ID |
Date |
Author |
Category |
Type |
Subject |
21
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Monday, March 18, 2013, 15:12 |
Isaac Earle | Cyclotron | Maintenance | Cyclotron Magnet Face Gap Measurements |
Measurements of the cyclotron magnet face gap were taken on March 15, 2013 at two locations around the tank with the cyclotron lid in the fully raised position (the lid had been raised until the upper limit switches caused the control system to stop travelling). The purpose of the measurements is to establish an independent means of verifying correct lid height before beginning in-tank remote handling activities at the start of a shutdown period.
The height of the lid at the time of measurement was confirmed to be adequate for the bridge to perform a full orbit without any interference between the bridge or cable tray and devices on the lid.
Measurement locations were labelled using permanent marker. A plumb-bob was used to ensure the measurement location on the upper and lower faces were aligned vertically. The measurements were performed using a tape measure hung from the upper magnet face and read at the lower magnet face as shown.
Location #1: RH bridge entry/exit point (~50° position), Measured gap: 46-1/2" +/- 1/16"
Location #2: East side of jack station #1 (~215° position), Measured gap: 46-9/16" +/- 1/16"
Photographs of the upper limit switches on jack stations #1 and #10 were taken as shown below:
At this lid height, the reference stick on the top of the cyclotron lid was found to be touching the concrete ceiling, but was not bowed. See photo below.
The distance between the cyclotron tank lid and the RH bridge was then measured using a meter stick attached to the lift trolley. The trolley was moved into the tank, and the stick raised until it contacted the tank lid. This position was recorded, the stick was lowered, the trolley was removed from the tank, then the stick raised again to the recorded position. A piece of aluminum angle was used to translate the measurement from the center of the trolley to the edge of the bridge as shown below:
Total Distance from RH Bridge Rail to Cyclotron Tank Lid: 15-7/16" + 6-5/16" = 21-3/4" +/- 1/8"
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29
|
Friday, January 24, 2014, 14:10 |
Travis Cave | Cyclotron | Standard Operation | Copper blockers |
The copper blockers have been removed from the cyclotron and placed into the coffins. |
32
|
Wednesday, January 29, 2014, 15:08 |
Bevan Moss | Cyclotron | Standard Operation | Shielding and Port Hole Covers |
The Shielding and the Port Hole Covers have all been installed. No issues with the installation have caused any problems. This orbit, radial, and vertical read back continues to be an issue. |
33
|
Thursday, January 30, 2014, 13:47 |
Travis Cave | Cyclotron | Standard Operation | shields |
All shields, pothole covers, and ladders have been installed into the cyclotron. |
34
|
Friday, January 31, 2014, 10:07 |
Travis Cave | Cyclotron | Standard Operation | 2C removal |
2C has been successfully removed from the cyclotron and is now currently sitting in the B2 level of the RH building. A tank access was needed to feel the stuck QDL. |
35
|
Friday, February 07, 2014, 10:50 |
Travis Cave | Cyclotron | Standard Operation | 2C install |
2C has been installed into the cyclotron. |
36
|
Friday, February 21, 2014, 11:05 |
Bevan Moss | Cyclotron | Standard Operation | Old Monitor Box Removed, New installed |
One of the beam spill monitor boxes was removed and placed into a lead coffin. The fields around the coffin prior to the monitor being placed in were 145 uSv/hr just above the box and 33.5 uSv/hr inside of it. A swipe was taken inside the box at this time and a count of zero was found. The tray for the monitor box was then placed into the coffin and the monitor removed from the cyclotrons. The field above the coffin with the monitor box was 1.0 Sv/hr. Safety hinted that it may be possible to put this in the decay storage tunnel. The copper block was then returned to the coffin. The fields above the the coffin were now 9 Sv/hr. The lid was returned to the coffin and returned to it storage place. The new monitor box was then installed into the Cyclotron. The box only hung up on the pins once and there was some slight difficulties unlatching. From previous experience once fully unlatched a slight tap in the latch direction seems to allow it to release easier. Overall the installation was considered very smooth. |
Attachment 1: IMG_1346.JPG
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Attachment 2: IMG_1345.JPG
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Attachment 3: IMG_1344.JPG
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Attachment 4: IMG_1343.JPG
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Attachment 5: IMG_1342.JPG
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Attachment 6: IMG_1341.JPG
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Attachment 7: IMG_1339.JPG
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37
|
Friday, February 21, 2014, 15:58 |
Bevan Moss | Cyclotron | Standard Operation | Old Monitor Box Removed, New installed |
During the electrical test the was no contact. To help investigate further the Montitor box was removed from the Cyclotron. It was found to have zero counts. The issue is believed to have to do with the fit of the box but confirmation of the writing harness continuity needs to be completed. This will continue on Monday.
