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Detailed Mott setup, part 2 (Mott measurement)

1 day 1 hour ago
Log Number: 4473637Logbook(s): Entry Makers: brukerBody: 

Enable Mott detector PMTs:
Mott screen - Expert screens button - Mott HV screen.
There, hit the "ON" button. The voltage readbacks should match the sliders, Figure 3.

Mott data taking:

> ssh -Y idaq@opsmdaq1
> startCoda

You will get three terminal windows as well as the Run Control GUI shown in Figure 1.
1. Control - Connect
2. Wrench/screwdriver button ("Configure")
3. Floppy disk button ("Download")
4. Start/pause button ("Prestart").
A dialog box will appear asking for a description of the run. Enter whatever makes sense and click the "CLICK HERE" button at the bottom.
5.

bruker

HWien calibration data

1 day 1 hour ago
Log Number: 4473636Logbook(s): Entry Makers: brukerBody: 

VWien 0
MFG1I04 = +/-

10129: HWien 0, IHWP OUT
Mott Asym UD (%) = 0.476972 +/- 0.216187
Mott Asym LR (%) = 0.111519 +/- 0.220878

10130: FSD trip due to 0L03

10131: HWien 0, IHWP IN
Mott Asym UD (%) = -0.17852 +/- 0.214657
Mott Asym LR (%) = -0.174293 +/- 0.217397

10132: HWien +30, IHWP OUT
Mott Asym UD (%) = -17.4526 +/- 0.411299
Mott Asym LR (%) = 0.263716 +/- 0.419415

10133: HWien +30, IHWP IN
Mott Asym UD (%) = 17.2117 +/- 0.490517
Mott Asym LR (%) = 0.519967 +/- 0.502233

10134: HWien +50, IHWP OUT
Mott Asym UD (%) = -27.2715 +/- 0.434287
M

bruker

Operator SIGN IN

1 day 4 hours ago
Log Number: 4473605Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Schaumloffel
DATE:             02/28/2026
SHIFT:               Swing

The operator has read the following:
bschauml

We should pull the 5D trim cards

1 day 4 hours ago
Log Number: 4473604Logbook(s): Entry Makers: eformanBody: 

If there are no plans to run to the 5D dump in the near future, we should pull the 5D trim cards to avoid deleterious effects on the adjacent beamline should these magnets be inadvertently loaded with non-zero currents. See the attached log entry.

eforman

CREW CHIEF SIGN IN

1 day 5 hours ago
Log Number: 4473596Logbook(s): Body: 
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM

Date : 02-28-26
Time : 15:08:21
Day : Saturday
Shift : Swing

Crew Chief : Forman
Program Deputy: Schoene
Team : F
Arm : RADCON
Designated SSO: Schaumloffel
LERF Operator:
Operators : Schaumloffel

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

Polarization with A and D, and PITA dependency

1 day 5 hours ago
Log Number: 4473593Logbook(s): Entry Makers: brukerBody: 

VWien = +90, flipper compensated, HWien = 0.
Helicity control: quartet, 8 windows delay; this means 2 patterns delay.

#10119: A laser, IHWP OUT
Mott Asym UD (%) = -1.30706 +/- 0.260153
Mott Asym LR (%) = -34.3625 +/- 0.249947

#10120: A laser, IHWP IN
Mott Asym UD (%) = 0.701802 +/- 0.284461
Mott Asym LR (%) = 34.5801 +/- 0.27067

Total LR: (34.5 +/- 0.2) %

#10121: D laser, IHWP OUT
Mott Asym UD (%) = 1.3372 +/- 0.278168
Mott Asym LR (%) = 35.4552 +/- 0.268877

#10122: D laser, IHWP IN
Mott Asym UD (%) = -1.42337 +/- 0.268154
Mott Asym LR (%) = -34.14

bruker

Operator SIGN IN

1 day 12 hours ago
Log Number: 4473558Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Janak
DATE:             02/28/2026
SHIFT:               Day

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

CREW CHIEF SIGN IN

1 day 12 hours ago
Log Number: 4473554Logbook(s): Body: 
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM

Date : 02-28-26
Time : 07:37:39
Day : Saturday
Shift : Day

Crew Chief : Humphry
Program Deputy: Schoene
Team : X
Arm : RadCon
Designated SSO: Janak
LERF Operator:
Operators : Janak

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

QE Measurement

1 day 13 hours ago
Log Number: 4473552Logbook(s): Body: Spot Location: (13250,19250), Charge: 5.183736

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

Shift Information

Shift Swing
CEBAF Program
MCC Crew Chief Forman
MCC Operators Schaumloffel
Program Deputy Schoene
Announcements

Access Status

Recent PSS History

recent pss history graph