Hello! SPIS users. I’m doing research on hall thruster plume using SPIS.
I have a two question for checking. I made a model for SPT-100 in vacuum chamber.
Pressure of the test facility is 2mPa. In order to consider back pressure(2mPa), I entered reaction as follows reaction : {Xe+}+{Xe(0.002Pa)}>{fastXe}+{Xe+}. does it mean back pressure is 0.002Pa?
and The second question is, if I don’t enter a specific value in the pressure, does SPIS perceive it as a vacuum. (reaction : {Xe+}+{Xe}>{fastXe}+{Xe+})