@inproceedings{a93122b9d05e487ab445b7a6edeb4cf8,
title = "Classifiers for material discrimination with dual modality X-ray transmission and coherent X-ray diffraction system",
abstract = "X-ray coherent diffraction-based measurements can provide more specific material information that is complementary to transmission-based material information. With increasing capability of the X-ray coherent diffraction-based systems and recent development of dual modality of X-ray transmission-based and diffraction-based systems, there is a significant potential for improving the overall system threat detection performance for material discrimination. Dual modality systems can yield higher detection probability (Pd) while lowering the probability of false alarm (Pfa), relative to the transmission modality. In this work, we analyze the material discrimination performance for two different machine learning classifiers: support vector machines (SVM) and neural networks (NN), using both simulation and experimental data obtained with a dual-modality X-ray system. Using simulation studies, we demonstrate significant improvement in material discrimination performance afforded by additional complementary information by coherent diffraction for a variety of materials. We further validate these improvements using an experimental dataset collected using real-world objects and materials.",
keywords = "Classifications, Experiment, Machine learning, Simulation, X-ray diffraction, X-ray transmission",
author = "R. Thamvichai and Dan Pike and J. Greenberg and A. Ashok",
note = "Publisher Copyright: {\textcopyright} 2023 SPIE.; Anomaly Detection and Imaging with X-Rays (ADIX) VIII 2023 ; Conference date: 03-05-2023 Through 04-05-2023",
year = "2023",
doi = "10.1117/12.2664196",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Amit Ashok and Greenberg, {Joel A.} and Gehm, {Michael E.}",
booktitle = "Anomaly Detection and Imaging with X-Rays (ADIX) VIII",
}