Programs in Physics & Physical Chemistry
|[Licence| Download | New Version Template] aclb_v1_0.gz(42 Kbytes)|
|Manuscript Title: RAD-TRAP, a program for the computation of the eigenvalues and eigenfunctions of the Holstein radiation-trapping equation.|
|Authors: A.F. Molisch, B.P. Oehry, W. Schupita, G. Magerl|
|Program title: RAD-TRAP|
|Catalogue identifier: ACLB_v1_0|
Distribution format: gz
|Journal reference: Comput. Phys. Commun. 74(1993)81|
|Programming language: Fortran.|
|Computer: VAX 3100.|
|Operating system: VMS.|
|RAM: 500K words|
|Word size: 32|
|Keywords: Trapping radiation, Radiative transfer, Fredholm integral Equations, Lifetime measurements, Lineshape measurements, Eigenvalues.|
Nature of problem:
Computation of the eigenvalues and eigenfunctions of the Holstein integral equation describing radiation trapping in an atomic vapor (in one-dimensional geometries).
Reduction of the Fredholm integral equation of the second kind to an algebraic eigenvalue problem which is solved by standard methods.
Restrictions of the achievable accuracy by memory and run-time limitat- ions.
Uses subroutines from a standard library of mathematical subprograms, NAGLIB.
Strongly dependent on the chosen geometry, the lineshape, the opacity and especially the required accuracy; will be between 1 and 1000 CPU seconds in most practical cases.
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