Prototype of high resolution PET using resistive electrode position sensitive CdTe detectors

Author

Kikuchi, Y. ; Ishii, K. ; Terakawa, A. ; Matsuyama, S. ; Kotani, K. ; Yamazaki, H. ; Hatazawa, J.

Author_Institution

Tohoku Univ., Tohoku

Volume

4

fYear

2007

fDate

Oct. 26 2007-Nov. 3 2007

Firstpage

2669

Lastpage

2672

Abstract

We developed resistive electrode position sensitive CdTe detectors and a prototype PET camera which included them in order to achieve a high sensitive semiconductor PET camera. It was determine that a high resistive electrode on a CdTe detector could be made by changing a thickness of an electrode metal. 1-dimensional position sensitive detectors were made by this method, and a good position resolution of 1.2 mm FWHM was confirmed. The prototype camera was built with these detectors. Reconstructed images of 22Na were obtained with the prototype. Resolutions are 0.8 mm (FWHM) in transaxial, and 1.6 mm (FWHM) in axial.

Keywords

biomedical electrodes; biomedical equipment; image reconstruction; image resolution; position sensitive particle detectors; positron emission tomography; semiconductor counters; 1-dimensional position sensitive detectors; high resolution PET; high sensitive semiconductor PET camera; image resolution; position resolution; reconstructed images; resistive electrode position sensitive CdTe detectors; Biomedical electrodes; Cameras; Image reconstruction; Immune system; Nuclear and plasma sciences; Position sensitive particle detectors; Positron emission tomography; Prototypes; Sensor arrays; Spatial resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2007. NSS '07. IEEE

Conference_Location

Honolulu, HI

ISSN

1095-7863

Print_ISBN

978-1-4244-0922-8

Electronic_ISBN

1095-7863

Type

conf

DOI

10.1109/NSSMIC.2007.4436695

Filename

4436695