Evaluation of Antimony Tri-Iodide Crystals for Radiation Detectors

This study was carried out to examine the potential of antimony tri-iodide (SbI3) as a material for radiation detectors that operate at room temperature. SbI3 is a compound semiconductor with an AsI3-type crystal structure, high atomic number (Sb: 51, I: 53), high density (4.92 g/cm3), and a wide ba...

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Main Authors: Toshiyuki Onodera, Koei Baba, Keitaro Hitomi
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Science and Technology of Nuclear Installations
Online Access:http://dx.doi.org/10.1155/2018/1532742
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author Toshiyuki Onodera
Koei Baba
Keitaro Hitomi
author_facet Toshiyuki Onodera
Koei Baba
Keitaro Hitomi
author_sort Toshiyuki Onodera
collection DOAJ
description This study was carried out to examine the potential of antimony tri-iodide (SbI3) as a material for radiation detectors that operate at room temperature. SbI3 is a compound semiconductor with an AsI3-type crystal structure, high atomic number (Sb: 51, I: 53), high density (4.92 g/cm3), and a wide band-gap energy (2.2 eV). In addition, crystalline SbI3 is easy to grow by conventional crystal growth techniques from melting phase because the material exhibits a low melting point (171°C) and undergoes no phase transition in the range of its solid phase. In this study, SbI3 crystals were grown by the Bridgman method after synthesis of SbI3 from 99.9999% pure Sb and 99.999% pure I2. The grown crystals consisted of several large grains with red color and were confirmed to be single-phase crystals by X-ray diffraction analysis. SbI3 detectors with a simple planar structure were fabricated using the cleavage plates of the grown crystals, and the pulse-height spectra were recorded at room temperature using an 241Am alpha-particle (5.48 MeV) source. The detector showed response to the alpha-particle radiation.
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spelling doaj-art-3f80a6049d544183b101d7688874c23b2025-02-03T01:08:49ZengWileyScience and Technology of Nuclear Installations1687-60751687-60832018-01-01201810.1155/2018/15327421532742Evaluation of Antimony Tri-Iodide Crystals for Radiation DetectorsToshiyuki Onodera0Koei Baba1Keitaro Hitomi2Department of Electrical and Electronic Engineering, Tohoku Institute of Technology, Sendai 982-8577, JapanDepartment of Electrical and Electronic Engineering, Tohoku Institute of Technology, Sendai 982-8577, JapanCyclotron and Radioisotope Center, Tohoku University, Sendai 980-8578, JapanThis study was carried out to examine the potential of antimony tri-iodide (SbI3) as a material for radiation detectors that operate at room temperature. SbI3 is a compound semiconductor with an AsI3-type crystal structure, high atomic number (Sb: 51, I: 53), high density (4.92 g/cm3), and a wide band-gap energy (2.2 eV). In addition, crystalline SbI3 is easy to grow by conventional crystal growth techniques from melting phase because the material exhibits a low melting point (171°C) and undergoes no phase transition in the range of its solid phase. In this study, SbI3 crystals were grown by the Bridgman method after synthesis of SbI3 from 99.9999% pure Sb and 99.999% pure I2. The grown crystals consisted of several large grains with red color and were confirmed to be single-phase crystals by X-ray diffraction analysis. SbI3 detectors with a simple planar structure were fabricated using the cleavage plates of the grown crystals, and the pulse-height spectra were recorded at room temperature using an 241Am alpha-particle (5.48 MeV) source. The detector showed response to the alpha-particle radiation.http://dx.doi.org/10.1155/2018/1532742
spellingShingle Toshiyuki Onodera
Koei Baba
Keitaro Hitomi
Evaluation of Antimony Tri-Iodide Crystals for Radiation Detectors
Science and Technology of Nuclear Installations
title Evaluation of Antimony Tri-Iodide Crystals for Radiation Detectors
title_full Evaluation of Antimony Tri-Iodide Crystals for Radiation Detectors
title_fullStr Evaluation of Antimony Tri-Iodide Crystals for Radiation Detectors
title_full_unstemmed Evaluation of Antimony Tri-Iodide Crystals for Radiation Detectors
title_short Evaluation of Antimony Tri-Iodide Crystals for Radiation Detectors
title_sort evaluation of antimony tri iodide crystals for radiation detectors
url http://dx.doi.org/10.1155/2018/1532742
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