Thursday, May 29, 2025, 06:55

Total number of foils:

Total length packed

container has 4 Ta heat shields (one inner only around fins)

No endcaps inserted to facilitate out-gassing

Ta coated spring at both ends

ramp to 500A @ 1A/min TGHT and to 230A on TBHT

max approx 700A on TGHT and 230A on TBHT (Omega slope set = 0.990)

Then temperature = 1800C

TBHT will be set fixed at 230 A (max).  TBHT heated manually and automatically to max.

Good vac at 5.00 e -4 Torr

Bad vac at 5.00 e-2 Torr

 IGP1= 1.3e-06 Torr at start of initial ramp.

initiating ramp up

Thursday, May 29, 2025, 20:12

Final current 738 on readback.  Will leave for 4 hours.  OMEGA reads 1750 but staying near sintering current.

Thursday, May 29, 2025, 23:55

Starting rampdown at -2A/min TGHT and -1A/min TBHT