Aggregator

High NA Rack Room Temps - Propped Open Rack Room Door

3 days 7 hours ago
Log Number: 4495307Logbook(s): Entry Makers: deirBody: 

Contacted DC Power. They said if the temps don't come down then to turn off the racks. In lieu of contacting facilities, I went out to the rack room to prop open the door to see if it helped.

There was also a fan conveniently inside. I turned it on and placed it by the doorway.

Temps are coming down quickly.

deir

Operator SIGN IN

3 days 7 hours ago
Log Number: 4495305Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Samari
DATE:             05/06/2026
SHIFT:               Owl

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

smartRAT Cavity Instability Detection Daily Report

3 days 7 hours ago
Log Number: 4495292Logbook(s): Entry Makers: dturnerBody: smartRAT V3-4 on opsrfdaqnl1

To view waveforms from a timestamp:

ssh opsrfdaqnl1 "smartRAT -m DAQ -d /data/fast_daq/<timestamp>"


To view waveforms of the top 25 from this report:

ssh opsrfdaqnl1 "smartRAT_view_daily_top25 2026-04-28-2026-05-05"


Data directory: /cs/prohome/apps/s/smartRAT2/3-4/fileio/pca_data/output_cavityOutDet/calibrated_cavitylevel_centralize_tsfresh_minimal_gmespmes/whole/rcntnp/2026-04-28-2026-05-05/PCA/
dturner

CREW CHIEF SIGN IN

3 days 7 hours ago
Log Number: 4495284Logbook(s): Body: 
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM

Date : 05-05-26
Time : 23:41:49
Day : Tuesday
Shift : Owl

Crew Chief : Deir
Program Deputy: Sereno
Team : A
Arm : Smith
Designated SSO: Samari
LERF Operator:
Operators : Samari, Smith

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

FSD Masking Tool: Successful System UN-Masking for: BeamLossMonitor

3 days 8 hours ago
Log Number: 4495277Logbook(s): Tags: Body: System UN-Masking for: BeamLossMonitor
User: alexs
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
ILM8T
alexs

iCalibrate: Hall C

3 days 8 hours ago
Log Number: 4495276Logbook(s): Body: Calibration ParametersHall:CTarget: 10cm_DummyPass: 2Note: File generated from archiverCalibrated On:2026-May-03 00:00Calibrated By: deirFile:C-2026-05-03_0000_10cm_Dummy_Pass-2_archiver_generated.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)
shriner

FSD Masking Tool: Successful System Masking for: BeamLossMonitor

3 days 8 hours ago
Log Number: 4495271Logbook(s): Tags: Body: System Masking for: BeamLossMonitor
User: alexs
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<
alexs

Elevated upstream halo rates in Hall B line after injector work. Setting up tagger running to resteer hall line.

3 days 8 hours ago
Log Number: 4495261Logbook(s): Entry Makers: alexsBody: 

Halo rates in Hall B continue to be a bugbear. Restored beam after injector work shows greatly elevated upstream halo rates. Attempts to adjust the angle with steering to the 2C21A nanoamp BPMs yielded no joy. Even after removing their collimator (figure 2), rates are still well above where they were earlier in the day. Returning to running to the tagger to resteer the line.

alexs

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Shift Day
CEBAF Program
MCC Crew Chief Humphry
MCC Operators Blackshaw, Janak
Program Deputy Drury
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