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Bright spatially coherent synchrotron X-rays from a table-top source

future72 添加于 2010-11-25 13:02 | 1704 次阅读 | 0 个评论

作者
Kneip S, McGuffey C, Martins JL, Martins SF, Bellei C, Chvykov V, Dollar F, Fonseca R, Huntington C, Kalintchenko G, Maksimchuk A, Mangles SPD, Matsuoka T, Nagel SR, Palmer CAJ, Schreiber J, Phuoc KT, Thomas AGR, Yanovsky V, Silva LO, Krushelnick K, Najmudin Z
摘要
Each successive generation of X-ray machines has opened up new frontiers in science, such as the first radiographs and the determination of the structure of DNA. State-of-the-art X-ray sources can now produce coherent high-brightness X-rays of greater than kiloelectronvolt energy and promise a new revolution in imaging complex systems on nanometre and femtosecond scales. Despite the demand, only a few dedicated synchrotron facilities exist worldwide, in part because of the size and cost of conventional (accelerator) technology1. Here we demonstrate the use of a new generation of laser-driven plasma accelerators2, which accelerate high-charge electron beams to high energy in short distances3, 4, 5, to produce directional, spatially coherent, intrinsically ultrafast beams of hard X-rays. This reduces the size of the synchrotron source from the tens of metres to the centimetre scale, simultaneously accelerating and wiggling the electron beam. The resulting X-ray source is 1,000 times brighter than previously reported plasma wigglers6, 7 and thus has the potential to facilitate a myriad of uses across the whole spectrum of light-source applications.
详细资料
- 文献种类:期刊
- 期刊名称: Nature Physics
- 期刊缩写: Nat Phys
- 期卷页: 2010年
- ISBN: 1745-2473
标签

x-ray
相关链接 DOI URL