 Monday, August 11, 2014, 16:57, Isaac Earle, Repair, Target 2, Other, Air Amplifier Increased Cycle Rate
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On Friday August 8th Ron Kuramoto observed that the Meson Hall air amplifier cycle speed had increased. Cycle time measurements were taken on Monday
August 11th. The lower amplifier was found to be cycling 17 times per minute, and the upper air amplifier 16 times per minute (approximately 4s cycle
period). The cycle period for both amplifiers was measured in June 2012 and found to be approximately 25s. Note that a cycle is defined as |
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Tuesday, November 24, 2020, 15:10, Isaac Earle, Standard Operation, Target 2, Target, Additional targets added to T2-MK1 ladder
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The following work on the T2-MK1 target was completed sporadically over the last few months:
Sept 22: |
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Thursday, August 22, 2024, 15:16, Adam Newsome, Standard Operation, Other, Active Sump, Active sump filled ~600L with grey water from RCR1 sump replacement
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During a replacement of the RCR1 active sump (mechanical services group), approximately 600L of non-active grey water was released into the RH active
sump. At this time, this should be all of the water in the RH sump (approximately 600L total). |
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Wednesday, July 06, 2016, 13:31, Isaac Earle, Other, Other, Active Sump, Active Sump RCR Lab and MCR Alarms Not Working - Suspect Controls Issue
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Further tests were done on the active sump high level float switch today. The switch was triggered 1 time by filling the sump, and approximately
8 times by tilting the sensor manually. A local alarm sounded in the hot cell lab each time, but only one time in the RCR Lab and MCR (this occurred
on the final trial). Fault report #9099 has been submitted to Controls Group. Although the existing float sensor did cause a local alarm when |
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Monday, September 09, 2024, 16:31, Albert Kong, Standard Operation, Other, Active Sump, Active Sump High Level Sensor Testing
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The active sump high level sensor was tested and correctly alarmed locally. However the alarm in the MHESA RCR lab did not make any sound and no notification
was recieved at the main control room. After some investigation, it is believed that the RCR lab alarm 'had already produced a notification at the control
room and so no new notification was produced by testing the remote handling sump. Alternatively, the RCR sump alarm may have been silenced in the control |
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Monday, August 22, 2022, 09:01, Adam Newsome, Standard Operation, Other, Active Sump, Active Sump Draining
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On Aug. 18, 2022, Operations informed RH group that an alarm activated for the full status of the MHESA B1 RCR1 Lab holding tank. Additionally another
alarm was reported in the RH control room regarding the RH sump full (Southwest Meson Hall Extension - Remote Handling area). However, there is an alarm
signal for the RH sump that was seen as OK at the MHESA Lab HMI. |
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Tuesday, January 17, 2023, 13:49, Adam Newsome, Repair, Other, Active Sump, Active Sump - Valve V6 Leaking
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It was noticed today (2023-01-17) that the valve V6, used in draining the BL1A Holding Tank to the Active Sump, was leaky. This valve should be replaced
as soon as possible. It has been added to the MS
Planner maintenance tasks list. |
Tuesday, January 03, 2023, 07:42, Adam Newsome, Other, Other, Active Sump, Active Sump - Level Check 
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| The sump level was checked by Robin Swanson on Dec. 31, 2022. It was essentially empty - see attached photo. |
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Wednesday, January 14, 2015, 15:06, Isaac Earle, Standard Operation, Target 1, Other, Active Item Stored in East Hot Cell
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The active item discovered on January 9, 2015 outside the BL1A bootbox has been moved to the Meson Hall east hot cell for storage. The item was
analyzed by RPG and the radiation was found to be coming from activated metal contained by dried paint in the bottom of a plastic container. The
solidified paint puck was removed from the container which is not active. The item is approximately 20microSv/hr at 0.5m, and 1.3mSv/hr on contact. |
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Tuesday, December 17, 2019, 12:39, Isaac Earle, Standard Operation, Other, Other, 55 gallon drum and old M9 service stand moved to Rad Waste Pit
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The following items were moved today from the Warm Cell to the Rad Waste Pit for long term storage:
1. A 55 gallon drum containing various active components from the East Hot Cell. The drum was labelled on the body and lid with the identification
number RWC-55-01-2019. |
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Thursday, November 06, 2014, 17:22, Ron Kuramoto, Repair, Target 2, Cooling, 1AT2, faulty Thermister water out temperture
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Summary: |
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Thursday, November 06, 2014, 17:18, Ron Kuramoto, Repair, Target 2, Cooling, 1AT2 Collimator B, faulty Thermister water out temperature
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On 14Oct2014, the 1AT2 Collimator B water outlet temperature rose to 100o C.
Troubleshooting the T2 Collimator B water out temperature (T7) by swapping it's analog
signal in PIE box #2 with T2 Collimator A water out temperature (T6) to see if problem follows. See if unplugging T7 signal causes Safety Page SV7 1A Collimators |
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Thursday, October 16, 2014, 17:44, Ron Kuramoto, Repair, Target 2, Water Leak, 1A Tunnel T2 Cu-ALCW water leak repair 6x
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On Oct 7th,
during the Mini Shutdown, the T2 cooling package was uncovered to investigate the Cu-ALCW water leak dripping into the 1A Tunnel. |
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Thursday, September 11, 2014, 15:36, Ron Kuramoto, Repair, Target 2, Water Leak, 1A Tunnel T2 Cu-ALCW water leak
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On Sep. 3rd during the 6 hr maintenance day, Doug Preddy
& I went into the 1A tunnel under “controlled access” to investigate a water leak that triggered the Water Detection Sensors. It was also noticed that the Cu-ALCW tank level was losing water. |
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Wednesday, July 08, 2015, 16:21, Isaac Earle, Development, Target 1, Target, 0.003" 347 SS Sheet for T1/T2 Targets Received
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A 5lb roll of 347SS sheet was received today. This alloy is to be used for the target windows of the new T1 and T2 beryllium target cassettes
that will be manufactured in the near future. The material was ordered from Alloys International (PO# TR206407). A mill spec report was included
with the material, a scanned copy is attached in PDF format. The roll will be stored in the meson hall RH hot cell lab office on the shelving above |
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Thursday, August 13, 2015, 09:47, Isaac Earle, Development, Other, Other, "Clamp A" disassembled and used to build clamp "TRH1257-#01"
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The 4" Marman flange clamp (IRH0001) labeled "Clamp A", as used in the testing detailed in Document-114623 Release 1, has been disassembled.
The parts were used to build a TRH1257 clamp which uses the new TRH1259 jaw with 0.480" jaw root width. This new clamp has been labeled
"TRH1257-#01", and will be tested with Helicoflex H-303654 seals in the near future. |
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Monday, March 14, 2022, 14:09, Adam Newsome, Maintenance, Target 2, Cooling, T2 cooling system: filled, tuned, leak-checked
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The T2 cooling system was refilled with water via the expansion tank until the tank level read approximately 38 cm.
The system pump was restarted. All sensors displayed acceptable nominal values. Demin flow was tuned to 1.0 gpm.
No leaks or abnormalities observed - system running normally. |
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Monday, September 09, 2024, 09:39, Albert Kong, Other, Target 2, Cooling, B1A:T2CS:FGSEC:RDFLOW noisy, CYCLOTRON Fault 17321
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Secondary flow sensor B1A:T2CS:FGSEC:RDFLOW on the T2 cooling station suddenly became very noisy at around 11 pm, 01 September 2024.
The sensor reading would fluctuate from 0-150 gpm which is beyond typical noise levels for these sensors (~2gpm).
The noise spontaneously ended at around 4 am, 05 September 2024. |
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