Research Initiation Award: Development of New Halide-based Rare-Earth Scintillators

研究启动奖：新型卤化物基稀土闪烁体的开发

• 批准号: 1401077
• 负责人: Uwe Hommerich
• 金额: $ 19.98万
• 依托单位: Hampton University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-06-01 至 2017-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1401077&HistoricalAwards=false
• 关键词: Research; Initiation; Award; Development; New

Research Initiation Awards provide support for junior and mid-career faculty at Historically Black Colleges and Universities who are building new research programs or redirecting and rebuilding existing research programs. It is expected that the award helps to further the faculty member's research capability and effectiveness, improves research and teaching at her home institution, and involves undergraduate students in research experiences. The award to Hampton University has potential impact in the areas of high energy physics, homeland security, and nuclear medicine through the development of new halide-based rare-earth detectors. The results of this project will add new knowledge on the optical, structural, electronic, and scintillation properties of the proposed materials, impacting the development of efficient radiation sensors. Every year, two undergraduate students will be directly involved in the research. Outreach activities are planned to local K-12 schools and community colleges.Scintillators have attracted enormous interest over the last decade for a wide range of applications such as homeland security, monitoring nuclear materials, X-ray imaging screens, high-energy particle physics experiments, industrial inspections, and gas exploration. Scintillators are materials that are capable of converting high energy radiation such as X-rays or gamma rays to visible light. The objective of this research is to develop new halide-based rare-earth scintillator materials. Divalent europium (Eu2+) doped lead halide based binary compounds such as PbCl2, PbBr2, PbI2 will be used as scintillation crystals. The work will also involve the comparison of high performing halide scintillators including Eu2+:SrI2 and Eu2+:BaI2 for better understanding the optical properties and the scintillation mechanisms. Spectroscopic characterization and the structural and electronic properties of Eu2+ doped lead halides will be evaluated as potential scintillator materials.

研究启动奖为历史上黑人学院和大学的初级和中级职业教师提供支持，他们正在建立新的研究项目或重新定向和重建现有的研究项目。预计该奖项有助于进一步提高教师的研究能力和效率，改善她所在机构的研究和教学，并使本科生参与研究经验。授予汉普顿大学的奖项通过开发新的基于卤化物的稀土探测器在高能物理、国土安全和核医学领域具有潜在的影响。该项目的结果将增加有关拟议材料的光学，结构，电子和闪烁特性的新知识，影响高效辐射传感器的开发。每年，两名本科生将直接参与研究。在过去的十年里，闪烁体在国土安全、核材料监测、X射线成像屏幕、高能粒子物理实验、工业检查和天然气勘探等广泛应用方面引起了极大的兴趣。闪烁体是能够将诸如X射线或伽马射线的高能辐射转换成可见光的材料。本研究的目的是开发新的卤化物基稀土闪烁体材料。二价铕（Eu2+）掺杂的卤化铅基二元化合物如PbCl2、PbBr2、PbI2将用作闪烁晶体。这项工作还将涉及高性能的卤化物闪烁体，包括Eu 2+：SrI2和Eu 2+：BaI2的比较，以更好地理解的光学性能和闪烁机制。光谱表征和Eu2+掺杂的铅卤化物的结构和电子性质将作为潜在的闪烁体材料进行评估。