|
Tuesday, February 13, 2018, 11:39
35 circles of 14 mm diameter were packed into a graphite sample container.
35 x UO2/C circles = 5.74 g
Graphite container = 5.20 g
Graphite tube is placed inside a target boat.
Boat previously coated with TaC and sintered.
Ta-target boat is wrapped with 3 used Ta foils for heat shielding and the boat was installed in Evap1.
Chamber currently pumping down.
Tuesday, February 13, 2018, 15:30
Initial IGP1 = 2.73x10e-6 Torr
Tapped up entire process manually to 520 A in 30 min
TGHT = 520 A, 5.41 V
Vacuum coming down nicely indicating carbonization process complete.
Current trip off after 5 min of being at 520 A.
Wednesday, February 14, 2018, 15:32
EVAP1 vented with Argon and the target was removed.
Target was transferred to glove box.
Ta boat and graphite container look unbroken.
|