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Log Number: 3814177Logbook(s): 

• ELOG

Entry Makers: bfreemanBody: 

Mismatch, card could need to be reseated or swapped.

Log Number: 3814176Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 2.1 Target restore date was 2020-07-11 12:25:51 The output from the myRestore execution was as follows: iocnl07rffcc7 Rf12Fcc Pause: 60 second(s) Execute: /cs/opshome/burt/REBOOT/Rf12Fcc/DLOAD_ICAL.csh iocnl07rffcc7 (success) c100_rffcc@2020-07-11 12:25 32(32) restored Execute: burtwb -r 3 -f /cs/opshome/burt/REBOOT/Rf12Fcc/snap-ecal/iocnl07rffcc7-ecal.snap (success) Execute: burtwb -r 3 -f /cs/opshome/burt/REBOOT/Rf12Fcc/snap-exp/iocnl07rffcc7-exp.snap (success) Execute: /cs/opshome/burt/REBOOT/Rf12Fcc/GGTmyRestore.csh iocnl07rf

Log Number: 3814175Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 2.1 Target restore date was 2020-07-11 12:25:51 The output from the myRestore execution was as follows: iocnl07rffcc7 Rf12Fcc Pause: 60 second(s) Execute: /cs/opshome/burt/REBOOT/Rf12Fcc/DLOAD_ICAL.csh iocnl07rffcc7 (success) c100_rffcc@2020-07-11 12:25 32(32) restored Execute: burtwb -r 3 -f /cs/opshome/burt/REBOOT/Rf12Fcc/snap-ecal/iocnl07rffcc7-ecal.snap (success) Execute: burtwb -r 3 -f /cs/opshome/burt/REBOOT/Rf12Fcc/snap-exp/iocnl07rffcc7-exp.snap (success) Execute: /cs/opshome/burt/REBOOT/Rf12Fcc/GGTmyRestore.csh iocnl07rf

Log Number: 3814173Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 2.1 Target restore date was 2020-07-11 12:14:33 The output from the myRestore execution was as follows: iocnl07rffcc7 Rf12Fcc Pause: 60 second(s) Execute: /cs/opshome/burt/REBOOT/Rf12Fcc/DLOAD_ICAL.csh iocnl07rffcc7 (success) c100_rffcc@2020-07-11 12:14 32(32) restored Execute: burtwb -r 3 -f /cs/opshome/burt/REBOOT/Rf12Fcc/snap-ecal/iocnl07rffcc7-ecal.snap (success) Execute: burtwb -r 3 -f /cs/opshome/burt/REBOOT/Rf12Fcc/snap-exp/iocnl07rffcc7-exp.snap (success) Execute: /cs/opshome/burt/REBOOT/Rf12Fcc/GGTmyRestore.csh iocnl07rf

Log Number: 3814171Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 2.1 Target restore date was 2020-07-11 11:50:19 The output from the myRestore execution was as follows: iocnl07rffcc7 Rf12Fcc Pause: 60 second(s) Execute: /cs/opshome/burt/REBOOT/Rf12Fcc/DLOAD_ICAL.csh iocnl07rffcc7 (success) c100_rffcc@2020-07-11 11:50 32(32) restored Execute: burtwb -r 3 -f /cs/opshome/burt/REBOOT/Rf12Fcc/snap-ecal/iocnl07rffcc7-ecal.snap (success) Execute: burtwb -r 3 -f /cs/opshome/burt/REBOOT/Rf12Fcc/snap-exp/iocnl07rffcc7-exp.snap (success) Execute: /cs/opshome/burt/REBOOT/Rf12Fcc/GGTmyRestore.csh iocnl07rf

Log Number: 3814170Logbook(s): 

• ELOG

Body: 

Fire protection on site to turn off VESDA. Frank requested this, because the pump he is using could set it off and he wanted to be on the safe side. Tim Minga must be contacted to turn VESDA back on after pumping is completed.

