The effect of shock dynamics on compressibility of ignition-scale National Ignition Facility implosions

被引：21

作者：

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

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

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

Hicks, D. G. ^{[2
]}

Dewald, E. L. ^{[2
]}

Robey, H. F. ^{[2
]}

Rygg, J. R. ^{[2
]}

Meezan, N. B. ^{[2
]}

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

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

Friedrich, S. ^{[2
]}

Bionta, R. ^{[2
]}

Olson, R. ^{[3
,4
]}

Atherton, J. ^{[2
]}

Barrios, M. ^{[2
]}

Bell, P. ^{[2
]}

Benedetti, R. ^{[2
]}

Hopkins, L. Berzak ^{[2
]}

Betti, R. ^{[5
]}

Bradley, D. ^{[2
]}

Callahan, D. ^{[2
]}

Casey, D. ^{[2
]}

Collins, G. ^{[2
]}

Dixit, S. ^{[2
]}

Doeppner, T. ^{[2
]}

Edgell, D. ^{[5
]}

Edwards, M. J. ^{[2
]}

Johnson, M. Gatu ^{[1
]}

Glenn, S. ^{[2
]}

Glenzer, S. ^{[2
]}

Grim, G. ^{[4
]}

Hatchett, S. ^{[2
]}

Jones, O. ^{[2
]}

Khan, S. ^{[2
]}

Kilkenny, J. ^{[6
]}

Kline, J. ^{[4
]}

Knauer, J. ^{[5
]}

Kritcher, A. ^{[2
]}

Kyrala, G. ^{[4
]}

Landen, O. ^{[2
]}

LePape, S. ^{[2
]}

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

Lindl, J. ^{[2
]}

Ma, T. ^{[2
]}

Mackinnon, A. ^{[2
]}

Macphee, A. ^{[2
]}

Manuel, M. J. -E. ^{[1
]}

Meyerhofer, D. ^{[5
]}

Moody, J. ^{[2
]}

Moses, E. ^{[2
]}

机构：

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

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

[3] Sandia Natl Labs, Albuquerque, NM 87185 USA

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

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

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

来源：

PHYSICS OF PLASMAS | 2014年 / 21卷 / 11期

基金：

美国国家科学基金会;

关键词：

INERTIAL-CONFINEMENT-FUSION; DESIGN;

D O I：

10.1063/1.4900621

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：

The effects of shock dynamics on compressibility of indirect-drive ignition-scale surrogate implosions, CH shells filled with (DHe)-He-3 gas, have been studied using charged-particle spectroscopy. Spectral measurements of (DHe)-He-3 protons produced at the shock-bang time probe the shock dynamics and in-flight characteristics of an implosion. The proton shock yield is found to vary by over an order of magnitude. A simple model relates the observed yield to incipient hot-spot adiabat, suggesting that implosions with rapid radiation-power increase during the main drive pulse may have a 2x higher hot-spot adiabat, potentially reducing compressibility. A self-consistent 1-D implosion model was used to infer the areal density (rho R) and the shell center-of-mass radius (R-cm) from the downshift of the shock-produced (DHe)-He-3 protons. The observed rho R at shock-bang time is substantially higher for implosions, where the laser drive is on until near the compression bang time ("short-coast"), while longer-coasting implosions have lower rho R. This corresponds to a much larger temporal difference between the shock- and compression-bang time in the long-coast implosions (similar to 800 ps) than in the short-coast (similar to 400 ps); this will be verified with a future direct bang-time diagnostic. This model-inferred differential bang time contradicts radiation-hydrodynamic simulations, which predict constant 700-800 ps differential independent of coasting time; this result is potentially explained by uncertainties in modeling late-time ablation drive on the capsule. In an ignition experiment, an earlier shock-bang time resulting in an earlier onset of shell deceleration, potentially reducing compression and, thus, fuel rho R. (C) 2014 AIP Publishing LLC.

