Aggregator
The following cavities have been GSET 0: 1L21-5
Log Number: 4473867Logbook(s): Tags: Body:
The following cavities have been GSET 0:
1L21-5
Username: michaelm
Date/Time: 03-02-26_12:45:11
RF Status: Bad
Tuner Status: Good
Comment: GSET 0 - stepped off +100k - 300ppm glder when tuned; RFCM? 2.5W amp swapped 2/24/25
Special Instructions:
Maintenance Tag: Component: RFCM
The OPS DRVHs for the following cavities have been updated: 1L13-2
FSD Masking Tool: Successful System UN-Masking for: BeamLossMonitor
Removed Anode +1 kV Bias - Anode now connected to Picoammeter
FSD Masking Tool: Successful System Masking for: BeamLossMonitor
APPROVED B72 Extensive 5-year PM
APPROVED Replace Multiple 20A SCE
BEM daemon optics were resampled
Log Number: 4473856Logbook(s): Tags: Body: Event/action ID: 2 [mod.type.prop.bpm.s | mod.type.prop.bpm.betax | mod.type.prop.bpm.alphax | mod.type.prop.bpm.etax | mod.type.prop.bpm.psix | mod.type.prop.hcorrector.s | mod.type.prop.hcorrector.betax | mod.type.prop.hcorrector.alphax | mod.type.prop.hcorrector.etax | mod.type.prop.hcorrector.psix | mod.type.prop.vcorrector.s | mod.type.prop.vcorrector.betax | mod.type.prop.vcorrector.alphax | mod.type.prop.vcorrector.etax | mod.type.prop.vcorrector.psix]
Deployment: ced
Workspace: ops
Changes:
ipm0l02.alphax
ipm0l02.betax
ipm0l02.psix
ipm0l03.alphax
ipm
Deployment: ced
Workspace: ops
Changes:
ipm0l02.alphax
ipm0l02.betax
ipm0l02.psix
ipm0l03.alphax
ipm
FSD Masking Tool: Successful System UN-Masking for: BeamLossMonitor
FSD Masking Tool: Successful System Masking for: BeamLossMonitor
The following cavity histories have been updated: 1L26-5
Log Number: 4473853Logbook(s): Tags: Body:
The following cavity histories have been updated:
1L26-5
Username: jkt
Date/Time: 03-02-26_12:08:20
RF Status: Good
Tuner Status: Good
Comment: recovering now till fix the circulators. Follow special instructions
Special Instructions: if dropps under KRRPw, lower the GLOSS and bring up slowly.Donot optimize POFF at higher power
Maintenance Tag: Component: Other
The following cavity histories have been updated: 1L26-5
Log Number: 4473852Logbook(s): Tags: Body:
The following cavity histories have been updated:
1L26-5
Username: jkt
Date/Time: 03-02-26_12:07:39
RF Status: Bad
Tuner Status: Good
Comment: C100 Bypassed - KRRP faults. Circulator issues?
Special Instructions: if dropps under KRRPw, lower the GLOSS and bring up slowly.Donot optimize POFF at higher power
Maintenance Tag:
Follow-up Re: List of Mismatched Shunts Vs Design (resolved)
Log Number: 4473848Logbook(s): Body:
I incorrectly downloaded the setpoints from eDT without checking that they were all set at setpoint 1 but a lot of them were at setpoint 3, so I switched everything over to setpoint one, redownloaded S1 setpoints from eDT, and cycled everything. The LAM1C value and shunt is still incorrect, but that is expected since the magnet will not be used during the run. For now I set it as equal and opposite to LAM3C
eDT V2-40-2 Design Setpoints Download - Downloading dog setpoints
Follow-up Re: Turned OFF the IAs
Log Number: 4473846Logbook(s): Body:
Last Thursday, MOLLER students measured about 0.3 ppm with the JLab RTP OFF (and the IA OFF). Since both real-time devices are OFF, it was not clear how the batteries saw a helicity-correlated effect.
Took control access to investigate. Found that even when the IA chassis has been unplugged, the helicity signal was still re-routed back to the UVA switching box. Both the green and red LEDs on the box were flickering (see Figures 1 and 2).
It is suspected that the IA chassis has a dc voltage coming to it though the other connectors on the back side.
The following cavity histories have been updated: 2L23-3
Log Number: 4473845Logbook(s): Tags: Body:
The following cavity histories have been updated:
2L23-3
Username: kerns
Date/Time: 03-02-26_11:53:23
RF Status: Bad
Tuner Status: Good
Comment: Faults due to CPS Bay 1 faulting off with DSP battery low. Needs Dsp board and supply checked out.
Special Instructions:
Maintenance Tag: Component: CPS Components
The following cavity histories have been updated: 2L23-1
Log Number: 4473844Logbook(s): Tags: Body:
The following cavity histories have been updated:
2L23-1
Username: kerns
Date/Time: 03-02-26_11:53:23
RF Status: Bad
Tuner Status: Good
Comment: Faults due to CPS Bay 1 faulting off with DSP battery low. Needs Dsp board and supply checked out.
Special Instructions:
Maintenance Tag: Component: CPS Components
2L23 HV dropping
Log Number: 4473841Logbook(s): Entry Makers: kernsBody:
Cavities 2 and 8 lost filament voltages. Readbacks good when I switched fibers for both. Both need filament boards replaced. I bypassed both cavities until filament boards replaced and CPS Bay 1 can be looked at while locked out. Cabinet Bay 1 CPS dropped out of HV with a DSP Battery Low fault several times when I cleared it locally and it went back into HV for about 3 minutes. Cavities 1 and 3 aren't producing KCCU for this reason. Needs the 24v DC power supply on the DSP Control board measured and replaced if needed.
Box Supplies Were Cycled
Log Number: 4473840Logbook(s): Tags: Body:
The following box supplies were CYCLED by version 2-16 of the Box Supply Cycling Script:
ARC1A Ramp Rate = 7.400 A/s
ARC2A Ramp Rate = 6.712 A/s
ARC3A Ramp Rate = 3.172 A/s
ARC4A Ramp Rate = 10.144 A/s
ARC5A Ramp Rate = 9.307 A/s
ARC6A Ramp Rate = 9.326 A/s
ARC8A Ramp Rate = 11.455 A/s
ARC9A Ramp Rate = 9.322 A/s
ARCAA Ramp Rate = 11.756 A/s
LAM1C Ramp Rate = 8.295 A/s
LAM3C Ramp Rate = 8.298 A/s
MYA2T01 Ramp Rate N/A
MYA4T01 Ramp Rate N/A
MYA6T01 Ramp Rate N/A
MYA8T01 Ramp Rate N/A
MYAAT01 Ramp Rate N/A
RSEP8A Ramp Rate = 10.544 A/s
RSEP9A Ramp Rate = 4.865 A/s
XSEP2T
Shift Information
| Shift | Day |
|---|---|
| CEBAF Program | |
| MCC Crew Chief | Blackshaw |
| MCC Operators | Humphry, Janak |
| Program Deputy | Schoene |
| Announcements |
Access Status
Recent PSS History