Log Number: 3814169Logbook(s): 

• ELOG

Entry Makers: bfreemanBody: 

Cryo Coordinator has been paged and emailed with the 1L12 status. We are now in Restricted Access in the NL, and Frank is on site and getting ready.

Log Number: 3814167Logbook(s): 

• POLOG
• ELOG

Body: 
Record

Log Number: 3814165Logbook(s): 

• CLOG
• ELOG

Body: 

See Jay's entry (https://logbooks.jlab.org/entry/3814154) it was decided to proceed under the assumption the turbo pump had tripped and a larger scroll pump was needed. M. Drury will contact Frank Humphrey and TJ to come in. Once they are on the way the NL will go to Restricted so the pump can be moved into position and connected. Scroll pump will also be attached to the waveguides.

OPS (Freeman) will contact cryo on-call and update.

Log Number: 3814158Logbook(s): 

• ELOG
• LERFLOG

Body: 
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM

Date : 07-11-20
Time : 07:19:48
Day : Saturday
Shift : Day

Crew Chief : Freeman
Program Deputy: McGuckin
Team : -
LERF Operator:
Operators :

This stamp certifies that the above Crew Chief has read/reviewed/received the following:

Log Number: 3814154Logbook(s): 

• SRFLOG
• CLOG
• ELOG
• RFLOG

Tags: 

• Readme

Entry Makers: beneschBody: 

As first linked entry reports, the access around 2130 showed tuners still frozen. Heater heat was left on at 50 W (green in bottom panel) until I asked the SSO to turn it off a few minutes ago. The four Minco heaters are at least 10 cm square each and are good for 1 W/cm^2 in air, so 12.5 W each in helium gas below 200K will not have damaged them.

As the top panel indicates, diodes are reading mean of about 160K so the tuners should be free by now.

Log Number: 3814152Logbook(s): 

• ELOG

Entry Makers: lawBody: 

Set "Req Heat" and "LEM req heat" for 1L12 to 0.

Log Number: 3814148Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Surles-Law
DATE:             07/11/2020
SHIFT:               Owl

The operator has read the following:

Log Number: 3814143Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: 1L12 Warm Up

Log Number: 3814142Logbook(s): 

• ELOG

Body: ACC=>MAGNETS=>BOXES has been enabled in alarm handler

Done

Log Number: 3814139Logbook(s): 

• ELOG

Body: 

DOGLEG Power supplies 1, 3, 5, 7 and 9 were ramped this evening to 400A and their respective shunts were set at 2A. Everything looked good, and diagnostic data were taken.

O.Kumar, J.Coleman

Log Number: 3814133Logbook(s): 

• CLOG
• ELOG
• RFLOG
• SRFLOG

Body: 

Made an access into the tunnel and inspected the tuners while commanding movement. It was observed that they did not move, but made a clicking noise. Leaving the cryomodules in a heating up state.

Log Number: 3814128Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl632

Saved: ywang 07-10-20 21:08:00 {A:1 B:5 C:5 E:1050 A=Tune B=BS C=BS D=BS 0R08=0.00 0R08 dump in.

Log Number: 3814129Logbook(s): 

• ELOG

Entry Makers: ywangBody: 

Orbit drifted.
Recovered 150uA to Fcup #2.

Log Number: 3814125Logbook(s): 

• SRFLOG
• CLOG
• ELOG
• RFLOG

Entry Makers: beneschBody: 

Figure 1 shows the whole day. Upper pane is "cooldown" diodes. Middle is beamline and waveguide vacuum. Bottom is cryo signals. The variations around 1300 were caused by L-tube and RT valve work. JT closed about 1750. I don't know why the 2K outlet temp (1260) went to 180K during the L-tube work.

Figure 2 shows the last four hours. One sees in the lowest pane the JT closing in steps starting at 1750. Liquid level rises because the electric heaters were putting out 225 W and there was lots of cold gas moving by the sensor.