Cerium bromide scintillation detectors

Author

Onodera, Toshiyuki ; Hitomi, Keitaro ; Shoji, Tadayoshi

Author_Institution

Tohoku Inst. of Technol., Sendai

Volume

3

fYear

2007

fDate

Oct. 26 2007-Nov. 3 2007

Firstpage

2182

Lastpage

2183

Abstract

In this study, CeBr₃ crystals were grown by the vertical Bridgman method from the starting material with nominal purity of 99.999%. The size of the single crystal was approximately 60 mm in length and 8 mm in diameter. The grown crystals were cut into small pieces. The crystal was connected to a photodetector (Si APD or Si photodiode) and energy spectra were measured by irradiating them with 662 keV gamma-rays at room temperature. An FWHM energy resolution of 662 keV gamma-rays obtained with the CeBr₃ coupled to the APD was measured to be 40 keV (6.1%), which is 2 times better than that obtained with a GSO scintillator at the same condition.

Keywords

avalanche photodiodes; cerium compounds; crystal growth from melt; gamma-ray effects; photodetectors; solid scintillation detectors; CeBr₃; FWHM energy resolution; GSO scintillator; Si APD; Si photodiode; cerium bromide scintillation detectors; crystal growth; electron volt energy 662 keV; energy spectra; gamma-rays; photodetector; temperature 293 K to 298 K; vertical Bridgman method; Biomedical optical imaging; Cerium; Crystalline materials; Energy resolution; Optical surface waves; Photodetectors; Photonic crystals; Scintillation counters; Stimulated emission; Temperature;

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.2007.4436584

Filename

4436584