Refurbishing the 4.5 MV Charging System of the Tandem Accelerator of the Edwards Accelerator Laboratory

该奖项是根据2009年《美国复苏和再投资法案》(公法111-5)提供资金的。该奖项通过升级爱德华兹加速器实验室的Van de Graaff串列加速器的能力，以Pelletron充电系统取代过时的、容易出现故障的充电带系统，支持俄亥俄大学的研究基础设施，Pelletron充电系统使用充电链而不是皮带。加速器的充电皮带已经不再商业化生产，到目前为止，人们一直在寻求非最佳的替代方案，例如使用过的皮带或为其他目的生产的皮带。串列加速器充电系统的升级将使离子束能量更加稳定，允许在最大额定电压(4.5 mV)下运行，实现更可预测的维护，并提供可靠的备件来源。总而言之，这些方面将提高加速器支持的研究工作的可靠性、生产率、研究和培训以及技术能力。大多数应用研究利用了我们实验室现有的中子物理能力，包括与核反应堆、库存管理、国土安全和材料科学相关的测量。该设施的用户包括俄亥俄大学的本科生和研究生、博士后和教职员工，以及来自大学、国家实验室和行业的外部用户。

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). This award supports research infrastructure at Ohio University through an upgrade to the capabilities of the van de Graaff tandem accelerator at the Edwards Accelerator Laboratory by replacing the out-dated, trouble-prone charging belt system with a Pelletron charging system, which uses a charging chain rather than a belt. Charging belts for the accelerator are no longer produced commercially, and to date non-optimal alternatives have been pursued such as used belts or belts produced for other purposes. The upgrade to the charging system for the tandem accelerator will make the ion beam energy more stable, allow running at the maximum rated voltage (4.5 MV), enable more predictable maintenance, and provide a reliable source of spare parts. Together, these aspects will enhance reliability, productivity, research and training, and technical capability for research efforts enabled by the accelerator. The majority of the applied research takes advantage of the neutron physics capabilities that exist in our laboratory and includes measurements relevant to nuclear reactors, stockpile stewardship,homeland security, and materials science. Users of the facility include Ohio University students, both undergraduate and graduate, postdocs, and faculty, as well as outside users from universities, national laboratories, and industry.