Aggregator

Log Number: 4467914Logbook(s): 

• POLOG
• ELOG

Entry Makers: brukerBody: 

Simulations predict one should be able to find the smallest beam size in the VWien by scanning MFX2I01/1I03 and setting MFX0I01 to three different values for each of these settings and for Wien on/off. Why three values: It doesn't need a full lens scan as you would do it for phase-space reconstruction, but a single MFX0I01 setting isn't enough because MFG1I04A/B is not a thin lens; the beam size at the harp is ambiguous. It would be unambiguous with MFG1I04A/B off, but this is hopeless because of the DP aperture.

Log Number: 4467913Logbook(s): 

• ELOG

Body: 
HYST AREA Version 7-0 has FAILED to cycle:

MQC2A05 -- W202B17 -- wa2mag -- Failed to set after 2 cycle attempts
MQA4A04 -- W202B17 -- wa2mag -- Failed to set after 2 cycle attempts
MQA6A04 -- W202B17 -- wa2mag -- Failed to set after 2 cycle attempts
MBC6A04V -- W202B17 -- wa2mag -- Failed to set after 2 cycle attempts
MBT2A05V -- W202B17 -- wa2mag -- Failed to set after 2 cycle attempts
MQA8A04 -- W202B17 -- wa2mag -- Failed to set after 2 cycle attempts
MBC4A04V -- W202B17 -- wa2mag -- Failed to set after 2 cycle attempts

Log Number: 4467910Logbook(s): 

• ELOG

Body: 

We're in the process of coordinating the timing of this work. Will update ATLis with scheduling details as they solidify. Be sure the PTW is on-issue before proceeding.

Log Number: 4467909Logbook(s): 

• ELOG
• INCLOG

Body: 

Flashed new firmware to vacuum controls in zone NL26 (NL26SRFVAC)
-Ver x0305 (Latest 3-Valve firmware since 1L26 no longer being upgraded)

Log Number: 4467908Logbook(s): 

• ELOG

Body: 

Looks good. For each job before proceeding please be sure that...
1) the relevant PTW is on-issue
2) the work has been coordinated with the MCC
3) there is a comment on this ATLis regarding what is about to be done

Thanks.

Log Number: 4467907Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
1L09-4
Username: latshaw
Date/Time: 01-30-26_14:05:44
RF Status: Good
Tuner Status: Bad
Comment: C75 Bypassed - tuner not checked, did NOT take zone into RF
Special Instructions:

Maintenance Tag: Component: Other

Log Number: 4467903Logbook(s): 

• POLOG
• ELOG

Body: 

With the chiller temperature set to 18 Celsius, the V-Wien negative HVPS tripped off within 56 hours after being set for +90 deg spin rotation.
Preliminary observations show that the elapsed time between trip offs seems to be longer as the chiller temperature is decreased. The pressure in the Wien vacuum chamber increases with temperature, leading to HVPS trips that result in beam line pressure spikes into the 100 micro-A range (was reported by the ion pump controllers).

Log Number: 4467901Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
1L09-4
Username: latshaw
Date/Time: 01-30-26_13:42:22
RF Status: Good
Tuner Status: Good
Comment: C75 Unbypassed - Testing tuner 4 to see if it is no longer frozen.
Special Instructions:

Maintenance Tag: Component: Other

Log Number: 4467892Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl06

Saved: bruker 01-30-26 13:31:44 {A:5 B:3 C:1 E:340 A=Tune B=BS C=BS D=BS 0R08=0.00 0R08 dump in. A dump(s) in.

Log Number: 4467884Logbook(s): 

• POLOG
• ELOG

Entry Makers: suleimanBody: 

Controlled access to CEBAF laser enclosure to investigate bad Moller PITA scans.

-First problem found was that RTP Box 2 was being erroneously triggered with nHelicity. Riad fixed that.

