 Wednesday, May 14, 2014, 20:36, Grant Minor, Development, Target 2, Target, Target exercised to position 0, then back to 2.0 mm above position 4
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The T2 target was exercised to position 0 around 6:15pm so that the T2 profile monitor could be used by operations. The T2 water package was re-enabled
when the target was in position 0, however this resulted in some trips of the cooling package.
Operations called around 7:45 to request return of the target to about 2mm above position 4. |
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Tuesday, April 28, 2015, 15:55, Isaac Earle, Development, Target 1, Target, Target Version Jumper Wires Installed for T1-MK1 and T2-MK1
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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 |
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Monday, April 11, 2016, 13:51, Isaac Earle, Development, Other, Other, Target Transfer Flask Hoist Hook Lower Limit Adjusted
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The lower limit of the flask hoist hook has been adjusted. The travelling nut for the lower limit was rotated 3 notches closer to the upper
limit travelling nut which resulted in an additional 1-3/8" travel of the hook at the lower limit. The door hinges and door cable pulleys were
lubricated with WD-40 and actuation of the doors was tested several times. |
Friday, September 23, 2022, 10:51, Matthew Gareau, Standard Operation, Target 2, Target, Target T2-MK2 moved to storage pit 
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The T2-MK2 target was transported from the east hot cell to the storage pit at position 3.
As was noted in the past, position 3 is difficult to align. The flask alignment pins prevent the flask from positioning in the correct location,
and it is required to have the flask just above the pins to ensure that the pins did not restrict the flask movement. |
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Wednesday, September 30, 2015, 17:07, Isaac Earle, Standard Operation, Target 2, Target, Target Moves for Profile Check - Possible Motor or Control Box Failure
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The T1 and T2 targets were moved to position zero, then back to the target position today so that beam profile could be checked using the profile monitors.
Movement for both targets was done with the portable control box.
The T1 target was moved from Position 4 to Position 0, then back to Position 4 (after checking the profile) with no issues. |
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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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Monday, July 23, 2012, 16:01, Isaac Earle, Development, Target 1, Target, Target Flask Seismic Restraint Clamps Installed
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Installation of the seismic restraint clamps has been completed for the MK1 and MK2 target flasks in the Remote Handling lab (photos attached).
Two clamps on the MK1 flask required 3/8" shims due to warpage of the flask baseplate (see photo IMG_0429).
Dragan Mitrovic has been notified so that he can inspect the installation and close the work request. |
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Wednesday, February 24, 2016, 13:03, Isaac Earle, Repair, Other, Other, Target Flask 2-Ton Hoist Chain Twist Corrected
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A 1/2 turn twist in the target flask hoist chain has been corrected to address a deficiency observed by inspectors by Gordon Crane. This
was accomplished by first holding the flask door yoke at the top position using rope slings, then lowering the hook block spider approximately 6",
then lifting the stationary end of the hoist chain approximately 2" using the Meson Hall main crane to make the top of the chain slack. |
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Thursday, March 24, 2016, 14:46, Isaac Earle, Other, Other, Other, TNF / 500MeV Resin Cans Removed from Storage Pit #1
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Three used TNF / 500MeV system cooling system resin cans were removed from the Meson Hall target storage pit (two from Hole #1, one which was stored
below block #1).
Two new active cans will be returned to Hole #1 after the TNF resin is changed in a few weeks time. |
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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
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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. |
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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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Thursday, September 15, 2022, 14:34, Adam Newsome, Standard Operation, Target 2, Target, T2-MK2 target elevations measurement
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The target elevations measurement and beam spot checks were completed on Sept. 15, 2022. This was done after a July 2022 target exchange for target positions
3 and 5.
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Tuesday, April 11, 2017, 17:31, Isaac Earle, Development, Target 2, Target, T2-MK2 target MRO and alignment of T2 devices
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The following work was performed on the T2-MK2 target assembly and the T2 Protect assembly for maintenance purposes and to implement the alignment
strategy detailed in E-Log #218:
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Friday, April 06, 2018, 15:05, Isaac Earle, Standard Operation, Target 2, Target, T2-MK2 target MRO
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The following is a summary of MRO work done on the T2-MK2 target during the 2018 shutdown:
Jan 8: |
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Tuesday, October 10, 2017, 12:09, Isaac Earle, Standard Operation, Target 2, Target, T2-MK2 position 4 target changed
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The following work was performed on the T2-MK2 target assembly during the 2017 fall shutdown:
Oct 4, 2017: |
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Wednesday, April 13, 2022, 12:31, Adam Newsome, Standard Operation, Target 2, Target, T2-MK2 moved: from target station to storage
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The T2-MK2 target was moved from the target station to the storage area (position 3). Upon removal, it was measured with a pole monitor at 0.5 m to be
960 mSv/h. |
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Wednesday, May 25, 2022, 10:16, Adam Newsome, Standard Operation, Target 2, Target, T2-MK2 moved: from storage location to hot cell
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| Target T2-MK2 was moved from the storage location (formerly position 3) to the hot cell in preparation for replacement of end of life targets. |
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Wednesday, January 10, 2018, 17:45, Isaac Earle, Standard Operation, Target 2, Target, T2-MK2 beam spot photos, M20BB moved to storage pit
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The T2-MK2 target was moved from the beamline to the hot cell on January 8th. The field at 0.5m was 130mSv/hr. Photographs of the beam
spot of the Position 4 target are attached below. This is a 12mm beryllium target (ID: "JUL.06#4). This is the only target on the T2 ladder
that has seen beam since it was installed on October 10, 2017. A shielding plug was installed on the T2 flange. A new 5cm target will be installed |
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Friday, May 05, 2017, 15:09, Isaac Earle, Development, Target 2, Target, T2-MK2 beam spot check in hot cell
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On May 5th the T2-MK2 target was moved to the hot cell for the purpose of checking the beam spot on the Position 2 beryllium target to confirm
the results of the T2 area realignment detailed in E-logs #218 and #220. In preparation beam was put on this target overnight for approximately 1.5hrs
at 10uA and 4 hours at 50uA (previously had not seen beam). Also, there had been issues with the T2 profile monitor over the last couple days, so |
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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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