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Report No.

An Evaluation of three-dimensional imaging by use of Si/CdTe Compton cameras

Yamaguchi, Mitsutaka; Nagao, Yuto; Kawachi, Naoki; Fujimaki, Shu; Kamiya, Tomihiro; Odaka, Hirokazu*; Kokubun, Motohide*; Takeda, Shinichiro*; Watanabe, Shin*; Takahashi, Tadayuki*; Shimada, Hirofumi*; Torikai, Kota*; Arakawa, Kazuo*; Nakano, Takashi*

A Monte Carlo simulation system was developed to estimate the response of Compton camera against $$gamma$$-ray emissions from RI spots in a PET-standard human-body phantom. The quality of the three-dimensional imaging program for the Si/CdTe Compton camera to reconstruct the image of the RI spots in a phantom was evaluated by the system, when the phantom has three hot sphere-regions with the same known RI density and different diameters, in other words, different known intensities. The density values of the hot regions reconstructed by the three-dimensional imaging program for the Compton camera were consistent to the known intensities of the RI. It demonstrates sufficient quality of the program for Si/CdTe Compton camera to image RI spots in the phantom.



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