BS EN ISO 32543-3:2026
Current
The latest, up-to-date edition.
Non-destructive testing. Characteristics of focal spots in industrial X-ray systems Measurement of the effective focal spot size of mini and micro focus X-ray tubes
Hardcopy , PDF
English
26-02-2026
| Committee |
WEE/46/5
|
| DocumentType |
Standard
|
| Pages |
24
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
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 characterization of commercial X-ray tube types (i.e. for advertising or trade) the specific maximum values of Annex A are preferred. NOTE The same procedure can be used at higher kilovoltages by agreement but the accuracy of the measurement can be poorer.
| Standards | Relationship |
| EN ISO 32543-3:2026 | Identical |
| ISO 32543-3:2026 | Identical |
| I.S. EN ISO 32543-3:2026 | Equivalent |
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