Evaluation of kinetic theory collision integrals using the generalized phase shift approach

1980 ◽  
Vol 72 (10) ◽  
pp. 5591-5602 ◽  
Author(s):  
James A. Thomas ◽  
C. F. Curtiss
Keyword(s):  
Phase Shift ◽  
Kinetic Theory ◽  
Collision Integrals

Calculation of Kinetic Theory Collision Integrals by Interpolation

1956 ◽  
Vol 24 (1) ◽  
pp. 171-172 ◽  
Author(s):  
Martin J. Reisfeld ◽  
Edward A. Mason
Keyword(s):  
Kinetic Theory ◽  
Collision Integrals

Electric Polarization Caused by a Diffusion Flow in a Polar Gas Mixture

1974 ◽  
Vol 29 (3) ◽  
pp. 373-375
Author(s):  
S. Hess
Keyword(s):  
Simple Model ◽  
Kinetic Theory ◽  
Electric Polarization ◽  
Constitutive Law ◽  
Gas Mixture ◽  
Diffusion Flow ◽  
Collision Integrals ◽  
Thermo Electric ◽  
Previously Treated ◽  
Symmetric Top Molecules

The kinetic theory of the diffusio-electric polarization is developed analogous to the previously treated thermo-electric polarization (Waldmann, Hess 1969). The relevant constitutive law is derived. The characteristic coefficient determining the magnitude of this effect is related to collision integrals obtained from the Waldmann-Snider equation. A simple model calculation shows that this coefficient will be nonzero, in general, and of measurable size, for polar symmetric top molecules

Kinetic theory of dusty plasmas. III. Dust–dust collision integrals

2001 ◽  
Vol 8 (4) ◽  
pp. 1141 ◽  
Author(s):  
V. N. Tsytovich ◽  
U. de Angelis
Keyword(s):  
Kinetic Theory ◽  
Dusty Plasmas ◽  
Collision Integrals

Object Wave Determination by Single-Sideband Methods

1973 ◽  
Vol 31 ◽  
pp. 266-267
Author(s):  
Kenneth H. Downing ◽  
Benjamin M. Siegel
Keyword(s):  
Phase Shift ◽  
Carbon Films ◽  
Object Wave ◽  
Electron Wave ◽  
Phase Object ◽  
Heavy Atoms ◽  
Single Sideband ◽  
Thin Carbon ◽  
Additional Phase Shift ◽  
Additional Phase

Under the “weak phase object” approximation, the component of the electron wave scattered by an object is phase shifted by π/2 with respect to the unscattered component. This phase shift has been confirmed for thin carbon films by many experiments dealing with image contrast and the contrast transfer theory. There is also an additional phase shift which is a function of the atomic number of the scattering atom. This shift is negligible for light atoms such as carbon, but becomes significant for heavy atoms as used for stains for biological specimens. The light elements are imaged as phase objects, while those atoms scattering with a larger phase shift may be imaged as amplitude objects. There is a great deal of interest in determining the complete object wave, i.e., both the phase and amplitude components of the electron wave leaving the object.

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