A Fast Approximation to the Complementary Error Function for use in Fitting Gamma-Ray Peaks.

Abstract

A fast approximation to the complementary error function has been programmed and tested for use in the peak-shape function for fitting peaks in gamma-ray spectra. The function was compared for speed and accuracy on the NRL ASC 7 computer to the ASC mathematical library version of the complementary error function. The approximation has resulted in a 50% time savings in the computer program HYPERMET which was developed at NRL for automatic analysis of gamma-ray spectra. Source codes for the test progams are given in an Appendix. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Apr 24, 1979
Accession Number
ADA068368

Entities

People

  • Gary W. Phillips

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Accuracy
  • Amplitude
  • Assembly Languages
  • Compilers
  • Computer Programming
  • Computer Programs
  • Computers
  • Digital Computers
  • Errors
  • Gamma Ray Spectra
  • Gamma Rays
  • Libraries
  • Military Research
  • Optimization
  • Precision
  • Spectra

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Computer Science.
  • Nuclear and Radiation Engineering.