Bevan Moss wrote: |
One of the beam spill monitor boxes was removed and placed into a lead coffin. The fields around the coffin prior to the monitor being placed in were 145 uSv/hr just above the box and 33.5 uSv/hr inside of it. A swipe was taken inside the box at this time and a count of zero was found. The tray for the monitor box was then placed into the coffin and the monitor removed from the cyclotrons. The field above the coffin with the monitor box was 1.0 Sv/hr. Safety hinted that it may be possible to put this in the decay storage tunnel. The copper block was then returned to the coffin. The fields above the the coffin were now 9 Sv/hr. The lid was returned to the coffin and returned to it storage place. The new monitor box was then installed into the Cyclotron. The box only hung up on the pins once and there was some slight difficulties unlatching. From previous experience once fully unlatched a slight tap in the latch direction seems to allow it to release easier. Overall the installation was considered very smooth.
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40
|
Monday, March 03, 2014, 13:09 |
Travis Cave | Cyclotron | Standard Operation | shields |
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. |
50
|
Tuesday, January 27, 2015, 14:40 |
Travis Cave | Cyclotron | Standard Operation | Day one of in tank work |
Day one of RH in tank work for the cyclotron (shields and blockers stuff like that) many pictures were taken. |
51
|
Wednesday, January 28, 2015, 14:33 |
Travis Cave | Cyclotron | Standard Operation | Day two of in tank work |
All copper blocker removed from the cyclotron and first radiation survey done. Shields start tomorrow. |
52
|
Thursday, January 29, 2015, 14:53 |
Travis Cave | Cyclotron | Standard Operation | Day three of in tank work |
Over 50% of the shields are in some 700's left and the monitor box covers. |
53
|
Friday, January 30, 2015, 15:02 |
Travis Cave | Cyclotron | Standard Operation | Day four of in tank work |
All shields, ladders and pothole covers are in. One rad survey left to do. |
54
|
Monday, February 02, 2015, 14:28 |
Travis Cave | Cyclotron | Standard Operation | Day five of in tank work |
Final Radiation Survey done. All in tank work completed bridge removed from the tank. |
55
|
Wednesday, February 04, 2015, 13:57 |
Travis Cave | Cyclotron | Standard Operation | 2C removal |
2C has been removed from the cyclotron. |
57
|
Tuesday, February 17, 2015, 11:28 |
Travis Cave | Cyclotron | Standard Operation | 2C Installation |
2C extraction probe has been re-installed in the cyclotron. After some problems on the first install attempt, do to a busted micro-switch that was causing the 24 Volt DC system to short out. |
58
|
Friday, March 06, 2015, 14:38 |
Travis Cave | Cyclotron | Standard Operation | Shield Removal |
All shields and ladders have been removed from the tank, all the port holes have been uncovered, the tank seal has been vacuumed, and the copper blockers installed into the cyclotron. |
62
|
Tuesday, March 17, 2015, 13:04 |
maicodallavalle | Cyclotron | Maintenance | Upper 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. |
65
|
Friday, March 27, 2015, 07:31 |
Dan McDonald | Cyclotron | Repair | Lid up operations |
Lid up recap for March 26th 2015.
Start time 14:50 Master- 33 Finish 15:25 Master -47413 Zero jogs to system.
- 1- 36 47386
- 2-38 47378
- 3-33 47374
- 4-36 47382
- 5-36 47394
- 6-36 47385
- 7-37 47398
- 8-33 47373
- 9-38 47395
- 10-38 47395
- 11-38 47395
- 12-36 47393
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66
|
Friday, March 27, 2015, 11:25 |
Travis Cave | Cyclotron | Standard Operation | Copper Blockers |
Copper Blockers have been removed from the cyclotron and one ladder has been installed. |