Scintillation characteristics of Cs2LiCeBr6 crystal

Jong Kyu Cheon; Sunghwan Kim; Gul Rooh; J. H. So; H. J. Kim; H. Park

doi:10.1016/j.nima.2011.02.038

Scintillation characteristics of Cs₂LiCeBr₆ crystal

Jong Kyu Cheon, Sunghwan Kim, Gul Rooh, J. H. So, H. J. Kim, H. Park

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

This work investigates the scintillation properties of Cs ₂LiCeBr₆ crystal as a new material for radiation detection. This scintillation material is grown by the vertical Bridgman method. Under X-ray excitation the sample crystal shows a broad cerium based emission band between 390 and 450 nm wavelength range. Energy resolution for 662 keV γ-rays is measured to be 7.4% (FWHM). At room temperature Cs ₂LiCeBr₆ crystal exhibits three exponential decay time components. The fast and major component of scintillation time profile of Cs₂LiCeBr₆ emission decays with a 86 ns time constant. Absolute light yield for the sample crystal is estimated to be 27,000 and 29,000 photons/MeV using APD and photomultiplier tube, respectively. The sample crystal shows good proportionality of 5% in the measured energy range from 31 to 1333 keV. This study showed that this new scintillation crystal can be a good candidate for radiation detection and medical imaging. The sample crystal is highly hygroscopic.

Original language	English
Pages (from-to)	205-208
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	652
Issue number	1
DOIs	https://doi.org/10.1016/j.nima.2011.02.038
State	Published - 1 Oct 2011

Keywords

Bridgman method
Decay time
Energy resolution
Scintillation material

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title = "Scintillation characteristics of Cs2LiCeBr6 crystal",

abstract = "This work investigates the scintillation properties of Cs 2LiCeBr6 crystal as a new material for radiation detection. This scintillation material is grown by the vertical Bridgman method. Under X-ray excitation the sample crystal shows a broad cerium based emission band between 390 and 450 nm wavelength range. Energy resolution for 662 keV γ-rays is measured to be 7.4% (FWHM). At room temperature Cs 2LiCeBr6 crystal exhibits three exponential decay time components. The fast and major component of scintillation time profile of Cs2LiCeBr6 emission decays with a 86 ns time constant. Absolute light yield for the sample crystal is estimated to be 27,000 and 29,000 photons/MeV using APD and photomultiplier tube, respectively. The sample crystal shows good proportionality of 5% in the measured energy range from 31 to 1333 keV. This study showed that this new scintillation crystal can be a good candidate for radiation detection and medical imaging. The sample crystal is highly hygroscopic.",

keywords = "Bridgman method, Decay time, Energy resolution, Scintillation material",

author = "Cheon, {Jong Kyu} and Sunghwan Kim and Gul Rooh and So, {J. H.} and Kim, {H. J.} and H. Park",

year = "2011",

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doi = "10.1016/j.nima.2011.02.038",

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T1 - Scintillation characteristics of Cs2LiCeBr6 crystal

AU - Cheon, Jong Kyu

AU - Kim, Sunghwan

AU - Rooh, Gul

AU - So, J. H.

AU - Kim, H. J.

AU - Park, H.

PY - 2011/10/1

Y1 - 2011/10/1

N2 - This work investigates the scintillation properties of Cs 2LiCeBr6 crystal as a new material for radiation detection. This scintillation material is grown by the vertical Bridgman method. Under X-ray excitation the sample crystal shows a broad cerium based emission band between 390 and 450 nm wavelength range. Energy resolution for 662 keV γ-rays is measured to be 7.4% (FWHM). At room temperature Cs 2LiCeBr6 crystal exhibits three exponential decay time components. The fast and major component of scintillation time profile of Cs2LiCeBr6 emission decays with a 86 ns time constant. Absolute light yield for the sample crystal is estimated to be 27,000 and 29,000 photons/MeV using APD and photomultiplier tube, respectively. The sample crystal shows good proportionality of 5% in the measured energy range from 31 to 1333 keV. This study showed that this new scintillation crystal can be a good candidate for radiation detection and medical imaging. The sample crystal is highly hygroscopic.

AB - This work investigates the scintillation properties of Cs 2LiCeBr6 crystal as a new material for radiation detection. This scintillation material is grown by the vertical Bridgman method. Under X-ray excitation the sample crystal shows a broad cerium based emission band between 390 and 450 nm wavelength range. Energy resolution for 662 keV γ-rays is measured to be 7.4% (FWHM). At room temperature Cs 2LiCeBr6 crystal exhibits three exponential decay time components. The fast and major component of scintillation time profile of Cs2LiCeBr6 emission decays with a 86 ns time constant. Absolute light yield for the sample crystal is estimated to be 27,000 and 29,000 photons/MeV using APD and photomultiplier tube, respectively. The sample crystal shows good proportionality of 5% in the measured energy range from 31 to 1333 keV. This study showed that this new scintillation crystal can be a good candidate for radiation detection and medical imaging. The sample crystal is highly hygroscopic.

KW - Bridgman method

KW - Decay time

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Scintillation characteristics of Cs₂LiCeBr₆ crystal

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