 Thursday, April 03, 2014, 13:43, Isaac Earle, Standard Operation, Target 2, Target, T2 Profile Monitor OK
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T2 Profile Monitor actuation was tested today from the control room and all is working properly. The position (IN / OUT) also displays correctly.
To my knowledge nobody has looked at this system, so it is a mystery why it suddenly started working. This e-log will be updated if any explanation
is found. |
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Thursday, April 03, 2014, 16:35, Isaac Earle, Standard Operation, Target 1, Cooling, T1 Cooling Package Started
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The T1 cooling package was started around 2pm today. There was no change to the T1 volume vacuum during startup.
The package was inspected for water leaks: None found.
The demin loop flow (Q2) was adjusted to ~1.5gpm. |
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Monday, April 14, 2014, 15:30, Isaac Earle, Standard Operation, Target 2, Target, T2 Target Moved to Position 4
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The T2-MK2 target (currently installed in the beamline) was moved from position 0 to position 4 (10cm Be) using the portable control box.
The T2 cooling package was started after moving the ladder.
There was no change in the BL1A vacuum. The T2 expansion tank water level dropped slightly, as expected (around 1/16"), and was refilled |
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Tuesday, June 03, 2014, 22:56, Isaac Earle, Standard Operation, Target 2, Target, T2 Target Position Moves (Development Shift)
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The T2 target was moved from Position 4 to Position 0 at 11:15am so the profile monitor could be used during the development shift.
The T2 cooling package tripped regularly throughout the day on high flow while in position 0.
At 10:45pm the T2 target was returned to the previous running position: approximately 2mm above the nominal position 4 elevation (pot ratio fluctuating |
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Tuesday, November 18, 2014, 10:52, Isaac Earle, Standard Operation, Target 1, Active Sump, RH Hot Cell Lab Active Sump Released
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Release of the Remote Handling Hot Cell Lab active sump water was completed today by
Hua Yang. During the procedure fields of up to 0.50 micro Sv/hr were measured around the newly installed filter housing. After completion the filter was removed and replaced. The filter measured 450cpm on the |
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Friday, December 19, 2014, 14:35, Isaac Earle, Standard Operation, Target 2, Other, Amplified Air Shut Off
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The BL1A amplified air system has been shut off, and will remain off until required for BL1A start-up in Spring 2015 (the lower of the two units was
in use, with the upper unit on standby as a spare). |
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Monday, January 05, 2015, 15:08, Isaac Earle, Standard Operation, Target 2, Water Leak, Cooling Packages Re-Started; Suspect External Water Leak at T2 Package
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Pumping was restored to 1A today by Vacuum Group and the beam line returned to normal vacuum levels. Both cooling packages were started with no
change in vacuum (no water leaks inside the vacuum volume). The T2 package was left on for approximately 1 minute, and then the expansion tank level
was checked. Approximately 1cm of water was lost. The T2 package was turned off, and will remain off until the package can be inspected later |
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Monday, January 12, 2015, 16:35, Isaac Earle, Standard Operation, Target 1, Cooling, T1 & T2 MRO Status
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The following tasks have been performed at T1:
- T1 monolith painted using grey two part epoxy paint
- Video inspection taken while package running. Small leak from both valves on H.E. secondary side (video on Isaac's PC, too large to upload) |
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Wednesday, January 14, 2015, 13:32, Isaac Earle, Standard Operation, Target 1, Target, T1-MK2 Moved from B/L to Storage Pit
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The T1-MK2 target was transferred from the beam line to the storage pit in hole #5 using the transfer flask. A maximum field of 7.2mSv/hr was measured
at 0.5 meters from the target. A video was taken while the target was lifted from the monolith and can be found on Isaac's PC (too large to upload).
