• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Optics Letters >Luminescence of La_(0.2)Y_(1.8)O_3 nanostructured scintillators
【24h】

Luminescence of La_(0.2)Y_(1.8)O_3 nanostructured scintillators

机译：La_（0.2）Y_（1.8）O_3纳米结构闪烁体的发光

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

For the first time, transparent La_(0.2)Y_(1.8)O_3 nanostructured polycrystalline scintillators were fabricated by sintering nanoparticle powders at high temperatures and their scintillation properties are reported. La_(0.2)Y_(1.8)O_3 is a host material that has never been investigated as scintillators for radiation detection. Our observations found that La_(0.2)Y_(1.8)O_3 has an intense scintillation luminescence, a detection efficiency higher than that of YAG:Ce and a comparable energy resolution to NaI and CsI scintillators. In addition, La_(0.2)Y_(1.8)O_3 is stable and has luminescence decay lifetime in the picosecond range which is favorable for radiation detection. The luminescence of La_(0.2)Y_(1.8)O_3 has a large Stokes-shift and a large emission bandwidth, and the luminescence is highly temperature dependent. Different from most doped scintillators, the luminescence of La_(0.2)Y_(1.8)O_3 is most likely from the self-trapped excitons. The discovery of La_(0.2)Y_(1.8)O_3 scintillators opens a new door for the research of new materials for radiation detection.
机译：首次通过高温烧结纳米粉体制备了透明的La_（0.2）Y_（1.8）O_3纳米结构多晶闪烁体，并报道了其闪烁特性。 La_（0.2）Y_（1.8）O_3是一种基质材料，从未作为辐射检测的闪烁体进行研究。我们的观察发现，La_（0.2）Y_（1.8）O_3具有强烈的闪烁发光，检测效率高于YAG：Ce，并且具有与NaI和CsI闪烁体相当的能量分辨率。另外，La_（0.2）Y_（1.8）O_3是稳定的并且具有在皮秒范围内的发光衰减寿命，这对于放射线检测是有利的。 La_（0.2）Y_（1.8）O_3的发光具有大的斯托克斯位移和大的发射带宽，并且发光与温度密切相关。与大多数掺杂闪烁体不同，La_（0.2）Y_（1.8）O_3的发光最有可能来自自陷激子。 La_（0.2）Y_（1.8）O_3闪烁体的发现为辐射检测新材料的研究打开了新的大门。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号