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BS EN 62220-1-3:2008
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The latest, up-to-date edition.
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Medical electrical equipment. Characteristics of digital X-ray imaging devices Determination of the detective quantum efficiency. Detectors used in dynamic imaging
Hardcopy , PDF
English
30-04-2009
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
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