5 papers
On the Feynman-alpha Method for Reflected Fissile Assemblies
Michael Y. Hua, Jesson D. Hutchinson, George E. McKenzie +2
The Feynman-alpha method is a neutron noise technique that is used to estimate the prompt neutron period of fissile assemblies. The method and quantity are of widespread interest i…
Fast Rossi-alpha Measurements of Plutonium using Organic Scintillators
M. Y. Hua, C. A. Bravo, A. T. MacDonald +7
In this work, Rossi-alpha measurements were simultaneously performed with a He-based detection system and an organic scintillator-based detection system. The assembly is 15 kg…
Rossi-alpha Uncertainty Quantification by Analytic, Bootstrap, and Sample Methods to Inform Fitting Best Practices
M. Y. Hua, C. A. Bravo, R. M. Marchie +3
The prompt neutron period (the negative reciprocal of the prompt neutron decay constant) can be estimated using the Rossi-alpha technique that is predicated on fitting Rossi-alpha…
Measured Nondestructive Assay of Np Using Organic Scintillators and Active Neutron Multiplicity Counting
Michael Y. Hua, Thomas A. Plummer, Jesson D. Hutchinson +3
The purpose of nondestructive assay in the context of nuclear safeguards is to precisely verify the declared mass of a sample of nuclear material in a noninhibitive amount of time.…
Event-by-Event Multiplicity Correlations in Cf(sf)
Stefano Marin, Vladimir A. Protopopescu, Ramona Vogt +7
Excited nuclear fragments are emitted during nuclear fission. The de-excitation of these fission fragments takes place as sequential emission of neutrons followed by photons. A cor…