TCS and TM3 all vacuum pumps are started. Everything is fine.

 TM#3 has been moved back to the silo from the conditioning station.

 TM#2 with Ta#54 has been moved from the south hot cell to the conditioning station.

  I did helium pressure test on TM2 containment box window and HS line at TCS. @ 70psi helium  for 3 minutes, HS:2.2XE-7 atm.cc/sec., Window:1.2XE-7 atm.cc/sec. There is no change on HS. But LR on window is bigger than before that was in E -9atm.cc/sec range.  

 Due to problems with the regulating valve WPV1, the VFD (Variable Frequency Drive) for the pump has been programmed to do a slow (2 min) ramp up. WPV1 has been bypassed and left fully opened. Work was done by Dave Morris

Thursday, September 28, 2017

Cooling water not yet connected to TM.

High leakage current still observed. 200 uA at 22 kV. Did not go past 25 kV. 

Friday, September 29, 2017, 14:05: Started heater ramping to 580 / 200 A at 1 A/min

Friday, September 29, 2017, 14:09: BIAS / EZL / EE at 20 / 10 / 1.5 kV. BIAS current at 90 uA

Monday, October 02, 2017, 10:29: Accidentally set BIAS current limit to 0 A (step size too large) at 28 kV. This also caused the TGHT to got to 0 A. Recovered to 580 A in 10 - 15 s.

Monday, October 02, 2017, 12:07: Ramping down heaters at 2 A / min

 HV was brought up to 70 kV for 1 h without sparks to test the new water installation.

TCS  cooling polyurethane lines have been re-routed to solve to HV sparking issue on old configuration between lines and bais plate.  New re-routed system is tested to 70KV without spark. No leak has been found on new lines after the test.

ECO 4369, drawings and models IRH1715, IRH1716 have been issued and released for this job. Drawings and Models are located in PDM-ISAC1 -TCS polyurethane water lines re-route folder.

 TM#4 with SiC#37 has been moved from the south hot cell to the conditioning station.

Chad and I leak checked TM4 HS line after new target is installed yesterday. No leak has been found. Also, I helium pressurized the HS line at TCS this morning. TM4 HS line is good on this test. The TM4 gas line configuration on TM4 top is leak check as well. No problem.

Thursday, October 19, 2017, 14:20: EE configured for conditioning. HV cage locked up

Thursday, October 19, 2017, 16:46: BIAS / EL / EE at 45 / 22.5 / 0 kV

Thursday, October 19, 2017, 17:16: 30 min without sparking. Lowering to 0. Continue conditioning tomorrow.

Friday, October 20, 2017, 08:22: Resuming HV conditioning

Friday, October 20, 2017, 08:44:  BIAS / EL / EE at 45 / 22.5 / 0 kV

Friday, October 20, 2017, 09:48: No sparking. Continue conditionoing

Friday, October 20, 2017, 10:40: BIAS / EL / EE at 50 / 22.5 / 0 kV

Friday, October 20, 2017, 11:30: HV spark (at 52.5 kV) tripped TP2 and TP1s resulting in IG1S and power supplies tripping.

Friday, October 20, 2017, 13:50: Gelo is troubleshooting flickering on/off of ANODE, TGHT and TBHT power supplies.

Friday, October 20, 2017, 13:51: BIAS / EL / EE at 50 / 25 / 0 kV

Friday, October 20, 2017, 14:26: BIAS / EL / EE at 55 / 28 / 0 kV

Friday, October 20, 2017, 14:37: TP2 tripped on spark

Friday, October 20, 2017, 14:51: Gelo has determined there is a communication problem with the PLC on the HV platform. Troubleshooting continues.

Friday, October 20, 2017, 19:02: Troubleshooting did not succeed. Not able to control power supplies. Troubleshooting continue on Monday.

Monday, October 23, 2017, 09:00: After starting the TCS again today communication has been reestablished. Started heater conditioning.

Monday, October 23, 2017, 14:03: Heater ramping previously aborted and ramp down started due to ongoing PLC communication issues. TGHT and TBHT power supplies tripped on timeout around 13:45. Gelo will continue the troubleshooting.

Monday, October 23, 2017, 19:55: Switching off source after operating for 5 hours without any communication glitches detected (fiber optic communication cables swapped between HV platform and BIAS/EZL PLCs)

 After extensive troubleshooting the communication fiber was found to be damaged and has been replaced by Gelo.

The TM2 HS line was leak checked at SHC yesterday . 0.9xE-9 atm.cc/sec.Helium sprayed by Chad, NO leak.  It was helium pressurized at TCS this morning. Leak rat:2.5 XE-7 atm.c/sec. The result  is same as last time check. No concern.

TCS vacuum system and water system have been started as well. Everything looks fine.

Thursday, November 09, 2017, 10:40: BIAS / EL to 30 / 15 kV. 400 uA on BIAS

Bias was stable for 1 hour. Handed over to RIB ops for heater conditioning.

Shielding plug is installed onto TCS. TCS is being pumped down to keep it under vacuum for the rest of the year.

 Dakine is on site to do maintenance on the chiller. The tech requested the chiller to operate.

Powered down mechanical pumps in ISAC-I Experimental hall, vacuum gauge and turbo pump controllers in ISAC-I B2 North Hot Cell service area

Tuesday, January 02, 2018, 14:45: TP1S started

Tested all 3 compressors and MP2