Resumen
This document specifies a method for the measurement of focal spot dimensions within the range of 5 µm to 300 µm of X-ray systems up to and including 225 kV tube voltage. This determination is based on the evaluation of an image with a dedicated focal spot that has been radiographically recorded using an edge and evaluated with a digital method. The imaging quality and the resolution of X-ray images depend highly on the characteristics of the effective focal spot, in particular the size and the two-dimensional intensity distribution as seen from the detector plane. For the characterisation of commercial X-ray tube types (i.e. for advertising or trade) the specific maximum values of annex A should be preferred.
Informaciones generales
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Estado: En desarrollo
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Etapa: Voto sobre el DIS iniciado: 12 semanas [40.20] -
Edición: 1Número de páginas: 10
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Comité Técnico :ISO/TC 135/SC 5ICS :19.100
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