Translator Disclaimer
26 September 2013 Investigation of x-ray photon counting using a silicon-PIN diode and its application to energy-dispersive computed tomography
Author Affiliations +
Abstract
X-ray photon counting was performed using a readymade silicon-PIN photodiode (Si-PIN-PD) at tube voltages ranging from 42 to 60 kV, and X-ray photons are directly detected using the 100 MHz Si-PIN-PD without a scintillator. Photocurrent from the diode is amplified using charge-sensitive and shaping amplifiers. Using a multichannel analyzer, X-ray spectra at a tube voltage of 60 kV could easily be measured. The photon-counting computed tomography (PCCT) is accomplished by repeated linear scans and rotations of an object, and projection curves of the object are obtained by the linear scan. In the PC-CT, we confirmed the energy-dispersive effect with changes in lower-level voltage of the event pulse using a comparator.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hajime Kodama, Eiichi Sato, Michiaki Sagae, Osahiko Hagiwara, Hiroshi Matsukiyo, Akihiro Osawa, Toshiyuki Enomoto, Manabu Watanabe, Shinya Kusachi, Shigehiro Sato, and Akira Ogawa "Investigation of x-ray photon counting using a silicon-PIN diode and its application to energy-dispersive computed tomography", Proc. SPIE 8853, Medical Applications of Radiation Detectors III, 885305 (26 September 2013); https://doi.org/10.1117/12.2025365
PROCEEDINGS
5 PAGES


SHARE
Advertisement
Advertisement
Back to Top