Simulation study of a bright attosecond $\gamma$-ray source generation by irradiating an intense laser on a cone target
| Autor: | Zhang, Cui-Wen, Zhu, Yi-Xuan, Lv, Jian-Feng, Xie, Bai-Song |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Appl. Sci. 12, 4361 (2022) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.3390/app12094361 |
| Popis: | The interaction between an ultrastrong laser and a cone-like target is an efficient approach to generate high power radiations like attosecond pulses and terahertz waves. The object is to study the $\gamma$-ray generation under this configuration with the help of 2D particle-in-cell simulations. It is deciphered that electrons experience three stages including injection, acceleration and scattering to emit high energy photons via nonlinear compton scattering (NCS). These spatial-separated attosecond $\gamma$-ray pulses own high peak brilliance ($>10^{22}$ photons/($\rm s\cdot\rm mm^2\cdot\rm mrad^2\cdot0.1\%BW$)) and high energy (6MeV) under the case of normalized laser intensity $a_0=30$ ($\mathrm{I=2\times10^{21}W/cm^2}$). Besides, the cone target turns out to be an order of magnitude more efficient in energy transfer compared with a planar one. Comment: 14 pages, 6 figures |
| Databáze: | arXiv |
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