 Thursday, January 05, 2012, 10:21, Isaac Earle, Maintenance, Target 1, Cooling, Defeated T1 and T2 cooling package vacuum interlocks.
|
Defeated T1 and T2 cooling package vacuum interlocks at 1-C panel on South mezzanine in Meson Hall to allow cooling packages to continue running
after beamlines are vented.
Notified operations. |
|
Friday, January 06, 2012, 15:37, Isaac Earle, Maintenance, Target 2, Target, Transferred M20 beam blocker to hot cell
|
Uncovered T2 monolith and transferred M20BB to hot cell using flask.
Field at 0.5m from beam blocker while being lifted with flask: 21,700 |
|
Thursday, January 12, 2012, 11:34, Isaac Earle, Maintenance, Target 2, Target, Replaced M20 Beam Blocker Vacuum Seal O-Rings
|
Replaced M20 beam blocker vacuum seal o-rings. Old o-rings were noticeably harder, but not brittle or cracked. Applied "Haskel
Dry Air Seal" lubricant to air cylinder shafts and "Apiezon M Grease" to vacuum seal o-rings and main shaft. Took approximately 1
full days work. Total dose: 0.08mSv. |
|
Wednesday, January 25, 2012, 13:26, Isaac Earle, Maintenance, Target 2, Target, M9BB Returned to Beam Line
|
M9 beam blocker returned to beam line.
T2 target disconnected, picked up using flask, and returned to beam line as training exercise.
Field @ 50cm from T2 target during removal: ~90,000μSv/hr |
|
Monday, January 30, 2012, 16:44, Isaac Earle, Maintenance, Target 1, Cooling, Completed T1 Cooling Package MRO
|
Replaced all o-rings and filters on the T1 cooling package. Replaced resin can. Refilled package
and restarted.
Can inlet resistivity at 9.8M |
|
Tuesday, April 03, 2012, 15:55, Isaac Earle, Maintenance, Target 1, Target, T1 Ladder Position Look-up Tables Updated
|
| Graham Waters has activated the appropriate target ladder position look-up tables for the T1-MK1 target which was installed in the beam line yesterday. |
|
Thursday, April 05, 2012, 15:22, Isaac Earle, Maintenance, Target 1, Target, T1 & T2 Profile and Protect "Blip" Test
|
Diagnostics group completed their "blip" signal response tests on the T1 and T2 profile and protect monitors. A small amount of
leakage was observed on the T2 profile monitor, but was not thought to be a significant concern. All other results were normal. |
|
Thursday, April 12, 2012, 15:19, Isaac Earle, Maintenance, Target 2, Target, T2 Target Water Drained
|
In preparation for extended periods of the T2 volume being vented during the M20 repair, the T2 water package was shut-off, the water lines were
disconnected from the target, and the cooling water was removed from the target using compressed air. |
|
Wednesday, June 06, 2012, 08:58, Isaac Earle, Maintenance, Target 2, Target, T2 Monolith Leak Check
|
While leak checking components in the M20 front end on May 25th, the top of the T2 monolith was also checked by flooding the top of the monolith
with helium while it was covered with plastic sheeting. There was no response on the Varian leak detector indicating no significant leaks from the
flange seals, shaft seals, and seals for upper services on the T2 target, T2 protect monitor, M9BB, M20BB, and M8BB/Col.A |
|
Friday, June 22, 2012, 13:54, Isaac Earle, Maintenance, Target 2, Target, Air Amplifier Rebuild Complete
|
A full rebuild of the upper air amplifier was completed. New anodized aluminum barrels were installed (replacing the old brass design), as well
as new pilot valves, piston seals, bearings, and o-rings.
The amplifier is operating smoothly with a cycle period of 25.6 seconds, compared to 14.8s before rebuild (based on 8 cycle measurents at 110psi |
Tuesday, June 26, 2012, 09:05, Isaac Earle, Maintenance, Target 1, Cooling, T1 & T2 Target Water Flow Transducers Serviced 
|
The target water outlet flow transducers on the T1 and T2 cooling packages were serviced (new shaft, paddle wheel, & o-ring) to address a noisy
signal. The service corrected the noisy signal. Additionally, it appears the worn parts were causing the transducers to read high, as both
dropped approximately 1 gallon/minute after the service. Both transducers would occasionally trip the high flow warning (8.5gpm), and should now |
|
Thursday, September 13, 2012, 18:09, Isaac Earle, Maintenance, Target 1, Cooling, September Shutdown T1 & T2 MRO
|
The following tasks were performed during the 2012 September Shutdown:
- Both targets moved to position 0 in preparation for testing of profile monitors (portable ladder control box was used for controlling ladder
motors) |
|
Monday, December 10, 2012, 15:42, Isaac Earle, Maintenance, Target 1, Target, T1-MK2 Target Maintenance
|
- T1-MK2 target moved from storage pit to hot cell
- Removed unused proximity sensor and associated wiring (stored in tool-port boot box cabinet)
- Tested profile monitor actuation: seems stiff, but moves ok; start travel @ 30psi, fully in position @ 50psi |
|
Tuesday, January 08, 2013, 10:52, Isaac Earle, Maintenance, Target 2, Target, T2-MK1 Target Maintenance
|
- T2-MK1 target transported from storage pit to hot cell
- Proximity sensor removed
- Target lift "T" removed, painted, relabeled |
|
Tuesday, January 29, 2013, 15:55, Isaac Earle, Maintenance, Target 2, Cooling, T2 H.E. Transported to Warm Cell
|
Friday Jan 25:
- Both sides of heat exchanger drained, disconnected, and capped
- Heat exchanger transported to warm cell (field from H.E. approximately 15 |
|
Tuesday, February 05, 2013, 09:50, Isaac Earle, Maintenance, Target 2, Target, T2-MK2 target moved from beam line to hot cell
|
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. |
|
Wednesday, March 06, 2013, 12:13, Isaac Earle, Maintenance, Target 2, Cooling, T2 Heat Exchanger MRO 7x
|
- 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 |
|
Monday, March 18, 2013, 15:17, Isaac Earle, Maintenance, Target 2, Target, T2-MK2 Target Maintenance and Re-Wiring
|
- 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. |
|
Tuesday, March 26, 2013, 10:55, Isaac Earle, Maintenance, Target 1, Target, T1-MK1 Re-wiring and MRO Complete
|
The following work was performed on the T1-MK1 target:
- Unused proximity sensor removed
- Lift flange removed, painted, relabeled |
|
Friday, March 28, 2014, 13:59, Isaac Earle, Maintenance, Target 2, Cooling, T2 P1 Transducer and T2 Q1 Flow Meter Replaced
|
The T2 P1 pressure transducer (Omega PX315-100GI) and T2 Q1 Proteus flow meter (0150SSTF3) have been replaced with new units to address issues with noisy
signals. |
|