 Tuesday, March 25, 2014, 18:24, Isaac Earle, Development, Target 2, Water Leak, Water Detecting Sensor Install at T1 & T2 9x
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Water detecting strips were installed around the T1 and T2 areas today with Doug Preddy and contractors from SMT Research. Four sensors were installed
at various locations on each cooling package. Four sensors were installed on the top surface of the T2 monolith. In addition, four sensors
were routed for future installation at the T1 monolith (it is currently covered by blocks and requires cleaning and painting before sensor installation). |
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Monday, March 24, 2014, 18:14, Isaac Earle, Standard Operation, Target 2, Cooling, T2 Cooling Package & Air Amplifier Started
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Bill Rawnsley completed an electrical check of the T2 profile monitor today from the Meson Hall mezzanine - All OK.
The T2 cooling package was refilled and started. There was no change to the T2 vacuum when starting the package. While running, the
package was visually inspected for water leaks - no leaks found. |
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Tuesday, March 11, 2014, 13:50, Isaac Earle, Repair, Target 2, Target, T2 Protect Monitor Returned to Beam Line
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After the monitor assembly was moved to the hot cell, electrical checks were performed by Bill Rawnsley which showed the same results as when tested
in the beam line. A new monitor was installed (supplied by Probes Group), the tests were repeated, with all results appearing normal. The monitor
assembly was transported to the beam line this morning and installed at the T2 monolith. All cables were attached and the flange was bolted down. |
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Monday, March 03, 2014, 11:55, Isaac Earle, Repair, Target 2, Target, T2 Protect Monitor Moved to HC
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The T2 Protect Monitor was transported from the beam line to the hot cell this morning using the transport flask. The move went smoothly.
The only difficulty was locating the yellow flask alignment frame to the T2 monolith as the T2 protect holes on the yellow frame are tighter than
for other devices. It was necessary to remove four screws that secure the top flange of the T2 protect monitor assembly to the flange on the monolith. |
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Thursday, February 13, 2014, 14:27, Isaac Earle, Standard Operation, Target 2, Target, T2 Target Moves
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The T2-MK1 target was moved from the beam line to the target storage pit in position 4. The target was measured to be 30mSv/hr at 0.5m. The
move went smoothly.
The T2-MK2 target was then moved from the hot cell to the beam line. The target was 151mSv/hr at 0.5m. For reasons unknown the target |
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Thursday, February 06, 2014, 17:05, Isaac Earle, Standard Operation, Target 1, Cooling, T1 & T2 Cooling Package Filters Changed
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Water was drained from the T1 and T2 cooling packages, samples taken, and delivered to RPG.
All filters on the T1 and T2 cooling packages were changed except for the T1 demin. line filter which is hard to access and could not be properly
drained. This filter will be changed next shutdown when the area is more accessible while the resin cans are being changed. |
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Wednesday, January 22, 2014, 15:41, Isaac Earle, Standard Operation, Target 2, Water Leak, Water Drained From Suck Tube Released
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After approval from RPG, the water drained from the suck tube, which was stored in a bucket in the RH lab active sink area, was released to the
active drain. Even after rinsing, the bucket still had a slight field from the base, so it has been labelled and will be kept in the active sink
area. |
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Monday, January 20, 2014, 11:51, Isaac Earle, Repair, Target 2, Water Leak, Water Leak from Meson Hall Mezzanine Near T2
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A water leak developed this morning from a city water supply line at a hose connection near the T2 expansion tank. Water was observed to
be dripping off the mezzanine onto the plastic sheet covering the T2 cooling package. The leak has been stopped and the leaky fitting is being repaired
by Carston Frasden. |
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Friday, January 17, 2014, 15:41, Isaac Earle, Standard Operation, Target 1, Target, Water Purged from T1 & T2 Targets
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Water was purged from the T1 and T2 targets using compressed air. The water is stored in a labeled bucket on the BL1A blocks near the T2 cooling
package. The bucket is approximately 100µSv/hr on contact and 10µSv/hr at 0.5m. Isaac's coveralls had 500cpm on them after this job and were dropped off at active |
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Friday, January 17, 2014, 10:10, Isaac Earle, Standard Operation, Target 1, Cooling, T1/T2 Cooling Packages & Air Amplifier Shut Off
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In preparation for Edi to vent the BL1A vacuum volume, the T1 and T2 cooling packages were both shut off. They will remain off until vacuum
is restored in BL1A in a few weeks time. This afternoon, water will be purged from the T1 and T2 targets using compressed air so that stagnant water
is not sitting in the targets for an extended period of time. |
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Wednesday, January 15, 2014, 15:38, Isaac Earle, Standard Operation, Target 2, Water Leak, Suck Tube Drained and Rinsed
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The suck tube vessel was drained, rinsed, and transported to the active sink area in the Meson Hall Hot Cell Lab. There are no longer high fields
from the suck tube and it is ready for future use. The filter, tubing, and flange used for filtering the active water were removed and bagged and
are currently stored in the south-east corner of the warm cell. This bag measured up to 12mSv/hr on contact. There are small black particles |
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Thursday, January 09, 2014, 15:21, Isaac Earle, Repair, Target 2, Target, T2-MK2 Electrical Check
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An electrical check was performed on the T2-MK2 profile monitor by Bill Rawnsley. All signals produced the expected response, and Bill approved
the monitor for use. Bill has saved screenshots of the signal profile.
