I.S. EN 62220-1:2004
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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
Hardcopy , PDF
07-02-2015
English
01-01-2004
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
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