3D xRAGE simulation of inertial confinement fusion implosion with imposed mode 2 laser drive asymmetry

被引：13

作者：

Johnson, M. Gatu ^{[1
]}

Haines, B. M. ^{[2
]}

Adrian, P. J. ^{[1
]}

Forrest, C. ^{[3
]}

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

Glebov, V. Yu ^{[3
]}

Grimble, W. ^{[3
]}

Janezic, R. ^{[3
]}

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

Lahmann, B. ^{[1
]}

Marshall, F. J. ^{[3
]}

Michel, T. ^{[3
]}

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

Stoeckl, C. ^{[3
]}

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

机构：

[1] MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA

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

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

来源：

HIGH ENERGY DENSITY PHYSICS | 2020年 / 36卷

关键词：

Inertial confinement fusion; Low-mode asymmetry; Radiation-hydrodynamic simulations; Neutron spectrometry;

D O I：

10.1016/j.hedp.2020.100825

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：

Low-mode asymmetries represent an important obstacle to achieving high-gain inertial confinement fusion implosions. As a step in learning how to control such effects, an OMEGA experiment with imposed mode 2 laser drive asymmetries was done to study the expected signatures of this type of asymmetry [M. Gatu Johnson et al., PRE 2018]. In the present work, a 3D xRAGE simulation including the stalk mount has been brought to bear on the data from that experiment. Comprehensive comparisons between simulated and measured observables are made. Good agreement between simulated and measured x-ray image-inferred shell trajectories, bang times and neutron emission widths are seen, showing that the hydrodynamics are well captured in the simulation. Asymmetries seen in simulated and measured time-resolved and time-integrated x-ray images and areal densities also compare well, showing impact of both stalk and mode 2. On the other hand, important differences in measured and simulated neutron emission histories, yield, and ion temperature (T-ion) asymmetries are seen, suggesting that the simulation is overestimating shock yield. The results clearly demonstrate the importance of considering all asymmetry sources when interpreting measured signatures of asymmetry.

引用

页数：8

共 43 条

[1] The production spectrum in fusion plasmas [J].

Appelbe, B. ;

Chittenden, J. .

PLASMA PHYSICS AND CONTROLLED FUSION, 2011, 53 (04)

[2]

Atzeni S., 2004, The Physics of Inertial Fusion, V125

[3] Relativistic calculation of fusion product spectra for thermonuclear plasmas [J].

Ballabio, L ;

Källne, J ;

Gorini, G .

NUCLEAR FUSION, 1998, 38 (11) :1723-1735

[4] Fast ion transport in the quasi-single helical reversed-field pinch [J].

Bonofiglo, P. J. ;

Anderson, J. K. ;

Gobbin, M. ;

Spong, D. A. ;

Boguski, J. ;

Parke, E. ;

Kim, J. ;

Egedal, J. .

PHYSICS OF PLASMAS, 2019, 26 (02)

[5] Analysis of trends in experimental observables: Reconstruction of the implosion dynamics and implications for fusion yield extrapolation for direct-drive cryogenic targets on OMEGA [J].

Bose, A. ;

Betti, R. ;

Mangino, D. ;

Woo, K. M. ;

Patel, D. ;

Christopherson, A. R. ;

Gopalaswamy, V. ;

Mannion, O. M. ;

Regan, S. P. ;

Goncharov, V. N. ;

Edgell, D. H. ;

Forrest, C. J. ;

Frenje, J. A. ;

Johnson, M. Gatu ;

Glebov, V. Yu ;

Igumenshchev, I. V. ;

Knauer, J. P. ;

Marshall, F. J. ;

Radha, P. B. ;

Shah, R. ;

Stoeckl, C. ;

Theobald, W. ;

Sangster, T. C. ;

Shvarts, D. ;

Campbell, E. M. .

PHYSICS OF PLASMAS, 2018, 25 (06)

[6] The physics of long- and intermediate-wavelength asymmetries of the hot spot: Compression hydrodynamics and energetics [J].

Bose, A. ;

Betti, R. ;

Shvarts, D. ;

Woo, K. M. .

PHYSICS OF PLASMAS, 2017, 24 (10)

[7] The magnetic recoil spectrometer for measurements of the absolute neutron spectrum at OMEGA and the NIF [J].

Casey, D. T. ;

Frenje, J. A. ;

Johnson, M. Gatu ;

Seguin, F. H. ;

Li, C. K. ;

Petrasso, R. D. ;

Glebov, V. Yu ;

Katz, J. ;

Magoon, J. ;

Meyerhofer, D. D. ;

Sangster, T. C. ;

Shoup, M. ;

Ulreich, J. ;

Ashabranner, R. C. ;

Bionta, R. M. ;

Carpenter, A. C. ;

Felker, B. ;

Khater, H. Y. ;

LePape, S. ;

MacKinnon, A. ;

McKernan, M. A. ;

Moran, M. ;

Rygg, J. R. ;

Yeoman, M. F. ;

Zacharias, R. ;

Leeper, R. J. ;

Fletcher, K. ;

Farrell, M. ;

Jasion, D. ;

Kilkenny, J. ;

Paguio, R. .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2013, 84 (04)

[8] Signatures of asymmetry in neutron spectra and images predicted by three-dimensional radiation hydrodynamics simulations of indirect drive implosions [J].

Chittenden, J. P. ;

Appelbe, B. D. ;

Manke, F. ;

McGlinchey, K. ;

Niasse, N. P. L. .

PHYSICS OF PLASMAS, 2016, 23 (05)

[9] A NEW GENERATION OF LOS ALAMOS OPACITY TABLES [J].

Colgan, J. ;

Kilcrease, D. P. ;

Magee, N. H. ;

Sherrill, M. E. ;

Abdallah, J., Jr. ;

Hakel, P. ;

Fontes, C. J. ;

Guzik, J. A. ;

Mussack, K. A. .

ASTROPHYSICAL JOURNAL, 2016, 817 (02)

[10] Impact of stalk on directly driven inertial confinement fusion implosions [J].

Gatu Johnson, M. ;

Adrian, P. J. ;

Anderson, K. S. ;

Appelbe, B. D. ;

Chittenden, J. P. ;

Crilly, A. J. ;

Edgell, D. ;

Forrest, C. J. ;

Frenje, J. A. ;

Glebov, V. Yu. ;

Haines, B. M. ;

Igumenshchev, I. ;

Jacobs-Perkins, D. ;

Janezic, R. ;

Kabadi, N. V. ;

Knauer, J. P. ;

Lahmann, B. ;

Mannion, O. M. ;

Marshall, F. J. ;

Michel, T. ;

Seguin, F. H. ;

Shah, R. ;

Stoeckl, C. ;

Walsh, C. A. ;

Petrasso, R. D. .

PHYSICS OF PLASMAS, 2020, 27 (03)

← 1 2 3 4 5 →