Logbooks Lab Maintenance Evaporator_1 Evaporator_2 Laser cutter Target Production Test-Stand RH-ISAC RH-Cyclotron RH-Meson Hall RH-Beamlines RH-ARIEL
  RH-Cyclotron, Page 1 of 9  Not logged in ELOG logo
ID Date Author Category Type Subjectdown
  30   Monday, January 27, 2014, 14:42 Travis CaveShieldingStandard Operationshields and radiation survey

The cyclotron radiation survey was aborted due to the orbit not working recording the numbers correctly. One shield has been in installed.

Jan 29th: uploaded meeting minutes from January 28th regarding the orbital counter problem. - Grant Minor

 

Attachment 1: Meeting_Orbital_Counter_Problem_Jan_2014.pdf
Meeting_Orbital_Counter_Problem_Jan_2014.pdf
  31   Tuesday, January 28, 2014, 14:59 Travis CaveShieldingStandard Operationshields

200's, 400's, 500's, 600's, and a pallet of 700's have been installed

  33   Thursday, January 30, 2014, 13:47 Travis CaveCyclotronStandard Operationshields

All shields, pothole covers, and ladders have been installed into the cyclotron.

  38   Tuesday, February 25, 2014, 15:00 Travis CaveShieldingStandard Operationshields

Started on the removal of shields.

  39   Wednesday, February 26, 2014, 14:55 Travis CaveShieldingStandard Operationshields

More shields have been removed from the cyclotron only 16 remain. I was also noted that the lift trolley is making an odd noise and will be looked at after the shutdown.

  40   Monday, March 03, 2014, 13:09 Travis CaveCyclotronStandard Operationshields

all shields, porthole covers and ladder out and copper blockers in. Some conmination was found on the pads of the ladders (about a 1000 count or so) and was removed.

  78   Friday, February 05, 2016, 14:55 Travis CaveShieldingStandard Operationshadow shields

all 200, 400, 500, 600, and some 700 series of shield are in.

  80   Tuesday, February 09, 2016, 14:48 Travis CaveCyclotronStandard Operationshadow shields

All shadow shields have been installed. Ladders, the pothole covers and the second rad survey will be done tomorrow.

  81   Wednesday, February 10, 2016, 14:53 Travis CaveCyclotronStandard Operationshadow shields

All cyclotron in tank work is completed.

  79   Friday, February 05, 2016, 14:57 Travis CaveService BridgeMaintenanceoutrigger problem

outrigger 1 had a power failure, bridge was removed power restored and outrigger parked, outrigger will be looked at once the shield are done hopefully.

  24   Monday, September 30, 2013, 14:02 Travis CaveService BridgeMaintenancenew festooning

The festooning and bearings for the festooning cars for both outriggers has been replaced and it is in working order.

  139   Monday, March 21, 2022, 13:14 Adam NewsomeTrolleyRepairVideo Trolley Mk 1 - Radial Limit Switch Replacement

An issue was observed in which radial motion on the Video Trolley Mk 1 did not respond to commands. After troubleshooting, it was determined that this was due to the "OP LIMIT" interlock - the "OP LIMIT" pushbutton on the console was illuminated in red, and needed to be continuously held down in order to operate the radial in/out motion buttons.

 

It was determined that the root cause of the issue was a failed radial limit switch which was likely damaged during trolley transport. The limit switch was replaced, and functionality was restored.

  4   Friday, February 17, 2012, 15:07 Don JacksonTrolleyRepairVideo Trolley Failed in Cyclotron Tank

All control to the video trolley was lost during remote photographing of components in the cyclotron. The control system and cameras on the trolley were still operational leading to the suspicion that a power cable was broken either on the trolley or the bridge festooning. Two trips into the tank were made to evaluate the problem and attempt to push the trolley out of the tank. Pushing the trolley only managed to move the trolley a few feet before jamming. A lift mechanism was used to raise the drive wheel without any success. This device was modified and used successfully to remove trolley completely from the tank.

Three trips by two persons were required to remove the trolley. There was a total dose of 0.5 mSv was received by the two persons going into the tank. An additional 0.18mSv was receive by 3 persons outside of the tank.
 
The trolley will not be used in the cyclotron until the problem is diagnosed and repaired. This trolley is not critical to any upcoming remote handling operations.
Attachment 1: Stuck_Video_Trolley_Feb_17_2012_005.jpg
Stuck_Video_Trolley_Feb_17_2012_005.jpg
Attachment 2: Stuck_Video_Trolley_Feb_17_2012_001.jpg
Stuck_Video_Trolley_Feb_17_2012_001.jpg
  147   Friday, January 27, 2023, 12:12 Adam NewsomeInfrastructureDevelopmentVault crane - inspection, remote pendant installation

The vault crane annual inspection was completed by Tom Kauss.

 

The wired pendant was replaced with a remote pendant by Tom Kauss.

  131   Thursday, April 01, 2021, 13:47 Adam NewsomeCyclotronStandard OperationVault Shield Door Closed

The vault shield door has been closed and seal inflated. The operation was performed with no issue.

  144   Tuesday, May 10, 2022, 11:31 Nadia JorgensonCyclotronStandard OperationVault Shield Door Closed

 The vault shield door has been closed and seal inflated. The operation was performed with no issue.

  153   Wednesday, April 26, 2023, 11:19 Adam NewsomeCyclotronStandard OperationVault Shield Door Closed

The vault shield door has been closed and seal inflated. The operation was performed with no issue.

  119   Wednesday, February 05, 2020, 15:04 Adam NewsomeTrolleyRepairUpper resonator trolley: cylinders for Ex 2C tasks
Cylinder 4 on the upper resonator trolley was not fully functional when removing Ex 2C during 2020 shutdown. It worked occasionally. Upon inspection it was determined that it was binding when extend was attempted. This cylinder was replaced Feb 5, 2020 (model: American Cylinder 562SVS-2.00).
The other three cylinders were inspected and all of their shafts appear significantly bent. Replacement cylinders will be ordered and these will be replaced to prevent further issues.
Edit: all cylinders have been replaced as of Oct 8, 2020

Note: the solenoid valves that control these cylinders are quite dated and are leaky. The layout, plumbing, and wiring could also be improved. One of the cylinders' default position is extended which suggests a wiring/plumbing issue. I will look into replacing these as well, and creating pneumatic circuit documentation.

This e-log will be updated when replacement is completed.
  135   Tuesday, August 31, 2021, 14:28 Adam NewsomeTrolleys servicedDevelopmentUpper Resonator Trolley - Finger Cylinders Replaced

The two support fingers on the upper resonator trolley were bent due to excessive loading during cylinder toggling.

Fingers were bent back into position such that they are vertical when the cylinder is retracted.

The cylinders used to actuate these fingers were replaced (one was leaking) - replacement allowed for the opportunity for upgrade. The following changes were made:

  • Changing reverse spring-return cylinders to double-acting cylinders (formerly American Cylinder 750RVS-2.00, replaced with SMC NCDMB075-0200C)
  • Addition of in-line flow controls for both extension and retraction motions
  • Tuning of flow control to achieve smooth operation and prevent further damage to the fingers during actuation

 The new finger configuration has been tested and is working.

Attachment 1: new_fingers.PNG
new_fingers.PNG
  62   Tuesday, March 17, 2015, 13:04 maicodallavalleCyclotronMaintenanceUpper Bearings Station #5 and #10

The Upper bearings on Station #5 and Station #10 have been serviced. The Upper Bearing were disassembled. The old gear was removed and wiped clean. All parts were inspected.All parts were greased and then reassembled.All Fall Protection Platform railing was collapsed on both stations #5and #10.

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