Generation of Preformed Plasma Channel for GeV-Scaled Electron Accelerator by Ablative Capillary Discharges

DENG Aihua (邓爱华); LIU Mingwei (刘明伟); LIU Jiansheng (刘建胜); LU Xiaoming (陆效明); XIA Changquan (夏长权); XU Jiancai (徐建彩); ANG Cheng (王成); SHEN Baifei (沈百飞); LI Ruxin (李儒新); et al

Plasma Science and Technology > 2011 > 13(3): 362-366.

DENG Aihua (邓爱华), LIU Mingwei (刘明伟), LIU Jiansheng (刘建胜), LU Xiaoming (陆效明), XIA Changquan (夏长权), XU Jiancai (徐建彩), ANG Cheng (王成), SHEN Baifei (沈百飞), LI Ruxin (李儒新), et al. Generation of Preformed Plasma Channel for GeV-Scaled Electron Accelerator by Ablative Capillary Discharges[J]. Plasma Science and Technology, 2011, 13(3): 362-366.

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Generation of Preformed Plasma Channel for GeV-Scaled Electron Accelerator by Ablative Capillary Discharges

1 State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China 2 School of physics, Hunan University of Science and Technology, Xiangtan 310027, China 3 High Energy Accelerator Research Organization (KEK), Ibaraki 305-0801, Japan

Funds: supported by National Natural Science Foundation of China (Nos. 10974214, 60921004), the National Basic Research Program of China (No. 2006CB806000), the Chinese Academy of Sciences, and the Shanghai Commission of Science and Technology of China (Nos. 06DZ22015, 0652nm005)

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Received Date: May 05, 2010

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Abstract

Abstract

Generation of plasma channels by low jitter ablative capillary discharges is investi- gated experimentally in details. A time-resolved evolution and radial distributions of the electron density are measured, and proof-of-principle optical guiding experiment is conducted. A proper time window for optical guiding of a femtosecond laser pulse is found. The generated low density, long plasma channel is believed to be useful in the applications as GeV-class channel-guided laser wake¯eld accelerators and compact X-ray femetosecond coherent radiation sources.
- plasmas channel,
- capillary discharge,
- axial laser ignition,
- optical guiding

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