 Tuesday, June 04, 2013, 13:42, Isaac Earle, Repair, Target 1, Target, T1 and T2 Power Supply Fans Replaced
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Replacement of the power supply fans for the T1 Power Supply, T2 Power Supply, as well as an additional power supply in rack 1A was completed this
morning. The boxes were blown out with air to remove dirt and dust. The inside of all boxes were inspected and no evidence of melting or burning
was found. |
Friday, May 31, 2013, 16:07, Isaac Earle, Repair, Target 1, Target, Power Supply Fan Failure 
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Today (May 31, 2013) I was contacted regarding a burning smell and high temperatures around the T1/T2 controls racks. Erwin Klassen, Bill
Rawnsley, Graham Waters and myself investigated and found that the cooling fans for two power supplies on the T1/T2 control racks had failed and both units
were warm to the touch. The power supplies are labeled "T1 Power Supply" and "T2 Power Supply" in racks 1-F and 1-A respectively. |
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Tuesday, May 14, 2013, 13:26, Isaac Earle, Development, Target 1, Target, T1 & T2 Profile Scan
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The T1 and T2 profile monitors were used during today's development shift. Target ladder movement for T1 was done at the panel on the mezzanine,
for T2 the portable control box was used. Both monitors actuated properly and the scans did not show any "missing" wires. The profiles
at both targets were found to be too broad and were adjusted to span 2 wires horizontally and 6-7 wires vertically (Yi-Nong Rao). |
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Friday, April 19, 2013, 09:55, Isaac Earle, Development, Target 1, Cooling, T1&T2 cooling package safety/standards compliance upgrade complete (SASP0120)
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Yesterday (April 18th) the T1 and T2 cooling package PRV outlet lines were routed to the active drain in the 1A tunnel. All items for the safety
and standards compliance upgrade for T1 and T2 as specified in Document-68861 are
now complete. |
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Wednesday, April 17, 2013, 16:45, Isaac Earle, Standard Operation, Target 1, Target, T1-MK1 Target Leak Checked
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| The T1-MK1 target was leak checked on April 15th at the T1 monolith by Ron Kuramoto and Edi Dalla Valle. No leaks were found. |
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Wednesday, April 17, 2013, 16:43, Isaac Earle, Standard Operation, Target 2, Target, T2 target installed; Vacuum leak-tight; Monitors OK; T2 ready for beam
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The T2-MK2 target was transferred from the storage pit to the beam line yesterday (April 16th). The field was measured to be approximately 165mSv/hr
at 0.5m from the target ladder (after approximately 5 months of cool down time). Vacuum was started this morning and has pumped down normally (1ACG4
at 11mTorr after ~5 hours) indicating that the target is leak tight. |
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Friday, April 12, 2013, 17:33, Isaac Earle, Development, Target 1, Cooling, T1 & T2 high-temp limit switch installation, wiring, and commissioning complete
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Installation, wiring, and commissioning of the high temperature limit switches for the T1 and T2 cooling packages was completed today as part of SAS
project SASP0120. The relay output from the switches was wired in series with the Central Safety System signals for T1 and T2 (cable number 13250
and 12250 respectively) in break-out panel #2 on the Meson Hall south mezzanine. There were already 3 other circuits wired in series with each signal |
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Friday, April 12, 2013, 13:28, Isaac Earle, Standard Operation, Target 1, Cooling, Cooling Packages Leak Tight
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The T1 and T2 expansion tanks were filled on Monday April 8th. There was no change in the level when inspected today (April 12th). Visual
inspection of the packages also found no leaks. |
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Tuesday, April 09, 2013, 17:06, Isaac Earle, Repair, Target 1, Target, T1 Target Electronics Check
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The T1-MK1 target protect and profile monitor electronics were 'blip' tested by Bill Rawnsley on April 5, 2013. The response from the profile monitor
appeared normal, however the protect monitor response was very weak. After various debugging it was found that the 9 pin connector on the target
on the vacuum side of the vacuum flange had become disconnected from the vacuum flange feed-through. It is suspected that this happened while changing |
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Tuesday, March 26, 2013, 10:55, Isaac Earle, Maintenance, Target 1, Target, T1-MK1 Re-wiring and MRO Complete
