Programs in Physics & Physical Chemistry
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|Manuscript Title: Computation of phonon spectrum from the cold neutron incoherent inelastic scattering by a polycrystal.|
|Authors: T.D. Sokolovskij, L.A. Rogoschenko|
|Program title: RESTOR 1|
|Catalogue identifier: ACXT_v1_0|
Distribution format: gz
|Journal reference: Comput. Phys. Commun. 13(1977)381|
|Programming language: Fortran.|
|Computer: EC 1030.|
|Operating system: DOS.|
|RAM: 80K words|
|Word size: 60|
|Keywords: Solid state physics, Phonon spectrum, Incoherent, Inelastic, Scattering, Neutron cold, Monocrystal, Polycrystal, Crystal structure.|
|Classification: 7.6, 7.8.|
Nature of problem:
RESTOR 1 computes the phonon spectrum from the incoherent inelastic scattering data of cold neutrons by a polycrystal consisting of identical atoms.
A nonlinear integral equation for the phonon frequency distribution in a polycrystal is constructed. This equation is solved by the method of consecutive approximations.
The program is limited to polycrystals with identical atoms. It is assumed that the neutrons are scattered with energy gain. But the program RESTOR 1 provides for the case of scattering with energy loss, when the factor exp(epsilon/kBT} appears on the right-hand side of eq. (4) in the long write-up.
The time required for the test run is 4 min 30 s on the EC 1030 computer, of which 2 min is taken in compiling.
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