Wednesday, October 21, 2015, 17:39, John Wong, Empty, 41077-3, LP-SIS, In progress, Sintering TaC on LPSIS (small block) container
|
Thursday, October 22, 2015, 11:41, Laura Lambert, Empty, 41077-3, LP-SIS, In progress, Sintering TaC on LPSIS (small block) container
|
Thursday, October 22, 2015, 17:10, John Wong, Empty, 41077-3, LP-SIS, In progress, Sintering TaC on LPSIS (small block) container
|
Monday, October 26, 2015, 16:14, Laura Lambert, Empty, 41077-3, LP-SIS, Done, Sintering TaC on LPSIS (small block) container & temp measurements with 1xTa h.s
|
|
John Wong wrote: |
Laura Lambert wrote: |
John Wong wrote: |
Wednesday, October 21, 2015, 17:35
This container is prepared for a backup UCx target (otherwise it will be used for development purposes).
The container is coated with TaC; one layer of Ta-heat shield is used.
TGHT will be ramped up to reach 1900C (previous container had TGHT ramped up to 440A).
TBHT will be ramped up to max 230A.
Chamber is currently being pumped down.
Heating can begin once the vacuum is good, currently at 4.8e-5 Torr.
|
Thursday, October 22, 2015, 11:36
HS water valves opened, no leaks detected.
Tapped up manually to 35A.
Vacuum stabilized, initiated auto-ramp at 0.2A/min and 0.1A/min for the TGHT and TBHT respectively.
Final setpoints TGHT = 300A, TBHT = 230A
IGP1 = 1.0e-6 Torr; TGHT = 45.18A, 0.17V; TBHT = 38.4A, 0.41V
|
Thursday, October 22, 2015, 17:09
Pressure coming down to 1.5e-6 Torr.
Increased ramping rate to 2A/min for both TGHT and TBHT.
|
Monday, October 26, 2015, 16:10
Target container was ramped down over the weekend and taken out today.
Coating looks good.
Will add on another Ta layer and continue with temperature measurements.
See attachment for raw data.
|