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iCalibrate: Hall C

1 day 21 hours ago
Log Number: 4539582Logbook(s): Body: Calibration ParametersHall:CTarget: 10cm DummyPass: 5Note: SHMS angle: -14-74Calibrated On:2026-Jul-28 02:36Calibrated By: msmithFile:C-2026-07-28_0236_10cm_Dummy_Pass-5.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)Compton
chumphry

Operator SIGN IN

1 day 23 hours ago
Log Number: 4539537Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Merz
DATE:             08/07/2026
SHIFT:               Day

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

Hall C Upstream/Downstream/UNSER BCM Reconfiguration (for Moller)

1 day 23 hours ago
Log Number: 4539527Logbook(s): Body: 

AM

Moller team is utilizing a sample from the BCMs to validate receiver performance for JLAB and Berkeley designs. The 20 dB inline attenuators were transferred from before the couplers to after, preserving standard Hall C measurement, but adding 20 dB (x10 in RF voltage) to the coupled signals.

The coupled path is obtained by a 10 dB directional coupler (>25 dB of directivity), followed by an isolator (>18 dB of RL), and additional attenuation if necessary....In all, providing 60 dB of isolation from the Hall C receivers.

J. Musson
x7441

musson

COMMENT ON Relocate IDXs 1L02 and 2L02 to upstream recombiner

2 days ago
Log Number: 4539483Logbook(s): Body: 

I don't want use to be too hasty in executing this task. For Tuesday 8/11, let's scope out the work involved in the SL, but nothing more. Please submit a proposal to the Director of Accelerator Operations, a la CEBAF Decision Memo, for the change so that it can be adequately reviewed and approved before moving forward. Thanks.

moser

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CEBAF Program
MCC Crew Chief Schoene
MCC Operators Barker, Shenenberger
Program Deputy Latosky
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