亞微米級超低發射度注入器年度報告

謝大弢++朱鳳++黃文會

摘 要：該報告重點對超導光陰極注入器和常溫光陰極微波電子槍兩種有發展前景的超低發射度電子源進行研究。該年度完成了超導光陰極注入器的安裝和常溫光陰極微波電子槍的研制，進一步改進注入器各個子系統的穩定性和精度，針對兩種不同類型的光陰極注入器開展了束流實驗，得到了穩定的接近mA量級的電子束流和高品質的高峰值流強的電子束流；進行了紫外驅動激光的性能優化研究；在高平均流強超導注入器的驅動激光上發展了調光技術，便于強流電子束的束流測量與分析研究；研制了亞皮秒同步控制系統，進行了在線測試實驗。

關鍵詞：注入器 電子槍 發射度

Annual Report of Sub-micron Ultra-low Emittance Injector

Xie Datao Zhu Feng Huang Wenhui

（Peking University）

Abstract：Researches are carried out on two types of ultra-low emittance electron sources， superconducting photoinjector and normal conducting photocathode RF gun. Progresses are obtained in this year. Installation of superconducting photoinjector and the fabrication of normal conducting photocathode RF gun are finished. The instability and precision of sub-system are further updated. Beam loading experiments on the two injectors are carried out. Close to mA class and high peak current electron beams are obtained and stable. UV laser system is optimized. Laser adjusting technology is developed on high current superconducting injector， which is helpful to measurement and analysis of high current electron beam. Sub pico-second LLRF system is developed and the online experiments are carried out.

Key Words：Injector； Electron gun； Emittance

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