 Friday, February 27, 2015, 18:06, Isaac Earle, Development, Target 1, Target, T1 Rotary Collimator Water and Air Line Investigation
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Ron Kuramoto, Keith Ng, John McKinnon, and myself spent some time today investigating water and air lines related to the T1 Rotary Collimator (Col.
A). We discovered the following:
- There is a panel on the back (south) side of the T1 cooling package with 3 air lines for Col. A actuation, Col A cooling water supply & return, |
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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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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, 15:17, 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, 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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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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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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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, 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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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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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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Friday, October 09, 2015, 15:18, Isaac Earle, Repair, Target 2, Target, T2-MK2 Check at Hot Cell and Motor Drive Cable Replacement 7x
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While the T2 monolith was uncovered for T2 Protect repair (see previous e-log), it was decided that the T2 target should be moved to the hot cell to
address issues discovered last week with target ladder movement (see e-log #175)
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Friday, October 09, 2015, 15:52, Isaac Earle, Repair, Target 1, Target, T1-MK2 Protect Monitor Replacement and Inspection 12x
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When the damage to the T2 Protect Monitor was found to be caused by flying debris from a vacuum spike (see e-log #179), it was decided that the T1 Protect
Monitor should also be replaced.
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