Uncertainty analysis of signal deconvolution using a measured instrument response function

Hartouni, E. P.; Beeman, B.; Caggiano, J. A.; Cerjan, C.; Eckart, M. J.; Grim, G. P.; Hatarik, R.; Moore, A. S.; Munro, D. H.; Phillips, T.; Sayre, D. B.

doi:10.1063/1.4963867

Title: Uncertainty analysis of signal deconvolution using a measured instrument response function

Journal Article · Wed Oct 05 00:00:00 EDT 2016 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4963867· OSTI ID:1258534

^[1]; Beeman, B. ^[1]; Caggiano, J. A. ^[1];

^[1]; Eckart, M. J. ^[1]; Grim, G. P. ^[1]; Hatarik, R. ^[1]; Moore, A. S. ^[1];

^[1];

^[1]; Sayre, D. B. ^[1]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

A common analysis procedure minimizes the ln-likelihood that a set of experimental observables matches a parameterized model of the observation. The model includes a description of the underlying physical process as well as the instrument response function (IRF). Here, we investigate the National Ignition Facility (NIF) neutron time-of-flight (nTOF) spectrometers, the IRF is constructed from measurements and models. IRF measurements have a finite precision that can make significant contributions to the uncertainty estimate of the physical model’s parameters. Finally, we apply a Bayesian analysis to properly account for IRF uncertainties in calculating the ln-likelihood function used to find the optimum physical parameters.

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Research Organization:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1258534

Report Number(s):: LLNL-PROC-694045; RSINAK

Journal Information:: Review of Scientific Instruments, Vol. 87, Issue 11; Conference: Presented at: 21st Topical Conference on High-Temperature Plasma Diagnostics, Madison, WI, United States, Jun 05 - Jun 09, 2016; ISSN 0034-6748

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 2 works

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References (11)

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