Computer Programs for Automation of Two Small-Angle X-Ray Scattering Diffractometers.

Abstract

SPASTIC 76 is an update of previously reported programs written for a minicomputer to permit data acquisition with a small-angle X-ray diffractometer. SPASTIC denotes System for Programming Angles, Scaler, and Timer by Internal Counting, and indicates the general approach used for automation, involving a simple interface and stepping motor control. The present programs are written for two diffractometers of the Bonse-Hart and the Kratky designs, and run on a PDP-8L computer with 8,192 words of core memory. The various programs include routines for finding the zero position and integral breadth of the primary beam, and for step-scanning through the scattering regions. The latter routine incorporates integrations for the Porod invariant. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1976
Accession Number
ADA036865

Entities

People

  • C. Richard Desper

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • C4I
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Computer Programming
  • Computer Programs
  • Computers
  • Data Acquisition
  • Diffraction
  • Language
  • Materials
  • Materials Laboratories
  • Materials Science
  • Mechanics
  • New York
  • Scattering
  • Systems Engineering
  • United States
  • X Ray Scattering
  • X Rays
  • X-Ray Diffraction

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Database Systems and Applications
  • Nanofabrication and Microfabrication.