 Wednesday, September 11, 2024, 13:38, Adam Newsome, North Hot-Cell, Repair, , , Spare Manipulator - Y-axis motion not functioning
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Update 2024-09-12: C. Fisher confirms this is actually normal behaviour. The Y-axis motion is inhibited when X and Z
are in a certain configuration, which was true when the manipulator was mounted on the wall in storage position. Non-issue. A note about this has been
made in the operator manual. |
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Wednesday, July 18, 2012, 16:49, Grant Minor, South Hot-Cell, Development, , , South Hot Cell Ventilation Alarm Trip
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Today (Wednesday July 18th) at around 4:15 pm I was taking a small tour group from VECC into the Target Hall. In the process of discussing the mechanical
design of the Target Modules and South Hot Cell turntable I inadvertently lifted the Aluminum Hatch Cover of the Hot Cell about 2 inches in an effort
to explain something. This tripped the ventilation alarm before I realized what I was doing. I evacuated the visitors from the Target Hall, checked |
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Wednesday, July 18, 2012, 16:49, Grant Minor, South Hot-Cell, Development, , , South Hot Cell Ventilation Alarm Trip
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Today (Wednesday July 18th) at around 4:15 pm I was taking a small tour group from VECC into the Target Hall. In the process of discussing the mechanical
design of the Target Modules and South Hot Cell turntable I inadvertently lifted the Aluminum Hatch Cover of the Hot Cell about 2 inches in an effort
to explain something. This tripped the ventilation alarm before I realized what I was doing. I evacuated the visitors from the Target Hall, checked |
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Friday, June 29, 2018, 10:27, chad fisher, South Hot-Cell, Maintenance, , , South Hot Cell Filter Change
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At the end of manipulator repair Thursday the ventilation pre-filter in the hot cell was changed. Old filter remains in the hot cell until such time
as it can be removed. |
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Wednesday, March 15, 2017, 07:45, chad fisher, South Hot-Cell, Maintenance, , , South Hot Cell Fields
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I have moved the suspected "hot" items in the hot cell and placed them under some lead bricks. I have re-measured the fields and it has been
reducded to 90 uSv\h at the manipulator repair area and 110 uSv/h at the previous 1.82 mSv\h area. |
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Tuesday, June 26, 2018, 08:56, chad fisher, South Hot-Cell, Standard Operation, , , South Hot Cell Fields
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| hot items have been moved and shielded as much as possible. Field at left manipulator has been reduced from 560 uSv/h to 85 uSv/h. |
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Friday, March 10, 2017, 09:19, chad fisher, South Hot-Cell, Standard Operation, , , South Hot Cell Field Measurements
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| The fields in the hot cell have been measured by means of a pole monitor through the tool port. Field was measured to be 25 uSv/h. |
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Thursday, November 08, 2018, 09:27, chad fisher, South Hot-Cell, Maintenance, , , South East Manipulator cable replacement
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The handle cable on the east manipulator of the south hot cell has been replaced. Old cable showed signs of wear but had no broken strands. Manipulator
is back together but still needs to be re-tensioned. |
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Tuesday, September 19, 2017, 10:40, chad fisher, South Hot-Cell, Maintenance, , , South East Manipulator Maintenence
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Entered hot cell to preform replacement of slave tong cable. Existing cable shows no signs of wear so it has been re-installed. A spare tong cable has
been loaded into a spare tong while in the hot cell in preparation for next time this cable needs to be replaced. |
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Tuesday, August 16, 2016, 11:27, chad fisher, South Hot-Cell, Maintenance, , , South Cell Field Readings
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Field readings have been taken at the south hot cell in preparation for entry into the cell to fix manipulator.
