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BS EN IEC 60522-1:2021

BS EN IEC 60522-1:2021

$142.49

Medical electrical equipment. Diagnostic X-rays – Determination of quality equivalent filtration and permanent filtration

Published By Publication Date Number of Pages
BSI 2021 26
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IEC 60522-1:2020 applies to X-RAY TUBE ASSEMBLIES and to FILTERING MATERIAL, in medical diagnostic applications up to a HIGH VOLTAGE of 150 kV. For HIGH VOLTAGES greater than 50 kV, this document applies to X-RAY TUBE ASSEMBLIES with tungsten or tungsten-alloy TARGETS only. IEC 60522-1:2021 defines the concept of PERMANENT FILTRATION of X-RAY TUBE ASSEMBLIES, and it defines the term FILTERING MATERIAL. Methods are given to determine the PERMANENT FILTRATION of an X-RAY TUBE ASSEMBLY and for determining the QUALITY EQUIVALENT FILTRATION of FILTERING MATERIALS. It contains requirements for statements of compliance of X-RAY TUBE ASSEMBLIES in ACCOMPANYING DOCUMENTS and for markings on X-RAY TUBE ASSEMBLIES, and for indications and statements of compliance of FILTERING MATERIAL. IEC 60522-1:2020 cancels and replaces the second edition of IEC 60522 published in 1999. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the IEC 60522:1999: The scope of the IEC 60522-1 has been changed with respect to second edition of the IEC 60522 as follows: a) As radiotherapy standards do not reference IEC 60522, radiotherapy is no longer in the scope. Consequently, the HIGH VOLTAGE is limited to 150 kV, and copper is no longer used as reference material. b) While IEC 60522:1999 covers only PERMANENT FILTRATION, IEC 60522-1 also covers quite generally ā€œmaterial filtering the X-RAY BEAM incident on the PATIENTā€. This concerns materials like ADDED FILTERS, table-tops, a breast COMPRESSION DEVICE, and materials in the BEAM LIMITING DEVICE. For these materials the defined term FILTERING MATERIAL has been introduced. c) In order to provide technical and scientific background and rationale on the content of IEC 60522-1, IEC TR 60522-2 was introduced.

PDF Catalog

PDF Pages PDF Title
2 undefined
5 Annex ZA(normative)Normative references to international publications with their corresponding European publications
7 English
CONTENTS
8 FOREWORD
10 INTRODUCTION
11 1 Scope
2 Normative references
12 3 Terms and definitions
4 Determination of quality equivalent filtration
4.1 Alignment of X-ray tube assemblies and of the filters
4.2 Generation of the X-ray beam for the determination
13 4.3 Requirements for radiation detector
4.4 Composition of reference material
4.5 Determination of permanent filtration
4.5.1 Guideline
14 4.5.2 Direct determination of permanent filtration
Figures
Figure 1 ā€“ Measurement steps for determining the permanent filtration of an X-ray tube assembly using a reference X-ray tube assembly
Table 1 ā€“ Overview for the selection of methods for the determination of permanent filtration
15 4.5.3 Indirect determination of permanent filtration ā€“ general case
16 Figure 2 ā€“ Measurement steps for determining the quality equivalent filtrationof a filter ā€“ general case
17 4.5.4 Indirect determination of permanent filtration ā€“ special case
Figure 3 ā€“ Measurement steps for determining the quality equivalent filtrationof a filter ā€“ special case
18 4.6 Determination of the quality equivalent filtration of a filtering material or of a stack of filtering materials
4.6.1 Choice of target angle
4.6.2 Determination method
19 Figure 4 ā€“ Measurement steps for determining the quality equivalent filtrationof filtering material
20 4.7 X-ray simulations
4.8 Compliance test
5 Indications and statements of quality equivalent filtration
5.1 Presentation of quality equivalent filtration values
5.2 Indications and statements of permanent filtration
21 5.3 Indications and statements of filtering materials
22 Annex A (informative)Historical background
A.1 General
A.2 The first edition of IEC 60522 (1976)
A.3 The second edition of IEC 60522 (1999)
A.4 The first edition of IEC 60522-1 (2020)
23 Bibliography
24 Index of defined terms

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BS EN IEC 60522-1:2021
$142.49