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 4.10e-8 [m]
Mean Free Path 3.45e-3 [m]
Debye Length 2.68e-6 [m]
Larmor Radius Electrons 1.36e-3 [m]
Larmor Radius Ions 1.05e-3 [m]
Densities
Neutrals 1.45e+22 [m-3]
Electrons 1.00e+22 [m^-3]
Ionisation Degree 6.90e+1 % [percent]
Frequencies
Plasma Frequency (electrons) 5.67e+12 [rad s-1]
9.03e+5 [MHz]
Plasma Frequency (ions) 3.29e+10 [rad s-1]
5.24e+3 [MHz]
Cyclotron Frequency (electrons) 1.78e+10 [rad s-1]
Cyclotron Frequency (ions) 5.99e+5 [rad s-1]
Upper Hybrid (electrons) 9.03e+5 [MHz]
Lower Hybrid 1.64e+1 [MHz]
Collision Frequency (electrons vs. neutrals) 7.03e+9 s-1
1.12e+3 [MHz]
Velocities
Thermal velocity (electrons) 2.43e+7 [m s-1]
Sound speed (electrons) 1.52e+7 [m s-1]
Sound speed (ions) - Bohm velocity 8.82e+4 [m s-1]
Thermal velocity (neutrals) 6.28e+2 [m s-1]
Alfven velocity [m s-1]
Fluxes
Bohm flux (ions) 8.82e+26 [m-2 s-1]
Directed flux (neutrals) 2.28e+24 [m-2 s-1]
Sheath
Matrix 1.05e-6 [m]
Child Langmuir 3.11e-7 [m]
Ignition
Ignition Voltage 1.40e+2 [V]
Plasma Chemistry
Residence Time 3.60e+3 [s]
Specific Energy Input 1.56e+0 [eV]
Optics
Refractive Index (no coll., B=0) I 3.68e+2