RUI: The Role of Low-Energy Electrons in High-Energy Radiolysis

RUI：低能电子在高能辐射分解中的作用

• 批准号: 1012674
• 负责人: Christopher Arumainayagam
• 金额: $ 39万
• 依托单位: Wellesley College
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-15 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1012674&HistoricalAwards=false
• 关键词: RUI; Role; Low; Energy; Electrons

In this project supported by the Chemical Structure, Dynamics and Mechanisms Program of the Chemistry Division, Professor Christopher Arumainayagam of Wellesley College and his undergraduate students will employ infrared spectroscopy, temperature programmed desorption (TPD), and isothermal electron stimulated desorption (ESD) to characterize the effects of low-energy electrons on thin films of halomethanes, methanol and molybdenum hexacarbonyl. The underlying hypothesis of the research is that much of the damage that occurs in materials exposed to ionizing radiation or high energy particles is due to secondary electrons which, while lower in energy per particle, are generated in much greater abundance relative to the primary ionizing photon or particle. The results of this research will not only advance the specific chemistry field of electron-induced reactions, but will be relevant to other areas of science and technology, including our understanding of radiation damage in biological systems, electron beam lithography for microelectronics technology, new environmental remediation techniques, and atmospheric reaction cycles. Importantly, these investigations will also provide a vehicle for research training of undergraduate scientists.

在化学结构，动力学和机制计划支持的该项目中，韦尔斯利学院的克里斯托弗·阿鲁玛纳亚加姆教授及其本科生将采用红外光谱，温度编程的解吸（TPD），以及等温度的电子吸收（ESD），以表征莫尔的薄膜效果，并表征了冰淇淋的影响。己酮。该研究的基本假设是，暴露于电离辐射或高能颗粒的材料中发生的许多损害是由于二次电子引起的，尽管次级电子较低，但相对于初级电离光子或粒子，较低的每个粒子的能量却更大。这项研究的结果不仅将推进电子诱导的反应的特定化学领域，而且将与其他科学和技术领域有关，包括我们对生物系统中的辐射损害的理解，微电学技术的电子光束光刻，新的环境修复技术以及大气反应周期。重要的是，这些调查还将为本科科学家的研究培训提供工具。