 Tuesday, December 03, 2013, 10:35, Travis Cave, ITW, Standard Operation, , , fields above and in the target station with blocks off
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The blocks have been removed from the west target station. The fields at the top of the target pit at the railing at waist level is about 80uSv/hr, Turbo
pumps are about 805uSv/hr, backing lines for the turbos about a 1mSv/hr and the average field in the area of work down in the pit is about 600 to 750uSv/hr.
The proton beam went off at 10:45 on December 2nd, these measurements were done at 09:00 on December 3rd. |
Tuesday, December 03, 2013, 14:14, Bevan Moss, Conditioning Station, Standard Operation, TM2, , HV conditioning 
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It was attempted to HV condition TM2 to 55kV and leave it operating there for an hour to demonstrate stability. Unfortunately at 52.65kV a spark
destroyed the canbus controller. This controller had shown issues in the past but seemed to magically fixed itself. I will contact Hubert for another card.
Attached is is a screen shot of the stip tools. |
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Wednesday, December 04, 2013, 11:15, David Wang, ITE, Repair, TM4, , New bolts are installed on ITE TP3.
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I installed 8 new bolts(3/8-16 UNC x1.25 STL) on the ITE TP3. The ITE TP3 replacement job is done. Everything is connected back to the pump. and
it is ready for starting. |
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Thursday, December 05, 2013, 14:55, David Wang, South Hot-Cell, Standard Operation, TM4, , Leak check on TM4 target heat shield
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Chad and I leak checked TM4 heat shied water circuit at SHC. The pumping down was very good.Base leak rate 0.0xe-9 atm.cc/sec. BP 0.0xe-4torr. Sprayed
helum twice on both VCR fittings.There is no response on leak detector. The circuit is leak tight. |
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Thursday, December 05, 2013, 14:57, David Wang, ITE, Standard Operation, TM4, , Connected TM4 in ITW
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| I connected TM4 in ITE. All turbo pumps have been started and wok fine including new TP3. Everything is good so far. |
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Friday, December 06, 2013, 15:09, Bevan Moss, Conditioning Station, Standard Operation, TM2, , TM2 no source tray 55kV 1 hour
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Today 55kV was applied to TM2 and held for over 1 hour with the EINZEL at 27.5kV. There were 2 sparks and the current was unstable at this voltage but
this test should be considered a success. Once again while bringing the voltage up the canbus continued to be a problem. After successfully passing the
test I continued to raise the BIAS and EINZEL. A spark at 57kV tripped a controller for the vacuum and the canbus. As stated before I believe the module |
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Monday, December 09, 2013, 14:47, David Wang, ITE, Standard Operation, TM4, , I moved 5 shielding blocks from block storage area to ITE.
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| I moved 5 shielding blocks to ITE. The ITE is configured to take proton beam. |
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Thursday, December 12, 2013, 11:14, Bevan Moss, Conditioning Station, Standard Operation, TM2, , HV Chase Electrical Test
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While under vacuum Travis and I completed diagnostics of the HV chase. Majority of the lines showed OL at 1kV but there were the following "failures"
A to P @ 250V 716kOhm
A to Q @ 1kV 25.18MOhm |
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Thursday, January 09, 2014, 11:07, chad fisher, South Hot-Cell, Maintenance, , , Field Level
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| I have managed to reduce the field at the broken manipulator from 12 mSv/h to 400 uSv/h. |
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Thursday, January 16, 2014, 10:36, chad fisher, South Hot-Cell, Repair, , , East Manipulator Repair
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The repair/cable replacement on the east manipulator is now complete.
