GB/T 25758.1-2010 Non-destructive testing—Characteristics of focal spots in industrial X-ray systems for use in non-destructive testing—Part 1:Scanning method

Scope

This part of GB/T 25758 specifies the measurement method for the focal size of industrial X-ray systems with a tube voltage of up to 500 kV. This part describes a method of directly mechanically scanning the focal point larger than 0.1 mm using a strictly collimated receiver.
The image quality and resolution of X-ray images largely depend on the characteristics of the focal point, especially its size and two-dimensional intensity distribution.
For the characteristics of commercial X-ray tubes (e.g., those used in advertising or trade), it is advisable to first consider the maximum values given in Appendix A.

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