data/IHA0L03/IHA0L03_2026-02-26_20:43

Allow optimizer to change quad signs? YES

Start with present machine settings instead of design? NO

Best match was match1.log
samari

MOLLER Install Update 02/27/2026

1 day 13 hours ago
Log Number: 4473254Logbook(s): Tags: Entry Makers: jonesgaskelldwinesdougberdnikcipriankashyBody: 

Welding completed on pion donut. Lead wall anchors drilled and epoxied in dump area. Support anchors for pion donut drilled and epoxied in wall. Pictures to show progression of work in the Hall.

lhurt

NA01B07 trim rack BPS faulted off

1 day 13 hours ago
Log Number: 4473253Logbook(s): Entry Makers: victorcBody: 

Both the positive and negative bulk power supplies for this trim rack faulted off, dropping the rack. Possibly airflow fault. Brought bulk power supplies back up once, then they faulted off again. Supplies stayed on after the second attempt.

victorc

Shift Information

Shift Day
CEBAF Program
MCC Crew Chief Humphry
MCC Operators Janak
Program Deputy Schoene
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