TY - JOUR
T1 - Preliminary report on the development of a high resolution PET camera using semiconductor detectors
AU - Kikuchi, Yohei
AU - Ishii, Keizo
AU - Yamazaki, Hiromichi
AU - Matsuyama, Shigeo
AU - Yamaguchi, Takashi
AU - Yamamoto, Yusuke
AU - Sato, Takemi
AU - Aoki, Yasushi
AU - Aoki, Kenichi
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2005/12
Y1 - 2005/12
N2 - We are developing a PET camera using small semiconductor detectors, whose resolution is equivalent to the physical limit of spatial resolution. First, a coincidence system of 16 Schottky CdTe detectors of 0.5 mm width obtained a resolution of <1 mm and it was confirmed that the Schottky CdTe detector is suitable for high resolution PET. Next, the performance of a pair of 32 channel CdTe arrays (1.2 mm width per channel) was investigated for the development of the prototype of high resolution PET. The time resolution between opposing detector pair was 13 ns (FWHM) when high voltage (700 V) was applied. The image of a 0.6 mm diameter point source was obtained in an experiment with opposing detector arrays using four channels, indicating that, a higher resolution can be achieved with the 32 channel CdTe array.
AB - We are developing a PET camera using small semiconductor detectors, whose resolution is equivalent to the physical limit of spatial resolution. First, a coincidence system of 16 Schottky CdTe detectors of 0.5 mm width obtained a resolution of <1 mm and it was confirmed that the Schottky CdTe detector is suitable for high resolution PET. Next, the performance of a pair of 32 channel CdTe arrays (1.2 mm width per channel) was investigated for the development of the prototype of high resolution PET. The time resolution between opposing detector pair was 13 ns (FWHM) when high voltage (700 V) was applied. The image of a 0.6 mm diameter point source was obtained in an experiment with opposing detector arrays using four channels, indicating that, a higher resolution can be achieved with the 32 channel CdTe array.
KW - CdTe
KW - Image
KW - PET
KW - Semiconductor PET
KW - Spatial resolution
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U2 - 10.1016/j.nimb.2005.07.124
DO - 10.1016/j.nimb.2005.07.124
M3 - Article
AN - SCOPUS:28044465616
VL - 241
SP - 727
EP - 731
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
SN - 0168-583X
IS - 1-4
ER -