Friday, September 23, 2016, 16:01

*Note: materials were scaled back small amount since only 48.5g of UO2 was left in bottle when usually 50g required to make slurry

UO2/C green was prepared September 22, 2016.

The cast peeled off the glass nicely September 23, 2016 and loaded into evap1.

Some materials were stuck on the WC jar wall and balls, consistent with every time.

Initial UO2 powder used = 48.52g (Inventory R-00835A, no more UO2 left in bottle! Empty bottle = 68.33g)

Graphite powder used = 9.78g

Green cast dried UO2/C + organic mass = 59.21g 

The green was rolled up and wrapped in a piece of graphite sheet.

The Ta-target boat was wrapped with 3-layers of heat shield and installed in evap1 today.

Chamber is currently pumping down, will remain under vacuum over weekend and initiate ramping process monday.

Target boat will be ramped up to 520A at the rate of 0.1A/min.

Vacuum limit stop at 5.0e-5 Torr, backing off at 6.0e-5 Torr.

Monday, September 26, 2016, 13:52

IG1 = 1.56e-6 Torr

Tapped up to 35A

Waited ~1.5hrs, vacuum stable.

IG1 = 1.23e-5 Torr

Initiating auto-ramp

 Friday, October 07, 2016, 13:19

TGHT tripped off oct 5th at 7pm   alarm handlers were not on, so pager never went off

TGHT was at ~450A and vacuum stable when it tripped off

Reason for this is currently unknown

Ion gauge didn't trip off, neither did the water

Auto-ramping at 2.0A/min back up to 400A currently...

 Friday, October 07, 2016, 16:30

TGHT was ramped up to 420A at 2.0A/min today

IG1 = 4.9e-5 Torr

Changed ramping rate to 0.1A/min for the TGHT with a final setpoint of 520A

Alarm handlers on: if anything happens over weekend pager will go off

Tuesday, October 11, 2016, 10:30 

IG1 = 1.2e-6 Torr

TGHT = 520A, 5.35V

TGHT has remained at max setpoint for ~2.5days

Carbonization process is complete.

Initiating auto-cool at 2.0A/min.

 Wednesday, October 12, 2016, 16:23

Vented in Ar and opened up evap1 this morning.

Stored in glove box.

Flakes look good, ~45g produced.