Thursday, May 10, 2018, 16:00
Graphite insert fully loaded with UCx was loaded into previously TaC coated target container.
No end caps on Ta target container.
Weight of graphite tube + UCx discs = 27 g
Currently pumping down in evap1.
Friday, May 11, 2018, 11:41
IGP1 = 1.13e-6 Torr
Good vac at 3.0e-4, bad vac at 6.0e-4 Torr.
Tapped up manually to 100A.
Pressure increased to ~2e-5 Torr
Vacuum stabilized after 40 min
IGP1 = 1e-5 Torr
Initiating auto ramp for TGHT @ 20 A/min to a max setpoint of 520 A
Initiating auto ramp for TBHT @ 10 A/min to a max setpoint of 245 A
Preassure increased o 1e-4 Torr and the auto ramp was aborted
After 8 min IGP1 = 3e-5 Torr
Initiating auto ramp for TGHT @ 10 A/min to a max setpoint of 520 A
Initiating auto ramp for TBHT @ 5 A/min to a max setpoint of 245 A
The vacuum is more stable.
TBHT reached 230 A at 13:00
TGHT reached 520 A at 13:24
Final pressure 1.15e-4 Torr
Target will stay at max current point for a week.
Friday, May 18, 2018, 13:01
IGP1 = 8.03e-7 Torr
TGHT 5.67 V, 519.3 A
TBHT 2.59 V, 228.3 A
Initiation auto cool at TGHT -5 A/min
Initiation auto cool at TBHT -2 A/min
Friday, May 18, 2018, 13:58
Accelerating auto cool TGHT -10 A/min
Accelerating auto cool at TBHT -5 A/min
Friday, May 18, 2018, 18:31
Evap1 was vented in Ar and UCx target was transferred to the glove box |