-Second problem found was misconnection of RTP Box 2's outputs

-Per the Crystal Graphic, Box 2's positive output (labeled V3+) is supposed to be connected to the bottom of crystal 2, and Box 2's negative output (labeled V4-) is supposed to be connected to the top of crystal 2. (See Figure 1)

Log Number: 4467883Logbook(s): 

• ELOG

Body: 
HYST AREA Version 7-0 has FAILED to cycle:

MQC2A05 -- W202B17 -- wa2mag -- Failed to set after 2 cycle attempts
MQA4A04 -- W202B17 -- wa2mag -- Failed to set after 2 cycle attempts
MQA6A04 -- W202B17 -- wa2mag -- Failed to set after 2 cycle attempts
MBC6A04V -- W202B17 -- wa2mag -- Failed to set after 2 cycle attempts
MBT2A05V -- W202B17 -- wa2mag -- Failed to set after 2 cycle attempts
MQA8A04 -- W202B17 -- wa2mag -- Failed to set after 2 cycle attempts
MBC4A04V -- W202B17 -- wa2mag -- Failed to set after 2 cycle attempts

Log Number: 4467881Logbook(s): 

• ELOG

Body: 

HYST AREA Version 7-0 has successfully cycled the following:

MBT1A33V
MQA3A26
MBC3A26V
MQA5A26
MBC5A26V
MQA7A26
MBC7A26V
MQA9A26
MBC5A25H
MQA7A25
MBC7A25H
MQA9A25
MBC9A25H
MQB1A33
MBC9A24V
MBT1A30V
MQB1A31
MBT1A31H
MQA3A25
MBC3A25H
MQA5A25
MQA3A24
MBC3A24V
MQA5A24
MBC5A24V
MQA7A24
MBC7A24V
MQA9A24

Total Time: 2.983 mins

Log Number: 4467875Logbook(s): 

• ELOG

Body: 

HYST AREA Version 7-0 has successfully cycled the following:

MQA5A23
MBC5A23H
MBC7A23H
MBC9A23H
MQB1A29
MQA7A22
MBC7A22V
MQA9A22
MBC9A22V
MQB1A28
MBT1A28H
MQA3A23
MBC3A23H
MQA9A21
MBC9A21H
MQB1A27
MBT1A27V
MQA3A22
MBC3A22V
MQA5A22
MBC5A22V
MQB1A26
MBT1A26H
MQA3A21
MBC3A21H
MQA5A21
MBC5A21H
MQA7A21
MBC7A21H

Total Time: 3.150 mins

Log Number: 4467869Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl06

Saved: bruker 01-30-26 12:43:20 {A:5 B:3 C:1 E:340 A=Tune B=BS C=BS D=BS 0R08=0.00 0R08 dump in. A dump(s) in.

Log Number: 4467866Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl06
Data from: /usr/opdata/burt/allsnap/01-23-26_08:59:47
Restored file: /tmp/01-30-26_12:25:16.snap

Log Number: 4467865Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl06

Saved: bruker 01-30-26 12:24:59 {A:5 B:3 C:1 E:340 A=BS B=BS C=BS D=BS 0R08=0.00 0R08 dump in. A dump(s) in.

Log Number: 4467860Logbook(s): 

• POLOG
• ELOG

Entry Makers: suleimankortzeBody: 

Yesterday MOLLER PITA scans showed constant charge asymmetry versus PITA voltages. With Jim, we checked the connections on the laser table. We found two wrong connections:

Log Number: 4467859Logbook(s): 

• ELOG

Body: 

HYST AREA Version 7-0 has successfully cycled the following:

MQA7S04
MBC9S02H
MBC9S02V
MQA3S04
MBDBS01H
MBDBS01V
MBT1S05H
MBT1S05V
MQB1S06
MQD9S02
MQA9S02
MQC9S00
MBC7S03V
MQA9S01
MBC9S01H
MBC9S01V

Total Time: 1.900 mins

Log Number: 4467858Logbook(s): 

• ELOG

Body: 

HYST AREA Version 7-0 has successfully cycled the following:

MQA3S03
MBC3S03H
MBC5S03H
MBC7S02H
MBC7S02V
MBT1S02H
MBT1S02V
MQA3S02
MBC3S02H
MBC3S02V
MBC5S02H
MQA5S01
MBC5S01H
MBC5S01V
MQA7S01
MBC7S00H
MBC7S01V

Total Time: 2.000 mins

Log Number: 4467856Logbook(s): 

• ELOG

Body: 

Currently LCW is on ZA7S03, YR9S05 & YBBS04. YBBS06 has LCW shut off