 Monday, November 16, 2015, 10:09, Anders Mjos, Conditioning Station, Standard Operation, TM3, FEBIAD Test Target, Electrical check after HV conditioning 
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Problem found between ANODE (F) and chassis 90 kOhm. See attachment for details. |
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Monday, November 16, 2015, 10:37, David Wang, Conditioning Station, Repair, TM3, , TM3 has been disconnected at TCS.
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I stopped the TM3 and TCS vacuum pumps and water system. The TM3 is disconnected and vented. It will be moved to silo this afternoon. |
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Monday, November 16, 2015, 13:59, Travis Cave, Conditioning Station, Maintenance, TM3, no target, Module moved
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TM#3 has been moved back to the NW silo. |
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Monday, May 09, 2016, 08:43, David Wang, Conditioning Station, Repair, TM3, , I reinstalled all the side panel on TM3 service cap.
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They were moved for TM3 inspection job last week. All the bolts on the panel are hand tight only now since they will be removed out for camera installation during next stage inspection. |
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Tuesday, May 31, 2016, 09:45, Travis Cave, South Hot-Cell, Standard Operation, TM3, no target, module moved
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TM#3 has been moved from the NE Silo to the south hot cell. |
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Thursday, June 02, 2016, 08:44, Travis Cave, South Hot-Cell, Standard Operation, TM3, no target, Electrical Check
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Electrical check of TM#3 no target at the south hot cell. see attached for results. |
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Thursday, June 02, 2016, 11:59, David Wang, South Hot-Cell, Repair, TM3, , 5K mega test on TM3
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I did a 5KV mega test on TM3. Only5Mohm @5kV between coli line PQ and chassis(ground). It confirmed the close gap between P,Q and GE. Other lines are ok. See attachment. |
 Thursday, June 02, 2016, 18:04, Aurelia Laxdal, South Hot-Cell, Repair, TM3, , 5K mega test on TM3
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| David Wang wrote: |
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I did a 5KV mega test on TM3. Only5Mohm @5kV between coli line PQ and chassis(ground). It confirmed the close gap between P,Q and GE. Other lines are ok. See attachment.
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See attachment for sparking signs of the water lines mentioned above (Coil and Ground Electrode lines) in TM3 Source Tray. |
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Friday, June 03, 2016, 11:35, Travis Cave, South Hot-Cell, Standard Operation, TM3, no target, module moved
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TM#3 has been moved back to the north east silo. |
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Friday, June 03, 2016, 16:04, Aurelia Laxdal, South Hot-Cell, Repair, TM3, , 5K mega test on TM3
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| Aurelia Laxdal wrote: |
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| David Wang wrote: |
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I did a 5KV mega test on TM3. Only5Mohm @5kV between coli line PQ and chassis(ground). It confirmed the close gap between P,Q and GE. Other lines are ok. See attachment.
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See attachment for sparking signs of the water lines mentioned above (Coil and Ground Electrode lines) in TM3 Source Tray.
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PLEASE NOTE: the resistance values for A and B on David's attachment are not correct since these measurements were done after Chad removed the target and the heat-shield bracket was moved, so consequently the water lines were not at their nominal locations. Once they were back in plac,e David took another measurement and the resistance values for A and B showed also 3,000 MOhm (as it was for most of the lines). The only lines that still showed a low resistance were the Coil lines. |
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Wednesday, July 13, 2016, 08:47, Travis Cave, Conditioning Station, Standard Operation, TM3, no target, module moved
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TM#3 has been moved from the north east silo to the conditioning station. |
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Monday, July 18, 2016, 13:56, Travis Cave, South Hot-Cell, Standard Operation, TM3, no target, module moved
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TM#3 is now in the south hot cell. |
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Monday, July 18, 2016, 14:14, David Wang, Conditioning Station, Repair, TM3, , TM3 leak checked at TCS
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Last Friday July-15, TM3 was leak checked at TCS. All air to vacuum seals on service cap are good. Helium pressure test on TM3 water lines(except GE, HS, and Window) were done. Leak detector has no response at 0.0xE-9 atm.cc/sec. They are leak free. |
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Tuesday, July 19, 2016, 14:35, Aurelia Laxdal, Conditioning Station, Repair, TM3, , TM3 leak checked at TCS
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| David Wang wrote: |
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Last Friday July-15, TM3 was leak checked at TCS. All air to vacuum seals on service cap are good. Helium pressure test on TM3 water lines(except GE, HS, and Window) were done. Leak detector has no response at 0.0xE-9 atm.cc/sec. They are leak free.
