Thursday, March 16, 2023, 13:38
The coated container was wrapped in four Ta foil heatshields.
Target temperature on OMEGA= 1860-1900 C
OMEGA slope:= 0.990
Target time at max temperature = 4 hours
Final Current TBHT= 230A
Final TGHT current= ~400A (adjustable)
Good vacuum = 5.0 e-02 Torr
Bad vacuum = 5.0E-04 Torr
Thursday, March 16, 2023, 22:21
Started ramping TGHT and TBHT @ 1.5A/min to 387 A and 230A respectively.
IGP1 initial = 9.6 e-07 Torr
Cooling projected at 6:48 am tomorrow.
Friday, March 17, 2023, 06:59
Final IGP1= 1.6e-o6 Torr
Started rampdown @-2A/min TGHT and -1A/min TBHT
Coating looks good uniformely.
OMEGA 1850 C (was 1868 initially)
TGHT was 387A, 6.6 V and TBHT was 230A, 4.1 V
Coating very nice |