The blocks to the west and east side of the T1 monolith (level with the monolith) were swiped by Danka Krsmanovic and no contamination was found. |
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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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Friday, February 20, 2015, 13:55, Isaac Earle, Standard Operation, Target 2, Target, T1 & T2 Target Moves
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- The T1-MK1 target was moved from the hot cell to storage pit hole #3 (ready as T1 spare)
- The T2-MK2 target was moved from the beam line to the hot cell for inspection and in preparation for T2/M9 work this shutdown
- The target measured up to 90mSv/hr at approximately 1m while being lifted |
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Thursday, March 12, 2015, 10:51, Isaac Earle, Standard Operation, Target 2, Target, T2-MK2 Pos'n 4 Elevation Measurements
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Elevation measurements of the T2-MK2 target were taken in the hot cell to confirm previous records in preparation for the T2 Protect Monitor adjustment
that will take place later this shutdown. Potentiometer readings were also checked for ladder position 2mm above and below nominal in case we decide
to run the target in an offset position again. |
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Monday, April 20, 2015, 11:42, Isaac Earle, Standard Operation, Target 2, Target, T2-MK2 Target & T2 Protect Moved
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The T2-MK2 target was moved from the hot cell to the beam line. The T2 Protect Monitor was moved from the beam line to the hot cell. The
T2-MK2 assembly measured 136mSv/hr at 0.5m, and the protect monitor was 8mSv/hr. Total dose incurred by Isaac Earle: 0.18mSv. No dose
to other workers |
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Tuesday, April 21, 2015, 12:59, Isaac Earle, Standard Operation, Target 1, Target, T1-MK2 target moved from storage pit to beam line
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The T1-MK2 target was transported from the storage pit to the beamline. The target measured approximately 10mSv/hr at 0.5m. All target
services were hooked up and the cooling package was started (no change in T1 vacuum). |
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Tuesday, April 21, 2015, 13:38, Isaac Earle, Standard Operation, Target 1, Target, Air Amplifier Started. T1 & T2 Profile Monitor Actuation Checked
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The lower air amplifier has been started, and air supplied to the T1 and T2 areas by opening the appropriate ball valves beneath the amplifier.
The amplifier is cycling normally and the barrels are cool to the touch (indicating no significant air leaks).
Actuation of both profile monitors was checked from the control room. Both reach the in and out limits as expected, with no change in vacuum |
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Wednesday, April 22, 2015, 15:15, Isaac Earle, Standard Operation, Target 1, Cooling, T1 and T2 Cooling Packages Ready
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Both cooling packages are running steadily with the targets in Position 0.
The demin flow (Q2) for both was tuned to approximately 1.5USgpm.
A defeat was applied to T2Q1 flow to prevent high level nuisance trips. This will remain in effect for the 2015 running period. |
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Thursday, April 23, 2015, 16:29, Isaac Earle, Standard Operation, Target 1, Target, T1 & T2 Profile and Protect Monitors Electrical Check Completed
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An electrical check has been completed for the T1 & T2 Profile and Protect Monitors by Dave Cameron and Mike Russell. They report that all
results look normal. |
Friday, April 24, 2015, 11:53, Isaac Earle, Standard Operation, Target 2, Target, T2-MK2 Target Info Sheet & Elevations 
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T2-MK2 target information sheet, beam spot measurements, and elevations were updated and delivered to Operations. PDF copy attached.
No work was done to T1-MK2 (placed in storage pit for 2015 shutdown duration to lower fields), so the sheets will not be updated. |
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Friday, May 08, 2015, 09:48, Isaac Earle, Standard Operation, Other, Other, BL1A Blocks Restored
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Replacement of the BL1A blocks was completed yesterday (May 8, 2015) in preparation for first beam down 1A on May 12th. The attached PDF shows
a photograph of the current arrangement, and also the block arrangement at the beginning of the 2014 running period for comparison. |
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Tuesday, May 12, 2015, 21:20, Grant Minor, Standard Operation, Target 1, Target, T1 & T2 Targets moved from pos. 0 to pos. 4
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Grant moved the T1 and T2 targets from position 0 to position 4 this evening at around 9pm.
The position 4 selector button on the T1 rack was not working. The manual control box had to be used with the adapter cable and military
connectors for both T1 and T2 to achieve position 4 on both targets. |
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