Accession Number:

AD0654929

Title:

NON LINEAR LEAST SQUARES COMPUTER ANALYSIS OF MOSSBAUER TRANSMISSION SPECTRA,

Descriptive Note:

Corporate Author:

ILLINOIS UNIV URBANA DEPT OF PHYSICS

Report Date:

1967-03-01

Pagination or Media Count:

64.0

Abstract:

It is known that computer programs which utilize blind search and maximum slope methods to fit a non-linear N-parameter function to experimental Mossbauer data are slow and unreliable, and if N is large, say N 10 they cannot be used. The Hartley-modified Gauss-Newton method for fitting nonlinear functions by least squares and was applied to the fitting of Mossbauer data. Using this modified Gauss-Newton method, computer running time was reduced by roughly a factor of 20, and it was possible to fit functions with as many as 30 parameters in a few minutes.

Subject Categories:

  • Radiation and Nuclear Chemistry
  • Computer Programming and Software
  • Nuclear Physics and Elementary Particle Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE