Quasi-elastic X-ray scattering divergence analysis calculation

2019-12-06T07:28:42Z (GMT) by John S. Reid Gordon J. Milne
Abstract A FORTRAN 77 program is described that enables a numerical investigation to be made of the variation of instrumental resolution corrections with apparatus configuration for quasi-elastic X-ray scattering. The program is useful for scattering from phonons, defects, low angle Comptom processes and all instances where the energy change on scattering is at most a small fraction of the incident energy. Account can be taken of an irregular incident beam distribution (in angle and in space), a sampl... Title of program: DIANA88 Catalogue Id: ABJK_v1_0 Nature of problem The program addresses the problem that an inelastic (x-ray) scattering experiment necessarily records scattering smeared over a spatially spread inhomogeneous diverging incident beam, a sample mosaic spread and a finite area detector. Using measured or simulated apparatus characteristics and sample orientations, the program evalutes these effects on given theoretical intensities. Versions of this program held in the CPC repository in Mendeley Data ABJK_v1_0; DIANA88; 10.1016/0010-4655(89)90067-2 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)