Acquisition of a Tandem Accelerator for the Support of Materials Research Programs

9512599 Weete奥本大学核科学中心的离子加速器实验室将通过购买配备射频（rf）交换离子源、高压源注入系统和高能四极聚焦透镜的串联加速器进行升级。这台新机器取代了一台已有26年历史的加速器，它已接近使用寿命。加速器实验室的主要功能是支持不同学院和部门的各种材料研究项目。这些努力主要集中在薄膜系统和相互作用上，如碳化硅和III-V化合物半导体外延膜的表征，绝缘体中的离子诱导辐射损伤，材料氧化过程，以及电子封装和金刚石薄膜技术。加速器实验室可用于材料研究的分析技术包括质子诱导x射线发射（PIXE）、卢瑟福后向散射光谱（RBS）、光离子通道（LIC）、快中子活化分析（FNAA）和一些离子注入能力。大多数这些技术将在升级后的设备中可用，新机器将促进扩展分析能力的开发，如中子激活/飞行时间技术。新的串联加速器将使实验室能够通过改进现代分析技术，为材料科学项目提供有效的研究支持。它取代了一个古老的单位，目前消耗大量的物质和人力资源的维护。加速器实验室与附近的少数民族机构有着悠久的合作研究历史，该项目长期致力于支持少数民族学生在物理科学方面的教育机会，新加速器将加强这一点。＊＊＊

9512599 Weete The ion accelerator laboratory at the Nuclear Science Center at Auburn University will be upgraded through acquisition of a tandem accelerator equipped with a radio frequency (rf) exchange ion source, a high voltage source injector system, and a high energy quadrupole focusing lens. The new machine replaces a twenty-six year old accelerator which is nearing the end of its serviceable life. The accelerator laboratory functions primarily in support of various materials research programs in different colleges and departments. These efforts focus primarily on thin film systems and interactions, such as silicon carbide and III-V compound semiconductor epitaxial film characterization, ion- induced radiation damage in insulators, materials oxidation processes, and electronics packaging and diamond film technology. Analysis techniques available in the accelerator laboratory for materials studies include proton induced x-ray emission (PIXE), Rutherford backscattering spectrometry (RBS), light ion channeling (LIC), fast neutron activation analysis (FNAA), and some ion implantation capabilities. Most of these techniques will be available in the upgraded facility, and the new machine will facilitate development of expanded analysis capabilities such as neutron activation/time-of-flight techniques. %%% The new tandem accelerator will allow the laboratory to provide efficient research support for materials science programs through improved access to modern analytical techniques. It replaces an ancient unit which currently consumes large material and human resources for its maintenance. The accelerator laboratory has a long history of collaborative research with nearby minority institutions, and the program has a long-term commitment in support of educational opportunities for minority students in the physical sciences which the new accelerator will enhance. ***