Scintillation properties of Nd3+-doped Lu2O 3 ceramics in the visible and infrared regions

Shunsuke Kurosawa, Liqiong An, Akihiro Yamaji, Akira Suzuki, Yuui Yokota, Kenji Shirasaki, Tomoo Yamamura, Akihiko Ito, Takashi Goto, Georges Boulon, Akira Yoshikawa

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Nd3+ -doped Lu2O3 (Nd: Lu 2O3) is a candidate for an infrared scintillator because (i) Lu2O3 has a high density of 9.5g/cm3 and a high atomic number of 67 and (ii) Nd3+-doped materials emit in the infrared range and the emission lines from Nd3+ can be used in medical applications since human body has a transparency window between 600 and 1,100 nm. However, it is extremely difficult to fabricate Lu2O 3 single crystals using conventional crystal growth methods because of the high melting point (2,510 °C). Using solid-state reactions, it is much easier to fabricate Lu2O3 into a ceramic structure. Therefore, Nd: Lu2O3 transparent ceramics were fabricated using a spark plasma sintering method. This technique is comparatively simple and consumes less time than other methods such as vacuum hot pressing. The scintillation properties and transmittance spectra of the as-produced ceramics were studied in both the visible and infrared regions. Radioluminescence spectra were measured in the range 800-1,200 nm. Nd3+ emission lines were observed in the transparency window of human body. Thus, these ceramic materials could be a candidate for medical imaging applications.

Original languageEnglish
Article number6704851
Pages (from-to)316-319
Number of pages4
JournalIEEE Transactions on Nuclear Science
Volume61
Issue number1
DOIs
Publication statusPublished - 2014 Feb

Keywords

  • Ceramics scintillators
  • Infrared emission
  • Scintillation counters

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Scintillation properties of Nd<sup>3+</sup>-doped Lu<sub>2</sub>O <sub>3</sub> ceramics in the visible and infrared regions'. Together they form a unique fingerprint.

Cite this