Aggregator

Log Number: 4509556Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavities have been UnGSET 0:
Zone 2L16
Username: kerns
Date/Time: 06-08-26_15:07:59
RF Status: Good
Comment: UnGSET 0 - stepped on -100k - Arc/IR Chassis repaired and zone ready for RF
Special Instructions:

Maintenance Tag: Component: Interface Chassis Cards

Log Number: 4509555Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl02
Data from: /usr/opdata/burt/allsnap/06-08-26_08:54:33
Restored file: /tmp/06-08-26_15:06:19.snap

Log Number: 4509554Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl02

Saved: bruker 06-08-26 15:06:05 {A:i B:1 C:3 E:850 A=BS B=BS C=BS D=BS 0R08=0.00 0R08 dump in. A B C dump(s) in. Autosave prior to restore.

Log Number: 4509553Logbook(s): 

• POLOG
• MOTTLOG
• ELOG

Entry Makers: brukerBody: 

These setpoints will be interesting for comparison with tracking simulations of the misaligned VWien model. Note the upstream steering correction changes the path length by enough to necessitate laser phase adjustments.

Log Number: 4509552Logbook(s): 

• HDLOG
• POLOG
• MOTTLOG
• ELOG

Entry Makers: brukerBody: 

Polarization measurement with D laser and opportunistic VWien calibration for 140 kV gun voltage. Scroll all the way down for the final result.

All runs with 2 patterns of helicity delay.

Run #10176: no beam, no events, good

Run #10177: 2 uA, Wiens at 0, IHWP IN, 300k events @ 2.7 kHz
Figure 1: E fits. Right detector showing greater peak width and fewer counts than the rest.

Log Number: 4509549Logbook(s): 

• ELOG

Body: 

Shunt for MBZ9E02 has been replaced.
Shunt module is able to take a setpoint now.
Still experiencing issues with a "Bus Mismatch" error.

- Kissinger, Crespo

Log Number: 4509548Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
2L24-6
Username: janak
Date/Time: 06-08-26_14:52:10
RF Status: Good
Tuner Status: Bad
Comment: C100 Bypassed - Unknown
Special Instructions:

Maintenance Tag: Component: Operator Entry - See SME

Log Number: 4509547Logbook(s): 

• POLOG
• BTLOG
• ELOG

Body: 

Date of Measurement: Friday, June 05, 2026

Associated Log Numbers: 4508732, 4508733, 4508734, 4508735, 4508741, 4508743, 4508746, 4508747, 4508748, 4508749, 4508750, 4508751, 4508752, 4508755, 4508758 and 4508761

A reference QE measurement was performed the same day after anisotropy measurements. Spot Location: (13000.1, 18350.4), Charge: 1.76433. The measured QE for the Hall A laser at that time was 0.4690% (see Lognumber 4508758).

Log Number: 4509545Logbook(s): 

• ELOG

Body: 

MQK5C07 & MQK5S10 have both been replaced.
Both are taking setpoints.
Closing PTW.

- Kissinger, Crespo, Coleman

Log Number: 4509541Logbook(s): 

• ELOG

Body: 

looks like this noise is most likely coming from drive chain in cavity 6 and not from downstairs. We inspected the cables upstairs and couldn't find anything. The chassis readback was looking fine in the loopback mode, which may rule out the chassis. We will inspect the drive cable and preamplifier tomorrow

Log Number: 4509538Logbook(s): 

• ELOG

Body: 

We will perform the test of the Hall B gas shed ODH system to verify the fan relay is functioning correctly, this afternoon.

Log Number: 4509536Logbook(s): 

• SRFLOG
• ELOG

Entry Makers: michaelmBody: 

Nominal setting 12 MV/m. Pulse processed up to 19 MV/m (quench limited) with 20-30 ms on/1 s off pulse structure. Beamline decarad rate reduce from 10k counts > 3800 counts (~60% improvement).

Log Number: 4509529Logbook(s): 

• MOLLER
• POLOG
• ELOG

Body: 

Done

Log Number: 4509518Logbook(s): 

• ELOG

Body: ACC=>TRIMS=>E101B08 has been enabled in alarm handler

test over

Log Number: 4509514Logbook(s): 

• ELOG

Body: 

Channels also made their way into the archiver today , which the autobias script and myRestore also depends on. System should now be ready for Ops

Log Number: 4509513Logbook(s): 

• ELOG

Body: 

Calibration init, and autobias scripts are now fully functional. IIX2C09 (IDXBS04 Ch. 2) calibration factor and serial number also updated in my CED workspace. Merge has been requested for this element.

Log Number: 4509511Logbook(s): 

• POLOG
• MOTTLOG
• ELOG

Entry Makers: brukerBody: 

Setting up according to log #4473570.
Figure 1: Mott ladder IOC seems to have forgotten the saved positions. Re-saved them. The stage seems to still be homed.
0L03 and 0L04 off.
IBC0L02 B-chain pre-gain 2 was set to 36, setting it to 0 for now (avoid clipping). Now, 3 uA gives 25000 counts. Set trip limit to that, unmasked FSD bit, tested trip.

The setup I inherited has HWien = VWien = 0 and MFG1I04 = +/- 85.81.

Log Number: 4509506Logbook(s): 

• ELOG

Body: 

Task approved by work supervisor.
Pre-job brief completed.

Log Number: 4509503Logbook(s): 

• ELOG

Body: ACC=>TRIMS=>E101B08 has been disabled in alarm handler

test

Log Number: 4509501Logbook(s): 

• ELOG

Body: 

Performed maintenance on the HAll A and C exchange key master key cylinder. Lubed the mechanism. Hall B was done on a earlier date.