Tuesday, November 22, 2022, 14:58
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)
Heating autoramp starged at 4A/min on both TGHT and TBHT to 40A
Then at 2A/min on both heaters to 120A.
Good vacuum = 5.0 e-02 Torr
Bad vacuum = 5.0E-04 Torr
leaving to pressure down.
Wednesday, November 22, 2022, 19:10
OMEGA = 1942 C @ 396A on TGHT
lowered to 386A to 1900 and left for 4 hours.
After four hours, started rampdown at-2A/min TGHT and -1A/min TBHT
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