Monday, December 19, 2022, 10:38

Cartridge with 175 discs (including 5 analysis discs) loaded into a graphite cartridge. 

To be reduced inside a Ta container tube.  Tube wrapped in 3 Ta foil heatshields

Will keep at reducing current for 4 hours and then 10 hours @ 425A

Good Vacuum: 5.0e-04 Torr

Bad Vacuum: 5.0e-02 Torr

Initial pressure was 6.36 e-07 Torr

Autoramped to 56A @ 1A/30s

Outgassing bump observed starting at 50A and at 56A the maximum pressure was ~1.9e-05 Torr

Monday, December 19, 2022, 10:47

started autoramping at 1A/30s to 90A

Monday, December 19, 2022, 10:50

observed that pressure not increasing radically, therefore ramping up faster.  2A/30s

Monday, December 19, 2022, 10:58

Second pressure bump observed at 90A, 1.0V

leaving at this current until pressure drops

Monday, December 19, 2022, 17:15

ramped to 280A and left at 280 until pressure started dropping

ramping again to 500A @ 2A/30s

Monday, December 19, 2022, 17:26

Stopped at 330A due to pressure hike.  Will allow pressure to drop then continue ramp.

Monday, December 19, 2022, 18:00

restarting ramp @ 2A/30s

Monday, December 19, 2022, 18:11

Pressure started dropping around 350A corresponding to additive gas-off.  Will rampt to 500A @ 2A/30 seconds and then at 1A/30s to 530A

Final current was 548A, 6.7 V.  Will test increasing current after 4 hours (11 pm)

Monday, December 19, 2022, 23:10

ramping down @ 2A/min to 425A .  should be done by 12:00 am and cooling at9:00 am (includes 1 hour ramp down to 425).

Ramping down to zero @ -2A/min

Wednesday, December 21, 2022, 10:47

Final IGP1= 3.7e-07 Torr