 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 
|
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 |
|
Tuesday, April 28, 2015, 15:55, Isaac Earle, Development, Target 1, Target, Target Version Jumper Wires Installed for T1-MK1 and T2-MK1
|
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 |
|
Friday, April 24, 2015, 11:53, Isaac Earle, Standard Operation, Target 2, Target, T2-MK2 Target Info Sheet & Elevations
|
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. |
|
Thursday, April 23, 2015, 16:29, Isaac Earle, Standard Operation, Target 1, Target, T1 & T2 Profile and Protect Monitors Electrical Check Completed
|
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. |
|
Thursday, April 23, 2015, 13:40, Isaac Earle, Development, Target 2, Other, T2 Protect Monitor Elevation Adjustment
|
- 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 |
|
Wednesday, April 22, 2015, 15:17, Isaac Earle, Development, Target 1, Target, T1-MK2 wired for version identification
|
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. |
|
Wednesday, April 22, 2015, 15:15, Isaac Earle, Standard Operation, Target 1, Cooling, T1 and T2 Cooling Packages Ready
|
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. |
|
Wednesday, April 22, 2015, 09:46, Isaac Earle, Development, Target 1, Target, Water Sensors Installed on T1 Monolith
|
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. |
|
Tuesday, April 21, 2015, 13:38, Isaac Earle, Standard Operation, Target 1, Target, Air Amplifier Started. T1 & T2 Profile Monitor Actuation Checked
|
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 |
|
Tuesday, April 21, 2015, 12:59, Isaac Earle, Standard Operation, Target 1, Target, T1-MK2 target moved from storage pit to beam line
|
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). |
|
Monday, April 20, 2015, 11:42, Isaac Earle, Standard Operation, Target 2, Target, T2-MK2 Target & T2 Protect Moved
|
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 |
|
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
|
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. |
|
Tuesday, March 31, 2015, 17:40, Isaac Earle, Repair, Target 2, Cooling, T2 Thermistors Replaced
|
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 |
|
Thursday, March 12, 2015, 10:51, Isaac Earle, Standard Operation, Target 2, Target, T2-MK2 Pos'n 4 Elevation Measurements
|
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. |
|
Wednesday, March 04, 2015, 18:08, Isaac Earle, Repair, Target 2, Cooling, T2 Cooling Package MRO Update
|
The following work was done today at the T2 cooling package:
- Remainder of #4 Hansen o-rings replaced (see E-log from Jan 30, 2015)
- Installed the following ball valves which have been rebuilt & tested with 100psi air: target outlet 3/4" (x2), resin can outlet filter |
|
Friday, February 27, 2015, 18:06, Isaac Earle, Development, Target 1, Target, T1 Rotary Collimator Water and Air Line Investigation
|
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, |
|
Friday, February 20, 2015, 13:55, Isaac Earle, Standard Operation, Target 2, Target, T1 & T2 Target Moves
|
- 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 |
|
Wednesday, February 18, 2015, 14:49, Isaac Earle, Repair, Target 1, Target, T1-MK1 Repair Complete
|
This is a continuation of work detailed in E-Log #129 and #140.
- Static water test performed on the target cooling lines:
- Test setup assembled and leak checked by pressurising with house air, submerging in water and checking for bubbles (see photos) |
|
Friday, February 06, 2015, 12:39, Isaac Earle, Repair, Target 1, Target, T1-MK1 Repair Status (Pos'n 1 Plug Leak)
|
The T1-MK1 target is currently in the hot cell for repair of a leak at position 1. See E-Log #129 for details on previous work.
- Pos'n 1 right nut removed (a little stiff, but no excessive force required)
- Exterior threads cleaned w/ Scotchbrite disc on Dremel tool |
|
Monday, February 02, 2015, 16:06, Isaac Earle, Maintenance, Target 2, Cooling, T2 MRO Status
|
- T2-MK2 target (currently in the T2 monolith) purged with air
- All cooling package reservoir o-rings changed |
|