I.S. EN 62220-1-3:2008

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms 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 AIR KERMA measurement
      4.6.3 LAG EFFECTS
      4.6.4 IRRADIATION to obtain the CONVERSION FUNCTION
      4.6.5 IRRADIATION for determination of the NOISE POWER
            SPECTRUM and LAG EFFECTS
      4.6.6 IRRADIATION with TEST DEVICE in the RADIATION BEAM
      4.6.7 Overview of all necessary IRRADIATIONS
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 LAG EFFECTS corrected NOISE POWER SPECTRUM (NPS)
      6.3.3 Determination of the MODULATION TRANSFER FUNCTION (MTF)
7 Format of conformance statement
8 Accuracy
Annex A (informative) Determination of LAG EFFECTS
Annex B (informative) Calculation of the input NOISE POWER SPECTRUM
Bibliography
Index of defined terms
Annex ZA (normative) Normative references to international
         publications with their corresponding European publications
Annex ZZ (informative) Coverage of Essential Requirements of EC
         Directives

Defines 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.