 Tuesday, May 09, 2017, 12:45, David Wang, Conditioning Station, Repair, TM3, , TM3 service tray side panel is cleaned and installed back to TM3 
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TM3 service tray side panel is cleaned and installed back to TM3 this morning. I visually inspected service tray insulators. Nothing is changed comparing to inspection before.Nine screws are installed on panel to hold it onto TM3. |
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Thursday, July 13, 2017, 10:53, Travis Cave, Conditioning Station, Standard Operation, TM3, no target, Module move
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TM#3 has been moved from the north east silo to the conditioning station. |
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Monday, July 17, 2017, 16:28, Anders Mjos, Conditioning Station, Development, TM3, No target, Conditioning TM3
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50 kV stable with less than 1 spark/h during the weekend by RIB obs.
Today 57 kV reached, but observed sparking on the resistors of the new HV cable. The cable will be removed to take out the resistors, before reinstalling it.
The target hall was locked out, but has now been reopened. This was to avoid sparking to the HV cover. |
 Monday, July 17, 2017, 17:50, Aurelia Laxdal, Conditioning Station, Development, TM3, No target, Conditioning TM3
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| Anders Mjos wrote: |
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50 kV stable with less than 1 spark/h during the weekend by RIB obs.
Today 57 kV reached, but observed sparking on the resistors of the new HV cable. The cable will be removed to take out the resistors, before reinstalling it.
The target hall was locked out, but has now been reopened. This was to avoid sparking to the HV cover.
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EL was brought to 27.5kV. |
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Tuesday, July 18, 2017, 16:53, Anders Mjos, Conditioning Station, Development, TM3, No target, Conditioning TM3
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Conditioning continues today with resistors removed from the HV cable
Tuesday, July 18, 2017, 16:53: BIAS / EZL 50 / 25 kV - no sparks
Tuesday, July 18, 2017, 16:56: BIAS / EZL 55 / 27.5 kV - one spark
TM3 remained at 55 kV over night. Turbo pumps tripped twice and was restarted and HV recovered by RIB ops. Last recovery brought EZL to 16 kV (not 27.5 kV)
About 25 sparks over 15 h. No sparks for the last 3 h
Wednesday, July 19, 2017, 08:12: EZL to 27.5 kV
Wednesday, July 19, 2017, 08:38: BIAS to 57 kV
Wednesday, July 19, 2017, 08:46: BIAS to 57.5 kV
Wednesday, July 19, 2017, 09:05: BIAS to 59 kV
Wednesday, July 19, 2017, 09:19: BIAS to 60 kV
Wednesday, July 19, 2017, 09:28: EZL to 30 kV
Wednesday, July 19, 2017, 12:25: Heavy sparking. Lowered BIAS to 30 kV
Wednesday, July 19, 2017, 12:37: Increased BIAS again towards 50 kV, but heavy sparking again between 45 and 50 kV. Lowered back to 30 kV
Wednesday, July 19, 2017, 12:40: BIAS at 46 kV
Wednesday, July 19, 2017, 12:42: BIAS at 47 kV
Wednesday, July 19, 2017, 12:44: BIAS at 48 kV
Wednesday, July 19, 2017, 12:48: BIAS at 50 kV
Wednesday, July 19, 2017, 14:50: BIAS at 55 kV after ~2h without sparking at 50 kV
Wednesday, July 19, 2017, 15:12: Sparking. Lowered to 40 kV
Wednesday, July 19, 2017, 16:39: BIAS at 55 kV
Friday, July 21, 2017
Observed top of module inside target hall during HV sparks using crane cameras. No sparks observed, but some faint sound could be heard. Module still sparks at 60 and 55 kV. Have to lower to 40 kV to stop sparking.
