An Automated High Intensity Ion Source for the AMS Facility at Purdue University

普渡大学 AMS 设施的自动化高强度离子源

• 批准号: 9018886
• 负责人: David Elmore
• 金额: $ 6.79万
• 依托单位: Purdue Research Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-12-01 至 1993-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9018886&HistoricalAwards=false
• 关键词: Automated; Intensity; Ion; Source; AMS

This award provides partial funding for the acquisition of a specialized cesium sputter ion source to be installed in the accelerator mass spectrometry facility at Purdue University. The ion source will be capable of producing high-intensity beams of ions of the elements beryllium, carbon, aluminum, chlorine, calcium and iodine from target samples loaded in a 60-sample cassette. The facility is based on a model FN tandem Van de Graff accelerator and, with the installation of the ion source, will be capable of measuring extremely small concentrations of the cosmogenic isotopes (such as carbon-14, for example) of the above elements. These isotopes have proven useful as tracers and for determining the ages of a wide variety of natural samples in which they are incorporated at very low concentration levels.

该奖项提供部分资金用于购买专门的铯溅射离子源，安装在普渡大学的加速器质谱设施中。该离子源能够从装有 60 个样品盒的目标样品中产生铍、碳、铝、氯、钙和碘元素的高强度离子束。该设施基于 FN 型串联范德格拉夫加速器，通过安装离子源，将能够测量上述元素的极低浓度的宇宙同位素（例如碳 14）。这些同位素已被证明可用作示踪剂，并可用于确定各种天然样品的年龄，这些同位素以非常低的浓度水平掺入其中。