Characterization and evaluation of temperature-stabilized large volume CeBr3 detectors

Author

Nakazawa, Daiki ; Schotanus, Paul ; Bronson, Frazier

Author_Institution

Canberra Ind. Inc., Meriden, CT, USA

fYear

2013

fDate

Oct. 27 2013-Nov. 2 2013

Firstpage

1

Lastpage

3

Abstract

Cerium Bromide scintillators (CeBr3) have received recent attention for gamma spectroscopy due to its absence of internal background, promising resolution, short scintillation decay time, and good stopping power. We report on the production and characterization of LED stabilized probes with scintillator sizes of 3.7 cm × 3.7 cm (OD x Length) and 5.1 cm × 5.1 cm. Excellent stability versus temperature has been demonstrated from -20 to 50 °C. Modeling capability with MCNP and commercial efficiency codes (ISOCS) show excellent agreement with measured data. Comparisons of resolution performance, shielded and unshielded background data, and intrinsic efficiencies show that CeBr3 probes meet or exceed the performance off-the-shelf NaI:Tl and LaBr3:Ce detectors.

Keywords

gamma-ray spectroscopy; scintillation counters; CeBr3 probes; CeBr₃ detectors; LaBr3:Ce detector; MCNP; cerium bromide scintillators; commercial efficiency codes; gamma spectroscopy; off-the-shelf NaI:Tl detector; temperature-stabilized large volume; Crystals; Detectors; Energy resolution; Probes; Stability analysis; Temperature measurement; Thermal stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2013 IEEE

Conference_Location

Seoul

Print_ISBN

978-1-4799-0533-1

Type

conf

DOI

10.1109/NSSMIC.2013.6829674

Filename

6829674