Accession Number : ADA141539
Title : Program PREGA Pivotal Regression Analysis of Gamma-Ray Spectra from NaI(T1) Detectors for the ND6620 Computer.
Descriptive Note : Final rept.,
Corporate Author : NAVAL RESEARCH LAB WASHINGTON DC
Personal Author(s) : Phillips,G W ; Glagola,B G
PDF Url : ADA141539
Report Date : 06 Apr 1984
Pagination or Media Count : 192
Abstract : Program PREGA was developed at NRL to perform a fast and efficient regression analysis of a gamma ray spectrum from an unknown source, taken with a NaI(T1) detector. The analysis determines the best subset from a library of standard spectra to use in fitting the data. Output at each step includes relative intensities and uncertainties for each standard used in the fit, plus the partial F statistic for significance of each library element. Final output includes an analysis of variance (ANOVA) table, distribution of residuals, location of largest residuals, distribution of runs of consecutive residuals with the same sign, and the location of largest runs. The program was written for the Nuclear Data ND6620 computer and has been transferred to VAX II/780.
Descriptors : *Computer programs, *Regression analysis, *Gamma ray spectra, Radioactive isotopes, Algorithms, Identification, Least squares method
Subject Categories : Computer Programming and Software
Nuclear Physics & Elementary Particle Physics
Distribution Statement : APPROVED FOR PUBLIC RELEASE