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posted by Jaime Perez Luna at Apr 6, 2010 4:50 PM
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Hi, well thanks a lot ! Everything seems to work properly using a negative current density for electrons. Thansk again,

Jaime

posted by Nuno Loureiro at Mar 26, 2010 5:43 PM
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Hi,

I also found some problems using sources, but have you tried changing the current density, in the plasma editor, to a negative value? I tried to simulate the same thing you said with the project of the sphere that comes with SPIS and I indeed get 0 population when I don't change the current density to a negative value. However, after the change I get a population for the source1 and the simulation runs well.

What version of SPIS and OS do you use?

Hope this helps,

Nuno

posted by Jaime Perez Luna at Mar 26, 2010 12:07 PM
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Hello everyone !

I a new to SPIS and I am trying to do simple simulations to get used to it. I am trying to simulate an emissive sphere in a plasma with both electron and ion populations described by PIC. The problem is I want the sphere to be an electron source and it doesn't seem to work: no particles are created :

"Monitoring numerics of simulation at time 9.924812E-6 PICVolDistrib ions1: 362753 particles, last numerical time step used = 3.7593985E-8s (max allowed = 8.797073E-6s), numerical speed up = 1.0 PICVolDistrib elec1: 294887 particles, last numerical time step used = 3.7593985E-8s (max allowed = 2.0604317E-7s), numerical speed up = 1.0 PICVolDistrib source1: 0 particles, last numerical time step used = 3.7593985E-8s (max allowed = 3.7618165E-8s), numerical speed up = 1.0 Last local volume potential change: 0.09631772V maximum change, and 0.011914572V average change (last plasma time step = 3.7593985E-8s)"

What is strange is that everything seems to work when I change the partcile type of my source to Xe+ or another ion species. Does anyone have a clue ?