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Friday July 15: did HV tests (with no target installed and with the anode wire removed ). <br>
TM3 went up to 22.5kV. At this voltage it started sparking. The EL was kept at 1/2 with respect to the HV BIAS. <br>
Also HV tests were done while the EL was kept at zero V. In this case, the EL voltage was once in a while spiking up (up to 4kV). <br>
During sparking we saw responses in the vacuum. Checked the Service Cap (with the HV Cover) in the Target Hall: we couldn't hear/see sparks there. <br>
The HV was turned off in the same day, after 5:30pm. |
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Friday, July 22, 2016, 10:57, David Wang, Conditioning Station, Repair, TM3, , TM3 has been moved and connected at TCS
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I started vacuum system.
I started TCS water system. The chiller does not work properly still. But, It will not affect the TM3 HV conditioning. HV cover is installed on TM3 in TH. The module is ready for HV conditioning. |
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Monday, July 25, 2016, 08:15, Anders Mjos, Conditioning Station, Repair, TM3, , HV Test
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Monday, July 25, 2016, 08:14: Enabled staging for chiller
Monday, July 25, 2016, 08:33: Disabled staging. Fault 2. Staging does not work at this point.
Monday, July 25, 2016, 08:34: Running CP1 manually to cool down water.
Monday, July 25, 2016, 09:15: Bias current limiting at 150 V. Investigating short.
Monday, July 25, 2016, 09:51: EE cable was shorting the BIAS on the TCS side.
Monday, July 25, 2016, 09:57: BIAS/ / EL at 20 / 10 kV
Monday, July 25, 2016, 10:08: Sparking at 24 kV. Lowered to 22 kV
Monday, July 25, 2016, 10:44: BIAS at 25 kV
Monday, July 25, 2016, 11:00: Sparking at 25.5 kV. Lowered to 25 kV
Monday, July 25, 2016, 12:03: 25.5 kV. No sparking for 10 min. Lower to 20 kV for lunch break.
Monday, July 25, 2016, 12:51: 26 kV
Monday, July 25, 2016, 13:00: Sparking at 27.3 kV. Lowered to 27 kV. EL at 14 kV
Monday, July 25, 2016, 13:04: More sparking. Lowered to 25 kV
Monday, July 25, 2016, 13:39: 25 kV
Monday, July 25, 2016, 14:21: A spark tripped the PS on water resistivity
Monday, July 25, 2016, 14:31: 25 kV
Monday, July 25, 2016, 15:34: ~20 sparks for the last 60 min
Monday, July 25, 2016, 16:28: ~10 sparks for the last 60 min. BIAS an EL off
Monday, July 25, 2016, 16:36: Stopped water cooling system.
Tuesday, July 26, 2016, 08:20: Started water cooling system.
Tuesday, July 26, 2016, 08:24: Ran CP1 manually for 3 min. Enabled staging.