Field on contact at aluminum cover is 66 uSv/h, and a pole monitor into the cell through the tool port read 297 uSv/h. |
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Friday, March 01, 2019, 10:23, Travis Cave, Spent Target Vault, Standard Operation, , , Source tray moved
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The old TM#2 source tray and TM#4 optics tray have been removed from the vault and placed into the spent target storage on tray 9 which is meant
for source trays. |
Thursday, October 19, 2017, 14:20, Anders Mjos, Assembly/Bench Test, Standard Operation, , , Source tray inspection 
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Two minor chips in the main 60 kV insulators on the source tray was inspected today by Anders, Tom and Aurelia. The chips are small enough that
they should not be a problem. See photos for details. |
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Wednesday, October 18, 2017, 14:54, Anders Mjos, Assembly/Bench Test, Standard Operation, , , Source tray assembly electrical check
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Source tray meggered today by Anders and Keith
GND - MSP OL @ 1000V
MSP - EE OL @ 1000V |
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Thursday, June 13, 2013, 09:18, chad fisher, South Hot-Cell, Repair, TM3, , Source Tray/Extraction Column Removal
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TM3 Rev 2 source tray/extraction column insertion into its storage was completed yesterday and it was then removed from the hot cell and put into
the anteroom until June 25th when it will be moved into the vault tunnel.
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Wednesday, December 13, 2017, 15:32, Anders Mjos, Assembly/Bench Test, Maintenance, TM2, , Source Tray inspection
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The Source tray was inspected in the RH shop today by Anders, Friedhelm and Jens. The routing of the lines are satisfactory, however a design proposal
to remove the ground electrode line will be made. This design will have to ensure a proper connection from the electrode to ground (using the window cooling
lines). All other lines are OK at this point. Some fine adjustments are expected after brazing and soldering to maintain high voltage separation. Photos |
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Monday, April 29, 2013, 15:58, Bevan Moss, South Hot-Cell, Repair, TM3, , Source Tray Removal
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Chad removed the source tray from TM3 today, see attached picture (video was also taken). There was some interference between the window cooling
lines and the frame work as well as the clamps for the ground electrode and the water block alignment jig. There was also interference between the optics
alignment post (specifically the mushroom top) and the water block alignment jig. Investigation into these inferences needs to be completed as they could |
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Tuesday, July 26, 2016, 11:22, chad fisher, South Hot-Cell, Maintenance, , , Soth Hot Cell Waste Storage Vault Tunnel
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The two 45 gal (m) drums of waste removed from the south hot cell in December 2015 and January 2016 were transferred from the north hot cell to the shaft
of the east vault tunnel on Monday, July 25th 2016 and subsequently to the east tunnel bunker in the vault tunnel on Tuesday, July 26th, 2016.The first
drum (removed from the hot cell in December) containing both activated and contaminated metals was measured at 900 uSv/hr @ .5 m and the second drum (removed |
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Friday, June 22, 2018, 13:59, chad fisher, South Hot-Cell, Repair, , , Soth Hot Cell Fields
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Field measurements have been taken to determine the level before entry for repair of manipulators.
Field on contact at manipulator is 560 uSv/h, and at approximately 1/2 meter at table surface 920 uSv\h. |
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Thursday, July 06, 2017, 14:23, Isaac Earle, North Hot-Cell, Repair, , , Slave side Z motion tape snapped on NHC right side manipulator
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The NHC right side manipulator was evaluated today to check if operation was normal through all ranges of motion. The manipulator was first moved
through usual motions without the electric motion drives: the feel was fairly normal, a sound could be heard from the master side Z motion tapes rubbing
on the sides of the pulleys, this problem had been identified a few weeks ago however it was significantly reduced since the master side upper and lower |
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Wednesday, May 20, 2020, 13:30, David Wang, Safe Module Parking, Maintenance, , , Silo area radio active waste clean up.
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Sorted and packed one 55 gallon drum with low contamination and active stuffs which are placed around silo area in the past. They include old poly water
cooling lines replaced from ITE, ITW and TCS, contaminated paper rags , gloves, and plastic bags,air cooling fans for turbo pumps, EE resistor packaged
used on module top before, flow meters and cables used in ITW, etc. After packing, The field outside the drum on contact is less than 10 usv/hr. |
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