Laura Lambert wrote: |
Monday, January 20, 2014, 16:32
A new target boat was sprayed with TaC coating and let dry this morning.
The target boat is NOT wrapped with Ta-heat shield.
The boat was installed in Evap#2, chamber is currently being pumped down overnight.
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Tuesday, January 21, 2014, 11:10
Chamber was pumped down to ~2e-7 Torr. HS cooling water valves were opened, no leaks detected.
TGHT was stepped up to 35A, voltage max set at 13V. TBHT currently @ 0A.
Waited ~20min, current stabilized, vacuum started to drop, auto-ramp initiated at 2.0A/min and max setpoint to 700A.
Good vacuum: 3.00e-5 Torr, Bad vacuum 4.00e-5 Torr.
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