 Tuesday, October 13, 2015, 10:52, Isaac Earle, Standard Operation, Target 1, Target, T1 & T2 Target Ladder Moves
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The T1 and T2 targets were both moved from Position 0 to Position 4 at approximately 2:30am on Saturday October 10th using the portable control
box. Operations had tried to move the T1 target to position 4 using the old control system but for unknown reasons it would move to any position
except position 4 and the portable control box had to be used. The portable control box should continue to be used for T1 and T2 target moves until |
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Wednesday, October 24, 2012, 17:38, Isaac Earle, Repair, Target 2, Target, T1 & T2 Target Ladder Control System Status
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During the recent shutdown for the T2/M9 joint repair Graham Waters replaced the corrupted application code on the controller RAM disk. The
T1 target position control is now functioning properly. T2 target position control is still not operational due to an electronics problem within
the motor driver. The T2 ladder position may still be moved using the portable control box. The T2 target ladder was moved to position 3 (10cm |
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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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Thursday, April 05, 2012, 15:22, Isaac Earle, Maintenance, Target 1, Target, T1 & T2 Profile and Protect "Blip" Test
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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. |
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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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Thursday, April 05, 2012, 12:14, Isaac Earle, Repair, Target 1, Target, T1 & T2 Profile Monitors
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Controls Group replaced the wiring and wire harness for the profile monitor limit switches on T2. The monitor was actuated remotely and functioned
properly.
The T1 profile monitor was also tested and actuated properly. The T1 monolith is now ready to be covered so that blocks may be removed from |
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Monday, January 18, 2016, 17:19, Isaac Earle, Standard Operation, Target 1, Cooling, T1 & T2 Packages Drained; BL1A Holding Tank Released
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The T1 and T2 cooling packages were drained to the BL1A holding tank on Jan 8 2016. The volumes were 100L and 80L respectively. Before
starting there was 350L of water in the holding tank from the 500MeV system which Steve Sapriken drained in September 2015. The T1 and T2 systems
were sampled and delivered to RPG. After receiving permission from RPG to release all 3 portions of water it was pumped into the city sewer on Jan |
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Monday, January 12, 2015, 16:35, Isaac Earle, Standard Operation, Target 1, Cooling, T1 & T2 MRO Status
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The following tasks have been performed at T1:
- T1 monolith painted using grey two part epoxy paint
- Video inspection taken while package running. Small leak from both valves on H.E. secondary side (video on Isaac's PC, too large to upload) |
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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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Thursday, February 09, 2012, 17:19, Isaac Earle, Repair, Target 1, Cooling, T1 & T2 General MRO
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The following work was performed on the T1 cooling package:
- New filter housing installed for Col. A filter. The new housing has a drain valve to prevent water spills during future filter changes.
- Ball valve installed upstream of Col. A filter to allow proper isolation of filter during filter changes. |
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Tuesday, July 17, 2012, 15:30, Isaac Earle, Development, Target 1, Cooling, T1 & T2 Expansion Tank Level Warnings Added
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Mike Mouat and Juan Pon have modified the control system so that the control room will receive a message when the warning or trip level sensors
for the T1 & T2 expansion tanks read "NOT OK". The message also displays the current water height in the tank. This will help
with earlier detection of water leaks from the cooling package or from the target ladder in the vacuum volume when the vacuum interlock has been defeated. |
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Friday, June 22, 2012, 13:48, Isaac Earle, Development, Target 1, Cooling, T1 & T2 Expansion Tank Level Sensor Recording Enabled
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Mike Mouat enabled recording for T1 and T2 expansion tank warning and trip level sensors on XTPAGE/XSTRIP.
XSTRIP output is in discreet integers as follows:
2 = Both sensors OK |
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Wednesday, July 15, 2015, 10:33, Isaac Earle, Standard Operation, Target 1, Cooling, T1 & T2 Cooling System Check
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- All T1 and T2 values on XTPAGE were stripped back to April 1, 2015: All systems appear to be functioning normally, nothing unusual observed
- Expansion tank levels checked visually: T1 level at 1/2" above top sensor nut, T2 level at 1/4" below top sensor nut --> filled
to 1/2" above |
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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. |
Thursday, March 31, 2016, 11:48, Isaac Earle, Standard Operation, Target 1, Target, T1 & T2 Beryllium Target Manufacturing Complete 
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Manufacturing of a new batch of T1 and T2 beryllium targets has been completed.
The job was completed under Machine Shop Work Order #41527. Eleven 12mm T1 targets (TBP1683) and seven 10cm T2 targets (TBP1691) were completed
(exhausting all stock of the leftover EDM'd target housings). The target window profiles (TBP1695) were laser cut at an outside shop for greater |
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Thursday, January 05, 2012, 10:18, Isaac Earle, Maintenance, Target 2, Cooling, Swapped Resin in T2 Cooling Package
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Drained T2 cooling package water, collected sample and delivered to RPG. Swapped resin can, refilled, and restarted cooling package.
After 6 hours can inlet at 10.3MΩ *cm,
can outlet at 10.5MΩ*cm electrical resistivity. |
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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, February 01, 2024, 11:16, Albert Kong, Standard Operation, Other, Cooling, Spent resin can rinse, purge, and drying
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The recently removed resin can from the T2 target station was rinsed with city water and flushed with compressed air for 1 cycle.
We will run it through a few more cycles before proceeding with drying under the fume extractor, at which point this ELOG will be updated.
UPDATE (Feb 08, 2024): The T2 resin can underwent 3 more air cycles. Today it was moved under the fume extractor with the lid cracked open and |
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Tuesday, August 28, 2018, 11:16, Isaac Earle, Standard Operation, Other, Other, South TNF Holding Tank water released
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The water in the South TNF Holding Tank was released today under work permit #C2018-08-28-3. The tank contained approximately 100L from the
T1 cooling package (drained Aug 16, 2018) and 350L from the 500MeV system (drained April 23, 2018 by Steve Sapriken). |
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Thursday, September 13, 2012, 18:09, Isaac Earle, Maintenance, Target 1, Cooling, September Shutdown T1 & T2 MRO
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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) |
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