title: Characterization measurement of a thick CdTe detector for BNCT-SPECT - detection efficiency and energy resolution.
abstract: Author׳s group is carrying out development of BNCT-SPECT with CdTe device, which monitors the therapy effect of BNCT in real-time. From the design calculations, the dimensions were fixed to 1.5×2×30mm(3). For the collimator it was confirmed that it would have a good spatial resolution and simultaneously the number of counts would be acceptably large. After producing the CdTe crystal, the characterization measurement was carried out. For the detection efficiency an excellent agreement between calculation and measurement was obtained. Also, the detector has a very good energy resolution so that gamma-rays of 478keV and 511keV could be distinguished in the spectrum.
authors.affiliation: Division of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University, Yamada-oka 2-1, Suita, Osaka 565-0871, Japan. Electronic address: murata@eei.eng.osaka-u.ac.jp.
authors.forename: Isao
authors.initials: I
authors.lastname: Murata
authors.affiliation: Division of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University, Yamada-oka 2-1, Suita, Osaka 565-0871, Japan.
authors.forename: Soichiro
authors.initials: S
authors.lastname: Nakamura
authors.affiliation: Division of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University, Yamada-oka 2-1, Suita, Osaka 565-0871, Japan.
authors.forename: Masanobu
authors.initials: M
authors.lastname: Manabe
authors.affiliation: Radiation Research Center, Osaka Prefecture University, Gakuen-cho 1-1, Nakaku, Sakai, Osaka 599-8531, Japan.
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Miyamaru
authors.affiliation: Department of Oral and Maxillofacial Surgery II, Graduate School of Dentistry, Osaka University, Yamada-oka 1-8, Suita, Osaka 565-0871, Japan.
authors.forename: Itsuro
authors.initials: I
authors.lastname: Kato
mesh_terms: D016754:Boron Neutron Capture Therapy / Q000295:instrumentation*; D019187:Cadmium Compounds / Q000528:radiation effects*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D021621:Imaging, Three-Dimensional / Q000295:instrumentation*; D011874:Radiometry / Q000295:instrumentation*; D015203:Reproducibility of Results; D018036:Selenium Compounds / Q000528:radiation effects*; D012680:Sensitivity and Specificity; D015899:Tomography, Emission-Computed, Single-Photon / Q000295:instrumentation*
chemical_list: D019187:Cadmium Compounds; D018036:Selenium Compounds; C058667:cadmium selenide
keywords: (10)B(n,α)(7)Li; 478keV; BNCT; CdTe; Gamma-ray; SPECT