Note: Radiochemical measurement of fuel and ablator areal densities in cryogenic implosions at the National Ignition Facility

被引：11

作者：

Hagmann, C. ^{[1
]}

Shaughnessy, D. A. ^{[1
]}

Moody, K. J. ^{[1
]}

Grant, P. M. ^{[1
]}

Gharibyan, N. ^{[1
]}

Gostic, J. M. ^{[1
]}

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

Torretto, P. C. ^{[1
]}

Bandong, B. B. ^{[1
]}

Bionta, R. ^{[1
]}

Cerjan, C. J. ^{[1
]}

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

Caggiano, J. A. ^{[1
]}

Herrmann, H. W. ^{[2
]}

Knauer, J. P. ^{[3
]}

Sayre, D. B. ^{[1
]}

Schneider, D. H. ^{[1
]}

Henry, E. A. ^{[1
]}

Fortner, R. J. ^{[1
]}

机构：

[1] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA

[2] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[3] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2015年 / 86卷 / 07期

关键词：

INERTIAL CONFINEMENT FUSION; CAPSULES;

D O I：

10.1063/1.4926743

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A new radiochemical method for determining deuterium-tritium (DT) fuel and plastic ablator (CH) areal densities (rho R) in high-convergence, cryogenic inertial confinement fusion implosions at the National Ignition Facility is described. It is based on measuring the Au-198/Au-196 activation ratio using the collected post-shot debris of the Au hohlraum. The Au ratio combined with the independently measured neutron down scatter ratio uniquely determines the areal densities rho R(DT) and rho R(CH) during burn in the context of a simple 1-dimensional capsule model. The results show larger than expected rho R(CH) values, hinting at the presence of cold fuel-ablator mix. (C) 2015 AIP Publishing LLC. [http://dx.doi.org/10.1063/1.4926743]

引用

页数：3

共 50 条

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