Online ISSN: 1884-4111 Print ISSN: 0033-8303
Radioisotopes 65(3): 119-128 (2016)


教育用3次元X線CT装置の開発と利用Development and Application of an Educational 3D X-Ray CT Instrument

東京学芸大学教育学部Department of Physics, Tokyo Gakugei University ◇ 4–1–1 Nukuikita-machi, Koganei-shi, Tokyo 184–8501, Japan

受付日:2015年7月22日Received: July 22, 2015
受理日:2016年1月8日Accepted: January 8, 2016
発行日:2016年3月15日Published: March 15, 2016


A three-dimensional (3D) X-ray computed tomography (CT) instrument for radiation education was developed. The structure of the instrument is such that the main parts, i.e. the X-ray source, specimen rotation stage, and two-dimensional detector can be easily observed. An experiment using a fruit of green pepper as a specimen was performed. CT images and intermediate steps for obtaining them, i.e. radiographs, sinograms after Radon transform, and real and imaginary parts of Fourier components in reciprocal space during inverse Radon transform are shown. We propose that these images will help students to understand the principle and mechanism of X-ray CT instruments visually.

Key words: radiation education; radiography; sinogram; X-ray CT

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