Friday, July 21, 2017, 13:25: BIAS / EZL at 50 / 25 kV for without sparking for the last 90 min |
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Monday, July 31, 2017, 09:44, Travis Cave, Conditioning Station, Standard Operation, TM3, no target, Module move
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TM#3 has been moved back to the NE silo from the conditioning station. |
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Friday, September 08, 2017, 11:20, Travis Cave, Conditioning Station, Standard Operation, TM3, no target, Module move
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TM#3 has been moved from the north east silo to the conditioning station. |
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Friday, September 08, 2017, 14:08, David Wang, Conditioning Station, Repair, TM3, , TCS and TM3
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TM3 is located at TCS and it is pumping down now. TCS water system has been started. All TCS water lines for TM3 module internal cooling are bypassed and looped at TCS top ground plate. Water only supply to TCS high current conductors. |
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Wednesday, September 13, 2017, 10:05, David Wang, Conditioning Station, Repair, TM3, , Switch off TCS water system and vacuums
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Preparing vent the TCS/TM3. We will remove TM3 service tray cover plate after venting. |
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Wednesday, September 13, 2017, 16:05, David Wang, Conditioning Station, Repair, TM3, , remove Tm3 service tray cover plate
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TM3 service tray cover plate has been removed. It is bagged and placed to TH b2 level south wall beside the silo. |
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Wednesday, September 13, 2017, 16:13, David Wang, Conditioning Station, Repair, TM3, , TCS turbo pumps are started.
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TCS and TM3 all vacuum pumps are started. Everything is fine. |
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Friday, September 15, 2017, 14:12, Travis Cave, Conditioning Station, Standard Operation, TM3, no target, Module move
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TM#3 has been moved back to the silo from the conditioning station. |
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Wednesday, January 17, 2018, 13:54, David Wang, Conditioning Station, Standard Operation, TM3, , Start TM3 turbo pumps at TCS.
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TM3 turbo-pumps are started at TCS. We will keep pumps running until next Wednesday. |
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Monday, January 22, 2018, 07:47, David Wang, Conditioning Station, Standard Operation, TM3, , Restarted TM3 vacuum sysytem after site power bump
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All TCS and TM3 vacuum pumps are started successfully. |
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Friday, September 14, 2018, 09:39, Travis Cave, Conditioning Station, Standard Operation, TM3, no target, Module move
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TM#3 with no target has been moved from the north east silo to the conditioning station. |
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Tuesday, September 25, 2018, 07:54, David Wang, Conditioning Station, Repair, TM3, , TM3 is connected for HV test at TCS.
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water loops are by passed on top. All bias, EE, and EL are tied together. Started water system. |
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Wednesday, September 26, 2018, 07:14, David Wang, Conditioning Station, Repair, TM3, , TM3 HV test at TCS.
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I did a HV test on TM3 at TCS yesterday. HV Ramp up speed: 1KV per 5 minutes when below 30KV,1KV per 10 minutes from 30-36KV. There is no major spark below36 KV . I could see lots small and big vacuum response on IG1 and PNG2 when conditioning from 30-36 KV, especially when closing to 36 KV. However, At 36.4 KV, There is a big continuous spark occurred. It could not be stopped until I lowed the HV to 14KV. I have to ramp up from 14 KV again. This behavior on TM3 HV test is same as before we saw. The module can not pass 36KV at present condition. During the test., EL is tied to 60KV bias. The HV cover on TM3 top is installed. And, Service tray cover plate is installed on TM3. |
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Thursday, September 27, 2018, 13:58, Travis Cave, Conditioning Station, Standard Operation, TM3, no target, Module move
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TM#3 has been moved from the conditioning station to the centre east silo. This will be its new home after the silo switcher-roo. |
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Monday, March 18, 2019, 07:25, David Wang, Conditioning Station, Maintenance, TM3, , TCS vacuum pumps have been stopped.
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The TCS will be vented soon for TM2 move. |
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Thursday, August 29, 2019, 12:54, Adam Newsome, South Hot-Cell, Standard Operation, TM3, , TM3 Move
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TM3 has been moved from the Middle-East silo to the South Hot Cell. |
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