BS EN 61262-5:1995

Committees responsible
National foreword
Foreword
Introduction
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
ZA. Other international publications quoted in this
     standard with the references of the relevant
     European publications

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 to electro-optical x-ray image intensifiers for medical use, as components of diagnostic x-ray equipment. Also gives detailed definitions and annexes.

This International Standard applies to electro-optical X-ray image intensifier for medical use, as components of diagnostic X-ray equipment. This International Standard 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. The method of this standard 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.