A compact proton spectrometer for measurement of the absolute DD proton spectrum from which yield and ρR are determined in thin-shell inertial-confinement-fusion implosions

被引：17

作者：

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

Zylstra, A. B. ^{[1
]}

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

Rinderknecht, H. G. ^{[1
]}

Johnson, M. Gatu ^{[1
]}

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

Seguin, F. H. ^{[1
]}

Sio, H. ^{[1
]}

Sinenian, N. ^{[1
]}

Li, C. K. ^{[1
]}

Petrasso, R. D. ^{[1
]}

Glebov, V. Yu. ^{[2
]}

Hohenberger, M. ^{[2
]}

Stoeckl, C. ^{[2
]}

Sangster, T. C. ^{[2
]}

Yeamans, C. B. ^{[3
]}

LePape, S. ^{[3
]}

Mackinnon, A. J. ^{[3
]}

Bionta, R. M. ^{[3
]}

Talison, B. ^{[3
]}

Casey, D. T. ^{[3
]}

Landen, O. L. ^{[3
]}

Moran, M. J. ^{[3
]}

Zacharias, R. A. ^{[3
]}

Kilkenny, J. D. ^{[4
]}

Nikroo, A. ^{[4
]}

机构：

[1] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA

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

[3] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[4] Gen Atom Co, San Diego, CA 92186 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2014年 / 85卷 / 10期

关键词：

DIRECT-DRIVE; CAPSULES;

D O I：

10.1063/1.4897193

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A compact, step range filter proton spectrometer has been developed for the measurement of the absolute DD proton spectrum, from which yield and areal density (rho R) are inferred for deuterium-filled thin-shell inertial confinement fusion implosions. This spectrometer, which is based on tantalum step-range filters, is sensitive to protons in the energy range 1-9 MeV and can be used to measure proton spectra at mean energies of similar to 1-3 MeV. It has been developed and implemented using a linear accelerator and applied to experiments at the OMEGA laser facility and the National Ignition Facility (NIF). Modeling of the proton slowing in the filters is necessary to construct the spectrum, and the yield and energy uncertainties are +/-<10% in yield and +/-120 keV, respectively. This spectrometer can be used for in situ calibration of DD-neutron yield diagnostics at the NIF. (C) 2014 AIP Publishing LLC.

引用

页数：11