Studies on a Laser Driven Photoemissive High-Brightness Electron Source and Novel Photocathodes

Geng Rongli; Song Jinhu; Yu Jin

Chinese Physics C> 1997, Vol. 21> Issue(1) : 67-74

Studies on a Laser Driven Photoemissive High-Brightness Electron Source and Novel Photocathodes

Institute of Heavy Ion Physics,Peking University,Beijing 100871

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Abstract：
A laser driven photoemissive high-brightness electron source at Peking University is reported.Through a DC accelerating gap of 100kV voltage,the device is capable of delivering high-brightness electron beam of 35—100ps pulse duration when irradiated with a mode-locked YAG laser.The geometry of the gun is optimized with the aid of simulation codes EGUN and POISSON.The results of experimental studies on ion implanted photocathode and cesium telluride photocathode are given.The proposed laser driven superconducting RF gun is also discussed.

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Geng Rongli, Song Jinhu and Yu Jin. Studies on a Laser Driven Photoemissive High-Brightness Electron Source and Novel Photocathodes[J]. Chinese Physics C, 1997, 21(1): 67-74.

Geng Rongli, Song Jinhu and Yu Jin. Studies on a Laser Driven Photoemissive High-Brightness Electron Source and Novel Photocathodes[J]. Chinese Physics C, 1997, 21(1): 67-74. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Studies on a Laser Driven Photoemissive High-Brightness Electron Source and Novel Photocathodes

Corresponding author: Geng Rongli,

Institute of Heavy Ion Physics,Peking University,Beijing 100871

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1997-01-05

Abstract: A laser driven photoemissive high-brightness electron source at Peking University is reported.Through a DC accelerating gap of 100kV voltage,the device is capable of delivering high-brightness electron beam of 35—100ps pulse duration when irradiated with a mode-locked YAG laser.The geometry of the gun is optimized with the aid of simulation codes EGUN and POISSON.The results of experimental studies on ion implanted photocathode and cesium telluride photocathode are given.The proposed laser driven superconducting RF gun is also discussed.