(a) In an Argon plasma, the argon pressure is 7.7 torr at 350 K, and the...

 

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(a) In an Argon plasma, the argon pressure is 7.7 torr at 350 K, and the electron density is 4.3 x 1012 cm3. Assuming a Maxwellian electron energy distribution with Te 2 eV, calculate the rate constants for elastic scattering, electronic excitation and electron impact ionization from the simplified cross-sections given in the graph. Repeat you calculations for Te = 6 eV. Comment on your results. IE-14 1E-15 Elastic Scattering - Electronic Excitation - Impact Ionization IE-16 1E-17 IE-18 10 15 20 25 Electron Energy (eV) (b) Determine the electron temperature at which the rate constants for excitation and ionization are equal. Cross Section (cm) (a) In an Argon plasma, the argon pressure is 7.7 torr at 350 K, and the electron density is 4.3 x 1012 cm3. Assuming a Maxwellian electron energy distribution with Te 2 eV, calculate the rate constants for elastic scattering, electronic excitation and electron impact ionization from the simplified cross-sections given in the graph. Repeat you calculations for Te = 6 eV. Comment on your results. IE-14 1E-15 Elastic Scattering - Electronic Excitation - Impact Ionization IE-16 1E-17 IE-18 10 15 20 25 Electron Energy (eV) (b) Determine the electron temperature at which the rate constants for excitation and ionization are equal. Cross Section (cm)

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