DIN Standards Committee Materials Testing
Non-destructive testing - Characteristics of focal spots in industrial X-ray systems - Part 2: Edge method with hole type gauges (ISO/DIS 32543-2:2024)
Abstract
This European standard specifies a method for the measurement of effective focal spot dimensions above 0,1 µm of X-ray systems by means of the edge method applied to digital images taken from hole type or disk type gauges. 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. This document provides instructions for determining the effective size (dimensions) of standard, mini and micro focal spots of industrial X-ray tubes for users in applications where the pin hole method of EN12543-2 is not practicable. This determination is based on the measurement of a profile of an image of a hole or disk type gauge. The method as described in this document can be used for long term monitoring of focal spot sizes without a pin hole camera. The accuracy of this method is lower than the one of ISO 32543-1 (EN 12543-2), ISO/NP 32543-3 (EN 12543-5) and ISO/NP 32543-4 (future EN 12543-6), using ASTM hole plate IQIs (ASTM E 1025, E 1742), due to its manufacturer tolerance of 10%.
Begin
2023-12-06
WI
00138295
Planned document number
prEN ISO 32543-2
Responsible national committee
NA 062-11-11 AA - Industrial radiation methods
Responsible european committee
CEN/TC 138/WG 1 - Radiographic testing
draft standard
Non-destructive testing - Characteristics of focal spots in industrial X-ray systems - Part 2: Edge method with hole type gauges (ISO/DIS 32543-2:2024)
2024-12
Order from DIN Media
