Environmental Radiation Monitoring Experiments for Radiation Detection Laboratories

辐射检测实验室环境辐射监测实验

• 批准号: 9650021
• 负责人: William Johnson
• 金额: $ 3.13万
• 依托单位: University of Nevada Las Vegas
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-06-01 至 1998-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9650021&HistoricalAwards=false
• 关键词: Environmental; Radiation; Monitoring; Experiments; Detection

Radiation detection laboratory exercises in undergraduate health physics programs have traditionally been limited to experiments examining the basic properties of radioactive decay, the effects of shielding, and detector characteristics. Applied undergraduate laboratories are normally designed with a curriculum that supports reactor health physics and involve experiments using basic radiation monitoring equipment in such a setting. In this project, environmental health physics experiments are being integrated into junior- and senior-level laboratory courses required of health physics majors. Demonstrations designed to stimulate the interest of non-science-majors in applied radiation protection are being included in introductory courses. Experiments utilizing an alpha/beta discriminating liquid scintillation system and thermoluminescent dosimeters (TLDs) are being added to undergraduate health physics laboratories. Demonstrations of liquid scintillation counting are being performed in an introductory health physics course for nonmajors. Long-term experiments examining the sources and doses resulting from background radiation are being designed for use in courses for both majors and nonmajors. Equipment involved in this project is also being used to accommodate the growing number of undergraduate research projects in environmental radiation that have previously relied on borrowed equipment or off-site analysis. Over the next decade, many undergraduate health physics programs may begin to revise curriculums to emphasize environmental applications. With this in mind, the experiments developed or improved under this program can be evaluated and the successes and difficulties reported to other health programs at national meetings and through literature.

传统上，本科生健康物理课程中的辐射探测实验室练习仅限于检查放射性衰变的基本特性、屏蔽效应和探测器特性的实验。 应用本科实验室通常设计有支持反应堆健康物理学的课程，并涉及在这种环境中使用基本辐射监测设备的实验。 在这个项目中，环境健康物理实验被纳入初级和高级实验室课程所需的健康物理专业。 旨在激发非理科专业学生对应用辐射防护的兴趣的演示正在纳入入门课程。 利用α/β鉴别液体闪烁系统和热释光剂量计（TLD）的实验正在增加到本科生健康物理实验室。 液体闪烁计数的演示正在为非专业的健康物理学入门课程中进行。 正在设计长期实验，检查本底辐射的来源和剂量，供专业和非专业课程使用。 参与该项目的设备也被用于容纳越来越多的环境辐射本科生研究项目，这些项目以前依赖于借来的设备或场外分析。 在接下来的十年里，许多本科生健康物理课程可能会开始修改大纲，以强调环境应用。考虑到这一点，可以对在该方案下开展或改进的实验进行评估，并在全国会议上和通过文献向其他卫生方案报告成功和困难。