 Tuesday, March 31, 2015, 17:40, Isaac Earle, Repair, Target 2, Cooling, T2 Thermistors Replaced
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The Inlet (T1), Outlet (T2), Col.A (T6), and Col. B (T7) thermistors at the T2 cooling package all gave intermittent faulty readings at various times
between Oct - Dec 2014. It is suspected that this was caused by a water leak in the area causing the terminals to get wet. Inspection of the
sensors revealed that they are in poor shape and that the readouts sometimes fluctuate when the probe or connectors are handled. All four thermistor |
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Thursday, April 09, 2015, 13:56, Isaac Earle, Development, Target 2, Target, T2-MK2 target wired for version identification, cable ties replaced, ready for use
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The "POT/CAM" MS connector on the T2-MK2 has been wired to allow automatic target version number identification by the new T1/T2 control system.
Pin A was jumpered to Pin C. (MK1 targets will use Pin A to Pin B jumper).
The nylon cable ties on the target assembly were found to be very brittle and fragile, they have been replaced with PEEK cable ties. |
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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 |
Wednesday, April 22, 2015, 09:46, Isaac Earle, Development, Target 1, Target, Water Sensors Installed on T1 Monolith 
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Four water sensors have been installed on top of the T1 monolith. These water sensors were wired and brought to the area during the 2014
shutdown, but installation was delayed so that the top of the monolith could be painted first. The sensor labels (attached to the sensor cable) are:
T1, T2, T6, and T8. The location of each sensor is documented on the diagram below. Two photos of the top of the monolith are also attached. |
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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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Wednesday, April 22, 2015, 15:17, Isaac Earle, Development, Target 1, Target, T1-MK2 wired for version identification
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The T1-MK2 target was wired for automatic target version detection by the new PLC control system (A to C jumper in POT/CAM MS connector).
T1-MK1 and T2-MK1 targets still need to be wired which can take place after the shutdown without moving them from the storage pit. |
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Thursday, April 23, 2015, 13:40, Isaac Earle, Development, Target 2, Other, T2 Protect Monitor Elevation Adjustment
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- T2 Protect Monitor moved from the beam line to the hot cell on Monday April 20th
- Elevation of the plate center measured at 1839.0mm from the base of the vacuum flange
- Old monitor cassette photographed (attached). Heat mark noticed on exit side approximately 10mm above and 5mm south of plate centers (cause |
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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. |
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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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Tuesday, April 28, 2015, 15:55, Isaac Earle, Development, Target 1, Target, Target Version Jumper Wires Installed for T1-MK1 and T2-MK1
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The T1-MK1 and T2-MK1 targets have been re-wired to allow version identification. Work was performed in the target storage pit. Approximate
field around the targets in the pit was 100microSv/hr. Disposable coveralls were worn for the job and had 800cpm of contamination on completion.
All nylon cable ties on the targets were replaced with PEEK cable ties. Total dose received was 0.06mSv by Isaac Earle. This modification |
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Friday, May 01, 2015, 16:01, Isaac Earle, Repair, Target 1, Other, RH Warm Cell Used by Beamlines Group for TNF Heat Exchanger Leak Check
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The Meson Hall RH Lab Warm Cell was used by Beamlines Group for hydrostatic testing of the TNF heat exchanger. The location was chosen because
of access to a water supply, active drain, and the heat exchanger has removable contamination. The work took place on April 30th and May 1, 2015.
New plastic sheet was placed over the 6 foot block in the center of the warm cell which was used as a work area. The plastic was removed after |
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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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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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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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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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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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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, 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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