 Monday, October 21, 2013, 12:29, Bevan Moss, Conditioning Station, Repair, TM4, , BIAS Canbus
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There is something wrong with the BIAS canbus controller. It says that it is not alive and has timed out. I have tried unplugging it and plugging
it back in but that has not resolved the problem as it normally does. I have contacted Dave Morris and am waiting to hear from him. I cannot HV test without
this controller. |
Tuesday, October 22, 2013, 17:04, Bevan Moss, Conditioning Station, Standard Operation, TM4, , HV testing 
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This afternoon TM4 with the coil removed was tested with HV. The EINZEL LENS was first tested independently while the bias canbus was being repaired.
The current on the EL looked stable at 25kV for 5 minutes. At 27.5kV the current becomes unstable and occasionally sparks. This voltage was held for 30
minutes but the current did not appear to be becoming more stable. Further extended testing would be required to determine if this can be conditioned out. |
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Thursday, October 24, 2013, 11:32, Travis Cave, South Hot-Cell, Standard Operation, TM4, no target, module move
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| TM#4 with no target has been moved from the conditioning station to the south hot cell. |
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Thursday, October 24, 2013, 15:43, Anders Mjos, South Hot-Cell, Standard Operation, TM4, Ta#41, Target conductance
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The conductance check on the electrical check was found to be outside of accepted values for the TBHT at 7.0 mOhm. A successful attempt to reduce the
conductance was made by re-tightening the bolts on the TGHT legs in the SHC. Grant operated the manipulator and torqued the bolts to about 1/8 of a turn
with the air ratchet. The conductance across the TGHT (A-B) could be improved from 7.0 mOhm to 6.2 mOhm by re-tightening the bolts. The value is still |
 Thursday, October 24, 2013, 15:54, Grant Minor, South Hot-Cell, Standard Operation, TM4, Ta#41, Target conductance
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Anders Mjos wrote:
The conductance check on the electrical check was found to be outside of accepted values for the TBHT |
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Friday, October 25, 2013, 06:58, David Wang, South Hot-Cell, Standard Operation, TM4, , Leak check on TM4 target heat shield
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Maico and I leak checked HS circuit after Chad installed the target. The circuit was a little bit difficult o pump down because of residue water moister
inside. But once the moisture was pumped out, the pumping down was smooth and fast. The base leak rate 0.0xE-9 atm.cc/sec, base pressure 0.0xE-4 torr.
Maico checked helium flow before the leak test. Then,He sprayed helium to all 3 VCR fiitings on target with 2 seconds on each one, He also flushed 10 seconds |
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Friday, October 25, 2013, 10:26, Travis Cave, ITW, Standard Operation, TM4, Ta#41, module move
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| TM#4 with Ta#41 has been moved from the south hot cell to the west target station. |
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Friday, October 25, 2013, 14:09, Travis Cave, South Hot-Cell, Standard Operation, TM4, Ta#41, Target conductance
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Anders Mjos wrote:
The conductance check on the electrical check was found to be outside of accepted values for the TBHT |
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Thursday, October 31, 2013, 10:36, David Wang, ITW, Standard Operation, TM4, , I moved 5 shielding blocks from ITE to ITW.
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| I moved 5 shielding blocks from ITW to ITE. The ITW is configured to take proton beam. |
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Tuesday, December 03, 2013, 09:58, David Wang, ITW, Standard Operation, TM4, , I moved 5 shielding blocks from ITW to block storage area.
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| I moved 5 shielding blocks from ITW to block storage area. |
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Wednesday, December 04, 2013, 10:44, Travis Cave, South Hot-Cell, Standard Operation, TM4, Ta#41, module move
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TM#4 with Ta#41 has moved to the south hot cell, the move it self was uneventful but, the fields on the module are extremely high when lowering it down
into the south hot cell the module had a maximum field of about 392mSv/hr. The shield plug was also installed remotely as well due to the 12mSv/hr field
at the top of the west target station due to shine from the dump. |
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Wednesday, December 04, 2013, 11:05, David Wang, ITW, Standard Operation, TM4, Ta41#, I disconnected TM4 in ITW
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| I disconnected TM4 in ITW .The job took about 20minutes and I got 0.11 msv dose. |
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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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Wednesday, December 04, 2013, 13:57, chad fisher, South Hot-Cell, Standard Operation, TM4, Ta #47, Ta #47 Removed - broken bolt
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Ta #47 has been removed from TM4.
One containment box cover bolt would not come out. Upon attempted removal with the stud remover the bolt sheared...which is not uncommon...just
hasn't happened in many years...CBB being stuck or shearing. |
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Wednesday, December 04, 2013, 14:09, Travis Cave, South Hot-Cell, Standard Operation, TM4, Ta#41, Electrical check
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| Electrical check of TM#4 with Ta#41 post beam at the south hot cell. See PDF for details |
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Thursday, December 05, 2013, 12:04, Travis Cave, ITE, Standard Operation, TM4, UC#8, module move
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| TM#4 with UC#8 has been moved from the south hot cell to the east target station. |
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Thursday, December 05, 2013, 12:51, Travis Cave, South Hot-Cell, Standard Operation, TM4, UC#8 and no target, Electrical check
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| Electrical check was done on TM#4 without a target and with the UC#8 target on see attached PDF for results. |
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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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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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