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Generation of stable subfemtosecond hard x-ray pulses with optimized nonlinear bunch compression
- Source :
- Physical Review Special Topics. Accelerators and Beams, Vol 17, Iss 12, p 120703 (2014)
- Publication Year :
- 2014
- Publisher :
- American Physical Society, 2014.
-
Abstract
- In this paper, we propose a simple scheme that leverages existing x-ray free-electron laser hardware to produce stable single-spike, subfemtosecond x-ray pulses. By optimizing a high-harmonic radio-frequency linearizer to achieve nonlinear compression of a low-charge (20 pC) electron beam, we obtain a sharp current profile possessing a few-femtosecond full width at half maximum temporal duration. A reverse undulator taper is applied to enable lasing only within the current spike, where longitudinal space charge forces induce an electron beam time-energy chirp. Simulations based on the Linac Coherent Light Source parameters show that stable single-spike x-ray pulses with a duration less than 200 attoseconds can be obtained.
- Subjects :
- Nuclear and particle physics. Atomic energy. Radioactivity
QC770-798
Subjects
Details
- Language :
- English
- ISSN :
- 10984402
- Volume :
- 17
- Issue :
- 12
- Database :
- Directory of Open Access Journals
- Journal :
- Physical Review Special Topics. Accelerators and Beams
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.18044da3f3e74cd5801530e5994fb419
- Document Type :
- article
- Full Text :
- https://doi.org/10.1103/PhysRevSTAB.17.120703