Melissa A Schear
Los Alamos National Laboratory
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Featured researches published by Melissa A Schear.
Nuclear Science and Engineering | 2011
Jeremy Lloyd Conlin; Stephen J. Tobin; Adrienne M. LaFleur; Jianwei Hu; T. Lee; Nathan P. Sandoval; Melissa A Schear
Abstract The quantification of the plutonium mass in spent nuclear fuel assemblies is an important measurement for nuclear safeguards practitioners. A program is well underway to develop nondestructive assay instruments that, when combined, will be able to quantify the plutonium content of a spent nuclear fuel assembly. Each instrument will quantify a specific attribute of the spent fuel assembly, e.g., the fissile content. In this paper, we present a Monte Carlo-based method of estimating the mean and distribution of some assembly attributes. An MCNPX model of each instrument has been created, and the response of the instrument was simulated for a range of spent fuel assemblies with discrete parameters (e.g., burnup, initial enrichment, and cooling time). The Monte Carlo-based method interpolates between the modeled results for an instrument to emulate a response for parameters not explicitly modeled. We demonstrate the usefulness of this technique in applying the technique to six different instruments under investigation. The results show that this Monte Carlo-based method can be used to estimate the assembly attributes of a spent fuel assembly based upon the measured response from the instrument.
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2011
Steve J Tobin; Howard O. Menlove; Martyn T. Swinhoe; Melissa A Schear
Archive | 2015
Daniela Henzlova; Richard T. Kouzes; R. McElroy; Paolo Peerani; M. Aspinall; K. Baird; A. Bakel; M. Borella; M. Bourne; L. Bourva; F. Cave; R. Chandra; D. Chernikova; Stephen Croft; G. Dermody; A. Dougan; James H. Ely; E. Fanchini; P. Finocchiaro; Victor Gavron; M. Kureta; Kiril Dimitrov Ianakiev; K. Ishiyama; T. Lee; Ch. Martin; K. McKinny; Howard O. Menlove; Ch. Orton; A. Pappalardo; B. Pedersen
Archive | 2010
Melissa A Schear; Howard O. Menlove; Stephen J. Tobin; Louise G Evans; Sang-Yoon Lee
Archive | 2011
Melissa A Schear; Howard O. Menlove; Louise G Evans; Stephen J. Tobin; Stephen Croft
Archive | 2011
Louise G Evans; Melissa A Schear; John S. Hendricks; Martyn T. Swinhoe; Stephen J. Tobin; Stephen Croft
Archive | 2010
Louise G Evans; Melissa A Schear; Stephen Croft; Steve J Tobin; Martyn T. Swinhoe; Howard O. Menlove
Archive | 2010
Stephen Croft; Louise G Evans; Melissa A Schear; Stephen J. Tobin
Archive | 2011
Howard O. Menlove; Martyn T. Swinhoe; Adrienne M La Fleur; Stephen J. Tobin; Melissa A Schear
Archive | 2011
Melissa A Schear; Howard O. Menlove; Stephen J. Tobin; Louise G Evans; Stephen Croft