期刊
LASER AND PARTICLE BEAMS
卷 29, 期 4, 页码 415-424出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0263034611000516
关键词
Fast electrons; Laser-plasma wakefield acceleration; Multi-pulse structure; Plasma source; Table top X-ray source
资金
- Swedish Consortium for Artificial Photosynthesis
- Swedish Kungliga Fysiografiska Sallskap
- Swedish Energy Agency
- Knut and Alice Wallenberg Foundation
- Swedish Research Council
- ERC [226136]
- MAXlas
- Sixth European Framework Programme [MEST-CT-2005-020356]
- European Research Council (ERC) [226136] Funding Source: European Research Council (ERC)
300 keV electron beams with energy peaked in the range 280-390 keV were generated by focusing a high contrast ratio but temporally double pulsed 800 nm ultrafast laser onto a flowing water jet under both helium atmosphere at ambient pressure and water aspirator vacuum conditions, using laser intensities in the range 10(15)-10(18) Wcm(-2). Their characteristics have been investigated as functions of inter-pulse delay, incidence geometry and laser pulse chirp. Shot-to-shot variation of the beams' equatorial and azimuthal distributions was also recorded in real time. Measurements of the emitted charge and energy have been performed. Secondary X-ray emission arising from impingement of the electron beams on the target chamber walls and other parts of the apparatus have been identified. Preliminary results after transition to a high repetition rate laser system have shown similar behavior. Approaches for improvements and applications are suggested.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据