Moment theory of ion motion in traps and similar devices: IV. Molecular theories

Autor: Daniel M. Danailov, Larry A. Viehland, Douglas E. Goeringer
Rok vydání: 2006
Předmět:
Zdroj: Journal of Physics B: Atomic, Molecular and Optical Physics. 39:3993-4013
ISSN: 1361-6455
0953-4075
DOI: 10.1088/0953-4075/39/20/001
Popis: This paper extends to molecules the moment theory of ion traps and similar devices where the electric fields vary with both position and time. It is based on the Wang Chang–Uhlenbeck–de Boer equation and a series of successive approximations based on the Maxwell model and the assumption that all other moments of the ion distribution function vary much less rapidly with position and time than does the ion number density. Two versions of the theory are presented: a simpler one, based on spherical-polar basis functions, and a more comprehensive one, based on Cartesian functions.
Databáze: OpenAIRE