Friday, June 11, 2021, 08:05

Target boat with a layer of niobium foil on the bottom is used to heat up Nb samples to 1100 C for 4 hrs.

OMEGA slope = 0.99

The niobium samples are wrapped in a layer of  Nb foil.

Boat is wrapped with 2 layers of Nb foil.

Good vacuum 3.00e-02 Torr

Bad vacuum 5.00e-02 Torr

Autoramping TGHT at 2A/min to 50A then to 100A, then monitor until desired temperature

Initial IGP1= 9.4e-07 Torr

Friday, June 11, 2021, 09:59

TGHT = 200 A, 2.7V

IGP1=  9.8e-07 Torr

Tap to 1100C

Friday, June 11, 2021, 10:09 

Temperature reached at 10:05 am.

TGHT = 224A, 3.1V

IGP1= 1.0e-06 Torr

OMEGA= 1100C +/- 10C fluctuations

Friday, June 11, 2021, 14:10

TGHT = 224A, 3.1V

IGP1= 9.2e-.07 Torr

OMEGA = 1100C +/-  10C fluctuations

Started rampdown at -3A/min