Green target material characteristics  (elog 105)

#discs = 49

Average disc thickness = 0.453mm

Empty cartridge weight = 9.42 g

Full cartridge weight = 39.86 g

UO2+C weight = 30.44 g 

Tuesday, March 30, 2021, 16:04

The target material was loaded in a P2N oven, wrapped with three heat shields, and set in the EVAP1

EVAP1 is currently being evacuated.

Wednesday, March 31, 2021, 09:42

IGP1 = 3.24e-6 Torr

Good vacuum 1e-1 Torr

Bad vacuum 5e-1 Torr

Autoramp set to 1A/10s to 150 A. 

Wednesday, March 31, 2021, 10:17

TGHT = .54 V, 149.88 A

IGP1 = 6.3e-4 Torr and increasing

Max pressure = 0.06 Torr

Wednesday, March 31, 2021, 10:33 

IGP1= 0.004 Torr

Autoramp set to 1A/10s to 200 A

Wednesday, March 31, 2021, 10:43

Maximum pressure 0.03 Torr and going down

Autoramp set to 1A/10s to 250 A

Wednesday, March 31, 2021, 11:04 

TGHT = 1.1 V, 299.9 A

IGP1 = 6e-4 Torr and going down

Autoramp set to 2.5 A/10 s to 700 A

Wednesday, March 31, 2021, 11:35

Ramp stopped at 690 A

TGHT = 2.9V, 689.1A

IGP1 = 0.127 Torr 

Wednesday, March 31, 2021, 11:37

Autoramp  set to 700 A at 1A/20s

Manually ramped to 740 A (3V) to make sure carbothermal reduction is done.

 Wednesday, March 31, 2021, 12:00

The power supply tripped, Gelo was monitoring the heating process.

Wednesday, March 31, 2021, 14:33

The target will be heated for 4 hours to get read of impurities.

IGP1 = 6e-6 Torr 

Autoramp set to 650 at 1A/10s 

Wednesday, March 31, 2021, 20:37

TGHT = 2.77 V, 669.6A 

IGP1 = 8.5e-6 Torr

EVAP1 ramped down to 0 A at 2 A/min