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arXiv Open Access 2021

Observation of high efficiency Betatron radiation from femtosecond petawatt laser irradiated near critical plasmas

J. H. Tan Y. F. Li D. Z. Li J. Feng Y. J. Li +8 lainnya
Lihat Sumber

Abstrak

We present an experimental demonstration of high conversion efficiency Betatron x-ray radiation from petawatt laser irradiated near critical plasmas. Direct laser acceleration serves as the dominant regime when laser pulse of ~5e20 W/cm2 intensity is focused into plasmas with electron density of 3e20 /cm3. Electron beam with a charge of ~35 nC is accelerated up to a maximum energy of 70 MeV and emit x-rays when oscillating in the laser field. The deduced energy conversion efficiency from laser to x-rays is up to 1e-4, orders of magnitude higher than other betatron regimes. Enhancement of acceleration and radiation with sharp plasma density boundary is also obtained and further interpretated with 2D particle-in-cell simulations.

Topik & Kata Kunci

physics.plasm-ph physics.acc-ph

Penulis (13)

J

J. H. Tan

Y

Y. F. Li

D

D. Z. Li

J

J. Feng

Y

Y. J. Li

W

W. J. Zhou

Y

Y. H. Yan

Z

Z. M. Zhang

B

B. L. Zhang

J

J. G. Wang

Y

Y. Q. Gu

Y

Y. T. Li

L

L. M. Chen

Format Sitasi

APA MLA BibTeX
Tan, J.H., Li, Y.F., Li, D.Z., Feng, J., Li, Y.J., Zhou, W.J. et al. (2021). Observation of high efficiency Betatron radiation from femtosecond petawatt laser irradiated near critical plasmas. https://arxiv.org/abs/2109.12467

Akses Cepat

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Informasi Jurnal
Tahun Terbit
2021
Bahasa
en
Sumber Database
arXiv
Akses
Open Access ✓