Aggregator

Log Number: 4508630Logbook(s): 

• ELOG

Entry Makers: anthonyBody: 

Log Number: 4508629Logbook(s): 

• DCLOG
• ELOG

Body: 

MJA9A09 tripped twice on magnet overtemp during BoxPS HCO earlier today.

One supply and return LCW valves feed this dipole and the "lower" (i..e in pass #, not physical vertical placement) pass dipoles directly above it, and these valves were fully open. There were no issues during BoxPS HCO on the "lower" pass dipoles.

Log Number: 4508628Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl04
Data from: /usr/opdata/burt/allsnap/06-04-26_13:39:45
Restored file: /tmp/06-04-26_20:52:27.snap

Log Number: 4508627Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl04

Saved: anthony 06-04-26 20:52:13 {A:i B:1 C:3 E:1060 A=BS B=BS C=BS D=BS 0R08=0.00 0R08 dump in. A B C dump(s) in. Autosave prior to restore.

Log Number: 4508626Logbook(s): 

• ELOG
• RADLOG

Entry Makers: dchriBody: 

Log Number: 4508625Logbook(s): 

• ELOG
• RFLOG

Entry Makers: lrichardBody: 

Noting...

Log Number: 4508623Logbook(s): 

• ELOG
• SRFLOG

Body: 

Newest results.

Log Number: 4508622Logbook(s): 

• CLOG
• ELOG

Entry Makers: dchriBody: 

I haven't touched the JT valve for awhile now. Last thing I did was put the sample time setpoint back to it's original 30 (was previously 10 during my measurements). It was within minutes after the CHL trip that I restored the sample time setpoint

perhaps this is due to the ~20W heater readback on 2L25, which I believe is unintended as the other modules heaters are all at 0W

Cryo may be opening the valve on their end and I just can't 'see' it, similar to how they are controlling the valves regardless of what the Ops JT Valve Screen says or Ops PV 'claims' it to be...

Log Number: 4508620Logbook(s): 

• CLOG
• ELOG

Entry Makers: dchriBody: 

I was working with 2L25 heater when the cold box tripped. I assume the heater readback is stuck due to the configuration I had it in when the CHL auto system took charge. Because I do not fully understand CHL's systems or Auto responses, I am going to leave it as is.

2L25 JT valve is in a similar situation. However, with 2L25 JT at 29% I can assure it is closed (as I believe is indented)

Log Number: 4508619Logbook(s): 

• SRFLOG
• CLOG
• ELOG
• RFLOG

Entry Makers: dchriBody: 

Was working in 2L25 during the trip

JT, RF, and heaters have been properly backed out of

... I do not believe it was anything I was doing to make the cold box trip

Log Number: 4508618Logbook(s): 

• ELOG

Entry Makers: lrichardBody: 

I'll wait to hear from Cryo as to when we can turn SL RF back on.

Log Number: 4508616Logbook(s): 

• ELOG

Entry Makers: lrichardBody: 

PEM000802 keeps alarming intermittently but clears (Fig. 1). There are other minor Power alarms for CUP and South Access buildings (Fig. 2).

Log Number: 4508615Logbook(s): 

• MOLLER
• ELOG
• INCLOG

Entry Makers: mussonBody: 

PM

Another opportunity to optimize the low-end performance of the '0L02 BCM (DR-based).
Figure 1: '0L02 settings prior to test
Figure 2: Response to 2nA + 8nA then 2nA:
Pre Gain 1 = 30
Pre Gain 2 = 50
Mag Div by 2^n = 0
K(IQ) = 3
K(mag fil) = 8

Figure 3: No beam with Booster off then on, resulting in 10dB of SNR reduction (factor of 3).

Log Number: 4508614Logbook(s): 

• ELOG

Tags: 

• Autolog
• MCC8am

Body:  */ ATLis Comments Posted 18:00 Wednesday June 03 through 18:00 Thursday June 04 AES DC power Systems Investigate 20A MQK7S10, MQK6R09, MQK8A23

2026-06-04 11:06 - Mark Kissinger

Log Number: 4508609Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: RF was turned on in:
R02
R03
R04
R12
R13
R14
R15
R17
R18
R19
R1A
R1B
R1C
R1D
R1E
R1F
R1G
R1H
R1I
R1J
R1K
R1L
R1N
R1O
R1P
R1Q

Log Number: 4508606Logbook(s): 

• ELOG

Tags: 

• Autolog

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 = 8.784 A/s
ARC4A Ramp Rate = 10.118 A/s
ARC6A Ramp Rate = 9.299 A/s
ARC7A Ramp Rate = 9.277 A/s
ARC8A Ramp Rate = 11.432 A/s
ARCAA Ramp Rate = 11.712 A/s
LAM1C Ramp Rate = 8.295 A/s
LAM3C Ramp Rate = 11.498 A/s
RSEP8A Ramp Rate = 10.544 A/s
RSEP9A Ramp Rate = 4.188 A/s
XSEP2T Ramp Rate = 5.814 A/s
XSEP4T Ramp Rate = 5.193 A/s
XSEP6T Ramp Rate = 9.123 A/s
XSEP8T Ramp Rate = 16.057 A/s
XSEPAT Ramp Rate = 16.234 A/s

Log Number: 4508604Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: 

The following box supplies were TURNED ON AT SET POINT 1 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 = 8.784 A/s
ARC4A Ramp Rate = 10.118 A/s
ARC6A Ramp Rate = 8.810 A/s
ARC7A Ramp Rate = 9.277 A/s
ARC8A Ramp Rate = 11.432 A/s
ARCAA Ramp Rate = 10.811 A/s
DOG1E Ramp Rate = 3.430 A/s
DOG2E Ramp Rate N/A
DOG3E Ramp Rate N/A
DOG4E Ramp Rate N/A
DOG5E Ramp Rate N/A
DOG6E Ramp Rate N/A
DOG7E Ramp Rate N/A
DOG8E Ramp Rate N/A
DOG9E Ramp Rate N/A
LAM1C Ramp Rate = 6.221 A/s
LAM3C Ramp Rate = 10.06

Log Number: 4508603Logbook(s): 

• ELOG

Body: 

Slowly brought up ARC1, ARC3, ARC5, ARC7, ARC9, and RSEP9 to 12Gev setpoints. We monitored their readbacks and associated shunt modules. We have issues with the ARC5 shunt MXD5R01 not responding to setpoint and driving the maximum current. This module will most likely need to be swapped. We are also having a communication dropout at the end of the NL with IOCNL3MAG for shunts in that area. We will opportunistically swap the IP pack for the shunts on that pack. We also ran into a magnet overtemp on ARC9 MJA909.

-O'Brien, Banks

Log Number: 4508602Logbook(s): 

• MOLLER
• ELOG

Tags: 

• Moller
• PD

Entry Makers: jonesgaskelldwineskashydougberdnikciprianBody: 

Hall A techs removed cryo-mirror can from BUP. Hall A techs poured grout for Main detector and Barrite wall railing support bases. Hall A techs connected bellows 5 to Drift pipe.

Log Number: 4508600Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: High Voltage was turned on for:
R02
R03
R04