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

Research output: Contribution to journalArticlepeer-review

25 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 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.

Original languageEnglish
Article number174104
JournalApplied Physics Letters
Volume104
Issue number17
DOIs
Publication statusPublished - 2014 Apr 28

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'High-energy X-ray detection by hafnium-doped organic-inorganic hybrid scintillators prepared by sol-gel method'. Together they form a unique fingerprint.

Cite this