MEDICAL ELECTRICAL EQUIPMENT - CHARACTERISTICS OF ELECTRO-OPTICAL X-RAY IMAGE INTENSIFIERS - PART 5: DETERMINATION OF THE DETECTIVE QUANTUM EFFICIENCY
International Electrotechnical Committee
Foreword
Introduction
Clause
1 Scope
2 Normative reference
3 Terminology
3.1 Definitions
3.2 Degree of requirements and reading instructions
4 Requirements
4.1 Test set-up
4.2 X-RAY IMAGE INTENSIFIER - Operating conditions
4.3 Input radiation
4.4 TEST DEVICE
4.5 Measurement equipment
5 Determination of the DEFECTIVE QUANTUM EFFICIENCY
5.1 Preparation
5.2 Measurement
5.3 Correction
5.4 Determination
6 Presentation of the DETECTIVE QUANTUM EFFICIENCY
7 Statement of compliance
Figure 1 - Geometrical relationship of RADIATION SOURCE
and INPUT APERTURE
Annexes
A Terminology - Index of terms
B Representative test set-up
C Representative scintillation pulse-height spectra
D Bibliography
Describes a method of determining the detective quantum efficiency (DQE) of x-ray image intensifiers by analysis of the single gamma-ray photon scintillation pulse height spectrum. Applies only to electro-optical X-ray image intensifiers having output radiance decay rates approximately equal to or faster than that of a P-20 phosphor.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 62 |
