Quasi-monoenergetic ion acceleration and neutron generation from laser-driven transverse collisionless shocks

被引：1
|
作者：
Kordell, P. [1 ]
Zulick, C. [1 ,2 ]
Hussein, A. E. [1 ]
Arefiev, A. V. [3 ]
Batson, T. [1 ]
Cobble, J. [4 ]
Glebov, V. [5 ]
Haberberger, D. [5 ]
Stoeckl, C. [5 ]
Nilson, P. M. [5 ]
Krushelnick, K. [1 ]
Willingale, L. [1 ]
机构：
[1] Univ Michigan, Gerard Mourou Ctr Ultrafast Opt Sci, Ann Arbor, MI 48109 USA
[2] Naval Res Lab, Plasma Phys Div, Washington, DC 20375 USA
[3] Univ Calif San Diego, Dept Mech & Aerosp Engn, San Diego, CA 92093 USA
[4] Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA
[5] Univ Rochester, Lab Laser Energet, Rochester, NY 14627 USA
来源：
PHYSICS OF PLASMAS | 2024年 / 31卷 / 10期
基金：
英国工程与自然科学研究理事会;
关键词：
Accelerated ions - Collisionless shocks - Energy spectrum - Intense laser pulse - Ion accelerations - Laser propagation - Laser systems - Quasi-monoenergetic - Shock acceleration - Underdense plasmas;
D O I：
10.1063/5.0223622
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Experiments using the OMEGA EP laser system were performed to study collisionless shock acceleration of ions driven by the interaction of a relativistically intense laser pulse with underdense plasma. The energy spectrum of accelerated ions in the direction transverse to laser propagation is measured to have several narrow-band peaks which are quasi-monoenergetic with a typical energy bandwidth of 3%. In deuterium plasmas, these ions generate a significant number of fast fusion neutrons. Particle-in-cell simulations confirm that these ions were accelerated by the interaction of transverse shocks and that the appearance of quasi-monoenergetic spectral features depends on the growth of an ion-electron two-stream instability during the interaction.
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页数：7
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