 Wednesday, May 04, 2022, 11:27, Adam Newsome, Standard Operation, Target 2, M9, M9 and M20 Beam Blocker Actuation Test
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The beam blockers for M9 and M20 were actuated, and vacuum was monitored to ensure no disruptions. Both actuation tests were successful. Motion was observed
and no abnormalities noted. Cabling and air connections checked: OK.
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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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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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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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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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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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Monday, January 23, 2012, 15:27, Isaac Earle, Repair, Target 2, Target, M20BB returned to beam line. M9BB moved to hot cell.
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M20 beam blocker was transferred from the hot cell to the beam line.
M9 beam blocker was transferred from the beam line to the hot cell.
Field at 50cm from M9 beam blocker during removal: 5000μSv/hr |
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Friday, April 13, 2018, 14:21, Isaac Earle, Maintenance, Other, Other, M20 beam blocker MRO and T1/T2 final checks
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The M20 beam blocker main shaft seals were replaced as per the T1/T2 target device maintenance schedule. Both air cylinders were found to be leaking
past the seals, and the blocker would not actuate in the hot cell even with 100psi (max site air) so they were also replaced. With the new cylinders
the blocker actuated smoothly at about 45psi. It is recommended that the air cylinders be replaced every second service (once per 10 years). |
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Friday, March 03, 2023, 16:00, Albert Kong, Maintenance, Target 2, Other, M20 Return to T2 Monolith + Vaccum Leak / T1-T2 Valve Re-inspection
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We moved M20 back to the T2 monolith and re did the connections for air + limit switches + T2 profile monitor air.
Note: T2 profile monitor electronics sparked when we moved M20 out initially. (Update: Shengli Liu from probes group performed a test on the T2 |
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Monday, March 06, 2023, 16:58, Albert Kong, Repair, Target 2, Cooling, M20 O-Ring Replacement and Valve Replacement Leak Check
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We replaced tha O-ring on M20 at T2 and brought the target station down to vacuum, which allowed the target water pump to be turned on.
After turning the pump on, we inspected the replaced valves for any leaks and found none - the flow on the demineralizing line was adjusted to
1.2GPM (also done at T1) by turning the needle valve. |
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Tuesday, February 21, 2023, 16:56, Albert Kong, Maintenance, Target 2, Other, M20 BB moved to meson hall hot cell roof
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The M20 beam blocker was moved from the T2 monolith to the meson hall hot cell with the remote handling flask (completed ~4pm).
This operation was performed in preparation for M20 maintenance (main shaft o-ring replacement + air cylinder re-lubrication).
RPG surveyors measured 20,000 CPM from swiping the surface of the beam blocker shaft, and measured 25 mSv/hr on contact with the beam blocker. |
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Friday, January 20, 2012, 10:23, Isaac Earle, Repair, Target 2, Target, M20 BB Shaft Bearing Replaced
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The replacement shaft bearing was machined by Maico Dalla Valle and installed in the beam blocker. Smooth operation of the beam blocker air cylinders
was confirmed, and the beam blocker is scheduled to be re-installed in the T2 monolith on Monday morning (Jan 23). |
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Thursday, June 11, 2015, 16:59, Isaac Earle, Development, Other, Controls, Lab Test of New T1/T2 Level Sensors
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The new T1/T2 level sensors (Omega LVCN414) were tested in the RH HC lab today using the Omega software on a laptop and positioning the level sensor
flange above a bucket of water with similar height as the expansion tank.
The level sensors behaved as expected with varying water level. |
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Friday, November 04, 2011, 13:36, Isaac Earle, Maintenance, Target 2, Target, Kaon Target (Training)
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Moved Kaon Target from storage pit to remote handling hot cell using flask as training exercise. Safety surveyor scanned storage pit
area (wide flanges: clean, pit floor: 50cpm). Returned flask to hot cell lab floor and covered storage pit. |
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Thursday, April 14, 2022, 14:38, Adam Newsome, Other, Target 2, Diagnostics, Issue with Protect Monitor SHV Cable
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Diagnostics group (Shengli Liu) noted a lack of connectivity between control panel and T2 Protect Monitor via the high voltage cable. Upon inspection
it was noted:
The cable was very brittle due to radiation exposure and it was cracking in multiple places
In the SHV connector, the |
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Tuesday, October 06, 2015, 14:04, Isaac Earle, Other, Other, Controls, Instructions for loading display screen for T1/T2
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The following instructions were provided by Graham Waters:
From diag5pc bootup |
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Friday, June 28, 2024, 15:44, Albert Kong, Other, Other, Transfer Flask, Inspection of Primary Target Transfer Flask
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Normal
0
false
false
false
EN-CA
JA
X-NONE
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Thursday, February 15, 2024, 12:38, Riley Sykes, Repair, Other, Hot Cell, Indium Extruder Hand Pump
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Feb 1 2024
Hand Pump observed to be losing pressure at full extension of cylinder, seals likely blown. Due to Enerpac P84 being an obsolete model, a newer
model hand pump was ordered. |
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Friday, November 29, 2024, 11:57, Adam Newsome, Maintenance, Other, Hot Cell, Hot cell and warm cell maintenance tasks
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The following maintenance tasks were completed on 2024-11-29 by A. Newsome, A. Kong, A. Tam, M. Dalla Valle:
Warm cell right window water level topup... the water level was a couple inches lower from the top. Using a tube connected to the nearby
sink, the level was topped up fully. See attached before/after picture.
Hot cell oil level checks:
Right side OK. |
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Thursday, June 07, 2012, 18:08, Isaac Earle, Repair, Target 1, Target, Hot Cell Manipulator Broken Tape
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A tape snapped on the west side manipulator today while working on the T1-MK2 target repair. The tape travels through to the slave end, so
unfortunately the manipulator will need to be removed from the hot cell for repair. This is the same manipulator that was just out for a broken cable
repair, and I suspect that the tape was accidentally kinked or dislodged from a pulley when the manipulator was disassembled. |
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