• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials Science and Engineering >Sintered pellets: A simple and cost effective method to predict the performance of GGAG:Ce single crystals
【24h】

Sintered pellets: A simple and cost effective method to predict the performance of GGAG:Ce single crystals

机译：烧结颗粒：一种简单且经济高效的方法来预测GGAG：Ce单晶的性能

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

Polycrystalline Gd_3Ga_3Al_2O_(12):Ce (GGAG:Ce) pellets with various codopants were prepared via solid-state synthesis and characterized by X-ray diffraction, radioluminescence (RL), photoluminescence (PL), reflectivity and PL decay measurements. GGAG:Ce pellets codoped with B and Ba were found to have higher RL intensity than pellets with other codopants, while Ca codoping improved the decay time but reduced the RL intensity. These results were strongly correlated with the performance of these codopants in GGAG:Ce single crystals. The light yield of the single crystals codoped with B or Ba was ～15% higher than the light yield of the GGAG:Ce crystal without codoping, while Ca codoping in single crystals resulted in lower light yield but shorter scintillation decay time (43 ns vs. 56 ns). The consistent performance of these codopants in both matrix forms indicates that sintering pellets may be used as a simple cost effective technique to evaluate compositions for likely single crystal scintillator performance.
机译：通过固态合成制备了具有各种共掺杂物的多晶Gd_3Ga_3Al_2O_（12）：Ce（GGAG：Ce）颗粒，并通过X射线衍射，放射发光（RL），光致发光（PL），反射率和PL衰减测量进行了表征。 GGAG：Ce掺有B和Ba的颗粒比其他掺有Cod的颗粒具有更高的RL强度，而Ca掺合可以改善衰减时间但降低RL强度。这些结果与这些共掺杂物在GGAG：Ce单晶中的性能密切相关。与未掺杂的GGAG：Ce晶体相比，掺有B或Ba的单晶的发光率高约15％，而Ca掺杂的单晶体的发光率更低，但闪烁衰减时间更短（43 ns vs. 56 ns）。这些共掺杂物在两种基质形式下的一致性能表明，烧结丸可作为一种简单的成本有效的技术来评估可能的单晶闪烁体性能的成分。

著录项

  • 来源
    《Materials Science and Engineering》 |2015年第3期|20-26|共7页
  • 作者

    Fang Meng; Merry Koschan; Charles L. Melcher; Peter Cohen;

  • 作者单位

    Materials Science and Engineering, University of Tennessee, Knoxville, TN 37996, USA,Scintillation Materials Research Center, University of Tennessee, Knoxville, TN 37996, USA;

    Scintillation Materials Research Center, University of Tennessee, Knoxville, TN 37996, USA;

    Materials Science and Engineering, University of Tennessee, Knoxville, TN 37996, USA,Scintillation Materials Research Center, University of Tennessee, Knoxville, TN 37996, USA;

    Siemens Medical Solutions Molecular Imaging, Knoxville, TN 37932, USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Scintillator; Sintered pellets; Radioluminescence; Light yield; Decay time;

    机译：闪烁体烧结颗粒放射发光;发光量衰减时间;

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