Reactor Unit Control System for
Space and Terrestrial Applications
Zeev Shayer
Summary: A reactor unit control system for small space reactors
Description: A novel reactor unit control system that is based on changing the reflector
properties for small space reactors has been developed. The control system includes
rotating reflectors or control drums that are formed from primary reflector material and a
secondary reflector disposed on a selected surface. The reflective neutron flux is regulated
by rotating the reflector(s) with respect to the reactor core; increasing the reflective
neutron flux when the primary reflector is disposed towards the reactor core and
decreasing the reflective neutron flux when the secondary neutron reflector is disposed
proximate the reactor core. The control system solves the control reactivity problem in a
more efficient way, with less required power, and better safety margins that current
methods. Furthermore, it does not require a cooling system such as that required for
traditional designs that using B4C sheet within the drum rotating control systems.
Main Advantages of this Invention
 Does not require a cooling system
 Required lower power
 Improved safety margins
Potential Areas of Application
 Space and terrestrial applications
ID number: 11021
Intel ectual Property Status: US utility patent pending (application 14/682,679)
Opportunity: We are seeking an exclusive or non-exclusive licensee for marketing,
manufacturing, and sale of this technology.
For more information contact:
William Vaughan, Director of Technology Transfer
Colorado School of Mines, 1500 Illinois Street, Guggenheim Hall Suite 314, Golden, CO 80401
Phone: 303-384-2555; e-mail: