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Area Radio wave propagation / Terrestrial ionized media

IEV ref705-06-10

en
plasma frequency (electronic)
the oscillation frequency at which a plasma, locally disturbed by an excess or depletion of electrons, reverts to its macroscopic state of neutral equilibrium, supposing that the ions remain fixed in position

Note – The plasma frequency fp is given by the equation:

f p = e 2π n e m ε 0 MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaaiaadAgadaWgaaWcbaGaaiiCaaqabaGccqGH9aqpdaWcaaqaaiaadwgaaeaacaaIYaacdaGae8hWdahaamaakaaabaWaaSaaaeaacaWGUbWaaSbaaSqaaiGacwgaaeqaaaGcbaGaamyBaiabew7aLnaaBaaaleaacaGGVbaabeaaaaaabeaaaaa@41CE@

where e is the electron charge, m is the electron mass, ne is the electron density, ε0 is the electric constant.


fr
fréquence de plasma (électronique) f
fréquence des oscillations par lesquelles un plasma, perturbé localement sous la forme d'un excès ou d'un déficit d'électrons, tend à revenir vers son état d'équilibre de neutralité macroscopique, en supposant que les ions restent fixes

Note – La fréquence de plasma fp est donné par l'expression:

f p = e 2π n e m ε 0 MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaaiaadAgadaWgaaWcbaGaaiiCaaqabaGccqGH9aqpdaWcaaqaaiaadwgaaeaacaaIYaacdaGae8hWdahaamaakaaabaWaaSaaaeaacaWGUbWaaSbaaSqaaiGacwgaaeqaaaGcbaGaamyBaiabew7aLnaaBaaaleaacaGGVbaabeaaaaaabeaaaaa@41CE@

e est la charge de l'électron, m est la masse de l'électron, ne est la densité électronique, ε0 est la constante électrique.


ar
تردد البلازما (الكتروني)

de
Plasmafrequenz, f

es
frecuencia del plasma (electrónica)

it
frequenza del plasma (elettronica)

ko
플라스마 주파수, <전자>

ja
プラズマ周波数, <電子の>

pl
częstotliwość plazmy (elektronowej)

pt
frequência de plasma (electrónico)

sv
plasmafrekvens

Publication date: 1995-09
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