Recent Log Entries

RF communication recovery after power outage

Log Number: 3734834Logbook(s): Entry Makers: mountsBody: 

It has been noted that restoring communications to the RF system PC104 iocs is painfully slow. Sam was trying to restore the south linac C100 zones for over an hour yesterday cycling power multiple times to restore comm. Chris Kerns has experienced the same issue. I spoke with Brad Cumbia and he says the network is fine...

COMMENT ON CEBAF / Halls PSS Certification - October 2019

Log Number: 3734829Logbook(s): Body: 

Majority of the PSS Certification tasks are complete.
For the reminder of the certification only Injector segment is required.
In cooperation with the Source Group we'll do the Gun High Voltage tests Thursday afternoon. Other tests requiring the beam will be performed some time next week, when the new cathode is available.

Following RF zones were not ready therefore not tested functionaly: 1L07 and 1L12.
The following DC Box Supplies were not ready therefore not tested functionally: TSB5C.
These devices will be tested in the following weeks at opportune time.

ABIL Tag #3429 added to RF14 NL12.

Log Number: 3734822Logbook(s): Body: The following entry was placed in the Accelerator Bypassed-Interlocks Log (ABIL) Device: RF14 NL12 Function: Waveguide Pressure/Ready Location: NL Zone 12 Purpose: RF Repair Exp.

TSB5C Box Supply

Log Number: 3734810Logbook(s): Body: 

Troubleshooting revealed a phase fault (internal interlock) that is keeping from locally turning on the supply. Also might be a communications issue with the supply as there is no box supply heartbeat. Rebooted the IOC with no joy.

ced2Epics modified EPICS PVs

Log Number: 3734808Logbook(s): Tags: Body: The following control system variables were updated because they were detected to differ from their CED property counter-parts.
  • R178GSET.DRVH: found 0; restored to CED value of 17

iocnl07rffcc8 restoration failed

Log Number: 3734807Logbook(s): Tags: Body: restorelib 2.1 Target restore date was The output from the myRestore execution was as follows: <MyAPI>: Channel lookup fault [iocnl07rffcc8:ioc_sr.VALD]

ioctsbmag restored

Log Number: 3734806Logbook(s): Tags: Body: restorelib 2.1 Target restore date was 2019-10-16 17:21:17 The output from the myRestore execution was as follows: ioctsbmag magnet_MAG@2019-10-16 17:21 88(88) restored Pause: 2 second(s) magnet_HVAL@2019-10-16 17:21 42(42) restored Pause: 2 second(s) magnet_LOOP@2019-10-16 17:21 42(42) restored Pause: 2 second(s) magnet_CMPQ@2019-10-16 17:21 84(84) restored tsbmagFlow@2019-10-16 17:21 2(2) restored system@2019-10-16 17:21 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -s -i ioctsbmag (success) Procedure

The following cavity histories have been updated: 1L06-7

Log Number: 3734800Logbook(s): Tags: Body: 

The following cavity histories have been updated:
1L06-7
Username: tdavis
Date/Time: 10-16-19_16:40:18
RF Status: Bad
Tuner Status: Good
Comment: Had a Klystron Cathode Current fault. Both the CPS breaker and the MDP breaker tripped (the second time the MDP breaker tripped.). Bypassed cavity #7 and the zone came up into high voltage.
Special Instructions:

iocsoftbpms restored

Log Number: 3734798Logbook(s): Tags: Body: restorelib 2.1 Target restore date was 2019-10-16 16:13:13 The output from the myRestore execution was as follows: iocsoftbpms glob4ch@2019-10-16 16:13 36(36) restored softBPM@2019-10-16 16:13 72(72) restored system@2019-10-16 16:13 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -s -i iocsoftbpms (success) Procedure return status: Success

iocsoftbpms restored

Log Number: 3734797Logbook(s): Tags: Body: restorelib 2.1 Target restore date was 2019-10-16 16:13:13 The output from the myRestore execution was as follows: iocsoftbpms glob4ch@2019-10-16 16:13 36(36) restored softBPM@2019-10-16 16:13 72(72) restored system@2019-10-16 16:13 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -s -i iocsoftbpms (success) Procedure return status: Success

iocsoftbpms restored

Log Number: 3734795Logbook(s): Tags: Body: restorelib 2.1 Target restore date was 2019-10-16 16:13:13 The output from the myRestore execution was as follows: iocsoftbpms glob4ch@2019-10-16 16:13 36(36) restored softBPM@2019-10-16 16:13 72(72) restored system@2019-10-16 16:13 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -s -i iocsoftbpms (success) Procedure return status: Success

Gun2 HVPS SF6 tank pump down complete

Log Number: 3734794Logbook(s): Entry Makers: chgarciabullardBody: 

After leaving the DILO transfer system with all valves closed to Gun2 HVPS SF6 tank yesterday around 14:00 (we had to leave the injector for PSS certs), Bubba re-started the DILO compressors this morning around 5 am. Around 12 noon, the vacuum in the HVPS tank had not decreased significantly using the compressors in the DILO transfer system. Then Bubba installed a small diaphragm pump between the HVPS SF6 tank and the DILO compressors. By 14:30 the vacuum had dropped to about 20 inHg. We stopped and closed all valves.

iocw2se1 restored

Log Number: 3734793Logbook(s): Tags: Body: restorelib 2.1 Target restore date was 2019-10-16 15:53:58 The output from the myRestore execution was as follows: iocw2se1 system@2019-10-16 15:53 2(2) restored seebpm@2019-10-16 15:53 2113(2113) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -s -i iocw2se1 (success) Procedure return status: Success

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