Module Introduction - hdbk1130cn20259

DOE-HDBK-1130-98

MODULE INTRODUCTION

A. Self Introduction

Name

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Background

B. Module Overview

This module is designed to inform the worker about radioactive contamination and discuss

methods used to control the spread of contamination.

C. Objectives Review

D. Introduction

Contamination control is one of the important aspects of radiological protection. Using proper

contamination control practices helps to ensure a safe working environment. It is important

for all employees to recognize potential sources of contamination and to use appropriate

contamination control methods.

II.

MODULE OUTLINE

A. Comparison of Ionizing Radiation and Radioactive Contamination

Ionizing radiation

Energy (particles or rays) emitted from radioactive atoms or generated from machines

such as X-ray machines that can cause ionization (e.g., gamma rays, X rays, beta

particles, and other particles capable of ionizing atoms).

Radioactive contamination

Radioactive material is material that contains radioactive atoms. When radioactive

material is properly contained, it still emits radiation and may be an external dose hazard,

but it is not a contamination hazard. When radioactive material escapes its container, it is

then referred to as radioactive contamination.

Radiation is energy; contamination is a material.

B. Types of Contamination

Radioactive contamination can be fixed, removable, or airborne.

Fixed contamination is contamination that cannot be easily removed from surfaces.

It cannot be removed by casual contact.