Journal
PHYSICAL REVIEW LETTERS
Volume 117, Issue 12, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.117.124801
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Funding
- National Natural Science Foundation of China [11127901, 11425418, 61521093, 11304271, 11205228, 11505263]
- State Key Laboratory Program of Chinese Ministry of Science and Technology
- Youth Innovation Promotion Association CAS
- [XDB16]
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By designing a structured gas density profile between the dual-stage gas jets to manipulate electron seeding and energy chirp reversal for compressing the energy spread, we have experimentally produced high-brightness high-energy electron beams from a cascaded laser wakefield accelerator with peak energies in the range of 200-600 MeV, 0.4%-1.2% rms energy spread, 10-80 pC charge, and similar to 0.2 mrad rms divergence. The maximum six-dimensional brightness B-6D,B-n is estimated as similar to 6.5 x 10(15) A/m(2)/0.1%, which is very close to the typical brightness of e beams from state-of-the-art linac drivers. These high-brightness high-energy e beams may lead to the realization of compact monoenergetic gamma-ray and intense coherent x-ray radiation sources.
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