All ITE and TM4  turbo pumps are started. The east station pumping down is good so far.

Update TH schedules . See attachments

ITE and TM4 2017 winter shut down leak check are finished. All ITE primary, secondary vacuum vessel and TM4 water lines are good. No any leak has been found.

Ta#50 has been was removed from TM4 on Wednesday, January 25th.

I watched rust on TM4 and its silo. Most of rust are on est side of module and silo. See attachments

TM#4 has been moved from the SW Silo to the conditioning station.

Yasmine and I did a rust inpsection on TM4 service cap inide surface and shielding plug surface. No rust has been found. Also, all steel bolts on this surface look fine. The inside of silo held this module are rust free as well.  See attachments

TM4 service cap rust are cleaned out at TCS. All top surface of TM4 are wiped and cleaned . The module looks good now. see attachments

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

Electrical check done on TM#4 with UC#19. See attached PDF for results.

UCx#19 has been installed onto TM4. High current fasteners torqued to 130 in lbs. Has been leak and electrical checked and is ready to leave hot cell.

 Wednesday, March 29, 2017, 11:37: RGA on

Wednesday, March 29, 2017, 13:51: Water package on

Thursday, March 30, 2017, 08:50: Restarted chiller. OP3 fault on both VFDs.

Thursday, March 30, 2017, 10:18: Roughing

Thursday, March 30, 2017, 16:02: Configured EE to conditioning mode. All power supplies for SIS operation was checked to be working earlier.

Thursday, March 30, 2017, 16:06: BIAS / EL 10 / 5 kV and 0.02 / 0.04 mA

Thursday, March 30, 2017, 16:10: BIAS / EL210 / 10 kV and 0.03 / 0.06 mA

Thursday, March 30, 2017, 16:11: IG1 at 7.8E-7 T, IG2 at 2.3E-6 T

Thursday, March 30, 2017, 16:21: No sparking. Ramping down for the day

Friday, March 31, 2017, 08:32: BIAS / EL 20 / 10 kV and 0.03 / 0.06 mA

Friday, March 31, 2017, 08:32: IG1 at 4.2E-7 T, IG2 at 1.4E-6 T

Friday, March 31, 2017, 08:45: BIAS / EL 25 / 12.5 kV and 0.04 / 0.08 mA. Some minor vacuum responses around 24 kV

Friday, March 31, 2017, 10:03: BIAS current was limiting at 26 kV after EPICS restart. Updated limit

Friday, March 31, 2017, 10:10: BIAS / EL 30 / 15 kV and 0.04 / 0.09 mA. Vacuum and current responses when increasing BIAS.

Friday, March 31, 2017, 10:54: BIAS / EL 35 / 17.5 kV and 0.05 / 0.10 mA.

Friday, March 31, 2017, 11:24: BIAS / EL 40/ 20 kV and 0.05 / 0.11 mA.

Friday, March 31, 2017, 11:43: BIAS / EL 45/ 22.5 kV and 0.06 / 0.13 mA.

 Friday, March 31, 2017, 13:47: No sparks for ~90 min. Ramping down HV

Friday, March 31, 2017, 13:58: Starting auto-ramping heaters to 100 / 100 A at 1 A/min. Good/bad vacuum at 3E-6 and 5E-6 T on IG2. EE to 1500 V

Friday, March 31, 2017, 14:03: BIAS / EL / EE at 30 / 15 / 1.5 kV and 0.04 / 0.09 / 1.5 mA

Saturday, April 01, 2017, 10:58: Continue auto-ramping to 440 A / 200 A.

Saturday, April 01, 2017, 17:17: IG1 / IG2 to 1.7E-6 and 3.6E-6 T at 440 A. Reduced manually to 430 A to limit outgassing.

Saturday, April 01, 2017, 18:03: Discovered TP2 had tripped off. Likely causing "increased outgassing" above.

Saturday, April 01, 2017, 18:12: TP2 back at speed.

Saturday, April 01, 2017, 23:25 : TP2 fault from spark. Restarting. Ramping down heaters.

Sunday, April 02, 2017, 06:45: Found source to be tripped on water flow TGHT at around 1:15 am. Vacuum and water flow otherwise ok. Set source to 0. To be investigated Monday. 

Monday, April 03, 2017, 11:05: The paddle wheel on the TGHT line was not turning this morning. After running water through a bypass an reconnecting to the module, flow was restored, but it appeared to be at a relatively low rate.

Monday, April 03, 2017, 12:00: BIAS / EL / EE at 30 / 15 / 1.5 kV and 0.03 / 0.09 / 1.5 mA

Monday, April 03, 2017, 12:18: Tested TGHT / TBHT to 20 / 10 A.

Monday, April 03, 2017, 12:18: Increased EE to 2 kV and 2.0 mA

A small leak has been found on TM4 Ta(-) which is marked as "B" on terminal blocks. The LD base Leak rate is 1.2XE-8 atm.cc/sec. 70psi helium has been applied to Ta(-) water line for 3minutes. The leak rate went up to 2.5xE-6 atm.cc/sec and stabilized there. Anders found a helium response on RGA helium reading during the same time. This confirms the leak is real. Other lines are leak checked today also. They are good still. All TM4 water lines were leak checked in ITE in 2017 January. They  were all good at 0.0 X E-9 atm.cc/sec. See attachment e-log.

Leak check on TM4 Ta(-) water lines in service cap is done. LD base LR after 50minutes pumping down:0.0xE-9 atm.cc/sec. base pressure: 0.0XE-4 torr. I sprayed lots helium on welding stems on Ta(-) line in service cap including stems in blue nylon insulator and stems to service tray.  no any response has been foun on LD. The Ta(-) line in service cap is leak free.

 Totally panel open and leak check time is about 12minutes. Argon vented TCS before leak check this morning. 

TM#4 with UC#19 has been moved from the conditioning station to the east target station.

This morning, The helium pressure leak check on TM4 Ta(-) is done after TM4 finished conditioning yesterday.  LD base LR:8.0XE-9 atm.cc/sec, base pressure: 0.0XE-4 torr. Applied 70 psi helium to TM4 TA(-) water line. The LR slowly climbed to 2.2XE-7 atm.cc/sec, and stopped there. Waited for 5 minutes and change at 2.2 X E-7 atm.cc/sec.

 Argon vented TCS and TM4 after pumps are stopped.

all turbo-pumps are started. Everything looks fine so far.

Chad and I did leak check on TM1 HS line at SHC. 0.0XE-9 atm.cc/sec.  No leak.

TM#4 with UC#19 has been moved from ITE to the south hot cell.