FIREBIRD 3 (HELLFIRE 7): A Computer Program for Calculating the Positions of Reflections on X-Ray Powder Diffraction Records, Interplanar Angles, Crystallographic Densities and Assigning Indices to X-Ray Power Diffraction Records,

Abstract

The program input consists of a definition of the unit cell, e.g. its space group, and dimensions; and the X ray wavelengths used. From these data the program lists the positions of all the crystallographically possible X-ray Bragg reflections up to a maximum of 1000. If required, interplanar angles and crystal densities can be calculated. The program can vary the given unit cell dimensions and compare the resultant Bragg reflection positions with experimentally observed values, thereby acting as a guide for the assignment of Miller indices to X-ray powder patterns. FIREBIRD3 is written in FORTRAN 77 for use on an ICL 3980 computer, and represents part of the HELLFIRE suite of computer programs. Keywords: Great Britain. (MJM)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1988
Accession Number
ADA200104

Entities

People

  • A. H. Rogerson
  • B. S. Fox
  • I. F. Ferguson
  • J. F. Wolstenholme
  • M. R. Duckworth

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Bragg Angle
  • Bravais Lattices
  • Computer Programs
  • Computers
  • Crystal Lattices
  • Crystal Structure
  • Crystallography
  • Crystals
  • Diffraction
  • Electron Microscopy
  • Equations
  • Indexes
  • Materials
  • Numbers
  • Standards
  • X Rays
  • X-Ray Diffraction

Fields of Study

  • Physics

Readers

  • Computer Science.
  • Materials Science and Engineering.
  • Optical Physics and Photonics.

Technology Areas

  • Space