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Title: High-Energy Neutron Imaging at LLNL

Abstract

LLNL is currently engaged in the development of high-energy (10 MeV) neutron imaging technology to complement existing x-ray diagnostic tools in U.S. Department of Energy (DOE) nondestructive evaluation (NDE) applications. Our goal is to develop and deploy a nonintrusive imaging system capable of detecting cubic-mm-scale voids, cracks or other significant structural defects in heavily-shielded low-Z materials within very thick objects. The final production-line system that we envision will be relatively compact (suitable for use in existing facilities within the DOE complex) and capable of acquiring both radiographic and tomographic (CT) images. In this paper, the design status of the high-intensity, accelerator-driven neutron source and large-format imaging detector associated with the system will be discussed and results from one recent neutron imaging experiment conducted at the Ohio University Accelerator Laboratory (OUAL) in Athens, OH will be presented.

Authors:
; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
908083
Report Number(s):
UCRL-CONF-230835
TRN: US0703608
DOE Contract Number:
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: Presented at: 8th World Conference on Neutron Radiography, Gaithersburg, MD, United States, Oct 16 - Oct 19, 2006
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ACCELERATORS; DEFECTS; DESIGN; EVALUATION; LAWRENCE LIVERMORE NATIONAL LABORATORY; NEUTRON RADIOGRAPHY; NEUTRON SOURCES; NEUTRONS; HIGH ENERGY PHYSICS

Citation Formats

Hall, J, Rusnak, B, and Fitsos, P. High-Energy Neutron Imaging at LLNL. United States: N. p., 2007. Web.
Hall, J, Rusnak, B, & Fitsos, P. High-Energy Neutron Imaging at LLNL. United States.
Hall, J, Rusnak, B, and Fitsos, P. Sun . "High-Energy Neutron Imaging at LLNL". United States. doi:. https://www.osti.gov/servlets/purl/908083.
@article{osti_908083,
title = {High-Energy Neutron Imaging at LLNL},
author = {Hall, J and Rusnak, B and Fitsos, P},
abstractNote = {LLNL is currently engaged in the development of high-energy (10 MeV) neutron imaging technology to complement existing x-ray diagnostic tools in U.S. Department of Energy (DOE) nondestructive evaluation (NDE) applications. Our goal is to develop and deploy a nonintrusive imaging system capable of detecting cubic-mm-scale voids, cracks or other significant structural defects in heavily-shielded low-Z materials within very thick objects. The final production-line system that we envision will be relatively compact (suitable for use in existing facilities within the DOE complex) and capable of acquiring both radiographic and tomographic (CT) images. In this paper, the design status of the high-intensity, accelerator-driven neutron source and large-format imaging detector associated with the system will be discussed and results from one recent neutron imaging experiment conducted at the Ohio University Accelerator Laboratory (OUAL) in Athens, OH will be presented.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun May 06 00:00:00 EDT 2007},
month = {Sun May 06 00:00:00 EDT 2007}
}

Conference:
Other availability
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  • We are proceeding with the development of a high-energy (10 MeV) neutron imaging system for use as an inspection tool in nuclear stockpile stewardship applications. Our goal is to develop and deploy an imaging system capable of detecting cubic-mm-scale voids, cracks or other significant structural defects in heavily-shielded low-Z materials within nuclear device components. The final production-line system will be relatively compact (suitable for use in existing or proposed facilities within the DOE complex) and capable of acquiring both radiographic and tomographic (CT) images. In this report, we will review our programmatic accomplishments to date, highlighting recent (FY06) progress onmore » engineering and technology development issues related to the proposed imaging system. We will also discuss our preliminary project plan for FY07, including engineering initiatives, proposed radiation damage experiments (neutrons and x rays) and potential options for conducting classified neutron imaging experiments at LLNL.« less
  • We are proceeding with the development of a high-energy (10 MeV) neutron imaging system for use as an inspection tool in nuclear stockpile stewardship applications. Our goal is to develop and deploy an imaging system capable of detecting cubic-mm-scale voids, cracks or other significant structural defects in heavily-shielded low-Z materials within nuclear device components. The final production-line system will be relatively compact (suitable for use in existing facilities within the DOE complex) and capable of acquiring both radiographic and tomographic (CT) images. In this report, we will review our recent programmatic accomplishments, focusing primarily on progress made in FY04. Themore » design status of the high-intensity, accelerator-driven neutron source and large-format imaging detector associated with the system will be discussed and results from a recent high-energy neutron imaging experiment conducted at the Ohio University Accelerator Laboratory (OUAL) will also be presented.« less
  • We are currently developing a high-energy (10 - 15 MeV) neutron imaging system for use in NDE applications. Our goal is to develop an imaging system capable of detecting cubic-mm-scale voids or other structural defects in heavily-shielded low-Z materials within thick sealed objects. The system will be relatively compact (suitable for use in a small laboratory) and capable of acquiring tomographic image data sets. The design of a prototype imaging detector and multi-axis staging system will be discussed and selected results from recent imaging experiments will be presented. The development of an intense, accelerator-driven neutron source suitable for use withmore » the imaging system will also be discussed. Keywords: neutron imaging, neutron radiography, computed tomography, non-destructive inspection, neutron sources« less
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