 Monday, July 10, 2017, 16:20, Keith C Ng, Repair, Target 2, Target, T2 Heat Exchanger Secondary Side Solenoid Valve Failure 
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The T2 heat exchanger secondary side solenoid failed on July 9 at approximately 19:30 (EPICS ID: B1A:T2CS:SVSEC). The valve was replaced with a
spare and the cooling package is now running normally.
The valve at this location also failed in November 2016: https://elog.triumf.ca/TIS/RH-Meson+Hall/211 |
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Monday, May 15, 2017, 16:55, Isaac Earle, Other, Target 2, Target, T2 profile monitor actuation issue
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On Thursday May 11th operators attempted to move the T2 profile monitor (T2-MK2) to the IN position but were unsuccessful. The monitor would
leave the OUT limit, but would not reach the IN limit. This was repeated 2 times. The air amplifier was inspected and nothing out of the ordinary
was noted. The T1 profile monitor was tested and was working properly. At the time it was suspected that the monitor cassette had become dislodged |
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Tuesday, May 09, 2017, 16:35, Isaac Earle, Repair, Target 2, Cooling, T2 target water flow gauge paddle wheel changed
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During the target move on Thursday May 4th the paddle wheel and paddle wheel shaft for the T2CS:FGTGT sensor were changed to address transient
spikes of approximately +/-1.0 gpm which were causing nuisance trips. There have been no transient spikes recorded since the change, and the nominal
flow value dropped from 4.9gpm to 3.6gpm. Fault report #9836 has been returned, and the warning and trip levels, which were set higher to avoid nuisance |
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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, 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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Tuesday, April 11, 2017, 17:02, Isaac Earle, Maintenance, Target 2, Cooling, T2 Cooling System MRO
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The following work has been completed on the T2 cooling package:
- T2 system drained to South TNF holding tank (completed in Jan 2017, water already released)
- Target water and demin. circuit Cuno filters changed |
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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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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 |
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Monday, March 27, 2017, 16:15, Isaac Earle, Repair, Target 1, Cooling, T1 Cooling System Target Water Return Hose Damaged
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The 18' shielding block which lies west of the T1 cooling package was removed on Friday Mar 24 so that vacuum equipment could be craned into the 1A tunnel.
During replacement, the flexible SS hose for T1 target return water got caught under the block and was ripped apart. Workers in the area did
not realize this had occurred. The cooling package tripped off when the hose ripped (likely due to low water flow or low supply pressure). In |
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Wednesday, March 15, 2017, 16:13, Isaac Earle, Standard Operation, Other, Active Sump, Meson Hall Hot Cell Lab Active Sump Water Released
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On March 13th in the morning the Meson Hall Hot Cell Lab active sump reached the high level sensor. The system responded as expected: high
level panel warning light illuminated, siren sounded, and MCR notified via "B1 RCR1 RM6 WARN". A 1L sample was delivered to RPG for analysis.
After approval, the sump was pumped out over the following two days. The procedure in Document #64834 was followed for sampling and pump-out. |
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Thursday, January 19, 2017, 08:55, Isaac Earle, Standard Operation, Target 1, Cooling, T1 MRO work complete
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The following work was completed on the T1 cooling package:
- water drained to BL1A holding tank
- all resevoir o-rings changed |
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Thursday, January 12, 2017, 09:21, Isaac Earle, Standard Operation, Target 2, Target, T2-MK2 Position 1 Beam Spot
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The beam spot on the 10cm beryllium target in Position 1 on T2-MK2 (Target ID: "OCT.06#3") was measured and photographed yesterday. A
fairly well centered spot was measured to be approximately 4.6mm wide x 5.2mm tall on the entrance window and 5.7mm wide x 7.6mm tall on the exit window
using the Nikon micrometer level. This target first saw beam on June 16, 2016. |
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Monday, January 09, 2017, 15:07, Isaac Earle, Standard Operation, Target 2, Target, T2-MK2 Target Moved from BL to HC
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The T2-MK2 target assembly was moved from the beam line to the hot cell today. A maximum field of 203mSv/hr was measured at approximately
0.5m
A steel shielding plug has been installed in the T2 hole to reduce shine and allow the T2 volume to be pumped down. |
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Thursday, November 17, 2016, 17:58, Isaac Earle, Repair, Target 2, Cooling, T2 Heat Exchanger Secondary Side Solenoid Valve Failure
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At approximately 11am today the T2 cooling package heat exchanger secondary side water flow suddenly dropped from ~11gpm to 0. This was confirmed
to be a real reading by observing that with no secondary cooling both the inlet and outlet target water temperatures rose steadily with beam on the target.
While standing on the blocks in the T2 area and having a controls expert (wither "superuser" access mode) actuate the secondary side solenoid |
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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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Friday, September 30, 2016, 16:59, Isaac Earle, Repair, Target 1, Cooling, T1 Cooling System Inlet Pressure Transducer Replaced
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The T1 cooling system inlet pressure transducer (EPICS ID: B1A:T1CS:PGIN, Omega part # PX315-100GI) began failing in August (exhibited gradual
decline in pressure with no corresponding change to flow rate or outlet pressure). A new transducer was installed on Sept 30 2016 which fixed the
problem. Cyclotron Fault Report #9238 was returned and the temporary bypass on the warning level was removed. |
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Friday, September 30, 2016, 16:54, Isaac Earle, Repair, Target 1, Target, T1-MK2 - New Beryllium Targets Installed
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The following work was performed on the T1-MK2 target assembly during the September 2016 Mini-shutdown:
Monday Sept 26: |
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Thursday, September 08, 2016, 17:26, Isaac Earle, Development, Other, Active Sump, New Active Sump High Level Switch and Electronics Installed
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To address the deficiencies identified in E-Logs #204 and #205 the old active sump high level switch was replaced with Omega LV164SS model (316SS stem
and float, 4' length, standard mount) using adaptor flange TRH1316 to mount to the top flange of the sump. A new electrical box was also installed
(circuit diagram attached in PDF format). The circuit was designed by Don Jackson and wired by Travis Cave. Connection to the RCR Lab PLC was |
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Tuesday, August 30, 2016, 14:09, Isaac Earle, Development, Other, Controls, T1/T2 PLC Code Update
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A new version of the T1/T2 PLC code has been uploaded to the PLC CPU. The main change in the new version is a fix to a bug related to the
target MK# which may have caused the previous CPU crashes. The EPICS interface now needs to be updated so that no target information is displayed
on the EPICS screens when there is no target installed, or jumpers for both MK1 and MK2 are detected. This must be tested during the next maintenance |
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Wednesday, July 06, 2016, 13:31, Isaac Earle, Other, Other, Active Sump, Active Sump RCR Lab and MCR Alarms Not Working - Suspect Controls Issue
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Further tests were done on the active sump high level float switch today. The switch was triggered 1 time by filling the sump, and approximately
8 times by tilting the sensor manually. A local alarm sounded in the hot cell lab each time, but only one time in the RCR Lab and MCR (this occurred
on the final trial). Fault report #9099 has been submitted to Controls Group. Although the existing float sensor did cause a local alarm when |
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