Fluke Biomedical 57-402 - Manual (Page 5)

General Information
Introduction
1
1-1
Section 1
General Information
1.1 INTRODUCTION
CLEAR-Pb Compensation Filters are made of a lead-plastic material that is 30% lead by weight. Since
lead is an efficient absorber of x-rays, the filters will attenuate the x-ray beam. By varying the shape and
thickness of the filters, many combinations of filtering action can be achieved...from almost complete
attenuation to full penetration. (See Figure 1-1.)
Figure 1-1
Filters Attenuate X-ray Beam to Provide Even Exposure Throughout Image Area
Figure 2-2 Collimator with Filter Holder (57-426) and AP/PA Wedge (57-405) in Place