Masters Theses


"Solid control rods and their movement through a reactor core present problems inherent in any moving machinery. The problems of binding, wear, and noise have to be dealt with in the usage of a solid control rod system. Therefore, an alternate system that eliminates or minimizes these problems would lower maintenance costs, extend the lifetime of the control system, and produce safer operating conditions.

This thesis presents a control system that has no moving parts inside the reactor core. The system is based upon a neutron-absorbing fluid containe􀁠d in hollow tubes in the reactor core. The fluid level is operated and controlled by an inert gas system. The theoretical replacement of the control rods in the University of Missouri--Rolla Reactor dictated the detailed design of the system. A full scale plexiglass model was constructed to the specifications of this design.

The dynamic response of the system and the control and detection of the fluid level were the focus of the analysis done in the thesis. Several of the nuclear properties of the system and some of the heat transfer characteristics were also analyzed in this paper"--Abstract, page ii.


Culp, Archie W., Jr.

Committee Member(s)

Sanders, Robert C.
Edwards, D. R.


Nuclear Engineering and Radiation Science

Degree Name

M.S. in Nuclear Engineering


University of Missouri--Rolla

Publication Date



vi, 75 pages

Note about bibliography

Includes bibliographical references (page 48).


© 1977 Billy Roger McPherson, All rights reserved.

Document Type

Thesis - Open Access

File Type




Thesis Number

T 4347

Print OCLC #