Aggregator
Emittance Measurement: IHA0L03 Y-plane
Operator SIGN IN
Vacuum Group Summary 2026-02-20
Emittance Measurement: IHA0L03 Y-plane - need more points
IHA0L03 X-plane Emittance Measurement Analysis - BackPropagated with EPICS setpoints Bx=2.434897585387787e+01 ax=-5.979213387054019e+00
qsUtility Data Analyzer V7-34
SDDS FILE: /cs/prohome/apps/q/qsUtility/7-34/fileio/data/IHA0L03/IHA0L03_x_zigzag_2026-02-20_15:40:46/IHA0L03_zigzag_2026-02-20_15:40:46_qsUtility_analyzer.sdds
HOSTNAME: opsl02 CED WORKSPACE: OPS CED LOGIN KEY: pro
Emittance Measurement: IHA0L03 X-plane - Tweaked 0L01:0L02A quads
COMMENT ON Miscellaneous RF SAM work
2L02
After extensive troubleshooting in 2L02 to resolve the issue of the zone not going into IDLE. We discovered that we have a bad 3402 cable going from the CAMAC to the cross connect. The cable issue will be fixed on Monday so the zone can get certified by PSS and at first opportunity troubleshoot the initial AIB issues with 2L02.
RF Techs: Evonda V. Adam S. Gunner K. & Trey
I&C Tech: James D.
CREW CHIEF SIGN IN
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM
Date : 02-20-26
Time : 15:12:47
Day : Friday
Shift : Swing
Crew Chief : Richardson
Program Deputy: Buttles
Team : X
Arm : RADCON
Designated SSO: Schaumloffel
LERF Operator:
Operators : Schaumloffel
This stamp certifies that the above Crew Chief has read/reviewed/received the following:
COMMENT ON Copy of B68, B56 Installation
LCW System Dissolved Oxygen Readings
Dissolved oxygen sensors measuring West ARC, South LINAC, and East ARC are not functional and has not been able to be repaired. Replacement sensors installed read accurately for a day or so and then the reading drifts up. Dissolved oxygen levels have been measured with a portable sensor to verify de-oxygenation equipment is functioning properly. The existing dissolved oxygen sensor manufacturer has stated the dissolved oxygen sensors are being discontinued.
COMMENT ON SAM 2025 Portable ODH units deployment
2L04 not making it to HV
COMMENT ON Startup of Two Additional Central Chilled Water System Chillers and Associated Primary and Secondary Pumps and Final Commissioning
The subcontractor successfully completed testing of the revised chiller plant control system programming. Communication failures were simulated at both remote chilled water sensors and there were no rapid changes in secondary pump speed control nor significant increased secondary chilled water supply pressure. The system responded as expected maintaining stable system chilled water supply pressure and chiller plant equipment operation. Final commissioning is scheduled to begin Monday morning.
FSD Masking Tool: Successful System Masking for: BeamLossMonitor
HYST AREA 7-0 Cycles Magnets
Survey and Alignment work summary
RF On/Off turned RF On
BSList #118932: 0L02/0L03 BPM spectra vs time
Recorded 0L02 and 0L03 BPM spectra using the BPMSEE waveforms from EPICS for an hour to see if there's a correlation with the 0L02 BCM temperature cycle. The heater should be causing 60 Hz beam motion. Beam current to FC2 was 15 uA from A laser.
Within the resolution of this measurement, there's nothing there. I will try a few more things later (e.g., show lowpass-filtered time-domain data or RMS thereof vs time slice) but am not expecting a conclusive result.
Much better frequency resolution (though not necessarily lower noise floor) may be obtained with Tom's DAQ.










