A Critical Examination of Figure of Merit (FOM). Assessing the Goodness-of-Fit in Gamma/X-ray Peak Analysis

Croft, S.¹  Favalli, Andrea²  Weaver, Brian Phillip²  Williams, Brian J.²  Burr, Thomas Lee²  International Atomic Energy Agency, Vienna (Austria)]  Henzlova, Daniela²  McElroy, R. D.¹ 

[1] Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States);Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

关键词: gamma spectroscopy;    peak deconvolution;    thermoluminescence CGCD;    Poisson regression;    bootstrap;   

DOI  :  10.2172/1222690
RP-ID  :  LA-UR--15-27783
PID  :  OSTI ID: 1222690

美国|英语

来源: SciTech Connect

【 摘 要 】

In this paper we develop and investigate several criteria for assessing how well a proposed spectral form fits observed spectra. We consider the classical improved figure of merit (FOM) along with several modifications, as well as criteria motivated by Poisson regression from the statistical literature. We also develop a new FOM that is based on the statistical idea of the bootstrap. A spectral simulator has been developed to assess the performance of these different criteria under multiple data configurations.