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The following work was performed on the T1-MK1 target:
- Unused proximity sensor removed
- Lift flange removed, painted, relabeled |
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Monday, March 18, 2013, 15:17, Isaac Earle, Maintenance, Target 2, Target, T2-MK2 Target Maintenance and Re-Wiring
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- T2-MK2 target moved from beamline to hot cell (Feb 4th)
- Steel target support shield installed as well as ~3 layers of lead blankets. Even with this extra shielding fields in the working area were
as high as 800µSv/hr. |
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Wednesday, March 06, 2013, 12:13, Isaac Earle, Maintenance, Target 2, Cooling, T2 Heat Exchanger MRO 7x
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- The new tube array was picked up from Kaltech on Feb 8th (observed vessel holding 60psi on hydro test at their shop)
- Vacuum leak checked at TRIUMF: would not pump down
- Applied 20psi air, and found leaks on both tube sheets using Snoop |
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Tuesday, February 05, 2013, 09:50, Isaac Earle, Maintenance, Target 2, Target, T2-MK2 target moved from beam line to hot cell
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The T2-MK2 target was transported from the beam line to the RH hot cell. The profile monitor was secured in the 'in' position before lifting the
target, as it is better protected in this configuration. This procedure will be used for all future target moves to reduce the risk of damage to
the monitor. |
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Tuesday, January 29, 2013, 15:55, Isaac Earle, Maintenance, Target 2, Cooling, T2 H.E. Transported to Warm Cell
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Friday Jan 25:
- Both sides of heat exchanger drained, disconnected, and capped
- Heat exchanger transported to warm cell (field from H.E. approximately 15 |
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Monday, January 21, 2013, 16:18, Isaac Earle, Standard Operation, Target 2, Target, T2 Cooling Package Water Released
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The T2 cooling package water was drained to the BL1A active sump, refilled, cycled, and drained again. Samples of T2 cooling package active water
was given to RPG, tested, and approved for release.
On January 21 at approximately 4pm the full volume of the sump (280L) was released to the city sewer. |
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Monday, January 21, 2013, 11:57, Isaac Earle, Repair, Target 2, Target, Flask Repair
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On January 15th, when attempting to move the T2 target from the beam line to the hot cell, the latch mechanism on the flask did not actuate and
the target could not be lifted from the beam line.
On January 16th the flask was placed on blocks (IMG_0818) (while remaining attached to the crane) in the RH hot cell lab for inspection. The |
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Monday, January 14, 2013, 16:55, Isaac Earle, Standard Operation, Target 2, Target, Target Move & Damaged Profile Monitor
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The T2-MK1 target (spare T2 target) was transported from the hot cell to the storage pit today.
While the flask was being aligned to the storage pit locating pins, the base of the flask bumped the top of one of the alignment pins. This
was caused by a slight misalignment between the flask locating hole and the alignment pin at the moment when the flask was lowered. This caused the |
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Friday, January 11, 2013, 15:48, Isaac Earle, Standard Operation, Target 1, Target, BL1A Tunnel Accessed
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The BL1A tunnel was accessed to drain and sample T2 cooling package water. A puddle of water was noticed in the South TNF area around the
drain by the boot-box. No water was found in the BL1A tunnel. Photos attached. |
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Tuesday, January 08, 2013, 10:52, Isaac Earle, Maintenance, Target 2, Target, T2-MK1 Target Maintenance
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- T2-MK1 target transported from storage pit to hot cell
- Proximity sensor removed
- Target lift "T" removed, painted, relabeled |
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Tuesday, January 08, 2013, 09:27, Isaac Earle, Standard Operation, Target 2, Target, BL1A Air Amplifier turned off for duration of shutdown.
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The BL1A air amplifier has been shut down by closing the air supply valve on the device. The
air amplifier supplies high pressure air (110psi) to the following devices: M9BB, M20BB, T1 Profile Monitor, T2 Profile Monitor, T2 Collimator, Septum
Polarity Switch |
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