TY - GEN
T1 - Development of a prototype semiconductor gamma-camera system
AU - Ogawa, Koichi
AU - Ishikawa, Takumi
AU - Shuto, Keisei
AU - Kobayashi, Hiroaki
AU - Nakahara, Tadaki
AU - Shigematsu, Naoyuki
PY - 2009/12/1
Y1 - 2009/12/1
N2 - We made a prototype gamma camera system with CdZnTe semiconductor detectors that work at room temperature. The effective field of view of this detector is 195 x 156 mm2 with a pixel size of 2.46 x 2.46 mm2. We evaluated the performance of the detector in terms of the energy resolution, intrinsic spatial resolution, system spatial resolution and system sensitivity. The performance of the detector was evaluated with methods based on the NEMA standard (NU1). The results showed that the mean energy resolution was 5.55 % FWHM for 99mTc, the intrinsic spatial resolution 2.46 mm FWHM, the system spatial resolutions 7.1 mm FWHM (without scatterer) and 7.4 mm FWHM (with scatterer), and the system sensitivity 46.3 cps/MBq. The performance of the system was also evaluated with some SPECT phantoms and the feasibility of the detector was confirmed with the SPECT images.
AB - We made a prototype gamma camera system with CdZnTe semiconductor detectors that work at room temperature. The effective field of view of this detector is 195 x 156 mm2 with a pixel size of 2.46 x 2.46 mm2. We evaluated the performance of the detector in terms of the energy resolution, intrinsic spatial resolution, system spatial resolution and system sensitivity. The performance of the detector was evaluated with methods based on the NEMA standard (NU1). The results showed that the mean energy resolution was 5.55 % FWHM for 99mTc, the intrinsic spatial resolution 2.46 mm FWHM, the system spatial resolutions 7.1 mm FWHM (without scatterer) and 7.4 mm FWHM (with scatterer), and the system sensitivity 46.3 cps/MBq. The performance of the system was also evaluated with some SPECT phantoms and the feasibility of the detector was confirmed with the SPECT images.
UR - http://www.scopus.com/inward/record.url?scp=77951174027&partnerID=8YFLogxK
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U2 - 10.1109/NSSMIC.2009.5401829
DO - 10.1109/NSSMIC.2009.5401829
M3 - Conference contribution
AN - SCOPUS:77951174027
SN - 9781424439621
T3 - IEEE Nuclear Science Symposium Conference Record
SP - 3597
EP - 3601
BT - 2009 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2009
T2 - 2009 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2009
Y2 - 25 October 2009 through 31 October 2009
ER -