منابع مشابه
X-ray free-electron lasers
In a free-electron laser (FEL) the lasing medium is a high-energy beam of electrons flying with relativistic speed through a periodic magnetic field. The interaction between the synchrotron radiation that is produced and the electrons in the beam induces a periodic bunching of the electrons, greatly increasing the intensity of radiation produced at a particular wavelength. Depending only on a p...
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The history of the living world can be summarised as an elaboration of ever more perfect eyes within a Cosmos in which there is always something new to be seen (Teilhard du Chardin, 1955). Today, the bottleneck in the atomic resolution imaging of biological systems is a fundamental need for crystals. This limits the scope of detailed structural analysis to macromolecules and macromolecular asse...
متن کاملZone Plates for Hard X-Ray Free-Electron Lasers
Hard x-ray free-electron lasers are novel sources of coherent x-rays with unprecedented brightness and very short pulses. The radiation from these sources enables a wide range of new experiments that were not possible with previous x-ray sources. Many of these experiments require the possibility to focus the intense x-ray beam onto small samples. This Thesis investigates the possibility to use ...
متن کاملA simplified description of X-ray free-electron lasers
It is shown that an elementary semi-quantitative approach explains essential features of the X-ray free-electron laser mechanism, in particular those of the gain and saturation lengths. Using mathematical methods and derivations simpler than complete theories, this treatment reveals the basic physics that dominates the mechanism and makes it difficult to realise free-electron lasers for short w...
متن کاملSingle-shot spectrometry for x-ray free-electron lasers.
An experimental scheme to realize single-shot spectrometry for the diagnostics of x-ray free-electron lasers (XFELs) is presented. The combination of an ultraprecisely figured mirror and a perfect crystal form a simple, high-precision spectrometer that can cover an energy range from a few eV to a hundred eV with high resolution. The application of the spectrometer to determine XFEL pulse widths...
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ژورنال
عنوان ژورنال: IEEE Transactions on Plasma Science
سال: 2018
ISSN: 0093-3813,1939-9375
DOI: 10.1109/tps.2018.2827301