Tl2LaCl5:Ce, high performance scintillator for gamma-ray detectors

Rastgo Hawrami,E. Ariesanti,H. Wei,J. Finkelstein,J. Glodo,K.S. Shah

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment（2017）

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摘要

This paper reports on a new Ce-doped Tl-based scintillator, Tl2LaCl5 (TLC), for gamma-ray detection. 10 mm diameter crystals have been successfully grown using the vertical Bridgman method. The emission peak of TLC is detected at 383 nm under X-ray excitation. The light yield of TLC is 76,000 ph/MeV. The samples show excellent energy resolution of 3.4% (FWHM) at 662 keV. The non-proportionality is less than 1%, from 32 keV to 1275 keV. The major scintillation decay time is 36 ns.

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关键词

Scintillators,Tl2LaCl5 ,Metal halides,Radiation detection

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