| ID |
Date |
Author |
Category |
Type |
Subject |
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103
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Monday, February 20, 2017, 15:58 |
Keith C Ng | M9 | Development | t2 m9 job wrap up |
Restored shielding to T2 M9 void, blocks seem more crooked compared to previous years. |
| Attachment 1: 20170220_t2m9alignment_P1030616.JPG
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| Attachment 2: 20170220_t2m9alignment_P1030621.JPG
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116
|
Monday, March 26, 2018, 15:57 |
Keith C Ng | M9 | Maintenance | t2 m9 laser tracker alignment |
Removed all Leica tracker targets from M9 pit, I will proceed with blanking off T2 exit port sometime this week. Alignment group has taken possession of their laser equipment and the target jigs. |
|
115
|
Wednesday, March 21, 2018, 15:22 |
Keith C Ng | M9 | Repair | t2 m9 laser tracker jigs |
Installed the remaining laser tracker jigs for beam lines. No issues. Made sure 8" target the mounting poles did not interfere with each other and pin drive was engaged with no issues.
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| Attachment 1: 20180321_t2m9_P1030966.JPG
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| Attachment 2: 20180321_t2m9_P1030967.JPG
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| Attachment 3: 20180321_t2m9_P1030968.JPG
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117
|
Tuesday, March 27, 2018, 15:08 |
Keith C Ng | M9 | Standard Operation | t2 m9 port blank off |
1. Blank off installed 11:40 with Dan McDonald, east spring ear looks 'deeper" than west.
- Reused all hardware from last install, most active hardware was around 10 mSv/h on contact
- Zero point was at the 1/2 turn marker pen mark
- Installed at 1.5 turns from "finger tight" zero.
2. Spring eye zero set on a spare flange with spare pins.
- backed off 1/2 turn then mounted to exit port.
- tightened .5 turn to get to zero, then 1.5 turns on east and west sides to seal, in increments of .5 turns alternating.
3. Called Edi to start pumping on T2 at 12:50 |
| Attachment 1: 20180327_t2m9_P1030978.JPG
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| Attachment 2: 20180327_t2m9_P1030979.JPG
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118
|
Thursday, March 29, 2018, 15:15 |
Keith C Ng | M9 | Maintenance | t2 m9 port blank off |
Today leak checked the M9 exit port with Edi and we found no leaks. The usual delayed helium response in the M20/Collimator B/ M8(?) area is still persistent, however Edi says the vacuum level at T2 is the same as before.
Shielding should be restored next week.
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114
|
Friday, March 16, 2018, 13:39 |
Keith C Ng | M9 | Maintenance | t2 m9 port inspection |
Video imaged T2 port post blank off removal, looks roughly the same as last year. Knife edge looks clean.
Attached composite photo of flange face, ring is a stand off to maintain focus distance to camera. Also attached partial composite image of 2017 video inspection. |
| Attachment 1: 2018_t2m9flangeinspection2.jpg
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| Attachment 2: 2017_t2m9flangeinspection.jpg
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34
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Wednesday, February 06, 2013, 16:33 |
Keith C Ng | Primary Beamlines | Maintenance | t2 monolith measurements |
Beam lines took measurements of top of T2 using Leica Total Station. Required no crane activities over 1A blocks.
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| Attachment 1: 20130206_t2alignmeas_IMG_0140.JPG
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106
|
Thursday, July 27, 2017, 09:02 |
Keith C Ng | Primary Beamlines | Development | test |
test |
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90
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Friday, March 04, 2016, 16:05 |
Keith C Ng | Primary Beamlines | Development | vault beamline 4 disassembly |
Attempted to remove RH parts between Q1, 2 and monitor vacuum box. Removed Q1 to monitor box parts, could not remove monitor to Q2 parts, pin drive and indium ring are stuck in place. Indium joint is severed however. Collar was removed.
East leg of pin drive was bent trying to remove the stuck indium ring, it is stuck to the monitor box.
Recommend to proceed with removal of magnet regarless of the current state of the indium ring.
Pails with RH parts marked 1384, 1385, 1386 and stored in north end of vault tunnel on grey shelf. RPG storage book updated to reflect this. |