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IEC 62220-1-3 : 1.0

IEC 62220-1-3 : 1.0

MEDICAL ELECTRICAL EQUIPMENT - CHARACTERISTICS OF DIGITAL X-RAY IMAGING DEVICES - PART 1-3: DETERMINATION OF THE DETECTIVE QUANTUM EFFICIENCY - DETECTORS USED IN DYNAMIC IMAGING

International Electrotechnical Committee

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Table of Contents

FOREWORD<br>INTRODUCTION<br>1 Scope<br>2 Normative references<br>3 Terms and definitions<br>4 Requirements<br>&nbsp;&nbsp;4.1 Operating conditions<br>&nbsp;&nbsp;4.2 X-RAY EQUIPMENT<br>&nbsp;&nbsp;4.3 RADIATION QUALITY<br>&nbsp;&nbsp;4.4 TEST DEVICE<br>&nbsp;&nbsp;4.5 Geometry<br>&nbsp;&nbsp;4.6 IRRADIATION conditions<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.6.1 General conditions<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.6.2 AIR KERMA measurement<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.6.3 LAG EFFECTS<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.6.4 IRRADIATION to obtain the CONVERSION<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;FUNCTION<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.6.5 IRRADIATION for determination of the NOISE<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;POWER SPECTRUM and LAG EFFECTS<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.6.6 IRRADIATION with TEST DEVICE in the <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;RADIATION BEAM<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.6.7 Overview of all necessary IRRADIATIONS<br>5 Corrections of RAW DATA<br>6 Determination of the DETECTIVE QUANTUM EFFICIENCY<br>&nbsp;&nbsp;6.1 Definition and formula of DQE(u,v)<br>&nbsp;&nbsp;6.2 Parameters to be used for evaluation<br>&nbsp;&nbsp;6.3 Determination of different parameters from the images<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6.3.1 Linearization of data<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6.3.2 The LAG EFFECTS corrected NOISE POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;SPECTRUM (NPS)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6.3.3 Determination of the MODULATION TRANSFER<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;FUNCTION (MTF)<br>7 Format of conformance statement<br>8 Accuracy<br>Annex A (informative) - Determination of LAG EFFECTS<br>Annex B (informative) - Calculation of the input NOISE POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;SPECTRUM<br>Bibliography<br>Index of defined terms

Abstract

Describes the method for the determination of the DETECTIVE QUANTUM EFFICIENCY (DQE) of DIGITAL X-RAY IMAGING DEVICES as a function of AIR KERMA and of SPATIAL FREQUENCY for the working conditions in the range of the medical application as specified by the MANUFACTURER.

General Product Information

Document Type Standard
Status Current
Publisher International Electrotechnical Committee
Committee TC 62

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