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.

引用

页数：7

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