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BS EN IEC 60806:2022 2023

BS EN IEC 60806:2022 2023

$102.76

Determination of the maximum symmetrical radiation field of X-ray tube assemblies and X-ray source assemblies for medical diagnosis

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BSI 2023 20
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This International Standard is applicable to X-RAY SOURCE ASSEMBLIES and X-RAY TUBE ASSEMBLIES, for use in MEDICAL DIAGNOSTIC RADIOLOGY for techniques in which the X-RAY PATTERN will be received simultaneously in all points of the IMAGE RECEPTION AREA. This standard specifies a method for the determination of the greatest geometrically symmetrical RADIATION FIELD at a specified distance from the FOCAL SPOT for which the percentage AIR KERMA RATE along the major axes of the RADIATION FIELD does not fall below a permitted value. NOTE 1 AIR KERMA or AIR KERMA RATE are the only practical verifiable physical quantities for X-RAY SOURCES. X-RAY SOURCES must be tested independently from MEDICAL ELECTRICAL SYSTEMS. Conversion to the characteristics of the X-RAY IMAGE RECEPTOR used in a MEDICAL ELECTRICAL SYSTEM may be done in addition. In case multiple FOCAL SPOTS are not super-imposed, each focal spot has its own REFERENCE AXIS. Then the maximum RADIATION FIELD may be given for each FOCAL SPOT separately NOTE 2 The maximum symmetrical RADIATION FIELD may change from its initial value as the X-RAY TUBE ages through use. NOTE 3 If, for certain MEDICAL ELECTRICAL SYSTEMs the scope of IEC 60806 does not fit, then the special RADIATION FIELD requirements could be incorporated in the MEDICAL ELECTRICAL SYSTEM particular standard. However, a statement on the RADIATION FIELD while referring IEC 60806 is then no longer possible.

PDF Catalog

PDF Pages PDF Title
2 undefined
7 Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
9 English
CONTENTS
10 FOREWORD
12 1 Scope
2 Normative references
13 3 Terms and definitions
4 Maximum symmetrical radiation field
4.1 Orientation of the maximum symmetrical radiation field
Figures
Figure 1 – Orientation of the maximum symmetrical radiation field
14 4.2 Determination of the maximum symmetrical radiation field
5 Measurement of the distribution of air kerma rate
5.1 Detector
Figure 2 – Typical distribution of the relative air kerma rate alongthe major axis X of a maximum symmetrical radiation field
15 5.2 Measuring arrangement
Figure 3 – Measuring arrangement
16 5.3 Measuring conditions
6 Statement of compliance
Table 1 – Radiation quality
17 Annex A (informative)Background
A.1 Overview
A.2 Second edition
18 Index of defined terms

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BS EN IEC 60806:2022 2023
$102.76