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

该奖项为普渡大学加速器质谱分析设施中安装的专用铯溅射离子源提供部分资金。离子源将能够产生高强度的铍、碳、铝、氯、钙和碘元素离子束，这些元素来自装载在60个样品盒中的目标样品。该设备以FN型串联范德格拉夫加速器为基础，在安装离子源后，将能够测量上述元素的极小浓度的宇宙形成同位素（例如碳-14）。这些同位素已被证明是有用的示踪剂，并用于确定各种自然样品的年龄，其中它们以非常低的浓度加入。

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.