Development of a electron gun for a surpeconducting accelerator based positron source

• Project/Area Number: 26790068
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: General applied physics
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: O'Rourke Brian 国立研究開発法人産業技術総合研究所, 分析計測標準研究部門, 主任研究員 (60586551)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2014: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
• Keywords: RF電子銃 / 超伝導加速器 / カーボンナノ構造 / 電子銃 / 電界放出 / 高周波

Outline of Final Research Achievements

We have designed and manufactured a 500 MHz coaxial RF electron gun based on extensive simulations with LLNL superfish program. The cavity was used in conjunction with a carbon nanostructured field emitter cathode in an attempt to develop an RF electron gun for an superconducting accelerator. We measured the electron current as a function of RF power. We are now characterizing the pulse structure of the emitted electrons and will connect the RF electron gun to the SCA in the near future.