Instrument to Measure Soil Contaminants and Transport Characteristics

测量土壤污染物和迁移特性的仪器

• 批准号: 9460131
• 负责人: John Bayless
• 金额: $ 7.5万
• 依托单位: First Point Scientific, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-02-01 至 1996-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9460131&HistoricalAwards=false
• 关键词: Instrument; Measure; Soil; Contaminants; Transport

This Small Business Innovation Research Phase I project will address a major problem for environmental restoration: the low cost measurement of soil contaminants and their transport characteristics. First Point Scientific, Inc. proposes to develop a novel Neutron/X-ray Spectral (NXS) logging instrument, which will be used with a cone penetrometer (a probe which is hydraulically driven into the ground), for this purpose. This instrument uses passive and neutron-induced gamma-ray spectroscopy and x-ray spectroscopy techniques to make the needed measurements. It is expected to provide high sensitivity (e.g., Hg @ 0.2-2 ppm; Cl @ 3-20 ppm), for both detection and monitoring activities, without the use of radioactive materials. It will also provide attractive sampling volumes and depth resolution. The objective of the proposed project is to determine the technical feasibility of the NXS concept. This will be accomplished by performing two tasks: (1) develop the preliminary design for a laboratory prototype NXS instrument and (2) evaluate its performance, in terms of minimum detection levels, through detailed computer modeling. Los Alamos National Laboratory, Westinghouse Hanford Co., and Cornell University personnel will contribute to these tasks. Successful demonstrations of feasibility in Phase I will provide a firm foundation for construction and testing of the laboratory prototype instrument in Phase II. This project responds to the 1994 Solicitation emphasis on National Critical Technologies in the area of Pollution Minimization and Remediation.

这个小企业创新研究第一阶段项目将解决环境恢复的一个主要问题：土壤污染物及其迁移特征的低成本测量。为此，First Point Scientific, Inc. 提议开发一种新型中子/X 射线光谱 (NXS) 测井仪器，该仪器将与圆锥贯入仪（液压驱动进入地下的探头）一起使用。该仪器使用被动和中子感应伽马射线光谱和 X 射线光谱技术来进行所需的测量。它有望为检测和监测活动提供高灵敏度（例如，Hg @ 0.2-2 ppm；Cl @ 3-20 ppm），而无需使用放射性材料。它还将提供有吸引力的采样量和深度分辨率。拟议项目的目标是确定 NXS 概念的技术可行性。这将通过执行两项任务来完成：(1) 开发实验室原型 NXS 仪器的初步设计；(2) 通过详细的计算机建模评估其最低检测水平的性能。洛斯阿拉莫斯国家实验室、西屋汉福德公司和康奈尔大学的人员将为这些任务做出贡献。一期可行性论证的成功将为二期实验室原型仪器的建设和测试提供坚实的基础。该项目响应 1994 年征集重点关注污染最小化和修复领域的国家关键技术。