27th 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 3.46e-7 [m]
Mean Free Path 4.14e-1 [m]
Debye Length 4.07e-4 [m]
Larmor Radius Electrons [m]
Larmor Radius Ions [m]
Densities
Neutrals 2.42e+19 [m-3]
Electrons 1.00e+15 [m^-3]
Ionisation Degree 4.14e-3% [percent]
Frequencies
Plasma Frequency (electrons) 1.79e+9 [rad s-1]
2.85e+2 [MHz]
Plasma Frequency (ions) 6.66e+6 [rad s-1]
1.06e+0 [MHz]
Cyclotron Frequency (electrons) 0.00e+0 [rad s-1]
Cyclotron Frequency (ions) 0.00e+0 [rad s-1]
Upper Hybrid (electrons) 2.85e+2 [MHz]
Lower Hybrid 0.00e+0 [MHz]
Collision Frequency (electrons vs. neutrals) 2.82e+6 s-1
4.48e-1 [MHz]
Velocities
Thermal velocity (electrons) 1.17e+6 [m s-1]
Sound speed (electrons) 7.30e+5 [m s-1]
Sound speed (ions) - Bohm velocity 2.71e+3 [m s-1]
Thermal velocity (neutrals) 4.02e+2 [m s-1]
Alfven velocity 0.00e+0 (0.00e+0 eV) [m s-1]
Fluxes
Bohm flux (ions) 2.71e+18 [m-2 s-1]
Directed flux (neutrals) 2.43e+21 [m-2 s-1]
Sheath
Matrix 4.40e-3 [m]
Child Langmuir 6.82e-3 [m]
Ignition
Ignition Voltage -9.18e-1 [V]
Plasma Chemistry
Residence Time 8.47e-3 [s]
Specific Energy Input 6.25e+0 [eV]
Optics
Refractive Index (no coll., B=0) I 9.46e+0