Wednesday, May 16, 2018, 09:56

Container coated with TaC using 'flushing technique' and let dry over weekend.

Cleaned ionizer tube with acetone, no coating inside ionizer tube.

Wrapped with 3 x Ta heat shields, not incl center block

OMEGA slope = 0.98

*NOTE: realized after pumping down, filament on IGP2 is burnt out and needs replacing, will order a new one and use IGP1 for this process

Thursday, May 17, 2018, 13:15 

HS water valves remained open since the last time evap2 was used, no leak check done.

Tapped up manually to 50A.

Waited ~1hr

Vacuum stable.

IGP1 = 1e-6 Torr

Initiating auto ramp for TGHT @ 0.2A/min to a max setpoint of 350A

Initiating auto ramp for TBHT @ 0.1A/min to a max setpoint of 230A

Once max setpoints achieved, will tap up manually to final desired temperature of 1900C

Friday, May 18, 2018, 13:00 

Tapped up manually.

TGHT = 495A, 8.84V

TBHT = 230A, 3.26V

MIKRON = 2000C

Filament = 1910C

OMEGA = 1910C

Will remain at max setpoints over weekend.

Tuesday, May 22, 2018, 10:04 

Remained at max setpoints over long wknd.

TGHT = 495A, 8.85V

TBHT = 230A, 3.26V

IGP1 = 2.47e-7 Torr

Initiating auto-cool at 2.0A/min and 1.0A/min for the TGHT and TBHT respectively.

Wednesday, May 23, 2018, 10:08 

Vented in air this morning.

Container looks good!

Transferred into glove box.