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ID |
Date |
Author |
Category |
Type |
Subject |
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119
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Tuesday, April 16, 2019, 11:19 |
Ron Kuramoto | Primary Beamlines | Repair | 1AQ14 B/L Flange Broken Thermocouple |
| On March 7,2019 the Thermocouple (TC) cable which monitors the temperature of the 1AQ14 B/L vacuum joint was broken when the iron shield block (Triumf Dwg D-3237 aka M8 Tongue block) was restored on the east of the T2 Monolyth. See attached photos. This TC (Omega #KTSS-116U-144) is attached to the 1AQ14 Indium ring seal (Triumf Ref Dwg TBP0372D) and should be replaced the next time this B/L joint is serviced.
The Controls Group has noted on the CCSC2, XTPAGE 17, that TW# B1-375 is broken. |
| Attachment 1: 1AQ14_FlgTC1_7Mar2019.jpeg
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| Attachment 2: 1AQ14_FlgTC2__7Mar2019.jpeg
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| Attachment 3: 1AQ14_FlgTC3_7Mar2019.jpeg
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120
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Thursday, April 25, 2019, 11:13 |
Keith C Ng | M20 | Repair | M20 Q2 repair notes |
See attached scan for repair notes regarding M20 Q2 during the 2019 winter shutdown. The repair method for M20 Q2 was instigated by Doug Preddy and Beamlines group. Cooling line was blanked off during the 2019 winter shutdown in order to keep the M20 beamline running without removing the magnet and doing a complete repair on the leaking coil. |
| Attachment 1: 2019_shutdown_m20_q2_repair_notes.pdf
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124
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Monday, February 24, 2020, 15:13 |
Keith C Ng | M9 | Repair | m9 q1q2 repair laser tracker shoot |
Beamlines shot the position of the M9 T2 port and B1 flange for setting the M9 test stand flanges today. We removed the target jigs after this was done. |
| Attachment 1: 20200224_m9project_P1040686.JPG
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| Attachment 2: 20200224_m9project_P1040688.JPG
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125
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Friday, March 06, 2020, 13:36 |
Keith C Ng | M9 | Repair | M9 B1 moved to warm cell |
The M9 B1 was removed from the M9 channel surveyed and moved to the remote handling warm cell for refurbishment.
The warm cell is currently locked. Remote Handling should be contacted if access is needed to B1.
A field map of B1 is attached as a pdf file. |
| Attachment 1: 2020_M9_B1_field_survey_out_of_channel.pdf
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129
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Friday, March 18, 2022, 12:12 |
Keith C Ng | Primary Beamlines | Repair | q15 repair |
beamlines replaced leaking insulator on q15, circuit #4. See updated pdf for replacement part and location. |
| Attachment 1: tbp0425d_revB_acad-magnetinsulatortopheaderassembly_w-2022_repairannotations.pdf
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| Attachment 2: InkedRH1_0044_LI.jpg
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| Attachment 3: RH1_0046.jpg
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| Attachment 4: RH1_0050.jpg
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| Attachment 5: RH1_0049.jpg
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131
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Monday, June 16, 2025, 09:23 |
Keith C Ng | M11 | Repair | M11 jaws box vacuum leak |
On June 3rd, a vacuum leak was detected via remote helium check line at the 1A rotary collimator/septum/m11 area. The beamline was uncovered and an extensive local leak check in the area was conducted over 4 days.
A significant leak was found at the M11 jaws box at the top near the rotary feed throughs. The leak coincided with M11 experimenters actuating the jaws box on Tuesday.
The leak was not repaired at this time, the jaws were jogged into a position that minimized the leak at the feedthrough and an additional turbo pump was installed on the M11 channel by vacuum group. No evidence of leaks were found at any of the suspected leak sites based on historical information (see below).
A summary of repair history for the septum/jaws box is presented below for planned future repair of the vacuum leak on the jaws box. Most of this information is compiled from Ron Kuramoto's shutdown notebooks, this is not an exhaustive search of Kuramoto's notes.
There is a suspected leak still present at the bellows between the septum and the rotary collimator and the confirmed leak at the jaws box. The septum magnet is disabled as the power supply was removed from the meson hall in ~2021. There is a spare vacuum box located on the top of the cyclotron vault, this vacuum box was intended to replace the current septum magnet should it catastrophically fail.
1992 - There is a leak on the septum vacuum box at the bellows that connects the septum to the rotary collimator. It was repaired with spray sealant (torr seal?).
1995 - The indium ring between the jaws box and M11 Q1 was changed normally. (note: the indium rings at the jaws box to m11 channel and the beamline to rotary collimator had been changed several times over the next few years)
1996 - The indium ring above was changed again due to a leak. The internals of the jaws box were pulled out to repair a feed through leak in the warm cell. They could not actually check the repair since they had no vacuum chamber to leak check the feed through. The aluminum wire seal sealing the flange was replaced with a rubber gasket and the entire assembly was replaced.
2000 - Suspected leak at the bellows, spray seal was attempted again. Reported as unsuccessful. Last entry found covering the septum.
2025 - Leak at the feedthrough found, not repaired/repair deferred. Mechanism parked where leak was minimized and additional pumping added.
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| Attachment 1: WIN_20250613_10_37_45_Pro.jpg
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112
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Tuesday, March 13, 2018, 15:36 |
Keith C Ng | M9 | Standard Operation | m9 alignment work |
Set up shielding canyon for M9 laser tracker job.
Fill shielding blocks are not removed yet, to be done tomorrow.
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117
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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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122
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Tuesday, September 24, 2019, 14:37 |
Keith C Ng | Primary Beamlines | Standard Operation | lead pig radiation survey |
Surveyed contents of storage flask located at TNF. The lid was lifted off roughly 12" up and a pole monitor was swept over the opening. The fields of the combined items in the flask were 9.84 mSv/h at 12-24". Extrapolated, the field is approximately 3.7 mSv/h at 1/2 m.
The flask contains an indium blank off plate, ISAC beam window and some miscellaneous used water fittings. The ISAC window is probably the largest contributor to the field.
A list of the contents and the dates the were placed into the flask are attached to the top of the flask lid. |
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130
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Friday, May 06, 2022, 11:27 |
Keith C Ng | Primary Beamlines | Standard Operation | 4V CM1 RH joint install |
2022 Apr 28 to 29:
Installed a new remote handling 4" indium joint for new beamline 4 north section. Issues were encountered in clearance between the downstream steering magnet and the compression collar of the joint. Joint installation itself went smoothly.
The drive screw is a 17mm hex instead of a 5/8". This was noted in the install of the blank off plate in 2016.
See attached pdf report for photos and more description. |
| Attachment 1: 2022_4v_cm1_rh_joint_install.pdf
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