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FFTs Spectra of Injector BPMs

21 hours 55 minutes ago
Log Number: 4490396Logbook(s): Entry Makers: suleimanBody: 

With 10 uA from Hall A laser to FC1 - Figure 1.
Figures 2-3: First three BPMs in Injector. There is the 20 kHz peak in x and y positions.

With 10 uA from Hall C laser to FC1.
Figure 4: First three BPMs in Injector. Very prominant peak at 28 kHz in all spectra.
Figure 5: with RTP OFF - no change.

With 10 uA from Hall B laser to PCup.
Figure 6: First three BPMs in Injector. Very prominant peak at 28 kHz in all spectra.

With 10 uA from Hall D laser to PCup.
Figure 7: First three BPMs in Injector. Overall noisy spectra.

Halls B and C show very large peak in wire-sum FFT at 28 kHz.

suleiman

COMMENT ON MCC NL LO RFoF Tx swap

21 hours 56 minutes ago
Log Number: 4490395Logbook(s): Body: 

No PTW is required. This task involves only reconnecting the fiber cable between two RFoF transmitters, which should take about 30 minutes to complete. If the Ops team thinks the gang phase issue has disappeared, this task will no longer be necessary.

plawski

Operator SIGN IN

22 hours 7 minutes ago
Log Number: 4490393Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Barker
DATE:             04/22/2026
SHIFT:               Day

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

HDR A.M Walks

22 hours 23 minutes ago
Log Number: 4490391Logbook(s): Entry Makers: BpauleyBody: 

Carried out visual and operational inspections in HDR. All systems are operating normal at this time.

cryo

CHL1-2 A.M Walks

22 hours 24 minutes ago
Log Number: 4490390Logbook(s): Entry Makers: BpauleyBody: 

Carried out visual and operational inspections in CHL1-2. Found ceiling lamp lens/cover is not secured properly & hanging by one hinge.

cryo

CREW CHIEF SIGN IN

22 hours 54 minutes ago
Log Number: 4490382Logbook(s): Body: 
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM

Date : 04-22-26
Time : 07:16:45
Day : Wednesday
Shift : Day

Crew Chief : Blackshaw
Program Deputy: Ogur
Team : E
Arm : RadCon
Designated SSO: Barker
LERF Operator:
Operators : Barker

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

QE Measurement

1 day ago
Log Number: 4490377Logbook(s): Body: Spot Location: (13250,19250), Charge: 17.908261999999993

Laser Wavelength Atten Setting Laser Power Current HV PS Current QE PV Updated? Update Time/Reason Not Updated (nm) (W) (uA)</
msmith

Operator SIGN IN

1 day 6 hours ago
Log Number: 4490371Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Smith
DATE:             04/21/2026
SHIFT:               Owl

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

Injector work summary

1 day 6 hours ago
Log Number: 4490369Logbook(s): Entry Makers: ywangBody: 

Set up the injector with 65uA to FC2, HWien = 0.0 deg, A1 = out, A2 = 4mm, laser A at 250 MHz:

Fig. 1: VWien = 0.0 deg, w/ no flip, allsave # 27027
Fig. 2: VWien = 90.0 deg, w/ flip right, allsave # 27024
Fig. 3: VWien = -90.0 deg, w/ flip right, allsave # 27025
Fig. 4: VWien = 90.0 deg, w/ flip left, allsave # 27026

Note: Injector is left with the Wiens off and no flip.

ywang

Shift Information

Shift Owl
CEBAF Program
MCC Crew Chief Deir
MCC Operators Smith
Program Deputy Sereno
Announcements

Access Status

Recent PSS History

recent pss history graph