 Tuesday, June 28, 2016, 08:32, Isaac Earle, Other, Other, Active Sump, RH MH Hot Cell Lab Active Sump Overflow
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A call was received from the MCR at approximately 21:30 on Monday June 27th to report that active drains in the east end of the Meson Hall were
backing up and overflowing. I came in and found the leak coming from a broken spray nozzle in a sink in the rad waste area. The leak was stopped
at which point there were puddles between 1-2m diameter around the active sump top flange, the drain directly south of the warm cell water windows, and |
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Tuesday, June 28, 2016, 16:28, Isaac Earle, Other, Other, Active Sump, RH MH Hot Cell Lab Active Sump High Level Sensor Test
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The high level sensor for the Meson Hall Hot Cell Lab Active Sump was tested today and worked as expected. When the sensor is tilted (as
occurs when the water level rises above it) an audible alarm sounds in the hot cell lab, and the Safety Panel in the MCR also alarms with "MHESA B1
RCR1 RM 6 WARN" displaying NOT OK. This alarm sounds every 3 minutes in the MCR until the PLC outside of the RCR lab is reset. When the |
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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, May 15, 2017, 16:55, Isaac Earle, Other, Target 2, Target, T2 profile monitor actuation issue
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On Thursday May 11th operators attempted to move the T2 profile monitor (T2-MK2) to the IN position but were unsuccessful. The monitor would
leave the OUT limit, but would not reach the IN limit. This was repeated 2 times. The air amplifier was inspected and nothing out of the ordinary
was noted. The T1 profile monitor was tested and was working properly. At the time it was suspected that the monitor cassette had become dislodged |
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Thursday, July 27, 2017, 08:57, Isaac Earle, Other, Target 2, Cooling, Failed T2CS:SVSEC valves investigation
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The three failed T2 cooling system secondary side solenoid valves were tested yesterday to try to determine the problem. The test steps are
detailed below:
New spare valve (NSV) produced audible "click" and valve was seen to physically open when 24V DC driving voltage was applied
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Thursday, November 01, 2018, 13:57, Keith C Ng, Other, Other, Other, nuclear venillation in hot cells not working
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Randomly checked on the nuclear ventilation for the Meson Hall Hotcells and discovered they were not running again (both magnahelic gauges displayed
zero). Attempted to restart the fan manually and the control box seems to not be working. Matt McClean has been contacted and they will look into the problem.
The nuclear ventilation is currently not running in the RHMH hot cells. |
Monday, January 20, 2020, 16:07, Isaac Earle, Other, Other, Other, Second 55-gal drum moved to cyclotron east vault tunnel 
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The second (and final) 55 gallon drum containing active items from the Meson Hall East Hot Cell was transported today from the Warm Cell to the
Cyclotron East Vault Tunnel. The updated form is attached. |
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Thursday, April 14, 2022, 14:38, Adam Newsome, Other, Target 2, Diagnostics, Issue with Protect Monitor SHV Cable
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Diagnostics group (Shengli Liu) noted a lack of connectivity between control panel and T2 Protect Monitor via the high voltage cable. Upon inspection
it was noted:
The cable was very brittle due to radiation exposure and it was cracking in multiple places
In the SHV connector, the |
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Wednesday, June 08, 2022, 08:59, Adam Newsome, Other, Target 2, Cooling, T2 flow rate sensor (BL1A:T2CS:FGTGT ) - warning and trip limits adjusted
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See fault 14966:
Normal
0
false
false
false
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Wednesday, July 06, 2022, 12:52, Adam Newsome, Other, Other, Hot Cell, Potential hot cell window oil leak
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Some oil was noticed around the hot cell window, on the control panel, and on the ground below the control panel. A leak is suspected.
Suggest tightening all bolts to specified torque along the window, and monitoring overflow oil level (position today was marked). If the problem |
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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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Tuesday, July 18, 2023, 09:14, Adam Newsome, Other, Target 1, Cooling, T1 Cooling Package: target flow (FGTGT) sensor noise issues
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Between 1:00 pm and 6:00 pm on July 17, 2023, the T1 target cooling water flow rate sensor exhibited some noise which resulted in it dropping below the
warning/trip limit. The control room requested that the threshold values be lowered - permission was granted. The thresholds were set to 2.3 gpm for both
warn and trip levels. See attached screenshot from EPICS sensor data. The occasional spikes and dips continued throughout the night fairly consistently. |
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Wednesday, April 03, 2024, 10:48, Adam Newsome, Other, Other, BL1A Holding Tank, BL1A Holding Tank - water level check
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As of 2024-04-03, the BL1A Holding Tank water level is approximately 580L. It is recommended to drain the tank prior to the start of the operating year.
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Friday, June 28, 2024, 15:44, Albert Kong, Other, Other, Transfer Flask, Inspection of Primary Target Transfer Flask
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Normal
0
false
false
false
EN-CA
JA
X-NONE
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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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Thursday, October 10, 2024, 12:24, Adam Newsome, Other, Other, Hot Cell, Safety Walkaround Complete - Meson Hall HC/WC Area
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A safety walkaround was completed for the Meson Hall Hot/Warm Cells.
The resulting spreadsheet can be found on DocuShare as Document-242733.
Main deficiencies identified: |
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Friday, November 04, 2011, 13:36, Isaac Earle, Maintenance, Target 2, Target, Kaon Target (Training)
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Moved Kaon Target from storage pit to remote handling hot cell using flask as training exercise. Safety surveyor scanned storage pit
area (wide flanges: clean, pit floor: 50cpm). Returned flask to hot cell lab floor and covered storage pit. |
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Tuesday, December 20, 2011, 09:54, Isaac Earle, Maintenance, Target 1, Target, Replaced T1-MK1 Target Ladder
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Replaced T1-MK1 target ladder with the new ladder design which has an integrated upper slide plate (2 less sealing locations) and no c-seal grooves.
C-seals replaced with aliuminum delta seals.Transfered all target cassettes to new ladder in the same positions. Performed helium leak check
at interface with bellows flanges and all cassette locations. No leaks detected. |
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Thursday, December 22, 2011, 15:27, Isaac Earle, Maintenance, Target 1, Target, T1-MK1 Transferred to Storage Pit
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T1-MK1 target transferred from hot cell to storage pit position #3 to free up the hot cell in preparation for shut-down activities.
Current device locations in storage pit:
Pos 1: TNF Resin Can |
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Thursday, January 05, 2012, 10:18, Isaac Earle, Maintenance, Target 2, Cooling, Swapped Resin in T2 Cooling Package
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Drained T2 cooling package water, collected sample and delivered to RPG. Swapped resin can, refilled, and restarted cooling package.
After 6 hours can inlet at 10.3MΩ *cm,
can outlet at 10.5MΩ*cm electrical resistivity. |
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