 Thursday, December 07, 2017, 13:54, Isaac Earle, Development, Other, Other, Waste pails transferred from warm cell storage bunker to rad waste pit 
|
Six 5 gallon pails were transferred this morning from a temporary storage bunker in the Warm Cell to the Rad Waste Pit for long term storage. The
pails contain various BL1A active waste from the East Hot Cell including dozens of irradiated beryllium and graphite targets. The field from the
pails ranged from 0.1 to 9mSv/hr at 0.5m. The work was performed according to the clean-out procedure (Document-142965). |
|
Wednesday, March 28, 2018, 10:12, Isaac Earle, Standard Operation, Other, Other, Five waste pails moved to East Vault Tunnel for storage
|
Five 5 gallon metal pails with active waste were moved from the Warm Cell to the Cyclotron East Vault Tunnel today for long term storage.
The pails were labeled with radioactive item tags and storage item numbers (1442 through 1446). The pails contain used resin from T1, T2, and STF,
as well as one pail with active metal parts. |
|
Friday, April 13, 2018, 14:21, Isaac Earle, Maintenance, Other, Other, M20 beam blocker MRO and T1/T2 final checks
|
The M20 beam blocker main shaft seals were replaced as per the T1/T2 target device maintenance schedule. Both air cylinders were found to be leaking
past the seals, and the blocker would not actuate in the hot cell even with 100psi (max site air) so they were also replaced. With the new cylinders
the blocker actuated smoothly at about 45psi. It is recommended that the air cylinders be replaced every second service (once per 10 years). |
|
Tuesday, August 28, 2018, 11:16, Isaac Earle, Standard Operation, Other, Other, South TNF Holding Tank water released
|
The water in the South TNF Holding Tank was released today under work permit #C2018-08-28-3. The tank contained approximately 100L from the
T1 cooling package (drained Aug 16, 2018) and 350L from the 500MeV system (drained April 23, 2018 by Steve Sapriken). |
|
Thursday, October 25, 2018, 08:58, Keith C Ng, Repair, Other, Other, T1 collimator valve solenoid coil replaced again
|
On 23rd October we restarted the T1 and T2 water packages after the mini shutdown and after the site power outage.
The rotary collimator was reporting no water flow and it was assumed the valve coil ( |
|
Thursday, November 01, 2018, 13:57, Keith C Ng, Other, Other, Other, nuclear venillation in hot cells not working
|
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. |
|
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
|
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. |
|
Monday, January 20, 2020, 16:07, Isaac Earle, Other, Other, Other, Second 55-gal drum moved to cyclotron east vault tunnel
|
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. |
|
Monday, February 10, 2020, 14:51, Isaac Earle, Maintenance, Other, Other, T1-MK2 target and M9BB moved
|
The T1-MK2 target was moved from the hot cell to Hole #5 in the storage pit. The M9 beam blocker was then moved from the beamline to the
hot cell for MRO work. A field of 14.4mSv/hr was measured at 0.5m from the beam blocker during removal. |
|
Wednesday, March 04, 2020, 13:42, Ron Kuramoto, Repair, Other, Other, B/L 1A vacuum air leak repair
|
A 4” Marmon aluminum blank-off flange and o-ring were replaced on the south port of the T1 target monolith vacuum vessel. This port
was accessed from the 1A Service Tunnel were the repair took place.
|
|
Monday, March 23, 2020, 16:13, Isaac Earle, Maintenance, Other, Other, M9 beam blocker MRO completed
|
M9 beam blocker MRO work was completed in the hot cell today. This included replacement of the main shaft seals and replacement of the air cylinders.
Actuation was tested after replacement and the blocker moved smoothly through the full length of travel with approximately 45psi air pressure. It
is ready for transport back to the beamline. |
|
Wednesday, July 06, 2022, 12:49, Matthew Gareau, Repair, Other, Other, Helium line damage, and hotcell window oil leaking
|
Today myself and Adam Newsome started the leak detection steps for a target exchange and notice that the Helium line was not connected/broken from inside
the hotcell.
A new line will need to be installed and the line attached to the helium wand. |
|
Tuesday, August 23, 2022, 14:36, Adam Newsome, Standard Operation, Other, Other, BL1A Holding Tank - Level Check
|
| The water level inside the BL1A active water holding tank was checked today (Aug. 23, 2022). The tank is essentially empty at this time. |
|
Tuesday, February 21, 2023, 16:56, Albert Kong, Maintenance, Target 2, Other, M20 BB moved to meson hall hot cell roof
|
The M20 beam blocker was moved from the T2 monolith to the meson hall hot cell with the remote handling flask (completed ~4pm).
This operation was performed in preparation for M20 maintenance (main shaft o-ring replacement + air cylinder re-lubrication).
RPG surveyors measured 20,000 CPM from swiping the surface of the beam blocker shaft, and measured 25 mSv/hr on contact with the beam blocker. |
|
Friday, March 03, 2023, 16:00, Albert Kong, Maintenance, Target 2, Other, M20 Return to T2 Monolith + Vaccum Leak / T1-T2 Valve Re-inspection
|
We moved M20 back to the T2 monolith and re did the connections for air + limit switches + T2 profile monitor air.
Note: T2 profile monitor electronics sparked when we moved M20 out initially. (Update: Shengli Liu from probes group performed a test on the T2 |
|
Tuesday, October 17, 2023, 14:25, Albert Kong, Maintenance, Other, Other, T1/T2 Air Amplifier Spool O-Ring Servicing
|
Today we re-lubricated the o-rings on the top air amplifier for T1/T2, and replaced the o-rings on the bottom air amplifier with new and also lubricated
o-rings.
We used Haskel lubricant #50866. |
|
Wednesday, July 17, 2024, 15:05, Adam Newsome, Standard Operation, Other, Other, Safety Walkaround Complete - Meson Hall HC/WC Area
|
A safety walkaround for July 2024 was completed by A. Kong.
Results can be found in the master
spreadsheet |
|
Tuesday, April 16, 2019, 15:35, Keith C Ng, Repair, Other, M9, M9 project post shutdown summary
|
Completed work at m9 beam line:
- Removed existing service stand and associated cable and water services. Legacy b1 water services still need to be removed for future magnet installation.
Old service stand is currently in warm cell waiting for disposal. |
|
Friday, February 28, 2020, 09:06, Isaac Earle, Development, Other, M9, M9 Q1Q2 service stand floor plate installed
|
The M9 service stand floor plate (TB23351) was installed in the M9 pit yesterday. Prior to installation all 5 threaded inserts were tested
using a 1/2"-13 stud tool on an RH pole. The west most hole (shown in red below) had damaged threads and the stud could only be threaded in
2 turns. All other locations (shown in green) had usable threads with 6-8 full turns possible with the stud tool. The plate was installed using |
|
Wednesday, March 11, 2020, 10:29, Isaac Earle, Development, Other, M9, M9 Q1Q2 service stand foot plate installed
|
The M9 Q1Q2 "foot" plate (TB23363) has been installed over the floor plate. A nominal gap between the plates of 1/2" was set
before lowering the plate, it was then leveled using the three adjustment bolts resulting in a larger gap. After leveling, the plate was lifted to
remove the spirit levels and lock the position of the leveling bolts. The plate was then re-lowered and the tiedown bolt assemblies (TB23383) were |
|