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Title: Dual isotope notch observer for isotope identification, assay and imaging with mono-energetic gamma-ray sources

Abstract

A dual isotope notch observer for isotope identification, assay and imaging with mono-energetic gamma-ray sources includes a detector arrangement consists of three detectors downstream from the object under observation. The latter detector, which operates as a beam monitor, is an integrating detector that monitors the total beam power arriving at its surface. The first detector and the middle detector each include an integrating detector surrounding a foil. The foils of these two detectors are made of the same atomic material, but each foil is a different isotope, e.g., the first foil may comprise U235 and second foil may comprise U238. The integrating detectors surrounding these pieces of foil measure the total power scattered from the foil and can be similar in composition to the final beam monitor. Non-resonant photons will, after calibration, scatter equally from both foils.

Inventors:
Issue Date:
Research Org.:
LLNL (Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States))
Sponsoring Org.:
USDOE
OSTI Identifier:
1083213
Patent Number(s):
8,369,480
Application Number:
12/506,639
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA) LLNL
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats

Barty, Christopher P.J. Dual isotope notch observer for isotope identification, assay and imaging with mono-energetic gamma-ray sources. United States: N. p., 2013. Web.
Barty, Christopher P.J. Dual isotope notch observer for isotope identification, assay and imaging with mono-energetic gamma-ray sources. United States.
Barty, Christopher P.J. Tue . "Dual isotope notch observer for isotope identification, assay and imaging with mono-energetic gamma-ray sources". United States. https://www.osti.gov/servlets/purl/1083213.
@article{osti_1083213,
title = {Dual isotope notch observer for isotope identification, assay and imaging with mono-energetic gamma-ray sources},
author = {Barty, Christopher P.J.},
abstractNote = {A dual isotope notch observer for isotope identification, assay and imaging with mono-energetic gamma-ray sources includes a detector arrangement consists of three detectors downstream from the object under observation. The latter detector, which operates as a beam monitor, is an integrating detector that monitors the total beam power arriving at its surface. The first detector and the middle detector each include an integrating detector surrounding a foil. The foils of these two detectors are made of the same atomic material, but each foil is a different isotope, e.g., the first foil may comprise U235 and second foil may comprise U238. The integrating detectors surrounding these pieces of foil measure the total power scattered from the foil and can be similar in composition to the final beam monitor. Non-resonant photons will, after calibration, scatter equally from both foils.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {2}
}

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