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.

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

Weekly update target hall schedule. Everything on schedule are finished  on time.   See attachment.  

The TCS is venting now. The TM3 blue insulator replacement job will be started soon.

Anders Mjos wrote:

Anders Mjos wrote: Plant Services group (Tony) will contact a service tech on Monday. Water system will be switched off over the weekend. Thursday, July 14, 2016, 13:24: Claus from Daikin is on site to troubleshoot. The VFD driven fan motor has failed. Temporarily blocked air-flow through failed fan to improve air-flow to radiator. A new motor will be ordered (Curtis). Thursday, July 14, 2016, 15:39: Stopped cooling system for the day Friday, July 15, 2016, 08:16: Cooling system started Friday, July 15, 2016, 15:00; Cooling system stopped.

 Thursday, August 18, 2016, 10:34: The motor was replaced today by Claus from Daikin. System is running normally again.

TM#3 is now back in the the north east silo.

Start of roughing now.

Wednesday, August 24, 2016, 14:42: RGA on

Wednesday, August 24, 2016, 20:27: IG2 and IG1S on. Checked on water system.

Conditioning by ISAC operations. Water flow tripped power supplies after a few hours of conditioning at 580 / 230 A and 30 kV. See operations e-log for details.

I did a helium pressure test on TM2 HS water line at TCS. Leak detector base leak rate only could get to 1.8x e-8 atm.cc/sec at this moment. Applied 5 minutes 70psi helium on it. No leak has been found at this level. I connected water to this circuit after the test for weekend TM2 conditioning at TCS.

I will do another helium pressure test after the conditioning. The LD base leak rate should be 0.0Xe-9 atm.cc/sec at that time.

2016-08-29: LD Base leak rate 0.0xe-9atm.cc/sec.TM2 HS line helium pressure check again after conditioning. 70psi helium 5minutes. no response on LD. HS line is perfectly sealed.

The HV cover is installed. The Faraday cage at B2 level is locked also.The TCS and TM2 are still pumping down. Everything is good so far.

Weekly update schedule.  See attachment 1,2.

I stopped TCS water pumps and vacuum pumps also.   TM2 and TCS will be vented tomorrow morning.

TM#3 has been moved from the NE Silo to the conditioning station.

All TM3 blue insulators except Gas,EL, and 60 KV common  on top of the module have been replaced with new designed insulators. The new blue insulator for gas line need to be modified to fit for the bent on the gas  line.   EL, and 60KV common blue insulators were replaced during last time TM3 refurbishment so they are relative new, and  not replaced this time. All seals related to the blue insulators are changed to new seals. The o- r-ing surfaces  for o-ring 221 inside the  new insulators  are rougher than old parts. The module top need to be leak checked.

start of roughing now.

 start of TCS and TM3 turbo-pumps. Everything is good so far.

After blue insulators replacement, TM3 service cap are leak checked. LD base leak rate 0.0xe-9 atm.cc/sec. I sprayed lots helium on all blue insulator seals. No leak has been found. Double checked them again, and got same result. All other seals on top of TM3 also have been checked. They are leak free. OVEN, TUBE, MSP, COIL, and EE water lines are pressurized with 70 psi helium for 3minutes each. They are good also.

Tuesday, September 12, 2016, 10:00: RGA on

Tuesday, September 13, 2016, 13:52: Source on

Tuesday, September 13, 2016, 13:55: BIAS / EL at 10 / 5 kV

Tuesday, September 13, 2016, 13:59: BIAS / EL at 18 / 9 kV

Tuesday, September 13, 2016, 14:06: BIAS / EL at 20 / 10 kV. Minor sparking

Tuesday, September 13, 2016, 14:25: Sparking at about 1 spark/min for the last 10 min

Tuesday, September 13, 2016, 15:38: ~10 sparks for the last 60 min.

Tuesday, September 13, 2016, 15:41: BIAS / EL 22 / 11 kV

Tuesday, September 13, 2016, 15:57: Heavy sparking at 24 kV. Lowered to 21 kV. EL at 12.5 kV

Tuesday, September 13, 2016, 16:00: BIAS / EL at 22 / 12.5 kV

Tuesday, September 13, 2016, 16:05: Trip on resistivity caused by spark

Tuesday, September 13, 2016, 16:07: BIAS / EL at 10 / 5 kV

Tuesday, September 13, 2016, 16:14: BIAS / EL at 20 / 10 kV

Tuesday, September 13, 2016, 16:25: BIAS / EL at 22 / 11 kV

Tuesday, September 13, 2016, 17:00: Sparking at about 1 spark/min for the last 30 min

Tuesday, September 13, 2016, 17:02: Source off.

Wednesday, September 14, 2016, 08:22: BIAS / EL at 20 / 10 kV

Wednesday, September 14, 2016, 08:33: BIAS / EL at 22 / 11 kV

Wednesday, September 14, 2016, 08:35: Trip on resistivity caused by spark

Wednesday, September 14, 2016, 08:38: BIAS / EL at 20 / 10 kV

Wednesday, September 14, 2016, 08:41: BIAS / EL at 21.5 / 11 kV

Wednesday, September 14, 2016, 08:45: BIAS / EL at 22 / 11 kV

Wednesday, September 14, 2016, 09:06: Sparking at about 1 spark/min for the last 20 min

Wednesday, September 14, 2016, 10:17: Sparking rate somewhat reduced. BIAS / EL at 23 / 11 kV

Wednesday, September 14, 2016, 10:23: BIAS / EL at 24 / 12 kV

Wednesday, September 14, 2016, 10:31: BIAS / EL at 25 / 12 kV.

Wednesday, September 14, 2016, 10:32: Trip on resistivity caused by spark

Wednesday, September 14, 2016, 10:36: BIAS / EL at 20 / 10 kV

Wednesday, September 14, 2016, 10:40: BIAS / EL at 23 / 12 kV

Wednesday, September 14, 2016, 10:51: BIAS / EL at 24 / 12 kV

Wednesday, September 14, 2016, 10:57: BIAS / EL at 25 / 12 kV

Wednesday, September 14, 2016, 11:01: Heavy sparking at 25 kV (>15 /min). Trip on resistivity caused by spark

Wednesday, September 14, 2016, 11:10: RGA off.

 TM3 is disconnected at TCS and ready to be moved to silo.

TM#3, no target, has been moved from the conditioning station to the north east silo.

Post new  target hall Excel sheet schedule for beam schedule 131. See attachment 1,2

Post new target hall  MS project schedule for beam schedule131. See attachment 3,4