 Thursday, February 01, 2024, 11:16, Albert Kong, Standard Operation, Other, Cooling, Spent resin can rinse, purge, and drying
|
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 |
Tuesday, May 07, 2024, 13:21, Albert Kong, Repair, Target 2, Cooling, T2 Cooling System Expansion Tank Ultrasonic Level Sensor Repair 
|
At ~8am on May 06, the expansion tank level sensor for the T2 cooling system suddenly became noisy.
Cyclotron fault ref: 16915
Approximately 11:00 am today, the noisy sensor was replaced with a spare, upon which it was learned that the spare sensor is broken (registers |
|
Monday, September 09, 2024, 09:39, Albert Kong, Other, Target 2, Cooling, B1A:T2CS:FGSEC:RDFLOW noisy, CYCLOTRON Fault 17321
|
Secondary flow sensor B1A:T2CS:FGSEC:RDFLOW on the T2 cooling station suddenly became very noisy at around 11 pm, 01 September 2024.
The sensor reading would fluctuate from 0-150 gpm which is beyond typical noise levels for these sensors (~2gpm).
The noise spontaneously ended at around 4 am, 05 September 2024. |
|
Friday, January 10, 2025, 18:36, Albert Kong, Standard Operation, Other, Cooling, T1/T2 cooling packages drained
|
The T1 and T2 cooling packages were drained starting at 14:36, by 14:48 both expansion tanks had dried, meaning the draining rate for both tanks were
~80L/hr, generally it will only take 2 hours to fully drain the system.
Tritium samples were collected after allowing the system to drain for ~5 minutes to clear out water in the drain lines and actually collect samples |
|
Thursday, January 23, 2025, 16:58, Albert Kong, Maintenance, Other, Cooling, T1/T2 CUNO filter exchange, hansen fitting inspection, T2 FGSEC proteus electronics replaced, T2 FGSEC and Q1 paddle wheel replaced
|
All CUNO filters at T1 was exchanged on Jan 17.
At the time, access to the CUNO filters at T2 was obstructed by a shielding block, we will exchange these filters once the block is moved.
All Hansen fittings on the target station were inspected, all o-rings found to be in good condition. |
|
Thursday, January 23, 2025, 17:09, Albert Kong, Maintenance, Other, Cooling, T1 T2 water solenoid valves rubber gasket and o-ring exchange
|
All rubber components on the T1 T2 water solenoid valves were exchanged on Jan 22, 2025.
To service the heat exchange water and all collimator solenoid valves, the low active copper supply line in the 1A tunnel had to be shut off (see
pictures). Note that the shut off for the T2 secondary water did not work perfectly, it is possible that there either the valve was not shut off properly |
|
Monday, February 10, 2025, 16:52, Albert Kong, Standard Operation, Target 1, Cooling, T1\T2 Cooling Packages Refill and Restart 6x
|
The T1 cooling package was refilled to ~38cm and restarted. Shortly after restarting reservoir level dropped and settled to 37.8cm.
No visible leaks when viewed from the Meson Hall south walkway,level seems steady after ~1 hour of operation, water conductivity also returned
to normal after a few minutes of flow. |
|
Monday, May 25, 2015, 12:48, Isaac Earle, Repair, Target 1, Controls, T1/T2 Controls System Crash
|
At 9:15am this morning BL1A tripped off due to loss of the watchdog signals for the T1/T2 control system. Graham Waters investigated and the
problem was found to be a corrupted initialization file. The error was corrected, and BL1A was started by 11:30am.
|
|
Thursday, June 11, 2015, 16:59, Isaac Earle, Development, Other, Controls, Lab Test of New T1/T2 Level Sensors
|
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. |
|
Friday, June 19, 2015, 17:11, Isaac Earle, Development, Other, Controls, PLC Test of Ultrasonic Level Sensor
|
The new T1/T2 level sensors (Omega LVCN414) were hooked up to the PLC and the test performed
on June 11 was repeated.
The water level above the base of the bucket was measured using a tape measure, as well |
|
Tuesday, October 06, 2015, 14:04, Isaac Earle, Other, Other, Controls, Instructions for loading display screen for T1/T2
|
The following instructions were provided by Graham Waters:
From diag5pc bootup |
|
Monday, March 07, 2016, 18:22, Isaac Earle, Development, Target 1, Controls, Preliminary Testing of T1 Control System Complete
|
Preliminary testing of the new PLC control system and EPICS interface was completed today for the T1 target, T1 cooling package, and T1 collimator.
All systems behaved as specified. This test did not include testing of any T1 thermocouples which will be included as part of the T2 test program
to follow. This is not considered system commissioning, which will follow after all preliminary testing is complete and the commissioning plan document |
|
Wednesday, March 16, 2016, 16:50, Isaac Earle, Development, Target 2, Controls, Preliminary Testing of T2 Control System Complete
|
Preliminary testing of the new PLC control system and EPICS interface was completed today for
the T2 target, T2 cooling package, T2 collimators, and T1 thermocouples. All systems behaved as specified.
Review of the commissioning plan is currently underway. |
|
Thursday, April 07, 2016, 16:44, Isaac Earle, Development, Other, Controls, T1/T2 Controls "Assembly Tests" Completed
|
The T1/T2 Control System "Assembly Tests" (Document 118467 Release #1, Section 5) have been completed. The expected result, as
written in the document, occurred for every test. The T2 Shield Thermocouple #3 (B1A:T2:TC3SHLD:RDTEMP) showed slightly erratic behaviour when
viewing archived data. It is uncertain at this point whether or not it will need to be bypassed in the B1A:T2:TGTRDY interlock. |
|
Tuesday, June 21, 2016, 09:25, Isaac Earle, Development, Other, Controls, T1/T2 EPICS System With-Beam Testing
|
With-beam commissioning tests were completed today by Tony Tateyama and Isaac Earle. The test results are attached in PDF format. These
tests are described in Section 7 of the Commissioning Plan (Document-118467 Release #2). These tests were not part of the official commissioning,
but intended as an additional check of system functionality with beam on, and to confirm that the CCS current protection system performs as expected. |
|
Tuesday, August 30, 2016, 14:09, Isaac Earle, Development, Other, Controls, T1/T2 PLC Code Update
|
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 |
|
Thursday, October 06, 2016, 12:16, Isaac Earle, Development, Target 1, Controls, Expansion Tank High Level Warning Added
|
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 |
|
Thursday, March 30, 2017, 09:48, Isaac Earle, Development, Other, Controls, T1/T2 control system de-glitching & target ID changes
|
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 |
|
Thursday, May 05, 2022, 14:38, Adam Newsome, Maintenance, Target 2, Controls, T2-MK1: profile monitor actuation check and repair to connector
|
An attempt was made to actuation the T2 profile monitor, however it showed up in EPICS as being not present. Furthermore, the "Remote"
indicator light on the physical controller was not lit up despite the switch being in remote mode. The limit switch indicator light was working.
|
|
Wednesday, March 15, 2023, 15:56, Albert Kong, Maintenance, Target 2, Controls, T2 - M9 and M20 beam blocker actuation and vacuum test 6x
|
We tested the actuation of the M9/M20 beam blockers on the T2 monolith (3-4pm).
Vacuum levels remained steady throughout so the M20 o-ring replacement that was performed this shutdown was successful (see strip of 1ACG4 - vacuum
gauge for T2 systems interlock). |
|