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I.S. EN 62220-1:2004

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

MEDICAL ELECTRICAL EQUIPMENT - CHARACTERISTICS OF DIGITAL X-RAY IMAGING DEVICES - PART 1: DETERMINATION OF THE DETECTIVE QUANTUM EFFICIENCY
Available format(s)

Hardcopy , PDF

Superseded date

07-02-2015

Language(s)

English

Published date

01-01-2004

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For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.

Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terminology and definitions
4 Requirements
  4.1 Operating conditions
  4.2 X-RAY EQUIPMENT
  4.3 RADIATION QUALITY
  4.4 TEST DEVICE
  4.5 Geometry
  4.6 IRRADIATION conditions
      4.6.1 General conditions
      4.6.2 Exposure measurement
      4.6.3 Avoidance of LAG EFFECTS
      4.6.4 IRRADIATION to obtain the CONVERSION FUNCTION
      4.6.5 IRRADIATION for determination of the NOISE POWER
            SPECTRUM
      4.6.6 IRRADIATION with TEST DEVICE in the RADIATION BEAM
5 Corrections of RAW DATA
6 Determination of the DETECTIVE QUANTUM EFFICIENCY
  6.1 Definition and formula of DQE(u,v)
  6.2 Parameters to be used for evaluation
  6.3 Determination of different parameters from the images
      6.3.1 Linearization of data
      6.3.2 The NOISE POWER SPECTRUM (NPS)
      6.3.3 Determination of the MODULATION TRANSFER FUNCTION
            (MTF)
7 Format of conformance statement
8 Accuracy
Annex A (normative) Determination of LAG EFFECTS
      A.1 Test of additive LAG EFFECTS
      A.2 Test of multiplicative LAG EFFECTS
Annex B (normative) Terminology - Index of defined terms
Annex C (informative) Calculation of the input NOISE POWER
                       SPECTRUM
Annex ZA (normative) Normative references to international
                       publications with their corresponding
                       European publications
Bibliography

Describes the method for the determination of the detective quantum efficiency (DQE) of digital X-ray imaging devices as a function of exposure and of spatial frequency for the working conditions in the range of the medical application as specified by the manufacturer.

DocumentType
Standard
Pages
41
PublisherName
National Standards Authority of Ireland
Status
Superseded
SupersededBy

Standards Relationship
NBN EN 62220-1 : 2005 Identical
NF EN 62220-1 : 2005 Identical
UNE-EN 62220-1:2004 Identical
DIN EN 62220-1:2005-01 Identical
IEC 62220-1:2003 Identical
EN 62220-1:2004 Identical
BS EN 62220-1:2004 Identical

ISO 12232:2006 Photography Digital still cameras Determination of exposure index, ISO speed ratings, standard output sensitivity, and recommended exposure index
IEC 60601-2-7:1998 Medical electrical equipment - Part 2-7: Particular requirements for the safety of high-voltage generators of diagnostic X-ray generators
IEC 60336:2005 Medical electrical equipment - X-ray tube assemblies for medical diagnosis - Characteristics of focal spots
EN 60601-2-7:1998 Medical electrical equipment - Part 2-7: Particular requirements for the safety of high-voltage generators of diagnostic X-ray generators
ISO 15529:2010 Optics and photonics Optical transfer function Principles of measurement of modulation transfer function (MTF) of sampled imaging systems
EN 61267:2006 Medical diagnostic X-ray equipment - Radiation conditions for use in the determination of characteristics
IEC TR 60788:2004 Medical electrical equipment - Glossary of defined terms
ISO 12233:2017 Photography — Electronic still picture imaging — Resolution and spatial frequency responses
EN 60336:2005 Medical electrical equipment - X-ray tube assemblies for medical diagnosis - Characteristics of focal spots
IEC 61262-5:1994 Medical electrical equipment - Characteristics of electro-optical X-ray image intensifiers - Part 5: Determination of the detective quantum efficiency
HD 501 : 200S1 MEDICAL RADIOLOGY - TERMINOLOGY
IEC 61267:2005 Medical diagnostic X-ray equipment - Radiation conditions for use in the determination of characteristics

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