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Operator SIGN IN

1 day 7 hours ago
Log Number: 4490273Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Anthony
DATE:             04/21/2026
SHIFT:               Swing

The operator has read the following:
  • ELOG
  • PD Shift Plan
  • Radiation Surveys for PSS Segments in Controlled Access
  • PSS Log
anthony

1L12 CPS 480 Vac safe out Issue

1 day 7 hours ago
Log Number: 4490272Logbook(s): Body: 

Following the AESRF CPS SOP for safe out of 480 Vac a fault was detected. During lock out at the MDP of the 480 Vac to the CPS the Panduit AVT and the VVU detected a fault that indicated an unsafe condition. At the start of the safe out, all indications are normal on the AVT and VVU. After the breaker is opened at the MDP there is a fault indicated on the AVT, which is two flashes of the indicator. The VVU indicates a fault on the B and C phases. This issue needs to be addressed before Hi-pot testing of the Macro Magnetics transformer can be done. Techs: G. Kepler, A.

holben

2L13-8 Unstable Deta/CRFP

1 day 7 hours ago
Log Number: 4490265Logbook(s): Entry Makers: kernsBody: 

Tried to OLT when we got to Power Permit and found tuners not tuning with gradient at ~.72 Mv/m with CRFP at 590w . Stepping it 50k in either direction and don't see the tuners moving. This could be a tuner motor stepper camac card or bad/broken tuner motor or torque adapter on tuner on the cryo-module cavity downstairs. Requires further troubleshooting with access for troubleshooting downstairs while tuning from screens or SRF motor stepper test box.

kerns

iocsoftw4spce restored

1 day 7 hours ago
Log Number: 4490262Logbook(s): Tags: Body: restorelib 3.0.1 Target restore date was 2026-04-21 15:22:55 The output from the myRestore execution was as follows: iocsoftw4spce systemEnum@2026-04-21 15:22 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -i iocsoftw4spce (success) PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 Procedure return status: Success
alarms

CREW CHIEF SIGN IN

1 day 7 hours ago
Log Number: 4490261Logbook(s): Body: 
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM

Date : 04-21-26
Time : 15:24:35
Day : Tuesday
Shift : Swing

Crew Chief : Price
Program Deputy: Ogur
Team : C
Designated SSO: Anthony
LERF Operator:
Operators : Anthony

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

COMMENT ON Tasks required for testing YBBS06 install and integration to the ARC7 Magnet string

1 day 8 hours ago
Log Number: 4490258Logbook(s): Body: 

DC Power has now completed all tasks up to #11. DCP verified the LCW flow at the magnet before all testing. We hi-potted the isolated magnet to 1.35 kV DC, with a maximum leakage current of 510 μA. Resistance and inductance measurements were performed and are attached to this ATLis. YBBS06 shunt leads were reconnected to the magnet, and current was driven through the magnet using a benchtop power supply to verify shunt operation. We verified shunt operation by setting the module setpoint and driving the module. Everything was as expected and operational.

kevino

iocsb4b restored

1 day 8 hours ago
Log Number: 4490247Logbook(s): Tags: Body: restorelib 3.0.1 Target restore date was 2026-04-21 14:29:34 The output from the myRestore execution was as follows: iocsb4b systemEnum@2026-04-21 14:29 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -i iocsb4b (success) PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 Procedure return status: Success
alarms

2L09-6 LOPW was varying

1 day 8 hours ago
Log Number: 4490246Logbook(s): Entry Makers: kernsBody: 

LOPW was varying between ~160mw and 260 mw. Replaced RFCM to correct LOPW and restored and optimized cavity RF at ODVH= 10Mv/m.

kerns

Shift Information

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CEBAF Program
MCC Crew Chief Richardson
MCC Operators Anthony
Program Deputy Ogur
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