Uncertainties in the Standard Moments, the Derivation of the Y1 to Y8 parameters, and the Derivation of w₁ to w₈ for Feynman Histograms

Technical Report · Thu Jun 02 00:00:00 EDT 2016

DOI:https://doi.org/10.2172/1257079· OSTI ID:1257079

Smith-Nelson, Mark A. ^[1]; Cutler, Theresa Elizabeth ^[1]; Hutchinson, Jesson D. ^[1]

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1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Momentum is a neutron multiplicity analysis software package that calculates a variety of parameters associated with Feynman histograms. While most of these parameters are documented in Cifarelli and Smith-Nelson, there are some parameters which are not. Most prominent of these are the uncertainties in the standard moments, and this paper will explicitly document these parameters. This paper will also document the higher-order Y_n parameters and their associated ω_n functions because they may be useful for future applications. The generation of what is referred to as Feynman histograms is not explained here.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC52-06NA25396
• OSTI ID: 1257079
• Report Number(s): LA-UR-16-23837; TRN: US1601481
• Country of Publication: United States
• Language: English

Related Subjects

97 MATHEMATICS AND COMPUTING
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
NEUTRONS
STATISTICS
M CODES
FUNCTIONS
MULTIPLICITY
DATA COVARIANCES
Feynman histograms multiplicity uncertainty