 Thursday, October 06, 2016, 12:16, Isaac Earle, Development, Target 1, Controls, Expansion Tank High Level Warning Added
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An expansion tank high level warning has been added to the T1/T2 control system under Work Request #4011. The purpose for this new warning
is to alert staff of an unexpected water increase in the unlikely scenario that a leak develops in the heat exchanger between the two fluids and CuALCW
on the secondary side enters the target water system. The new thresholds for high level warn, low level warn, and low level trip have been set at |
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Thursday, March 30, 2017, 09:48, Isaac Earle, Development, Other, Controls, T1/T2 control system de-glitching & target ID changes
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The following changes were made to the T1/T2 PLC control system:
- De-glitching system investigated and Tony discovered that it was programmed incorrectly: the de-glitch time was observed only when a PV
changed from bad state to good, not the opposite (meaning there was actually no de-glitching in place since system start-up in 2016!). This was reversed |
Wednesday, April 05, 2017, 17:55, Isaac Earle, Development, Other, Target, T2 area devices alignment strategy 
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A strategy for alignment of the T2 protect monitor, T2 target, and T2 Collimator A was discussed today and decided upon by Yuri Bylinski, Isaac Earle,
Yi-Nong Rao, and Roman Ruegg. The purpose of the adjustment is to try to reduce the amount of beam lost as it passes through the T2 area (presumably
being blocked by the collimator because it is not possible to steer the beam through all three devices in their current configuration). Keeping in |
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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, 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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Thursday, July 27, 2017, 09:34, Keith C Ng, Development, Other, Other, test 2
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| test 2 |
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Thursday, December 07, 2017, 13:54, Isaac Earle, Development, Other, Other, Waste pails transferred from warm cell storage bunker to rad waste pit
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Six 5 gallon pails were transferred this morning from a temporary storage bunker in the Warm Cell to the Rad Waste Pit for long term storage. The
pails contain various BL1A active waste from the East Hot Cell including dozens of irradiated beryllium and graphite targets. The field from the
pails ranged from 0.1 to 9mSv/hr at 0.5m. The work was performed according to the clean-out procedure (Document-142965). |
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Monday, June 24, 2019, 14:29, Isaac Earle, Development, Target 1, Target, T1 and T2 target alignment frames overhauled 8x
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The following work was completed on both the T1 and T2 target alignment frames
One of the short taper pins on the top of the frame was swapped for a longer version to simplify flask alignment to the frame (now one
pin can be aligned at a time instead of both concurrently)
Three permanently mounted cameras installed to view east/west alignment, north/south |
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Friday, February 28, 2020, 09:06, Isaac Earle, Development, Other, M9, M9 Q1Q2 service stand floor plate installed
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The M9 service stand floor plate (TB23351) was installed in the M9 pit yesterday. Prior to installation all 5 threaded inserts were tested
using a 1/2"-13 stud tool on an RH pole. The west most hole (shown in red below) had damaged threads and the stud could only be threaded in
2 turns. All other locations (shown in green) had usable threads with 6-8 full turns possible with the stud tool. The plate was installed using |
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Wednesday, March 11, 2020, 10:29, Isaac Earle, Development, Other, M9, M9 Q1Q2 service stand foot plate installed
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The M9 Q1Q2 "foot" plate (TB23363) has been installed over the floor plate. A nominal gap between the plates of 1/2" was set
before lowering the plate, it was then leveled using the three adjustment bolts resulting in a larger gap. After leveling, the plate was lifted to
remove the spirit levels and lock the position of the leveling bolts. The plate was then re-lowered and the tiedown bolt assemblies (TB23383) were |
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Tuesday, June 09, 2020, 17:01, Isaac Earle, Development, Other, M9, Cables and helium leak check line installed to M9 service stand
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The 10-pin thermal switch wire, 2-pin steering wire for Q2, and a 1/4" copper tube for remote helium leak check were installed through the
service chase with the power cables and connected to the M9 service stand. Approximately 10m of extra cable (2-pin and 10-pin) was coiled and left
in the cooler section of the service chase after the first sharp bend. The cables and the tubing are currently run as far as the vertical cable tray |
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Wednesday, June 10, 2020, 08:58, Isaac Earle, Development, Other, M9, T2-M9 and M9-B1 flange scan data
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Laser tracker scan data from 2017 and 2019 attached as a backup. Original files from Beamlines Group who also keep copies on \\trwindata\experimental
support\alignment\T2-M9_data |
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Friday, June 12, 2020, 13:54, Isaac Earle, Development, Other, M9, M9 Q1Q2 water header installed
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The Q1Q2 water header (TB23481) was mounted this morning as per installation drawing TB23400.
Heat shrink tubing was applied to the B1 power cables (two positive, two negative) over the length of cable in the highest field which was showing
some signs of radiation damage on the insulation. The tubing used was McMaster-Carr PN 75665K932 (Clear PTFE, 4:1 shrink ratio, 1.0" ID before |
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Tuesday, July 07, 2020, 13:22, Isaac Earle, Development, Other, M9, M9 Q1Q2
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The M9 Q1Q2 magnet assembly lift beam has been installed according to drawing TB23401. The side-to-side as well as beam-axis direction adjustment
features were tuned so that the assembly is level when lifted.
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Tuesday, July 07, 2020, 15:13, Isaac Earle, Development, Other, M9, M9 Q1Q2 service stand Lemo connector wiring
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The diagram below shows the wiring for the two connectors on the service stand (the wires running from the stand to the power supplies. (see TB23400
for details)
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Thursday, July 09, 2020, 06:44, Isaac Earle, Development, Other, M9, Alignment of M9 Q1Q2 magnets complete
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Mike Vogel reported that alignment of the Q1Q2 assembly w.r.t. the T2 and B1 flanges was completed on July 7. This was performed in the test
stand with the flange positions set to the measurements taken in the 2019 shutdown. Alignment to the theoretical location was achieved within 0.1mm.
The axis of the Q1 and Q2 magnets were aligned to each other previously within similar accuracy. |
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Wednesday, February 17, 2021, 10:39, Isaac Earle, Development, Other, UCN, UCN Target Cask Testing 8x
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A trial run of remote removal of the UCN target was performed using the shielded target cask (TTA0335) developed in 2020. The work took place between
Feb 9 - 17 under work permit C2021-02-09-1.
The procedure in work instruction Document-187117 R1 was followed. Draining and purging of the water system as well as venting of helium from the |
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Wednesday, June 29, 2011, 15:27, John Wong, , , , test
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| blah blah blah.... |
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