Aggregator

Log Number: 4529289Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

Beam Conditions:
Total Linac Current (R2XXITOT) = 294.12
Hall A Current (IBC1H04CRCUR2) = 0
Hall B Current (IPM2C24A.IENG) = 3.22991
Hall C Current (IBC3H00CRCUR4) = 73.53
Hall D Current (IBCAD00CRCUR6) = 166.5
BSY Current (IBC4C00CRCUR5) = 0
INJ Energy (MMSINJEGAIN) = 119.615
NL Energy (MMSLIN1EGAIN) = 1060
SL Energy (MMSLIN2EGAIN) = 1060

Gradient Problems:
0L02-7 Klystron Cathode Current (KCCU)=0.00390625 (<=0.7A)
0L03-1 Local Oscillator Power (LOPW)=44.6 (<=70mW)
1L05-5 Klystron Cathode Current (KCCU)=0.00695801 (<=0.7A)
1L06-1 Measured Gradient (GMES)=0.154 (>=0.1) with RF OFF - Check De

Log Number: 4529287Logbook(s): 

• ELOG

Entry Makers: bjacobBody: 

At the request of SME:

IDXNL01 1 -> 0.5

IDXSL27 0.5 -> 0.2

Log Number: 4529280Logbook(s): 

• ELOG

Body: Calibration ParametersHall:CTarget: Loop 1 10cmPass: 4Note: SHMS angle: -12.97, 1uACalibrated On:2026-Jul-19 17:59Calibrated By: yoonFile:C-2026-07-19_1759_Loop_1_10cm_Pass-4.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)Co

Log Number: 4529281Logbook(s): 

• ELOG

Entry Makers: chumphryBody: 

Log Number: 4529279Logbook(s): 

• ELOG

Entry Makers: moserBody: 

Earlier today ACE group swapped a UPS that was throwing errors for a linac roll-around PC cart, plugged into an NL24 rack 120VAC front-facing outlet near the floor. The UPS being swapped reported going down yesterday between 1830 and 1930. ACE found the unit to be cycling on and off and not booting up. Upon swapping the UPS, the same behavior was observed. Swapped the new UPS to power from NL25 racks, same problem. Swapped to NL26 racks, no issues. Tried the UPS back in 87, no issues.

Facilities was contacted by Ops both via x7400 and ServiceNow incident INC0566852 to investigate.

Log Number: 4529272Logbook(s): 

• ELOG

Entry Makers: chumphry

Log Number: 4529271Logbook(s): 

• ELOG

Entry Makers: janakBody: 

Derated from 15.7 MV/m to 15.2. Added same amount to 1L19

Log Number: 4529269Logbook(s): 

• BTLOG
• ELOG

Body: 

Log Number: 4529268Logbook(s): 

• ELOG

Entry Makers: bjacobBody: 

Looks like 1L25 had a BLVF possibly caused by cavity 8 quenching. Recovered without issue.

Log Number: 4529259Logbook(s): 

• ELOG

Entry Makers: chumphryBody: 

Log Number: 4529256Logbook(s): 

• ELOG
• RFLOG

Body: 

1L-17's fan was left in auto and the fan failed to turn back on when the zone came up into HV. This caused the zone to heat up, creating a smell in the North Linac. The fan has been set to hand and the fan is on. The zone is cooling now.

Log Number: 4529253Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: UNMasked Hall C Normal Target FSD

Log Number: 4529252Logbook(s): 

• ELOG
• RFLOG

Entry Makers: alexsBody: 

Zone dropped with no enunciated faults, tripping the CPS breaker. This happened on Saturday, also with no indications of a real fault or current surge. Root cause investigation is ongoing, but zone came right back without issue after resetting the breaker.

Log Number: 4529250Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Masked Hall C Normal Target FSD

Log Number: 4529244Logbook(s): 

• ELOG

Entry Makers: mockBody: 

It was changed from 15000 to 3000.

Log Number: 4529235Logbook(s): 

• ELOG

Entry Makers: 4d0ho6k07e4ugf46ssl24c0emcBody: Test On-call

Log Number: 4529234Logbook(s): 

• ELOG

Entry Makers: 4d0ho6k07e4ugf46ssl24c0emcBody: Test

Log Number: 4529233Logbook(s): 

• ELOG

Entry Makers: 4d0ho6k07e4ugf46ssl24c0emcBody: Test

Log Number: 4529232Logbook(s): 

• ELOG

Entry Makers: 4d0ho6k07e4ugf46ssl24c0emcBody: Test

Log Number: 4529229Logbook(s): 

• ELOG

Entry Makers: janakBody: 

Hall C was informed of the Helicity test in Hall D
Step 1:Under Reporting Delay selected No Delay (was previously 8 window) and set the Hall A IA DACs to 65000
Step 2: Selected 8 windows delay - DACs unchanged.
Step 3: Alternated between 1000 and 65000 on the DACs