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|Title:||Bright spatially coherent synchrotron X-rays from a table-top source|
Martins, J. L.
Martins, S. F.
Fonseca, R. A.
Mangles, S. P. D.
Nagel, S. R.
Palmer, C. A. J.
Ta Phuoc, K.
Thomas, A. G. R.
Silva, L. O.
|Publisher:||Nature Publishing Group|
|Abstract:||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 Xrays 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) technology(1). Here we demonstrate the use of a new generation of laser-driven plasma accelerators(2), which accelerate high-charge electron beams to high energy in short distances(3-5), 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 wigglers(6,7) and thus has the potential to facilitate a myriad of uses across the whole spectrum of light-source applications.|
|Description:||WOS: 000284832600019 (Nº de Acesso Web of Science)|
“Prémio Científico ISCTE-IUL 2011”
|Publisher version:||The definitive version is available at: http://dx.doi.org/10.1038/nphys1789|
|Appears in Collections:||CTI-RI - Artigos em revistas científicas internacionais com arbitragem científica|
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