Plastic sorting by X-ray radioscopy with photon counting detector

Su, Ting; Institut National des Sciences Appliquees de Lyon; France

Su, T.; Université Lyon; France
Kaftandjian, V.; Université Lyon; France
Duvauchelle, P.; Université Lyon; France
Zhu, Y.; Université Lyon; France

ID: ECNDT-0319-2018
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Session: X-ray radiography 3
Room: G3
Date: 2018-06-12
Time: 09:20 - 09:40

Plastic sorting technique is of great impotance to avoid major environmental and health problems. Acrylonitrile-butadiene-styrene (ABS) is a commonly used thermoplastic polymer that often contains flame retardant (FR). The present work investigates the decomposition feasibility of different ABS-FRs using X-ray radioscopy with photon counting detector. We build a phantom that contains 3 ABS-FR materials and a PCD array with 6 energy bins. A material decomposition method based on patchwise regularization and least log-squares is poposed and evaluated. Results show that the proposed method can not only sepatate 3 ABS-FR materials but also obtain high quantification accuracy of the basis materials.