High-energy X-ray detection by hafnium-doped organic-inorganic hybrid scintillators prepared by sol-gel method

Yan Sun; Masanori Koshimizu; Natsuna Yahaba; Fumihiko Nishikido; Shunji Kishimoto; Rie Haruki; Keisuke Asai

doi:10.1063/1.4875025

High-energy X-ray detection by hafnium-doped organic-inorganic hybrid scintillators prepared by sol-gel method

Yan Sun, Masanori Koshimizu, Natsuna Yahaba, Fumihiko Nishikido, Shunji Kishimoto, Rie Haruki, Keisuke Asai

ENG - Applied Chemistry

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

34 Citations (Scopus)

Abstract

With the aim of enhancing the efficiency with which plastic scintillators detect high-energy X-rays, hafnium-doped organic-inorganic hybrid scintillators were fabricated via a sol-gel method. Transmission electron microscopy of sampled material reveals the presence of Hf_xSi_1-xO ₂ nanoparticles, dispersed in a polymer matrix that constitutes the active material of the X-ray detector. With Hf_xSi_1-xO ₂ nanoparticles incorporated in the polymer matrix, the absorption edge and the luminescence wavelength is shifted, which we attribute to Mie scattering. The detection efficiency for 67.4-keV X-rays in a 0.6-mm-thick piece of this material is two times better than the same thickness of a commercial plastic scintillator-NE142.

Original language	English
Article number	174104
Journal	Applied Physics Letters
Volume	104
Issue number	17
DOIs	https://doi.org/10.1063/1.4875025
Publication status	Published - 2014 Apr 28

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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abstract = "With the aim of enhancing the efficiency with which plastic scintillators detect high-energy X-rays, hafnium-doped organic-inorganic hybrid scintillators were fabricated via a sol-gel method. Transmission electron microscopy of sampled material reveals the presence of HfxSi1-xO 2 nanoparticles, dispersed in a polymer matrix that constitutes the active material of the X-ray detector. With HfxSi1-xO 2 nanoparticles incorporated in the polymer matrix, the absorption edge and the luminescence wavelength is shifted, which we attribute to Mie scattering. The detection efficiency for 67.4-keV X-rays in a 0.6-mm-thick piece of this material is two times better than the same thickness of a commercial plastic scintillator-NE142.",

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T1 - High-energy X-ray detection by hafnium-doped organic-inorganic hybrid scintillators prepared by sol-gel method

AU - Sun, Yan

AU - Koshimizu, Masanori

AU - Yahaba, Natsuna

AU - Nishikido, Fumihiko

AU - Kishimoto, Shunji

AU - Haruki, Rie

AU - Asai, Keisuke

PY - 2014/4/28

Y1 - 2014/4/28

N2 - With the aim of enhancing the efficiency with which plastic scintillators detect high-energy X-rays, hafnium-doped organic-inorganic hybrid scintillators were fabricated via a sol-gel method. Transmission electron microscopy of sampled material reveals the presence of HfxSi1-xO 2 nanoparticles, dispersed in a polymer matrix that constitutes the active material of the X-ray detector. With HfxSi1-xO 2 nanoparticles incorporated in the polymer matrix, the absorption edge and the luminescence wavelength is shifted, which we attribute to Mie scattering. The detection efficiency for 67.4-keV X-rays in a 0.6-mm-thick piece of this material is two times better than the same thickness of a commercial plastic scintillator-NE142.

AB - With the aim of enhancing the efficiency with which plastic scintillators detect high-energy X-rays, hafnium-doped organic-inorganic hybrid scintillators were fabricated via a sol-gel method. Transmission electron microscopy of sampled material reveals the presence of HfxSi1-xO 2 nanoparticles, dispersed in a polymer matrix that constitutes the active material of the X-ray detector. With HfxSi1-xO 2 nanoparticles incorporated in the polymer matrix, the absorption edge and the luminescence wavelength is shifted, which we attribute to Mie scattering. The detection efficiency for 67.4-keV X-rays in a 0.6-mm-thick piece of this material is two times better than the same thickness of a commercial plastic scintillator-NE142.

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High-energy X-ray detection by hafnium-doped organic-inorganic hybrid scintillators prepared by sol-gel method

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