Homogenization effects on neutron flux Monte Carlo calculations for an accelerator driven system

Author

Jamie Marlene Ferrero

Abstract

"As part of a DOE NEER grant, this work covers the computation of neutron flux by the Monte Carlo Method for an Accelerator Driven System (ADS). Specifically, homogenization effects were studied by using three models of different levels of homogenization. The most detailed model includes individual fuel rods of an assembly, the intermediate model consists of homogenized assemblies, and the most homogeneous model contains only homogenized regions. The basic axial design of the three models, including a bumup distribution in the fuel, is kept the same in all three models.

Several trends are observed in the calculated neutron flux for the three models, fuel compositions, and axial tally locations: (a) as the level of homogenization increases among the models, the neutron flux increases, (b) the flux seen at the ends of the assemblies results mostly from the spallation neutron source, but there is still a contribution from spontaneous fission, (n, 2n) reactions, and (a, n) reactions, (c) there is little difference in the flux with and without TRU in all models, and (d) the study shows that there is not a significant difference in the computer neutron flux among the three models"-- Abstract, p. iii

Advisor(s)

Tsoulfanidis, Nicholas

Committee Member(s)

Hall, Leon M., 1946-
Tokuhiro, Akira

Department(s)

Nuclear Engineering and Radiation Science

Degree Name

M.S. in Nuclear Engineering

Comments

System requirements: Roxio software with Drag-To-Disc feature.

Publisher

University of Missouri--Rolla

Publication Date

Spring 2004

Pagination

ix, 107 pages, CD-ROM

Note about bibliography

Includes bibliographical references (pages 105-106)

Rights

© 2004 Jamie Marlene Ferrero, All rights reserved.

Document Type

Thesis - Restricted Access

File Type

text

Language

English

Subject Headings

Neutron flux -- MeasurementParticle accelerators -- Control systemsMonte Carlo method

Thesis Number

T 8468

Print OCLC #

56479634

Recommended Citation

Ferrero, Jamie Marlene, "Homogenization effects on neutron flux Monte Carlo calculations for an accelerator driven system" (2004). Masters Theses. 2501.
https://scholarsmine.mst.edu/masters_theses/2501