期刊
PHYSICAL REVIEW LETTERS
卷 110, 期 18, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.110.185006
关键词
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资金
- DFG-Project Transregio [TR18]
- Association EURATOM-Max-Planck-Institut fuer Plasmaphysik
- Munich Centre for Advanced Photonics (MAP)
We report the generation of stable and tunable electron bunches with very low absolute energy spread (Delta E approximate to 5 MeV) accelerated in laser wakefields via injection and trapping at a sharp downward density jump produced by a shock front in a supersonic gas flow. The peak of the highly stable and reproducible electron energy spectrum was tuned over more than 1 order of magnitude, containing a charge of 1-100 pC and a charge per energy interval of more than 10 pC/MeV. Laser-plasma electron acceleration with Ti:sapphire lasers using this novel injection mechanism provides high-quality electron bunches tailored for applications.
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