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BS EN 62494-1:2008

BS EN 62494-1:2008

Current

Current

The latest, up-to-date edition.

Medical electrical equipment. Exposure index of digital X-ray imaging systems Definitions and requirements for general radiography

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

03-31-2009

Publisher

British Standards Institution

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
  4.1 Creation of ORIGINAL DATA
  4.2 Determination of the RELEVANT IMAGE REGION and the
      VALUE OF INTEREST
  4.3 Requirements for the EXPOSURE INDEX
  4.4 Calibration of the EXPOSURE INDEX
  4.5 Determination of the CALIBRATION FUNCTION
  4.6 Determination of the INVERSE CALIBRATION FUNCTION
  4.7 Requirements for the DEVIATION INDEX
Annex A (informative) - Details on the rationale, properties
                        and use of the EXPOSURE INDEX
Annex B (informative) - Details on the rationale, properties
                        and use of the DEVIATION INDEX
Annex C (normative) - Beam conditions to be used for calibration
Bibliography
Terminology - Index of defined terms
Annex ZA (normative) - Normative references to international
         publications with their corresponding European
         publications

Describes definitions and requirements for the EXPOSURE INDEX of images acquired with DIGITAL X-RAY IMAGING SYSTEMS.

IEC 62494-1:2008 specifies definitions and requirements for the exposure index of images acquired with digital X-ray imaging systems. IEC 62494-1:2008 is applicable to digital X-ray imaging systems used in general radiography for producing projection X-ray images for general applications, such as, but not exclusively:
- computed radiography (CR) systems based on stimulable phosphors;
- flat-panel detector based systems;
- charge-coupled device (CCD) based systems.
Image intensifier based systems and systems for mammographic or dental application are not covered in this first edition. IEC 62494-1:2008 defines the exposure index only for images generated with a single irradiation event. Images generated from multiple irradiations (e.g., tomosynthetic or dual-energy images, multiple views on a single CR plate) are not covered.

Committee
CH/62/2
DevelopmentNote
Supersedes 07/30156446 DC. (03/2009)
DocumentType
Standard
Pages
26
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
IEC 62494-1:2008 Identical
EN 62494-1:2008 Identical

ISO/IEC Guide 98:1993 Guide to the expression of uncertainty in measurement (GUM)
IEC 60601-1:2005+AMD1:2012 CSV Medical electrical equipment - Part 1: General requirements for basic safety and essential performance
IEC TR 60788:2004 Medical electrical equipment - Glossary of defined terms
IEC 62220-1-2:2007 Medical electrical equipment - Characteristics of digital X-ray imaging devices - Part 1-2: Determination of the detective quantum efficiency - Detectors used in mammography
IEC 62220-1:2003 Medical electrical equipment - Characteristics of digital X-ray imaging devices - Part 1: Determination of the detective quantum efficiency
ISO 9236-1:2004 Photography Sensitometry of screen/film systems for medical radiography Part 1: Determination of sensitometric curve shape, speed and average gradient
IEC 60601-2-43:2010+AMD1:2017 CSV Medical electrical equipment - Part 2-43: Particular requirements for the basic safety and essential performance of X-ray equipment for interventional procedures

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Hardcopy - English
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