Simultaneous Investigation of the Nuclear Reactions 11B(p, 3α) and 11B(p, n)11C as a New Tool for Determining the Absolute Yield of Alpha Particles in Picosecond Plasmas

被引：9

作者：

Belyaev, V. S. ^{[1
]}

Matafonov, A. P. ^{[1
]}

Krainov, V. P. ^{[2
]}

Kedrov, A. Yu. ^{[1
]}

Zagreev, B. V. ^{[1
]}

Rusetsky, A. S. ^{[3
]}

Borisenko, N. G. ^{[3
]}

Gromov, A. I. ^{[3
]}

Lobanov, A. V. ^{[4
]}

Lisitsa, V. S. ^{[5
]}

机构：

[1] Cent Res Inst Machine Bldg, Korolev, Russia

[2] Moscow Inst Phys & Technol, Dolgoprudnyi, Russia

[3] Russian Acad Sci, Lebedev Phys Inst, Moscow, Russia

[4] IPG IRE Polus, Fryazino, Russia

[5] Kurchatov Inst, Natl Res Ctr, Moscow, Russia

来源：

PHYSICS OF ATOMIC NUCLEI | 2020年 / 83卷 / 05期

基金：

俄罗斯基础研究基金会;

关键词：

FUSION REACTIONS; LASER; GENERATION;

D O I：

10.1134/S1063778820050063

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The results of experimental investigations devoted to initiating the promising nuclear fusion reaction B-11(p, 3 alpha) in picosecond laser plasmas at a laser-radiation intensity of 5 x 10(18) W/cm(2) are presented. A new tool for determining the absolute yield of alpha particles in the reaction B-11(p, 3 alpha) on the basis of simultaneously measuring the number of neutrons in the reference nuclear reaction B-11(p, n)C-11 is proposed. At the above values of the laser-pulse parameters, the application of this new procedure to estimating the total number of alpha particles per pulse from the reaction B-11(p, 3 alpha) leads to a value of 10(8) particles within a solid angle of 4 pi sr. The results presented here differ substantially from the data obtained in measuring the single-channel yield of alpha particles.

引用

收藏

页码：641 / 650

页数：10

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