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Autolog save

14 hours 17 minutes ago
Log Number: 4509017Logbook(s): Tags: 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.
bruker

1L07-1 PLDE Fault

14 hours 41 minutes ago
Log Number: 4509016Logbook(s): 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.

janak

Laser jumps likely not real

14 hours 57 minutes ago
Log Number: 4509013Logbook(s): 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.

bruker

1L23-1 Quenching

15 hours 5 minutes ago
Log Number: 4509012Logbook(s): Entry Makers: janakBody: 

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

janak

1L23-1 Quenching

15 hours 12 minutes ago
Log Number: 4509010Logbook(s): Entry Makers: janakBody: 

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

janak

COMMENT ON DC Power Machine High Energy Re-configuration

15 hours 22 minutes ago
Log Number: 4509008Logbook(s): 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.

okumar

Autolog save

15 hours 36 minutes ago
Log Number: 4509006Logbook(s): Tags: 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.
bruker

Instructions for "Laser Hut Temperature" Alarm

15 hours 40 minutes ago
Log Number: 4509003Logbook(s): 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.

suleiman

South Access Building Door 4 Stuck

15 hours 42 minutes ago
Log Number: 4509002Logbook(s): 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.

bjacob

Autolog save

17 hours 9 minutes ago
Log Number: 4508996Logbook(s): Tags: 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.
victorc

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