| 摘要 |
The contaminant detector of the invention is a contaminant detector for detection of solid contaminants present in coke, and comprises X-ray irradiation means that irradiates X-rays onto coke to be evaluated for the potential presence of solid contaminants; X-ray intensity measuring means that measures the intensity of transmitted X-rays in a prescribed region of X-rays that are transmitted through coke to be evaluated; and determining means that compares the numerical value for the transmitted X-ray intensity against a prescribed threshold value and, based on the results of the comparison, determines whether or not the coke to be evaluated includes solid contaminants in the prescribed region.
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