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

All TCS and TM4 turbo-pumps were started yesterday. Overnight pumping down is good so far.

The bundle of electrical checks, first one is the Iglis that failed, the second is the everything passed at the hot cell and the third is a the conditioning station under vacuum.

Conditioning by ISAC operations

Saturday, September 24, 2016, 11:15: RGA on for heater conditioning. (kept off during HV conditioning)

Sunday, September 25, 2016, 07:44: TGHT and TBHT voltage jumps during heater ramping. Likely contact between target and heat shield. Contacted ISAC operations and asked to abort ramping at current values. TGHT/TBHT 500 /270 A

Monday, September 26, 2016, 08:22: ISAC operations resuming ramping to 550 A. Corrected TGHT voltage at ISAC TS was ~6.2 V at 580 A. Expected voltage at TCS would then be 6.2 + (3.4+2.9)E-3*580 = 9.9 V. Limit set at 9.5 V.

Monday, September 26, 2016, 09:09: Increased TGHT voltage limit to 9.6 V to allow it to reach 550 A.

Monday, September 26, 2016, 10:17: Voltage limit increased to 10.2 V which allowed the current to go to 575 A

Tuesday, September 27, 2016, 08:08: Conditioning complete. Ran at 575 / 270 A and 47 kV for about 1 hour. Conditioned cold to 49 kV.

TCS water system and vacuum system are turned  off this morning. The TCS and TM4 are vented.