Experimental study of fusion neutron and proton yields produced by petawatt-laser-irradiated D2-3He or CD4-3He clustering gases

被引：19

作者：

Bang, W. ^{[1
]}

Barbui, M. ^{[2
]}

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

Quevedo, H. J. ^{[1
]}

Dyer, G. ^{[1
]}

Bernstein, A. C. ^{[1
]}

Hagel, K. ^{[2
]}

Schmidt, K. ^{[2
]}

Gaul, E. ^{[1
]}

Donovan, M. E. ^{[1
]}

Consoli, F. ^{[4
]}

De Angelis, R. ^{[4
]}

Andreoli, P. ^{[4
]}

Barbarino, M. ^{[2
]}

Kimura, S. ^{[5
]}

Mazzocco, M. ^{[6
,7
]}

Natowitz, J. B. ^{[2
]}

Ditmire, T. ^{[1
]}

机构：

[1] Univ Texas Austin, Ctr High Energy Dens Sci, Austin, TX 78712 USA

[2] Texas A&M Univ, Inst Cyclotron, College Stn, TX 77843 USA

[3] LNS INFN, I-95123 Catania, Italy

[4] Assoc Euratom ENEA Fus, Rome, Italy

[5] Univ Milan, Dept Phys, I-20133 Milan, Italy

[6] Dept Phys & Astron, I-35131 Padua, Italy

[7] INFN Sez Padova, I-35131 Padua, Italy

来源：

PHYSICAL REVIEW E | 2013年 / 88卷 / 03期

关键词：

NUCLEAR-FUSION; DEUTERIUM; DRIVEN; EXPLOSIONS; TIME;

D O I：

10.1103/PhysRevE.88.033108

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：

We report on experiments in which the Texas Petawatt laser irradiated a mixture of deuterium or deuterated methane clusters and helium-3 gas, generating three types of nuclear fusion reactions: D(d,He-3)n, D(d,t)p, and He-3(d,p)He-4. We measured the yields of fusion neutrons and protons from these reactions and found them to agree with yields based on a simple cylindrical plasma model using known cross sections and measured plasma parameters. Within our measurement errors, the fusion products were isotropically distributed. Plasma temperatures, important for the cross sections, were determined by two independent methods: (1) deuterium ion time of flight and (2) utilizing the ratio of neutron yield to proton yield from D(d,He-3) n and He-3(d,p)He-4 reactions, respectively. This experiment produced the highest ion temperature ever achieved with laser-irradiated deuterium clusters.

引用

页数：6

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