FETS completion

质子，亚原子粒子是物质的组成部分之一，可以通过一种叫做质子加速器的机器获得大量的能量。这种高能质子可以用于各种各样的应用，从生产用于治疗疾病的放射性同位素，到研究有利于工业和科学的物质结构。任何质子加速器复合体的第一步都是所谓的质子驱动器。前端测试台（FETS），正在建立在卢瑟福阿普尔顿实验室（RAL）在英国，是一个项目，以创建一个新的国家的最先进的质子驱动器，将需要为了提供质子加速器与更强烈，更高的能量束为未来的应用。场效应晶体管产生一束带负电荷的氢离子，这些氢离子被切成更小的束。需要这种斩波是为了更安全和更容易地加速通过从氢离子束中去除电子而获得的质子。FETS合作涉及来自英国的科学家和工程师的专业团队，并促进了与欧洲核子研究中心（CERN）、FNAL、ESS和CNS等国际领先加速器机构的合作。在本提案中，我们寻求及时完成FETS的建设。氢离子源和初始束聚焦组件已经建成并成功投入使用。剩下的工作是安装、测试和调试加速结构和斩波器系统，并评估整个测试台的性能。在成功完成该项目后，FETS可以用作质子驱动器，进一步开发质子加速器系统，用于工业、医学和科学的广泛应用。

Protons, subatomic particles that are one of the building blocks of matter, can be given large amounts of energy by passing through a machine called a proton accelerator. Such high energy protons can be used in a wide variety of applications, from the production of radioisotopes for the treatment of disease, to the investigation of the structure of matter that benefits both industry and science. The first step in any proton accelerator complex is the so-called proton driver. The Front End Test Stand (FETS), being built at the Rutherford Appleton Laboratory (RAL) in the UK, is a project to create a new state-of-the-art proton driver that will be needed in order to provide proton accelerators with more intense, higher energy beams for future applications. The FETS produces a beam of negatively-charged hydrogen ions that is chopped up into smaller bunches. This chopping is needed in order to make it safer and easier to accelerate the protons that are obtained by removing the electrons from the hydrogen ion beam. The FETS collaboration involves a dedicated team of scientists and engineers from the UK, and has stimulated collaborations with leading international accelerator institutes such as CERN, FNAL, ESS and CNS.In this proposal, we seek to complete the construction of the FETS in a timely manner. The hydrogen ion source and initial beam focusing components have already been built and successfully commissioned. The remaining work is to install, test and commission the accelerating structures and chopper systems, and to evaluate the performace of the complete test stand. Upon successful completion of this project, the FETS can be used as a proton driver for further developments in proton accelerator systems for a wide range of applications in industry, medicine and science.