Energetic deuterium-ion beams and neutron source driven by multiple-laser interaction with pitcher-catcher target

被引：21

作者：

Jiang, X. R. ^{[1
]}

Shao, F. Q. ^{[1
]}

Zou, D. B. ^{[1
,2
]}

Yu, M. Y. ^{[2
]}

Hu, L. X. ^{[1
]}

Guo, X. Y. ^{[2
]}

Huang, T. W. ^{[2
]}

Zhang, H. ^{[2
]}

Wu, S. Z. ^{[2
]}

Zhang, G. B. ^{[1
]}

Yu, T. P. ^{[1
]}

Yin, Y. ^{[1
]}

Zhuo, H. B. ^{[2
]}

Zhou, C. T. ^{[2
,3
]}

机构：

[1] Natl Univ Def Technol, Dept Phys, Changsha 410073, Peoples R China

[2] Shenzhen Technol Univ, Coll Engn Phys, Ctr Adv Mat Diagnost Technol, Shenzhen 518118, Peoples R China

[3] Shenzhen Univ, Coll Appl Technol, Shenzhen 518060, Peoples R China

来源：

NUCLEAR FUSION | 2020年 / 60卷 / 07期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

multiple-lasers; TNSA; interference; deuterium ions; neutron sources; NUCLEAR-FUSION; PLASMA; ELECTRON; PULSES; ACCELERATION; EXPLOSIONS; EMISSION; TERAWATT; IGNITION; PHOTON;

D O I：

10.1088/1741-4326/ab91f9

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：

Multiple lasers interacting with a deuterated (D) pitcher-catcher target and neutron generation are investigated using two-dimensional hybrid particle-in-cell and Monte Carlo simulations. It is found that when multiple laser pulses are focused on the front surface of the pitcher layer, D(+)ion acceleration by target normal sheath acceleration (TNSA) is enhanced by the interfering overlapped light fields and the resulting periodic target-surface structure. With three laser pulses each of 4.5 x 10(19)W cm(-2)intensity, 33 fs duration and similar to 160 mJ energy, focusing at suitable angles on the pitcher layer, one can obtain 15 MeV D(+)ions and similar to 25% laser-to-D(+)ions energy conversion efficiency. As the resulting high-energy-density D(+)ions bombard the catcher layer, D-D fusion reactions are triggered. About 3.6 x 10(7)neutrons can be produced, with the maximum neutron production rate as high as 3.1 x 10(36)m(-3)s(-1), almost an order of magnitude higher than that from a single laser of the same total energy.

引用

页数：9

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