Generation of intense and coherent sub-femtosecond X-ray pulses in electron storage rings
| Autor: | Gregor Schiwietz, G. Klemz, Markus Ries, Andreas Jankowiak, Roland Müller, Paul Goslawski, Michael Abo-Bakr, Terry Atkinson, Andreas Schälicke, Ji-Gwang Hwang |
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| Rok vydání: | 2020 |
| Předmět: |
lcsh:Medicine
Synchrotron radiation 02 engineering and technology 01 natural sciences Article Plasma physics law.invention Optics law 0103 physical sciences High harmonic generation Statistical physics thermodynamics and nonlinear dynamics lcsh:Science 010306 general physics Physics Multidisciplinary Accelerator research and development business.industry lcsh:R Particle physics Fermi energy 021001 nanoscience & nanotechnology Atomic electron transition Achromatic lens Picosecond Femtosecond Physics::Accelerator Physics lcsh:Q 0210 nano-technology business Storage ring |
| Zdroj: | Scientific Reports, Vol 10, Iss 1, Pp 1-7 (2020) Scientific Reports |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/s41598-020-67027-0 |
| Popis: | Temporally short X-ray pulses are an indispensable tool for the study of electron transitions close to the Fermi energy and structural changes in molecules undergoing chemical reactions which take place on a time-scale of hundreds of femtoseconds. The time resolution of experiments at 3rd generation light sources which produce intense synchrotron radiation is limited fundamentally by the electron-bunch length in the range of tens of picoseconds. Here we propose a new scheme for the generation of intense and coherent sub-femtoseconds soft X-ray pulses in storage rings by applying the Echo-Enabled Harmonic Generation (EEHG) method. Many issues for obtaining the EEHG structure such as two modulators and a radiator are solved by a paradigm shift in an achromatic storage ring cell. Numerical demonstration of the feasibility of the scheme for the BESSY II beam parameters is presented. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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