Feasibility Experiments for the Induction Synchrotron Accelerator Concept

存在对低成本电子加速器的日益增长的需求， 紧凑、高效且能够在高电流下工作， 能量范围为10-1000 MeV。 我们建议 研究新型感应同步加速器（伊萨） 目的是为了满足这一需求。 伊萨通过以下方式运作： 通过感应使电子束脉冲（30 ns长）再循环- 型加速单元，其由在10处的脉冲发生器驱动 MHz. 闭合轨道的运输磁铁设计与 传统的同步加速器和光束脉冲被注入和提取 使用冲击磁铁。 伊萨可以在高达5 kHz的频率下回收， 产生高平均射束功率。 伊萨概念的关键问题 在许多情况下实现所需的脉冲重复率 再循环。 我们建议开发一种新的脉冲发生器概念 基于高速功率MOSFET开关的使用， 磁脉冲压缩技术 以下研究任务 将在第一阶段进行，以评估技术可行性， 伊萨概念：（1）演示了使用串联- 功率MOSFET器件的并行阵列适用于伊萨 应用;（2）进行实验，以表征和评估 小规模伊萨驱动器电路;（3）开发用于 第二阶段ISA原理验证实验。 如果成功，这 这项工作将验证该系统关键方面的技术可行性， 伊萨概念。

There is an increasing need for low cost electron accelerators which are compact, efficient and capable of operating at high current and power levels in the energy range of 10-1000 MeV. We propose to perform research on the new Induction Synchrotron Accelerator (ISA) concept with the objective of meeting this need. The ISA operates by recirculating an electron beam pulse ( 30 ns long) through induction- type acceleration cells which are driven by a pulse generator at 10 MHz. The closed-orbit, transport magnet design is similar to that for conventional synchrotrons, and beam pulses are injected and extracted using kicker magnets. An ISA can be recycled at up to 5 kHz to generate high average beam powers. The key issue for the ISA concept is achieving the required pulse repetition rate over many recirculations. We propose to develop a new pulse generator concept based on the use of high-speed, power-MOSFET switches combined with magnetic pulse compression techniques. The following research tasks will be performed in Phase I to assess the technical feasibility of the ISA concept: (1) demonstrate that switches formed using series- parallel arrays of power-MOSFET devices are suitable for ISA applications; (2) perform experiments to characterize and evaluate a small-scale ISA driver circuit and (3) develop a conceptual design for a Phase II proof-of-principle ISA experiment. If successful, this work will verify the technical feasibility of critical aspects of the ISA concept.