Aggregator

Log Number: 4509017Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl02

Saved: bruker 06-06-26 11:13:15 {A:i B:1 C:3 E:1060 A=CW B=BS C=BS D=BS 0R08=0.00 0R08 dump in. A B C dump(s) in.

Log Number: 4509016Logbook(s): 

• ELOG

Entry Makers: janakBody: 

This cavity is tripping often. Tried to do a POFF optimization but it didn't have much effect. Derated the GSET from 10 to 9.2 and that got the RF to stay on, but the PMES is still all over the place and the PLDE fault won't clear.

Log Number: 4509015Logbook(s): 

• ELOG

Entry Makers: bjacobBody: 

Looks similar to what was happening yesterday (see linked ELog)

Log Number: 4509014Logbook(s): 

• DCLOG
• ELOG

Entry Makers: victorc

Log Number: 4509013Logbook(s): 

• POLOG
• ELOG

Entry Makers: brukerBody: 

Recorded a movie from the laser camera showing the jumps.
/a/opsdata/fiefdata/fileio/a/adviewer/video/F1-0/20260606_101821.avi
Here is an example frame where you see a jump. The profile is cut off with a sharp boundary, and the repeated copy has the exact same diffraction features. I think this means the reflection on the window is not moving and something is happening in the data acquisition from the camera.

Log Number: 4509012Logbook(s): 

• ELOG

Entry Makers: janakBody: 

After the previous POFF optimization, this cavity is still quenching. Reduced GSET to 12.4 and will continue to monitor.

Log Number: 4509011Logbook(s): 

• ELOG

Entry Makers: janakBody: 

Log Number: 4509010Logbook(s): 

• ELOG

Entry Makers: janakBody: 

Quenched a couple times, attempted a POFF optimization. Didn't get a big change but will monitor.

Log Number: 4509009Logbook(s): 

• ELOG
• RFLOG

Entry Makers: victorcBody: 

Cavity seems happier now after phase offset was optimized.

Log Number: 4509008Logbook(s): 

• ELOG

Body: 

Ran supplies ARC1, ARC3, ARC5, ARC7, ARC9, & RSEP9 after yesterdays ARC9 work. All supplies and their respective shunts are working as expected.

ARC9 seems to be holding good (more than 30min of running as of writing this entry) and haven't tripped on magnet over temperature. Citro clean of the magnet MJA9A09 did make a difference in cooling the magnet. I have asked operations teams to watch ARC9 another half hour and then they can start their cycling scripts.

ARC5 shunt MXD5R01 issue is resolved aswell and it working as expected. ARC5 is now ready for cycling scripts.

Log Number: 4509007Logbook(s): 

• POLOG
• ELOG

Entry Makers: suleimanBody: 

Still rising.

Injector tunnel temps (black readback in Figures 1 and 2) are showing zero. The tunnel must be warming up, too.

Log Number: 4509006Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl02

Saved: bruker 06-06-26 09:54:27 {A:i B:1 C:3 E:1060 A=Tune B=BS C=BS D=BS 0R08=0.00 0R08 dump in. A B C dump(s) in.

Log Number: 4509005Logbook(s): 

• DCLOG
• ELOG

Entry Makers: victorcBody: 

Will let Arcs 5 and 9 soak for a bit before commencing their cycling cycles.

Log Number: 4509003Logbook(s): 

• POLOG
• ELOG

Entry Makers: suleimanBody: 

The range for the amplifiers temperature is 20 to 35 C - see Figure 1.

Yesterday three of the amps reached 35-36 C and Hall C reached 41 C - see Figure 2.

The CIS instructions for "Laser Hut Temperature" is show in Figure 3 and here:

https://opswiki.acc.jlab.org/wiki/Laser_Hut_Temperature_alarm

In the above instructions, it is stated: "The lasers have thermal protection that will shut them off if the safe operating temperature is exceeded. " Is this correct? Should we instead ask OPS to turn off amplifiers if their temperatures go above 35 C.

We should update these instructions as below.

Log Number: 4509002Logbook(s): 

• FMLOG
• ELOG

Entry Makers: bjacobBody: 

Accessed this room for Arc 9 work (see attached ELog).

Noted that door handle wasn't turning the latch when we opened the door but when using the key the latch would turn so we felt confident in shutting the door when we were done in the room. However, after shutting the door, we found that, even with the key inserted, we couldn't get the latch to turn and the door wouldn't open. Facilities contacted.

Log Number: 4509001Logbook(s): 

• DCLOG
• ELOG

Entry Makers: victorcBody: 

Fault was latched on MJA9A09. Hit the reset button at the request of DC Power. Fault cleared and were able to then turn on MARC9A.

Log Number: 4509000Logbook(s): 

• POLOG
• ELOG

Entry Makers: suleimanBody: 

Alerted MCC before we have to trun off amplifiers.

Log Number: 4508999Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl02
Data from: /usr/opdata/burt/allsnap/06-05-26_23:33:51
Restored file: /tmp/06-06-26_08:54:18.snap

Log Number: 4508998Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl02
Data from: /usr/opdata/burt/allsnap/06-05-26_16:28:24
Restored file: /tmp/06-06-26_08:53:16.snap

Log Number: 4508996Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl632

Saved: victorc 06-06-26 08:20:58 {A:i B:1 C:3 E:1060 A=BS B=BS C=BS D=BS 0R08=0.00 0R08 dump in. dump(s) in.