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 5.92e-7 [m]
Mean Free Path 6.90e+0 [m]
Debye Length 2.35e-5 [m]
Larmor Radius Electrons 1.20e-4 [m]
Larmor Radius Ions 3.01e-3 [m]
Densities
Neutrals 4.83e+18 [m-3]
Electrons 1.00e+18 [m^-3]
Ionisation Degree 2.07e+1 % [percent]
Frequencies
Plasma Frequency (electrons) 5.67e+10 [rad s-1]
9.03e+3 [MHz]
Plasma Frequency (ions) 1.15e+8 [rad s-1]
1.82e+1 [MHz]
Cyclotron Frequency (electrons) 1.78e+10 [rad s-1]
Cyclotron Frequency (ions) 7.26e+4 [rad s-1]
Upper Hybrid (electrons) 9.46e+3 [MHz]
Lower Hybrid 5.72e+0 [MHz]
Collision Frequency (electrons vs. neutrals) 3.08e+5 s-1
4.91e-2 [MHz]
Velocities
Thermal velocity (electrons) 2.13e+6 [m s-1]
Sound speed (electrons) 1.33e+6 [m s-1]
Sound speed (ions) - Bohm velocity 2.69e+3 [m s-1]
Thermal velocity (neutrals) 2.19e+2 [m s-1]
Alfven velocity [m s-1]
Fluxes
Bohm flux (ions) 2.69e+21 [m-2 s-1]
Directed flux (neutrals) 2.64e+20 [m-2 s-1]
Sheath
Matrix 1.05e-4 [m]
Child Langmuir 1.05e-4 [m]
Ignition
Ignition Voltage -8.36e-1 [V]
Plasma Chemistry
Residence Time 1.92e+0 [s]
Specific Energy Input 1.56e+0 [eV]
Optics
Refractive Index (no coll., B=0) I 3.55e+0