Appendix

Physical Constants in SI

Image

A.1 Ionization potentials

Xenon12.13 eV
Helium24.59 eV
Argon15.76 eV
Nitrogen14.53 eV

A.2 Work function

MaterialWork Function (eV)
Al4.25
C4.7
Cu4.4
Mo4.3
Ni4.5
W4.54
LaB62.3–2.4

A.3 Ion-induced secondary emission coefficients [1]

Image

A.3.1 Glow discharge

A.3.1.1 Normal cathode fall in various gases

Image

A.3.1.2 A, B coefficients in equation for breakdown voltage

AB
Air14.6365
Ar13.6235
H25130
H2O12.9289
He2.834

A.4 Vacuum arcs

Table A.1

Ion velocity, ...

Get Plasma Engineering now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.