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Title

Radiographic Imaging, Part 5: Beam Limitation and Filtration ...COMING SOON! (0 credit hours)

Abstract

Beam Limitation and Filtration is the fifth of nine modules in the Radiographic Imaging program.

This module will help you understand why and when beam-limiting devices are used in radiography. You'll also learn about filtration and its many applications.

Author

Elsevier Inc.,

This module is adapted from Mosby's Radiography Online: Radiologic Physics, copyright © 2002 - 2004 by Elsevier (USA) reproduced by permission of Elsevier Inc. and edited for use as CE content by Denise Moore, Professor of Radiology, Sinclair Community College.

Objectives

On completion of this module, you should be able to do the following.

1. Define the important terms in the module.

2. Explain why beam-restricting devices are used.

3. Describe how aperture diaphragms, cones, and cylinders work.

4. Describe how collimators work and list three advantages of collimators over aperture diaphragms.

5. Explain why the x-ray beam is filtered and the standards of aluminum equivalence for measuring filtration.

6. Describe how compensating filters function and give two examples of when they are used.

Resources

For additional information on beam limitation and filtration, visit the following sites.

Fundamentals Health Physics Principles

Resource Manual for Compliance Test Parameters of Diagnostic X-ray Systems

X-ray Anomalous Scattering