Title :
Basic characteristics of a newly developed Si/CdTe Compton camera for medical imaging
Author :
Kawachi, Naoki ; Watanabe, Shigetaka ; Satoh, T. ; Arakawa, Kazuki ; Takeda, Shigeki ; Ishikawa, Seiichiro ; Aono, Hiroshi ; Watanabe, Shigetaka ; Yamaguchi, Masaki ; Takahashi, Tatsuro ; Shimada, Hiroki ; Yoshida, Yutaka ; Suzuki, Yuya ; Sakurai, Haruaki
Author_Institution :
Plant Positron Imaging Group, Quantum Beam Directorate, Japan Atomic Energy Agency, Watanuki 1233, Takasaki, Gunma, 370-1292, JAPAN
Abstract :
We have developed a prototype Compton camera for in vivo imaging by using semiconductor imaging devices, which has been proved to be successful techniques for the observation of high-energy astrophysical phenomena. In this camera, double-sided Si strip detectors (DSSDs) serve as scatterers and pixelized CdTe detectors (pCdTe) serve as absorbers. Some Compton images were acquired with radioisotopes in a phantom, which reveal certain characteristics of the field of view this camera, and the distributions of efficiencies and spatial resolutions. In a rat study, the nuclides in the body were distinguished by their γ-ray energies, and the difference in the distributions of the nuclides could also be successfully observed.
Keywords :
Biomedical imaging; Cameras; Decision support systems; Detectors; Imaging phantoms; In vivo; Prototypes; Radioactive materials; Scattering; Strips;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2008. NSS '08. IEEE
Conference_Location :
Dresden, Germany
Print_ISBN :
978-1-4244-2714-7
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2008.4775119
