Aggregator

Log Number: 4487795Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16731Title:
MQN6E03 Mismatch

Summary:
20 amp quad mismatched and blew optics into Hall B. Wouldn't accept set point and jiggling the current slider didn't help either.

Log Number: 4487792Logbook(s): 

• ELOG

Entry Makers: janakBody: 

Would not take setpoint. 20 Amp trim so DC power is investigating.

Log Number: 4487770Logbook(s): 

• POLOG
• ELOG

Entry Makers: suleimanBody: 

Over the last two weeks - look very stable.

Log Number: 4487769Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: Event/action ID: 3 [mod.type.prop.ioc.macaddress]
Deployment: ced
Workspace: ops
Changes:
iocipm1s01m.macaddress

Log Number: 4487767Logbook(s): 

• ELOG

Body: 

Figs. 1-3 shows the CW versions of the PCA analysis for mode 1 corresponding to ~0.1 Hz. Note the linac bpms now read likely the superposition of the two passes unlike in beam synch mode. Time series data shows ~6 oscillations in 60 s which is 0.1 Hz.

Log Number: 4487764Logbook(s): 

• DCLOG
• ELOG

Entry Makers: janakBody: 

Took setpoint. We're not cycling magnets right now due to standing orders. Did not swap TC.

Log Number: 4487763Logbook(s): 

• ELOG
• INCLOG

Body: 

Attached is a plot of dispersion and beta functions at the IPM2A24 location used to locate placement of the labjack. Hard to see in the figure but IPM2A24 is near the peak of the black curve (horizontal dispersion etax).

Log Number: 4487757Logbook(s): 

• ELOG

Entry Makers: bjacobBody: 

CW beam to 2 Halls

Not bad.

2L06 got us this time.

Log Number: 4487752Logbook(s): 

• ELOG
• INCLOG

Entry Makers: sethgsawyerBody: 

LabJack Configuration

Injector Service Building (ISB) - Connected to IPM0R05 single pass non-MUX'd
North Linac BPM Test Stand - Connected to IPM1S00A single pass non-MUX'd
East Arc Building 2 (E2) - Connected to IPM1A04 single pass MUX'd
West Arc Building 4 (W4) - Connected to IPM2A24 single pass MUX'd
Beam Switch Yard Service Building (BSYSB) - Connected to IPM3C12 single pass non-MUX'd

Log Number: 4487745Logbook(s): 

• ELOG

Body: 

Every root file is in cdaql2's /data/cdaq/hallc-online-ndelta_vcs2_2026/ROOTfiles

1. Elastic scattering

We took the electron singles and the dummy singles.
Full replays are almost done.
Calculate the efficiency regarding the proton absorption.

2. Comparison of simc and data.

*d and *a setting full replays are almost ready and simc is in /work/hallc/alphaE/sangbaek/simc_gfortran/worksim .
Elastics are there too.

Compare the data to the simulation.

3. Cross-checking 7a statistics

Log Number: 4487733Logbook(s): 

• ELOG

Entry Makers: bfreemanBody: 

Exposure time set 4s to lighten surrounding area.

Well defined diffraction pattern isn't visible.

Fig 1 - slit out/ Fig 2 slit in/ Fig 3 - camera settings

Looks like several sources of diffraction, one from a circular aperture then one from the slits. Also of note that the image looks different before and after optics changes.

Log Number: 4487721Logbook(s): 

• ELOG

Entry Makers: janakBody: 

Log Number: 4487720Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: UNMasked Hall C Normal Target FSD

Log Number: 4487718Logbook(s): 

• ELOG

Body: Calibration ParametersHall:CTarget: Loop 3 4cmPass: 2Note: SHMS angle -10.67,current -396.1Calibrated On:2026-Mar-31 17:58Calibrated By: yoonFile:C-2026-03-31_1758_Loop_3_4cm_Pass-2.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)

Log Number: 4487717Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl632

Saved: chumphry 04-15-26 09:33:56 {A:i B:3 C:2 E:345 A=BS B=CW C=BS D=BS 0R08=0.00 No dumps in.

Log Number: 4487716Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Masked Hall C Normal Target FSD

Log Number: 4487713Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System UN-Masking for: IonChamber
User: janak
Areas: HallC

IonChamber Devices:
IIC3P03
IIC3H04
IIC3H07
IIC3H09
IICD307
IICD307A
IICSHMS

Log Number: 4487712Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System UN-Masking for: BeamLossMonitor
User: janak
Areas: HallC

BeamLossMonitor Devices:
ILM3C00
ILM3C03
ILM3C08
ILM3C12A
ILM3C15
ILM3P02
ILM3P03
ILM3P04
ILM3P01

Log Number: 4487711Logbook(s): 

• ELOG

Body: Faster Raster Mask State: (B MAGNETS MASKED) Fast Raster is initialized for 1.41893 GeV Max current is 60 uA Raster was last initialized on 15APR26 09:24:59
Hall C Raster has been set to width = 2.0 by height = 2.0 Coil Pairs is 1

Log Number: 4487710Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: