7 September 2017 Measurement of x-ray spectra using a recent YAP(Ce)-MPPC detector
Author Affiliations +
To measure X-ray spectra with high count rates, we developed a detector consisting of a cerium-doped yttrium aluminum perovskite [YAP(Ce)] crystal and a recent multipixel photon counter (MPPC). Scintillation photons are detected using the MPPC, and the photocurrents flowing through the MPPC are converted into voltages and amplified using a high-speed current-voltage (I-V) amplifier. The MPPC bias voltage was set to a value at the pre-Geiger mode to perform zero-dark counting. The event-pulse widths were approximately 200 ns, and the widths were extend to approximately 1 μs. X-ray spectra were measured using a multichannel analyzer (MCA) for pulse-height analysis. The photon energy was roughly determined by the two-point calibration using tungsten K photons and iodine K fluorescence. Using the YAP(Ce)-MPPC detector, first-generation dual-energy computed tomography was accomplished using iodine and gadolinium contrast media.
Conference Presentation
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Eiichi Sato, Eiichi Sato, Yasuyuki Oda, Yasuyuki Oda, Sohei Yoshida, Sohei Yoshida, Satoshi Yamaguchi, Satoshi Yamaguchi, Yuichi Sato, Yuichi Sato, Tomotaka Ishii, Tomotaka Ishii, Osahiko Hagiwara, Osahiko Hagiwara, Hiroshi Matsukiyo, Hiroshi Matsukiyo, Toshiyuki Enomoto, Toshiyuki Enomoto, Manabu Watanabe, Manabu Watanabe, Shinya Kusachi, Shinya Kusachi, } "Measurement of x-ray spectra using a recent YAP(Ce)-MPPC detector", Proc. SPIE 10393, Radiation Detectors in Medicine, Industry, and National Security XVIII, 103930J (7 September 2017); doi: 10.1117/12.2275288; https://doi.org/10.1117/12.2275288


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