X-ray inspector

Abstract

Provided is an X-ray inspector capable of non-destructively measuring a shape and content of gold (Au) contained in an object to be inspected, promptly with high accuracy. An X-ray inspector includes: an X-ray generator 4 that irradiates an object to be inspected with X-rays having energy of 90 keV or higher; X-ray detector 6, 7 that detects the X-rays transmitted through the object to be inspected; a computing section 8 that measures a shape and content of Au contained in the object to be inspected based on an X-ray signal detected by the X-ray detector, wherein an Au filter 13 and a Pt filter 14 are respectively provided between the X-ray detector and the object to be inspected. The X-ray detector 6, 7 detects X-rays emitted from the X-ray generator and transmitted through the object to be inspected and the Au filter and X-rays emitted from the X-ray generator and transmitted through the object to be inspected and the Pt filter. The computing section 8 measures the shape and the content of Au contained in the object to be inspected based on X-ray signals corresponding respectively to the X-rays.

Description

technical field [0001] The present invention relates to an X-ray inspection device for non-destructively measuring the shape and content of gold (Au) contained in objects to be inspected such as gold ore, precious metal jewels, printed circuit boards, and electronic component crystals. Background technique [0002] In the past, as an analysis method for the content of gold (Au) contained in objects to be inspected such as gold ore, precious metal gemstones, printed circuit boards, and electronic components, it was generally used to perform pretreatment by chemical reaction, and then use ICP analysis equipment, etc. Methods of analysis (see, for example, Patent Document 1). [0003] In addition, there is also known a fluorescent X-ray analyzer (see, for example, Patent Document 2), which irradiates an object to be inspected with relatively weak energy X-rays, and analyzes the wavelength of the element-specific X-ray fluorescence emitted from the object to be inspected. or in...

AI Technical Summary

Problems solved by technology

[0009] However, the pretreatment by chemical reaction or the use of reaction reagents, etc., as in Patent Document 1, will destroy the shape of the object to be inspected, so the original object cannot be reproduced, so the reliability of the analysis result cannot be guaranteed, and there are problems that cannot be calculated. Questions about measuring the shape of Au contained in the object to be inspected

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