Non-linear QED approach for betatron radiation in a laser wakefield accelerator

被引：1

作者：

Ong, J. F. ^{[1
]}

Berceanu, A. C. ^{[1
,2
]}

Grigoriadis, A. ^{[2
,3
]}

Andrianaki, G. ^{[2
,4
]}

Dimitriou, V. ^{[2
,5
]}

Tatarakis, M. ^{[2
,6
]}

Papadogiannis, N. A. ^{[2
,5
]}

Benis, E. P. ^{[2
,3
]}

机构：

[1] Horia Hulubei Natl Inst Phys & Nucl Engn IFIN HH, Extreme Light Infrastruct Nucl Phys ELI NP, 30 Reactorului St, RO-077125 Bucharest, Romania

[2] Hellen Mediterranean Univ, Univ Res & Innovat Ctr, Inst Plasma Phys & Lasers, Rethimnon 74100, Crete, Greece

[3] Univ Ioannina, Dept Phys, Ioannina 45110, Greece

[4] Tech Univ Crete, Sch Prod Engn & Management, Khania 73100, Greece

[5] Hellen Mediterranean Univ, Dept Mus Technol & Acoust, Phys Acoust & Optoacoust Lab, Rethimnon 74100, Greece

[6] Hellen Mediterranean Univ, Dept Elect Engn, Khania 73133, Greece

来源：

SCIENTIFIC REPORTS | 2024年 / 14卷 / 01期

关键词：

IN-CELL SIMULATION; CODE; COHERENT; RAYS;

D O I：

10.1038/s41598-023-50030-6

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Laser plasma-based accelerators provide an excellent source of collimated, bright, and adequately coherent betatron-type x-ray pulses with potential applications in science and industry. So far the laser plasma-based betatron radiation has been described within the concept of classical Lienard-Wiechert potentials incorporated in particle-in-cell simulations, a computing power-demanding approach, especially for the case of multi-petawatt lasers. In this work, we describe the laser plasma-based generation of betatron radiation at the most fundamental level of quantum mechanics. In our approach, photon emission from the relativistic electrons in the plasma bubble is described within a nonlinear quantum electrodynamics (QED) framework. The reported QED-based betatron radiation results are in excellent agreement with similar results using Lienard-Wiechert potentials, as well as in very good agreement with betatron radiation measurements, obtained with multi-10-TW lasers interacting with He and multielectron N-2 gas targets. Furthermore, our QED approach results in a dramatic reduction of the computational runtime demands, making it a favorable tool for designing betatron radiation experiments, especially in multi-petawatt laser facilities.

引用

页数：11