Inclusive inelastic scattering in distorted - wave Born - approximation - random - phase - approximation theory

1975 ◽  
Vol 11 (5) ◽  
pp. 1634-1637 ◽  
Author(s):  
S. F. Tsai ◽  
G. F. Bertsch
Keyword(s):  
Inelastic Scattering ◽  
Approximation Theory ◽  
Born Approximation ◽  
Random Phase Approximation ◽  
Random Phase ◽  
Phase Approximation ◽  
Distorted Wave ◽  
Distorted Wave Born Approximation

Interpretation of Preferential Adsorption Using Random Phase Approximation Theory

1995 ◽  
Vol 60 (10) ◽  
pp. 1641-1652 ◽  
Author(s):  
Henri C. Benoît ◽  
Claude Strazielle
Keyword(s):  
Approximation Theory ◽  
Random Phase Approximation ◽  
Virial Coefficient ◽  
Random Phase ◽  
Second Virial Coefficient ◽  
Solvent Mixture ◽  
Gyration Radius ◽  
Thermodynamic Quantities ◽  
Phase Approximation ◽  
Preferential Adsorption

It has been shown that in light scattering experiments with polymers replacement of a solvent by a solvent mixture causes problems due to preferential adsorption of one of the solvents. The present paper extends this theory to be applicable to any angle of observation and any concentration by using the random phase approximation theory proposed by de Gennes. The corresponding formulas provide expressions for molecular weight, gyration radius, and the second virial coefficient, which enables measurements of these quantities provided enough information on molecular and thermodynamic quantities is available.

A random phase approximation theory of nuclear relaxation in CuO2planes

1990 ◽  
Vol 67 (9) ◽  
pp. 5079-5081 ◽  
Author(s):  
N. Bulut ◽  
D. W. Hone ◽  
D. J. Scalapino ◽  
N. E. Bickers
Keyword(s):  
Approximation Theory ◽  
Random Phase Approximation ◽  
Random Phase ◽  
Nuclear Relaxation ◽  
Phase Approximation
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