Masters Theses

Keywords and Phrases

NJOY; Photon Transport

Abstract

"The purpose of this work was to explore the creation of photoatomic multi-group cross section libraries to be used with a software package DOCTORS (Discrete Ordinates Computed TOmography and Radiography Simulator). This software solves the linear Boltzmann equation using the discrete ordinates method [1]. To create these libraries, NJOY2016 was used, creating both fine and broad energy multi-group cross section files. The cross section's accuracy was tested against an equivalent Monte Carlo simulation using MCNP6.

Two simulation geometries were used. The first, a cylindrical water phantom with a single source projection placed in front, simulating an X-ray radiography. The second used the same water phantom with 16 cone beam sources placed evenly around the phantom to simulate a computed tomography (CT) scan. The accuracy of the fine energy multi-group cross sections when used in DOCTORS has been verified. The accuracy of the broad energy multi-group cross sections when used in DOCTORS shows that more work must be done before they can be used reliably"--Abstract, page iii.

Advisor(s)

Liu, Xin (Mining & Nuclear Engr)

Committee Member(s)

Lee, Hyoung-Koo
Alajo, Ayodeji Babatunde

Department(s)

Nuclear Engineering and Radiation Science

Degree Name

M.S. in Nuclear Engineering

Sponsor(s)

U.S. Nuclear Regulatory Commission

Comments

Nuclear Regulatory Commission funded this work through the NRC Grant No. NRC-HQ-13-G-38-0026.

Publisher

Missouri University of Science and Technology

Publication Date

Summer 2018

Pagination

ix, 48 pages

Note about bibliography

Includes bibliographical references (pages 45-47).

Rights

© 2018 Steven Michael Wagstaff, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 11400

Electronic OCLC #

1051223045

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