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Title: Nuclear Material Characterization and Imaging using fast neutrons.

Abstract

Abstract not provided.

Authors:
Publication Date:
Research Org.:
Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1373220
Report Number(s):
SAND2016-7181PE
646096
DOE Contract Number:
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Proposed for presentation at the 2016 NSSC Summer School in Nuclear Analytical Techniques held July 13-19, 2016 in Davis, CA.
Country of Publication:
United States
Language:
English

Citation Formats

Marleau, Peter. Nuclear Material Characterization and Imaging using fast neutrons.. United States: N. p., 2016. Web.
Marleau, Peter. Nuclear Material Characterization and Imaging using fast neutrons.. United States.
Marleau, Peter. 2016. "Nuclear Material Characterization and Imaging using fast neutrons.". United States. doi:. https://www.osti.gov/servlets/purl/1373220.
@article{osti_1373220,
title = {Nuclear Material Characterization and Imaging using fast neutrons.},
author = {Marleau, Peter},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month = 7
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

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  • This conference is broken down into five sessions. Session One on scintillating fiber technology and applications includes papers on the glasses used in scintillating fiber detectors and on the applications to the detection of fast neutrons and gamma rays. Session Two starts with a description of a new method for generating monochromatic and tunable X rays and gamma rays, using a standing wave of laser light to act as a very-high-period undulator for an electron storage ring. This is followed by a review of work in tomographic imaging using thermal neutrons and discusses the theory and limitations of the methodmore » as well as the applications. Subsequent papers subdivide into two general groups: The first covers generation or radiation (flash X rays, associated particle production of neutrons, and fast neutrons), while a second group is concerned with applications using neutrons and X rays (coating density measurements, materials characterization for planetary probes, fast CT for real-time tomographic imaging of composites). The sessions on thermal neutron imaging detectors start with a survey of the fundamental principles of position-sensitive detection of slow neutrons which are followed by a more detailed description of some of the various large-area systems in operation at a numbe of neutron facilities in the United States and Europe. In addition, there is a paper on some recent developments in a high-gain image intensifier coupled to a neutron scintillator for a hand-held neutron monitor with high spatial resolution. Session Five, New Detection Systems, brings together papers from scientists in different disciplines with various technical goals. This session contains papers on new and emerging detection systems, including such topics as resistive plate chambers, microstrip proportional counters, microchannel plates, charge transfer devices, and image plate detectors. The final session discusses the applications and sources of neutrons.« less
  • In the past year, a prototype fast-neutron coded-aperture imager has been developed that has sufficient efficiency and resolution to make the counting of warheads for possible future treaty confirmation scenarios via their fission-neutron emissions practical. The imager is constructed from custom-built pixelated liquid scintillator detectors. The liquid scintillator detectors enable neutron-gamma discrimination via pulse shape, and the pixelated construction enables a sufficient number of pixels for imaging in a compact detector with a manageable number of channels of readout electronics. The imager has been used to image neutron sources at ORNL, special nuclear material (SNM) sources at the Idaho Nationalmore » Laboratory (INL) Zero Power Physics Reactor (ZPPR) facility, and neutron source and shielding configurations at Sandia National Laboratories. This paper reports on the design and construction of the imager, characterization measurements with neutron sources at ORNL, and measurements with SNM at the INL ZPPR facility.« less
  • In the past year, a prototype fast-neutron coded-aperture imager has been developed that has sufficient efficiency and resolution to make the counting of warheads for possible future treaty confirmation scenarios via their fission-neutron emissions practical. The imager is constructed from custom-built pixelated liquid scintillator detectors. The liquid scintillator detectors enable neutron-gamma discrimination via pulse shape, and the pixelated construction enables a sufficient number of pixels for imaging in a compact detector with a manageable number of channels of readout electronics. The imager has been used to image neutron sources at ORNL, special nuclear material (SNM) sources at the Idaho Nationalmore » Laboratory (INL) Zero Power Physics Reactor (ZPPR) facility, and neutron source and shielding configurations at Sandia National Laboratories. This paper reports on the design and construction of the imager, characterization measurements with neutron sources at ORNL, and measurements with SNM at the INL ZPPR facility.« less