Yesterday's initail cable replacement went very well however, due to a minor glich, we were unable to test the tong movement until I was out of
the hot cell. Tong did not fully close and felt like there was a "hard stop" at a repeatable spot in the closing of the tong. Upon further |
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Monday, January 20, 2014, 13:35, David Wang, ITE, Standard Operation, TM4, , 5 shielding blocks had been moved out of ITE
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| 5 SHIELDING BLOCKS HAD BEEN MOVED OUT OF ITE.AIR SAMPLE AND SWIPED FIRST BLOCK AND ITE PIT.NOTHING HAD BEEN FOUND ON ALPHA MONITOR AND OTHER TWO MONITORS. |
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Monday, January 20, 2014, 13:38, David Wang, ITE, Standard Operation, TM4, , DISCONNECTED TM4 IN ITE.
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| I DISCONNECTED TM4 IN ITE. ALL WATER LINES HAD BEEN PURGED OUT WITH PRESSURE AIR. |
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Wednesday, January 22, 2014, 10:51, David Wang, ITE, Repair, , , Removed 4 shielding blocks located on top of preseperator in TH
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Travis and I removed 4 shielding blocks located on top of pre-seperator in TH. This is a job for ITE harp 9 re-installation after it is repaired
. The blocks move are successful. |
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Monday, February 03, 2014, 14:45, Travis Cave, Spent Target Vault, Standard Operation, , , Spent targets to mini storage and the F-308s to the Target Hall
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Targets NiO#1(101), Nb#5(85), TaC#1(92), and ZrC#5(81) have been moved from the storage vault and placed in the mini storage. The F-308 flasks have also
been moved in to the target hall as well. The attached are the current statuses of both vaults. |
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Tuesday, February 04, 2014, 08:04, David Wang, South Hot-Cell, Repair, TM2, , Leak check TM2 tube heater (+) water line.
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Chad and I leak checked TM2 tube heater(+) water line yesterday afternoon. The water line was difficult to pump down on base leak rate, but LD
base pressure was fine . The base pressure on leak detector was pumped to 0.0XE-4 torr quickly. The base leak rate only could be pumped to
4.5 xE-8 atm.cc/sec after 1 hour waiting time. All vacuum connections to leak detector in the target hall were leak checked and they were good. Chad |
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Tuesday, February 04, 2014, 09:42, David Wang, South Hot-Cell, Repair, TM2, , pressure test on TM2 tube heater +(D) water line. 10x
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Chad and I did a pressure test on TM2 tube Heater+(D) water line.I pressurized the D line with shop air from quick connectors(both ends) on service cap.chad
applied bubble soap onto the D water block in SHC. The test started from 5psi,and increased 5psi each time to 40 psi. From 5 to 35 psi, no bubble has been
found on water block. At 40 psi , bubble appeared from blind blank off seal , but not from soldering joints. Since the o-ring seal for the blank off is |
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Wednesday, February 05, 2014, 14:05, David Wang, South Hot-Cell, Repair, TM2, , Leak check TM2 tube heater (+) water line from inside service cap in TH.
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Bevan and I did a leak check on TM2 tube heater+ from inside service cap in TH. The leak detector base leak rate 0.0xE-9 atm.cc/sec, base pressure
0.0xE-4totrr. One of side panel on service cap was opened. Bevan sprayed the helium to the "D" line inside the blue insulator.The helium flow
was checked , and he sprayed twice. No response has been found on leak detector. See attachment pictures |
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Wednesday, February 05, 2014, 14:12, Travis Cave, Spent Target Vault, Standard Operation, , , Targets moved from mini storage to F-308s
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| All targets in the mini storage (4) have been moved from there and placed into the F-308s and those have been moved to the mech services room. |
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Friday, February 07, 2014, 10:29, chad fisher, South Hot-Cell, Repair, TM2, , TM2 C.B. and circuit D
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| Containment box has been removed and the blank off from circuit D has been removed for inspection of both the blank off and water block sealing surface. |
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Tuesday, February 11, 2014, 13:56, chad fisher, South Hot-Cell, Repair, TM2, , waterblock cleaning
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New cleaning and polishing pads have been inserted onto the hot cell as well as rubber bungs and a new blank off.
The inital waterblock cleaning with the "scotch bright" pads has been completed. See attached pictures...the first picture being before
and the second after. |
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