The target ladder position micro-switches and profile monitor in/out limit switches were also tested: all OK. |
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Monday, January 06, 2014, 15:55, Isaac Earle, Repair, Target 2, Target, T2-MK2 Repair
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The leaking 10cm Be target was removed from position 3 on the T2-MK2 target ladder and the water ports were blanked-off with 3/8" Swagelok
plugs. A 10cm Be target remains in position 4. The target was pumped down using the cold trap and a helium leak check was performed. All
target locations on the ladder were found to be leak tight. The delta seal locations and fittings above the vacuum flange were also leak tight, however |
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Tuesday, November 26, 2013, 10:33, Isaac Earle, Repair, Target 2, Target, T2-MK2 Water Flush
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The T2-MK2 target in the hot cell was flushed with water and then purged with air so that stagnant water is not left sitting in the target. Replacement
of the failed 10cm Be cassette will take place in January 2014. |
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Saturday, November 23, 2013, 18:37, Isaac Earle, Repair, Target 2, Target, T2-MK1 Installation
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- T2-MK1 target transported from the storage area by Isaac and Grant and installed at the T2 monolith. All services were connected. Storage
pit covered.
- Edi began pumping approximately 10am, and was not able to pump below ~20 Torr. Dimo came in to assist. |
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Friday, November 22, 2013, 20:26, Grant Minor, Repair, Target 2, Water Leak, T2 Water Leak - Target Assembly Removed and Water Sucked Out of B/L
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T2 target water leak was identified earlier this morning.
Isaac Earle, Ron Kuramoto and Keith Ng co-ordinated Meson Hall blocks removal and target flask transport.
Target assembly was removed from B/L approximately 5pm. |
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Tuesday, November 12, 2013, 11:49, Isaac Earle, Repair, Target 1, Target, MH Hot Cell Lab Manipulator Overhaul
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Complete overhaul of all manipulators in the Remote Handling Hot Cell Lab in the Meson Hall was performed by Peter Dudley from Central Research
Laboratories between October 28 - November 8th. Overhaul included replacing all tapes and cables, disassembling, cleaning, lubricating, and rebuilding
the master and slave wrist assemblies, adjusting motion locks, and other repairs/maintenance as required. All 6 manipulator arms in the lab are now |
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Wednesday, October 23, 2013, 15:30, Isaac Earle, Development, Target 1, Cooling, T1 & T2 High Temp Safety Switch Tested
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An end-to-end test was performed on the new T1 and T2 high temperature safety switches yesterday during the maintenance day. The switch set
points were lowered below the current temperature and it was confirmed that all warning messages and XTPAGE status changes occurred as expected. |
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Wednesday, September 25, 2013, 14:05, Isaac Earle, Standard Operation, Target 1, Active Sump, RH Lab Active Sump Level Sensor Inspected
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A notification was received that the RH lab active sump level sensor is due for annual inspection. The sensor was tested and is working properly.
The water level was observed to be only a few inches below the sensor level. Ken Buckley was notified and someone from his group will sample
and drain the tank according to the procedure in Document-64834 |
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Wednesday, September 11, 2013, 16:13, Isaac Earle, Repair, Target 2, Cooling, T2 Cooling Package Water Leak Repair
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The T2 cooling package was uncovered this morning and a leak was found coming from the Swagelok ball valve on the 3/4" target water outlet
line. The water was coming from the stem of the valve, indicating that water was leaking through the valve packing, rather than at the fittings for
the valve. The leak rate was approximately 1 drop every 5 seconds and a small puddle was visible on the top of the water reservoir. The water |
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