16–21 Aug 2026
Daejeon Convention Center
Asia/Seoul timezone

Dark current simulation in a cryogenic photocathode gun

Not scheduled
2h
Daejeon Convention Center

Daejeon Convention Center

107 Expo-ro, Yuseong-gu, Daejeon (34125) South Korea
Poster Presentation MC1.A02 Electron and ion sources, guns, photo injectors, charge breeders Poster Session

Speaker

Cheng Wang (Shanghai Synchrotron Radiation Facility)

Description

High-gradient photocathode electron guns, serving as electron sources for advanced linear light sources, have been fully validated to enhance the overall performance of the system. As cryogenic electron guns emerge as the future trend for ultra-compact electron sources, the extremely high electric fields within the cavity induce significantly stronger dark currents. This paper simulates this effect and proposes preliminary methods for suppressing such dark currents.

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Author

Cheng Wang (Shanghai Synchrotron Radiation Facility)

Co-authors

Jianhao Tan (Shanghai Advanced Research Institute) Wencheng Fang (Shanghai Synchrotron Radiation Facility) Zihe Gao (Shanghai Synchrotron Radiation Facility)

Presentation materials

There are no materials yet.