28th International School on Low Temperature Plasma Physics: Basics and Applications

Plasma Calculator

This is an extension of the original Nick Braithwaite Plasmacalculator Excel-Sheet.

Input Parameter

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Output Parameter

Parameter Value Unit
Distances
Neutral-Neutral 1.61e-7 [m]
Mean Free Path 2.07e-2 [m]
Debye Length 7.44e-6 [m]
Larmor Radius Electrons [m]
Larmor Radius Ions [m]
Densities
Neutrals 2.42e+20 [m-3]
Electrons 1.00e+18 [m^-3]
Ionisation Degree 4.14e-1 % [percent]
Frequencies
Plasma Frequency (electrons) 5.67e+10 [rad s-1]
9.03e+3 [MHz]
Plasma Frequency (ions) 2.94e+8 [rad s-1]
4.69e+1 [MHz]
Cyclotron Frequency (electrons) 0.00e+0 [rad s-1]
Cyclotron Frequency (ions) 0.00e+0 [rad s-1]
Upper Hybrid (electrons) 9.03e+3 [MHz]
Lower Hybrid 0.00e+0 [MHz]
Collision Frequency (electrons vs. neutrals) 3.25e+7 s-1
5.18e+0 [MHz]
Velocities
Thermal velocity (electrons) 6.73e+5 [m s-1]
Sound speed (electrons) 4.22e+5 [m s-1]
Sound speed (ions) - Bohm velocity 2.19e+3 [m s-1]
Thermal velocity (neutrals) 5.62e+2 [m s-1]
Alfven velocity [m s-1]
Fluxes
Bohm flux (ions) 2.19e+21 [m-2 s-1]
Directed flux (neutrals) 3.39e+22 [m-2 s-1]
Sheath
Matrix 4.70e-4 [m]
Child Langmuir 1.76e-3 [m]
Ignition
Ignition Voltage 1.40e+2 [V]
Plasma Chemistry
Residence Time 2.78e+2 [s]
Specific Energy Input 1.95e+4 [eV]
Optics
Refractive Index (no coll., B=0) I 3.55e+0