Masters Theses

Abstract

"The construction of a multi-threshold foil for fast neutron flux measurements is investigated. The factors governing the selection of the materials are the energy response of the given reactor, the half-life of the daughter, the prominent gamma ray emitted during decays, the power level of the reactor, the availability of adequate cross section data, and the alloying properties of the composite foil. A ternary system was chosen as a compromise between the difficulty of fabrication and the amount of information gained from one foil. The particular system chosen was In- P- Fe. The threshold reactions of these elements are In¹¹⁵ (n,n')115m at 0.40 Mev , P³¹ (n,p) Si³¹ at 2. 40 Mev, Fe⁵⁴(n, p) Mn⁵⁴ at 4.30 Mev, and Fe⁵⁶ (n,p) Mn⁵⁶ at 5.00 Mev. This foil is used to illustrate the feasibility of the construction of a multi-threshold foil by using it to make preliminary measurements of the fast flux"--Abstract, page ii.

Advisor(s)

Edwards, D. R.

Committee Member(s)

Rivers, Jack L.
Bolon, Albert E., 1939-2006
Hardtke, Fred C.

Department(s)

Physics

Degree Name

M.S. in Physics

Sponsor(s)

National Science Foundation (U.S.)

Publisher

University of Missouri at Rolla

Publication Date

1966

Pagination

vii, 34 pages

Note about bibliography

Includes bibliographical references (pages 32-33).

Rights

© 1966 Michael Henry Holkenbrink, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Subject Headings

Neutron flux -- MeasurementNuclear reactors -- Shielding (Radiation)

Thesis Number

T 1896

Print OCLC #

5976272

Electronic OCLC #

895059966

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