公开(公告)号：US20200025969A1

公开(公告)日：2020-01-23

申请号：US16296588

申请日：2019-03-08

Applicant: University of Florida Research Foundation, Inc.

Inventor： Kelly A. Jordan ,  Jason M. Lewis

IPC: G01V5/00

Abstract: The detection and assay of fissionable material is carried out on a container known or suspected to have a material with at least one fissionable isotope. The material is irradiated with neutrons from two or more different neutron sources. The fission rates inducted at each irradiation energy are acquired with at least one neutron detector. A multispectral active neutron interrogation analysis (MANIA) is carried out to compare the detected fission rates of the neutron spectra with calculated fission rates where an iterative algorithm is carried out on a system of linear equations to solve for the isotopic composition of one or more isotopes to determine the presence, identity, and quantities of fissionable isotopes in said container.

公开(公告)号：US11079512B2

公开(公告)日：2021-08-03

申请号：US16296588

申请日：2019-03-08

Applicant: University of Florida Research Foundation, Inc.

Inventor： Kelly A. Jordan ,  Jason M. Lewis

IPC: G01V5/00

Abstract: The detection and assay of fissionable material is carried out on a container known or suspected to have a material with at least one fissionable isotope. The material is irradiated with neutrons from two or more different neutron sources. The fission rates inducted at each irradiation energy are acquired with at least one neutron detector. A multispectral active neutron interrogation analysis (MANIA) is carried out to compare the detected fission rates of the neutron spectra with calculated fission rates where an iterative algorithm is carried out on a system of linear equations to solve for the isotopic composition of one or more isotopes to determine the presence, identity, and quantities of fissionable isotopes in said container.

公开(公告)号：US10247847B2

公开(公告)日：2019-04-02

申请号：US15111920

申请日：2015-01-16

Applicant: University of Florida Research Foundation, Inc.

Inventor： Kelly A. Jordan ,  Jason M. Lewis

IPC: G01V5/00

Abstract: The detection and assay of fissionable material is carried out on a container known or suspected to have a material with at least one fissionable isotope. The material is irradiated with neutrons from two or more different neutron sources. The fission rates inducted at each irradiation energy are acquired with at least one neutron detector. A multispectral active neutron interrogation analysis (MANIA) is carried out to compare the detected fission rates of the neutron spectra with calculated fission rates where an iterative algorithm is carried out on a system of linear equations to solve for the isotopic composition of one or more isotopes to determine the presence, identity, and quantities of fissionable isotopes in said container.

公开(公告)号：US20160334536A1

公开(公告)日：2016-11-17

申请号：US15111920

申请日：2015-01-16

Applicant: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.

Inventor： Kelly A. Jordan ,  Jason M. Lewis

IPC: G01V5/00

CPC classification number: G01V5/0091

Abstract: The detection and assay of fissionable material is carried out on a container known or suspected to have a material with at least one fissionable isotope. The material is irradiated with neutrons from two or more different neutron sources. The fission rates inducted at each irradiation energy are acquired with at least one neutron detector. A multispectral active neutron interrogation analysis (MANIA) is carried out to compare the detected fission rates of the neutron spectra with calculated fission rates where an iterative algorithm is carried out on a system of linear equations to solve for the isotopic composition of one or more isotopes to determine the presence, identity, and quantities of fissionable isotopes in said container.

Abstract translation: 可裂变材料的检测和测定在已知或怀疑具有至少一种可裂变同位素的材料的容器上进行。 材料用来自两个或更多个不同中子源的中子照射。 用至少一个中子检测器获取在每个照射能下引入的裂变速率。 进行多光谱活性中子询问分析（MANIA）以将所检测到的中子谱的裂变率与计算的裂变率进行比较，其中对线性方程组进行迭代算法以求解一种或多种同位素的同位素组成 以确定所述容器中的可裂变同位素的存在，身份和数量。