Tuesday, July 26, 2016, 08:31: BIAS / EL at 25 / 0 kV
Tuesday, July 26, 2016, 08:39: EL float to 300 V. Set to 500 V
Tuesday, July 26, 2016, 08:45: BIAS to 25.5 kV
Tuesday, July 26, 2016, 09:07: 26 kV
Tuesday, July 26, 2016, 09:12: Lost contact with EPICS. Scheduled maintenance
Tuesday, July 26, 2016, 10:26: 6 sparks for the last 60 min
Tuesday, July 26, 2016, 10:33: BIAS to 27 kV
Tuesday, July 26, 2016, 10:43: Sparking at 27.8 kV. Lowered to 23 kV
Tuesday, July 26, 2016, 10:51: BIAS back at 27 kV. A spark tripped the BIAS on water resistivity
Tuesday, July 26, 2016, 11:08: BIAS at 27 kV
Tuesday, July 26, 2016, 11:22: BIAS at 28 kV
Tuesday, July 26, 2016, 11:42: BIAS at 27 kV after trip due to water resistivity (spark)
Tuesday, July 26, 2016, 12:00: BIAS / EL off for lunch break
Tuesday, July 26, 2016, 14:10: EL to 10 kV
Tuesday, July 26, 2016, 14:14: El to 20 kV
Tuesday, July 26, 2016, 14:20: EL to 25 kV
Tuesday, July 26, 2016, 14:27: First spark at 27.6 kV
Tuesday, July 26, 2016, 14:29: EL to 28 kV (BIAS at 0 kV)
Tuesday, July 26, 2016, 14:43: RGA on
Tuesday, July 26, 2016, 14:49: No sparking for 20 min
Tuesday, July 26, 2016, 16:02: No sparks for 90 min.
Tuesday, July 26, 2016, 16:06: PS and water off.
Wednesday, July 27, 2016, 09:14: BIAS at 24 kV
Wednesday, July 27, 2016, 09:19: Lowered to 20 kV due to sparking
Wednesday, July 27, 2016, 09:28: BIAS at 22 kV
Wednesday, July 27, 2016, 15:30: BIAS and water off
Thursday, July 28, 2016, 08:43: RGA off |
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Thursday, July 28, 2016, 11:27, Travis Cave, Conditioning Station, Standard Operation, TM3, no target, module moved
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TM#3 with no target has been moved from the conditioning station to the NE silo. |
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Wednesday, August 10, 2016, 09:44, Travis Cave, Conditioning Station, Standard Operation, TM3, no target, module moved
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TM#3 has been moved from the north east silo to the conditioning station. |
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Thursday, August 11, 2016, 10:37, David Wang, Conditioning Station, Repair, TM3, , TM3 service tray cover plate ITA2108 has been removed.
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Requested by Aurelia, and approved by Friedhelm, TM3 service tray cover plate ITA2108 has been remove out of the module. The plated is checked for active and contamination after removal. Then,It is double bagged, sealed , tagged, and placed downstairs in TH between south wall and green block . The ram contact reading on the plate is about 10 usv/hr. We will do anther TM3 HV test at TCS without this cover plate. |
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Friday, August 12, 2016, 10:59, Anders Mjos, Conditioning Station, Development, TM3, , HV Test with Service Chase Panel removed
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Water cooling is performed manually with CP1. RGA is ON since yesterday. EE is not connected and in conditioning mode.
Friday, August 12, 2016, 10:43: BIAS at 10 kV, EL at 0.5 kV. IG1 at 1.8E-6 T
Friday, August 12, 2016, 11:04: BIAS at 20 kV
Friday, August 12, 2016, 11:10: Sparking at 21 kV
Friday, August 12, 2016, 11:29: BIAS at 22 kV. Many small sparks/current excursions.
Friday, August 12, 2016, 11:32 : BIAS at 23 kV
Friday, August 12, 2016, 11:37: BIAS at 24 kV
Friday, August 12, 2016, 11:43: BIAS at 25 kV. Heavy sparking. Lowered to 24 kV to reduce spark rate.
Friday, August 12, 2016, 11:52: Increased sparking rate. Lowered to 23 kV.
Friday, August 12, 2016, 12:05: Lowered to 20 kV
Friday, August 12, 2016, 12:21: Back to 23 kV
Friday, August 12, 2016, 12:28: Heavy sparking between 23 and 24 kV. Lowered to 22 kV
Friday, August 12, 2016, 12:29: More sparking. Lowered to 21 kV.
Friday, August 12, 2016, 13:02: Increased back up to ~25 kV while Aurelia was listening for sparks in the Target Hall.
Friday, August 12, 2016, 13:03: EL to 10 kV
Friday, August 12, 2016, 13:06: BIAS / EL to 23 / 12.5 kV
Friday, August 12, 2016, 13:34: Repeated sparking at 24.5 kV. Ramping down
Friday, August 12, 2016, 15:33: Stopped water package. RGA off |
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