Comprehensive sets of 124Xe(n, γ)125Xe and 124Xe(n, 2n)123Xe cross-section data for assessment of inertial-confinement deuterium-tritium fusion plasma

被引：11

作者：

Bhike, Megha ^{[1
,2
]}

Fallin, B. ^{[1
,2
]}

Gooden, M. E. ^{[2
,3
]}

Ludin, N. ^{[4
]}

Tornow, W. ^{[1
,2
]}

机构：

[1] Duke Univ, Dept Phys, Durham, NC 27708 USA

[2] Triangle Univ Nucl Lab, Durham, NC 27708 USA

[3] N Carolina State Univ, Raleigh, NC 27695 USA

[4] Univ Denver, Denver, CO 80208 USA

来源：

PHYSICAL REVIEW C | 2015年 / 91卷 / 01期

关键词：

SCIENCE;

D O I：

10.1103/PhysRevC.91.011601

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：

Measurements of the neutron radiative-capture cross section of Xe-124 have been performed for the first time for neutron energies above 100 keV. In addition, data for the Xe-124(n, 2n)Xe-123 reaction cross section have been obtained from threshold to 14.8 MeV to cover the entire energy range of interest, while previous data existed only at around 14 MeV. The results of these measurements provide the basis for an alternative and sensitive diagnostic tool for investigating properties of the inertial confinement fusion plasma in deuterium-tritium (DT) capsules at the National Ignition Facility located at Lawrence Livermore National Laboratory. Here, areal density rho R (density x radius) of the fuel, burn asymmetry, and fuel-ablator mix are of special interest. The Xe-124(n, gamma)Xe-125 reaction probes the down-scattered neutrons, while the Xe-124(n, 2n)Xe-123 reaction provides a measure of the 14 MeV direct neutrons.

引用

页数：5

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