BS ISO 15632:2021
$102.76
Microbeam analysis. Selected instrumental performance parameters for the specification and checking of energy-dispersive X-ray spectrometers (EDS) for use with a scanning electron microscope (SEM) or an electron probe microanalyser (EPMA)
Published By | Publication Date | Number of Pages |
BSI | 2021 | 22 |
This document defines the most important quantities that characterize an energy-dispersive X?ray spectrometer consisting of a semiconductor detector, a pre-amplifier and a signal-processing unit as the essential parts. This document is only applicable to spectrometers with semiconductor detectors operating on the principle of solid-state ionization. This document specifies minimum requirements and how relevant instrumental performance parameters are to be checked for such spectrometers attached to a scanning electron microscope (SEM) or an electron probe microanalyser (EPMA). The procedure used for the actual analysis is outlined in ISO 22309[ 2] and ASTM E1508[ 3] and is outside the scope of this document.
PDF Catalog
PDF Pages | PDF Title |
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2 | National foreword |
6 | Foreword |
7 | Introduction |
9 | 1 Scope 2 Normative references 3 Terms and definitions |
11 | 4 Requirements 4.1 General description |
12 | 4.2 Energy resolution 4.3 Dead time 4.4 Peak-to-background ratio |
13 | 4.5 Energy dependence of instrumental detection efficiency 5 Check of further performance parameters 5.1 General 5.2 Stability of the energy scale and resolution 5.3 Pile-up effects 5.4 Periodical check of spectrometer performance |
14 | Annex A (normative) Measurement of line widths (FWHMs) to determine the energy resolution of the spectrometer |
18 | Annex B (normative) Measurement of the L/K ratio as a measure for the energy dependence of the instrumental detection efficiency |
20 | Bibliography |