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14 June 2023 X-ray energy discrimination imaging by photon counting and the effect of x-ray energy on conventional energy-integrated imaging
Toru Aoki, Hiroki Kase, Katsuyuki Takagi, Akifumi Koike, Kento Tabata, Junichi Nishizawa
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Proceedings Volume 12531, Anomaly Detection and Imaging with X-Rays (ADIX) VIII; 125310K (2023) https://doi.org/10.1117/12.2663822
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States
Abstract
We have developed X-ray imaging sensors of the photon-charge counting type that can discriminate X-ray energy, and also developed conventional energy-integrating X-ray imaging sensors. X-ray imaging started in the medical field, but in recent years, it has become necessary to support high-energy X-rays for applications such as nondestructive testing and security inspection. X-ray has a white spectrum, and its maximum energy is determined by the acceleration voltage and the number of photons is determined by the current. When high output is desired for high-throughput imaging, it is common to increase the voltage as well as the current, and good images have been obtained by the skill of the imaging technician. In this study, we discuss the influence of X-ray energy on imaging in terms of the imaging target and the type of X-ray detector, and argue that energy-differentiated imaging with X-rays is important not only for high-performance imaging but also for simple transmission imaging.
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Toru Aoki, Hiroki Kase, Katsuyuki Takagi, Akifumi Koike, Kento Tabata, and Junichi Nishizawa "X-ray energy discrimination imaging by photon counting and the effect of x-ray energy on conventional energy-integrated imaging", Proc. SPIE 12531, Anomaly Detection and Imaging with X-Rays (ADIX) VIII, 125310K (14 June 2023); https://doi.org/10.1117/12.2663822
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KEYWORDS
X-ray imaging
X-rays
Photon counting
Sensors
X-ray detectors
Image sensors
Perovskite
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