 Tuesday, December 19, 2017, 10:41, Anders Mjos, Crane, Maintenance, , , Crane powered down
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| The target hall crane has been powered down by Don today in preparation for the power shutdown over the Holidays. |
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Tuesday, December 19, 2017, 10:40, Don Jackson, Crane, Maintenance, , , Crane Power during winter break
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The power to the crane and controls were turned off using the power switch in the Crane Control room. The main disconnect switch in the target
hall was not touched.
All site power will be off for a period of time during the Christmas break and this removes the crane from any issues when power is restored. |
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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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Wednesday, December 06, 2017, 09:33, Anders Mjos, Conditioning Station, Maintenance, , , Running chiller for maintenance tech
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| Dakine is on site to do maintenance on the chiller. The tech requested the chiller to operate. |
Friday, December 01, 2017, 16:42, Isaac Earle, North Hot-Cell, Repair, , , NHC manipulator service visit 
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Pete Dudley, manipulator service technician from CRL, was on site from Nov 27-30 to service the NHC Model N manipulators (See E-log entry #1578 for background).
He began by evaluating the motion selection and electric drive of the manipulator installed on the blue service cart. This manipulator had
chip A0166R01, same as the right side manipulator which had the failure described in E-Log 1578. Pete noted that the arm was very slow to switch |
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Wednesday, November 15, 2017, 08:55, David Wang, Conditioning Station, Standard Operation, , , Install shield plug onto TCS and pumping down TCS.
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| Shielding plug is installed onto TCS. TCS is being pumped down to keep it under vacuum for the rest of the year. |
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Tuesday, November 14, 2017, 14:34, David Wang, ITW, Standard Operation, TM2, Ta#55, TM2 has been connected in ITW.
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| TM2 has been connected in ITW. All turbo-pumps are started. Everything works fine. |
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Tuesday, November 14, 2017, 10:01, Travis Cave, ITW, Standard Operation, TM2, Ta#55, Module move
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TM#2 with Ta#55 has been moved from the conditioning station to the west target station. The field was measured on the access panel to the service
chase and the field was found to be 430uSv/hr at one meter from the module. |
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Monday, November 13, 2017, 13:50, Travis Cave, Spent Target Vault, Standard Operation, , Ta#54, Spent Target Move
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The spent Ta#54 target has been moved from the south hot cell to the spent target vault. It was placed in Pail #157 and put in spot #5B of the
vault. |
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Monday, November 13, 2017, 13:39, Travis Cave, South Hot-Cell, Standard Operation, TM2, Ta#54 and #55, Electrical Check
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The results of the various electrical check done on the target module on November 7th and 8th of 2017. Checks were done with the old Ta#54 target
without a target and finally with the new Ta#55 target. See the attached PDF for results. |
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Thursday, November 09, 2017, 10:39, Anders Mjos, Conditioning Station, Standard Operation, TM2, Ta#55, Conditioning Ta#55
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Thursday, November 09, 2017, 10:40: BIAS / EL to 30 / 15 kV. 400 uA on BIAS
Bias was stable for 1 hour. Handed over to RIB ops for heater conditioning. |
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Thursday, November 09, 2017, 09:35, David Wang, Conditioning Station, Standard Operation, TM2, Ta#55, TM2 has been connected at TCS
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| TCS vacuum system and water system have been started as well. Everything looks fine. |
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Thursday, November 09, 2017, 09:34, David Wang, Conditioning Station, Standard Operation, TM2, Ta#55, Leak check on TM2 HS line at SHC and TCS.
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The TM2 HS line was leak checked at SHC yesterday . 0.9xE-9 atm.cc/sec.Helium sprayed by Chad, NO leak. It was helium pressurized at TCS this morning.
Leak rat:2.5 XE-7 atm.c/sec. The result is same as last time check. No concern. |
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Thursday, November 09, 2017, 08:46, Anders Mjos, Conditioning Station, Repair, , , Communication fiber replaced for HV PLC
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| After extensive troubleshooting the communication fiber was found to be damaged and has been replaced by Gelo. |
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Tuesday, November 07, 2017, 10:11, Travis Cave, South Hot-Cell, Standard Operation, TM2, Ta#54, Module move
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| TM#2 with Ta#54 has been moved from the west target station to the south hot cell. |
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Thursday, October 26, 2017, 13:20, Travis Cave, Spent Target Vault, Standard Operation, , SiC#30,ZrC#7,Ta#44,TiC#4, and Ta#41, Targets moved to mini storage
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SiC#30,ZrC#7,Ta#44,TiC#4, and Ta#41 have been moved from the spent target storage to the mini storage. See attached PDF for details of the orders of
the pails in the mini vault. |
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Thursday, October 26, 2017, 09:56, Anders Mjos, ITE, Repair, TM4, SiC#37, Leak on multi pin connector feedthrough
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On maintenance day Tuesday, the roughing of the target station could not go below 1.5 Torr. A brief troubleshooting on Tuesday was unsuccessful in determining
the cause. Leak checking continued on Wednesday by David and Anders. A leak was finally found on the multi pin connector feedthrough due to the seal between
the connector and flange on top of the nylon insulator. Upon re-tightening the connector, the leak could be stopped and the module pumped down to allow |
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Tuesday, October 24, 2017, 11:58, Travis Cave, ITE, Standard Operation, TM4, SiC#37, Module move
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TM#4 with SiC#37 has been moved from the conditioning station to the east target station. A measurement was taken on TM#4 as it was being removed
from the conditioning station, the location was on the side of the service tray access panel approx one metre away and the cover fully exposed, the reading
was 750uSV/hr. |
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Monday, October 23, 2017, 13:38, Travis Cave, Spent Target Vault, Standard Operation, , UC#21, Spent Target move
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| The spent UC#21 has been moved from the south hot cell to the spent target vault. See attached for details |
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Thursday, October 19, 2017, 14:20, Anders Mjos, Conditioning Station, Standard Operation, TM4, SiC#37, SiC#37 Conditioning
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Thursday, October 19, 2017, 14:20: EE configured for conditioning. HV cage locked up
Thursday, October 19, 2017, 16:46: BIAS / EL / EE at 45 / 22.5 / 0 kV
Thursday, October 19, 2017, 17:16: 30 min without sparking. Lowering to 0. Continue conditioning tomorrow. |
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