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Reactor Nuclear Parameters

COURSE NO: N04-001
COURSE PROVIDER: Gilbert Gedeon, P.E.
Reactor Nuclear Parameters
Course Highlights

This online engineering PDH course presents specific parameters of a nuclear reactor including the neutron life cycle, reactivity and reactivity coefficients, neutron poisons, and control rods:

  • Neutron Life Cycle is the series of steps that fission neutrons go through as they slow to thermal energies and are absorbed in the reactor.
  • Reactivity is a measure of the departure of a reactor from criticality. Reactivity coefficients are useful in quantifying the reactivity change that will occur due to the change in a physical property such as the temperature of the moderator or fuel.
  • Neutron Poisons are absorbing materials intentionally designed into the reactor for specific purposes including remove neutrons from the reactor.
  • Control Rods are made of neutron absorbing materials and used to adjust the reactivity of the core.


This 4 PDH online course is applicable to industrial and nuclear engineers, construction and design personnel, technical staff and facility operators who are interested in gaining a better understanding of the nuclear parameters of a rector.

Learning Objectives

This PE continuing education course is intended to provide you with the following specific knowledge and skills:

  • Understanding the neutron life cycle
  • Knowing reactivity and reactivity coefficients
  • Learning about neutron poisons, xenon, samarium and other fission product poisons
  • Understanding the function of control rods
Course Document

In this professional engineering CEU course, you need to review Module 3, “Reactor Theory (Nuclear Parameters)” of the Department of Energy Publication DOE-HDBK-1019/2-93, “Nuclear Physics and Reactor Theory”.

To view, print and study the course document, please click on the following link(s):
Reactor Nuclear Parameters (879 KB)
Course Quiz
Once you complete your course review, you need to take a multiple-choice quiz consisting of twenty (20) questions to earn 4 PDH credits. The quiz will be based on Module 3 of this DOE publication.


The minimum passing score is 70%. There is no time limit on the quiz, and you can take it multiple times until you pass at no additional cost.
Certificate of Completion

Upon successful completion of the quiz, print your Certificate of Completion instantly. (Note: if you are paying by check or money order, you will be able to print it after we receive your payment.) For your convenience, we will also email it to you. Please note that you can log in to your account at any time to access and print your Certificate of Completion.

To buy the course and take the quiz, please click on: