The various electrical check done on TM#4 after the UC run and before the start of the Ta run.

The west exit #2 module has been moved from the south hot cell to the conditioning station.

I did a leak check this morning on exit 2 module at TCS. LD base  leak rate is 4.00XE-9atm.cc/sec, Base pressure is 0.00 X E-4 torr. All seals, bellows, and flanges are checked. The new FC5 bellow is good. There is a big leak up to 2X E-6 atm.c/sec has been found on IG1S side panel . The panel itself  will be replaced this time. Machine shop is working on it.. Two small leaks in E-9  atm.cc/sec range have been found on the  o-ring between service cap steel welding frame and the whole cap top cover plate in different location . All bolts on the top plate pressing down the o-ring are very tight. I can do nothing on them. However, I sprayed some vacuum seal around the leak area. The leaks are small  and close to ITE TP1S. I don not think we have to replace it at this moment.  Basically, The module is good to move to ITW tomorrow morning. 

Chad and I did  leak check on TM2 HS line at SHC yesterday. Base LR 0.0XE-9 atm.cc/sec.   No response on LD. during helium spray.   Today , I did helium pressure test at TCS. base LR 0.0xe-9atm.cc/sec. applied 70psi helium for 3 minute. leak rate slowly climbed to2.2 Xe-7 atm.cc/sec ate stopped there.  The result is close to before.

Frank and Anders disconnected the water and electrical connections this afternoon after the target was conditioned over the weekend. The heater ramping program ran with the wrong gauge selected, causing the vacuum to go higher than planned. The module will be moved to ITW tomorrow.

TM4 was disconnected in ITE. Checklist list in attachment.

 TM#4 with UC#26 has been moved from the south hot cell to the conditioning station.

Frank and Anders installed lid on TCS and started vacuum system yesterday. To run over the Holidays. Retrieved dose badge from operational storage area. Measured field to be ~ 10 mSv/h at ~9am. Beam went off about 8:30am.

Found pumps off after the holidays. Restarted roughing pump and TP1S

The tCS will be vented soon for TM2 move later this week.

 TM#2 has been moved from the south hot cell to the conditioning station.

TCS: TP1, TP2 and TP1S are started.

I will restart all pumps Monday morning.  

No issue.

leak detector base LR: 0.0Xe-9atm.cc/sec. helium 70 psi. test time : 3 minutes for each circuit.The results in atm.cc/sec are Ta+(A):1.8  XE-8. TA-(B):0.0xE-9. Tu-(C):1.2XE-7. TU+(D):1.6XE-7. Coil 2 (PQ):0.0XE-9. Coil 1 (RU):0.0XE-9. MSP:2.2XE-7. EE:1.0XE-7. HS:N/A. Window:5.8XE-9

Preparation on TM2 move from TCS to SHC.

 TM#2 with no source tray has been moved from the south hot cell to the conditioning station.

BIAS and EZL connected. No water flowing into the module (water looped on top of module)

Friday, March 01, 2019, 08:20: 10kV

Friday, March 01, 2019, 08:40: 20kV

Friday, March 01, 2019, 08:57: 30kV

Friday, March 01, 2019, 11:00: 40kV

Friday, March 01, 2019, 15:23: 50kV

Monday, March 04, 2019, 08:50: 50kV

Monday, March 04, 2019, 09:22: 52.5kV

Monday, March 04, 2019, 10:01: Spark tripped TPs at 54kV

Monday, March 04, 2019, 10:04: 50kV

Monday, March 04, 2019, 10:14: Multiple sparks at 54kV. Lowered to 30kV to stop.

Monday, March 04, 2019, 10:15: 40kV

Monday, March 04, 2019, 10:16: Sparking at 42kV. Lowered to 40kV

Monday, March 04, 2019, 10:19: 42kV

Monday, March 04, 2019, 10:48: 50kV

Monday, March 04, 2019, 11:11: 52.5kV

Monday, March 04, 2019, 11:25: 54kV

Monday, March 04, 2019, 11:50: 55kV

Monday, March 04, 2019, 13:33: 3 sparks observed for the last 1.5h

Removed HV cover to avoid sparking between F/T and cover.

Monday, March 04, 2019, 14:02:20kV

Monday, March 04, 2019, 14:06: 50kV

 Monday, March 04, 2019, 14:12: 55kV

Monday, March 04, 2019, 14:20: Multiple sparks at 56kV. Lowered to 30kV to stop.

Monday, March 04, 2019, 14:27: 40kV

Monday, March 04, 2019, 14:29: 50kV

Monday, March 04, 2019, 14:32: 55kV

Monday, March 04, 2019, 14:40: 56kV

Monday, March 04, 2019, 14:55: Multiple sparks at 57kV. Lowered to 30kV to stop

Monday, March 04, 2019, 15:01: 55kV

Monday, March 04, 2019, 15:36: 57kV

Monday, March 04, 2019, 15:51: 57.5kV

Monday, March 04, 2019, 16:30: ~1 spark in 0.5h, somewhat unstable current (see attached Word file)

Monday, March 04, 2019, 16:30: HV off

Spark between HV cover vertical mesh plate and HS 60KV  bias connecting clamp 90degree angle at 55 KV on TM2 top. HV cover is removed to test above  55KV. The spark triggered TH and SHC ventilation secondary alarm.