 Tuesday, October 06, 2015, 14:04, Isaac Earle, Other, Other, Controls, Instructions for loading display screen for T1/T2
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The following instructions were provided by Graham Waters:
From diag5pc bootup |
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Monday, October 05, 2015, 15:25, Isaac Earle, Standard Operation, Other, Other, Old T2 Protect Monitor Cassette Update
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The T2 protect monitor cassette removed in April 2015 (see E-log #154) was surveyed today. It was approximately 3mSv/hr at 0.5m and 15mSv/hr
on contact. It is unlikely that this monitor will ever be cool enough for hands-on elevation adjustment that it requires, therefore it has been bagged,
labeled, and transferred to the east hot cell for storage. |
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Friday, October 02, 2015, 17:25, Ron Kuramoto, Standard Operation, Target 1, Target, Raise Target to lower Rad levels for 1AM7 repair
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Today the T1MK2 target was moved from Position 4 to Position 0 to lower the Rad fields for the 1AM7 repair in the 1A Tunnel. The Rad levels were still
to high only dropping by 1000uSv/Hr to 5000uSv/Hr, so the 1AM7 repair is planned for next Tuesday's maintenance day on Oct 6th. 1A will be off till
then giving a longer cool down. |
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Thursday, October 01, 2015, 11:43, Isaac Earle, Repair, Target 2, Target, T2-MK2 Target Ladder Drive Motor Failure
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The stepper motor that drives the target ladder on T2-MK2 has failed. This is the cause of the difficulty moving the target ladder yesterday
afternoon (see previous e-log). This was confirmed this morning by attempting to move the T1-MK1 target ladder in the storage pit using the portable
control box - the ladder moved with no issues. |
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Wednesday, September 30, 2015, 17:07, Isaac Earle, Standard Operation, Target 2, Target, Target Moves for Profile Check - Possible Motor or Control Box Failure
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The T1 and T2 targets were moved to position zero, then back to the target position today so that beam profile could be checked using the profile monitors.
Movement for both targets was done with the portable control box.
The T1 target was moved from Position 4 to Position 0, then back to Position 4 (after checking the profile) with no issues. |
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Monday, September 28, 2015, 11:33, Isaac Earle, Repair, Other, Water Leak, Warm Cell Water Window Repair Complete
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The warm cell water window tanks were filled on September 17 after 2 weeks of curing time. A water leak was found coming from the seals of a plastic
pipe joining the two tanks near the top. This was repaired using rubber gaskets and quick cure caulking. The tank was refilled on September
18 and no longer leaked from that location. The sand filter was backflushed with the water exhausted to the grass area outside the hot cell lab until |
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Monday, September 28, 2015, 10:29, Isaac Earle, Standard Operation, Other, Active Sump, RH Hot Cell Lab Active Sump High Level Sensor Tested
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The RH hot cell lab active sump high level sensor was tested as part of the yearly scheduled inspection. High water level was simulated by
tilting the sensor sideways with a long pole sample scoop. The Main Control Room and Hua Yang from Nuclear Medicine were notified before the test.
The alarm sounded as expected, and a message was received in the main control room. This is a latching signal, so a Control Room operator will |
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Thursday, August 27, 2015, 15:47, Isaac Earle, Repair, Other, Water Leak, Warm Cell Water Window Seal Replacement Update
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Since the previous E-Log the following tasks have been completed:
- Panel spacer rods installed at 4 locations in each tank (two top, two bottom at approximately 1/3 and 2/3 the way across)
- Spacer rods expanded only slightly to begin compressing the rubber window spacers while still leaving at least a 8mm gap between window and frame |
Wednesday, August 19, 2015, 12:10, Isaac Earle, Repair, Other, Other, Warm Cell Water Window Seal Replacement Status 6x
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The following tasks were completed over the past 2 weeks:
- Aquarium Technology Ltd. (UK) was contacted regarding best method for replacing window seal. A detailed procedure was provided (attached
below) |
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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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Friday, July 17, 2015, 10:14, Isaac Earle, Development, Target 1, Target, T1/T2 Be Target Failure History & Replacement Plan
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T1 and T2 beryllium target failure history was investigated back to 2000 (as far as XSTRIP records were readily available). For each target cassette
the following were noted: length of time the target was subject to direct beam, length of time the target was on the ladder w/o direct beam, and method
of failure. The purpose of the study was to devise a target replacement strategy so that T1 and T2 beryllium targets are preemptively retired from |
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Wednesday, July 15, 2015, 10:33, Isaac Earle, Standard Operation, Target 1, Cooling, T1 & T2 Cooling System Check
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- All T1 and T2 values on XTPAGE were stripped back to April 1, 2015: All systems appear to be functioning normally, nothing unusual observed
- Expansion tank levels checked visually: T1 level at 1/2" above top sensor nut, T2 level at 1/4" below top sensor nut --> filled
to 1/2" above |
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Thursday, July 09, 2015, 13:51, Isaac Earle, Development, Other, Target, New T1 and T2 Beryllium Targets Ordered
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An order for new T1 and T2 beryllium targets was submitted to the TRIUMF machine shop today. A total of seven T2 targets and twleve T1 targets
were ordered to match existing stock of wire EDM target shells. All required materials were supplied. Completion by October 30, 2015 was requested.
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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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Tuesday, June 23, 2015, 10:24, Isaac Earle, Standard Operation, Other, Other, BL1A Holding Tank Water Released
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The water in the BL1A holding tank was released to the city sewer. This water was sampled, tested, and approved for release by RPG two weeks
ago. The total volume was 510L, a combination of water from the T2 and TNF systems. The total time required to pump out the water with all
valves fully open was 1hr2m. Paperwork for the water release was completed and returned to RPG. |
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Friday, June 19, 2015, 17:11, Isaac Earle, Development, Other, Controls, PLC Test of Ultrasonic Level Sensor
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The new T1/T2 level sensors (Omega LVCN414) were hooked up to the PLC and the test performed
on June 11 was repeated.
The water level above the base of the bucket was measured using a tape measure, as well |
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Thursday, June 11, 2015, 16:59, Isaac Earle, Development, Other, Controls, Lab Test of New T1/T2 Level Sensors
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The new T1/T2 level sensors (Omega LVCN414) were tested in the RH HC lab today using the Omega software on a laptop and positioning the level sensor
flange above a bucket of water with similar height as the expansion tank.
The level sensors behaved as expected with varying water level. |
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Monday, May 25, 2015, 12:48, Isaac Earle, Repair, Target 1, Controls, T1/T2 Controls System Crash
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At 9:15am this morning BL1A tripped off due to loss of the watchdog signals for the T1/T2 control system. Graham Waters investigated and the
problem was found to be a corrupted initialization file. The error was corrected, and BL1A was started by 11:30am.
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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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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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