Spectroscopic radiography with monoenergetic neutrons for homeland security applications
Name
969775659-MIT.pdf
Description
Full printable version
Size
3.82 MB
Format
Adobe PDF
Checksum (MD5)
95a6268a869c84444f4a0867b840f2bf
Author(s)
Rahon, Jill Marie
Advisor(s)
Areg Danagoulian and Richard Lanza.
Date Issued
2016
Publisher
Massachusetts Institute of Technology
Abstract
In this thesis, I discuss the hypothesis, testing, and applications of a radiographic system which uses the spectral analysis of fast neutrons generated in the 11B(d,n[gamma])12C reaction. Neutron radiography in current use systems employs a total count analysis to reconstruct hydrogenous content in scanned cargoes. This research presents a technique which leverages the large differences in the energy dependence of neutron interaction cross sections between hydrogenous materials and those of higher atomic number. These dependencies result in characteristic spectral details of hydrogenous materials which may be analyzed to classify type and areal density of cargo contents. The studies presented here demonstrate that this technique is feasible and suited to the application of national security port monitoring at industry-requisite speeds and cargo dimensions.
Description
Thesis: S.M., Massachusetts Institute of Technology, Department of Nuclear Science and Engineering, 2016.
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 68-71).
Subjects
Nuclear Science and Engineering.
MIT Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Terms of Use
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