SELECTION APPARATUS AND SELECTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a selection apparatus and a selection method capable of more easily performing evaluation whether or not bromine is contained in a resin piece.

SOLUTION: The selection apparatus includes: an X-ray source 1 for applying a continuous X-ray 6 by an electron beam whose acceleration voltage is 40 kV or more and 60 kV or less; a filter 14 having a thickness of 50 nm or more and 100 nm or less and formed of molybdenum; an X-ray detector for detecting an X-ray transmitted through the filter 14 and a resin piece 2; and a control part for selecting the resin piece 2 based on the detection data of the X-ray detector. The control part includes: a storage part previously storing transmission intensity data of an X-ray transmitted through the filter 14 and applied to a test piece not containing bromine and formed of the same resin as the resin piece 2; and an operation part for selecting the resin piece 2 by comparing the transmission intensity of the x-ray transmitted through the filter 14 and the resin piece 2 with the data.

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