引用

页数：18

共 50 条

[1] Experimental investigation of bright spots in broadband, gated x-ray images of ignition-scale implosions on the National Ignition Facility
Barrios, M. A.
Regan, S. P.
Suter, L. J.
Glenn, S.
Benedetti, L. R.
Bradley, D. K.
Collins, G. W.
Epstein, R.
Hammel, B. A.
Kyrala, G. A.
Izumi, N.
Ma, T.
Scott, H.
Smalyuk, V. A.
PHYSICS OF PLASMAS, 2013, 20 (07)
[2] Hot-spot mix in ignition-scale implosions on the NIF
Regan, S. P.
Epstein, R.
Hammel, B. A.
Suter, L. J.
Ralph, J.
Scott, H.
Barrios, M. A.
Bradley, D. K.
Callahan, D. A.
Cerjan, C.
Collins, G. W.
Dixit, S. N.
Doeppner, T.
Edwards, M. J.
Farley, D. R.
Glenn, S.
Glenzer, S. H.
Golovkin, I. E.
Haan, S. W.
Hamza, A.
Hicks, D. G.
Izumi, N.
Kilkenny, J. D.
Kline, J. L.
Kyrala, G. A.
Landen, O. L.
Ma, T.
MacFarlane, J. J.
Mancini, R. C.
McCrory, R. L.
Meezan, N. B.
Meyerhofer, D. D.
Nikroo, A.
Peterson, K. J.
Sangster, T. C.
Springer, P.
Town, R. P. J.
PHYSICS OF PLASMAS, 2012, 19 (05)
[3] Shock Ignition Laser-Plasma Interactions in Ignition-Scale Plasmas
Scott, R. H. H.
Glize, K.
Antonelli, L.
Khan, M.
Theobald, W.
Wei, M.
Betti, R.
Stoeckl, C.
Seaton, A. G.
Arber, T. D.
Barlow, D.
Goffrey, T.
Bennett, K.
Garbett, W.
Atzeni, S.
Casner, A.
Batani, D.
Li, C.
Woolsey, N.
PHYSICAL REVIEW LETTERS, 2021, 127 (06)
[4] Time-resolved measurements of the hot-electron population in ignition-scale experiments on the National Ignition Facility
Hohenberger, M.
Albert, F.
Palmer, N. E.
Lee, J. J.
Doeppner, T.
Divol, L.
Dewald, E. L.
Bachmann, B.
MacPhee, A. G.
LaCaille, G.
Bradley, D. K.
Stoeckl, C.
REVIEW OF SCIENTIFIC INSTRUMENTS, 2014, 85 (11):
[5] Diagnostics for high density implosions at the National Ignition Facility
Cable, MD
Barbee, TW
Lerche, RA
Nelson, MB
Moran, MJ
Ress, DB
Sangster, TC
Trebes, JE
Turner, RE
Phillips, TW
Hicks, D
Li, CK
Petrasso, RD
Seguin, F
FUSION ENERGY 1996, VOL 3, 1997, : 153 - 159
[6] Cryogenic thermonuclear fuel implosions on the National Ignition Facility
Glenzer, S. H.
Callahan, D. A.
MacKinnon, A. J.
Kline, J. L.
Grim, G.
Alger, E. T.
Berger, R. L.
Bernstein, L. A.
Betti, R.
Bleuel, D. L.
Boehly, T. R.
Bradley, D. K.
Burkhart, S. C.
Burr, R.
Caggiano, J. A.
Castro, C.
Casey, D. T.
Choate, C.
Clark, D. S.
Celliers, P.
Cerjan, C. J.
Collins, G. W.
Dewald, E. L.
DiNicola, P.
DiNicola, J. M.
Divol, L.
Dixit, S.
Doeppner, T.
Dylla-Spears, R.
Dzenitis, E.
Eckart, M.
Erbert, G.
Farley, D.
Fair, J.
Fittinghoff, D.
Frank, M.
Frenje, L. J. A.
Friedrich, S.
Casey, D. T.
Johnson, M. Gatu
Gibson, C.
Giraldez, E.
Glebov, V.
Glenn, S.
Guler, N.
Haan, S. W.
Haid, B. J.
Hammel, B. A.
Hamza, A. V.
Haynam, C. A.
PHYSICS OF PLASMAS, 2012, 19 (05)
[7] First beryllium capsule implosions on the National Ignition Facility
Kline, J. L.
Yi, S. A.
Simakov, A. N.
Olson, R. E.
Wilson, D. C.
Kyrala, G. A.
Perry, T. S.
Batha, S. H.
Zylstra, A. B.
Dewald, E. L.
Tommasini, R.
Ralph, J. E.
Strozzi, D. J.
MacPhee, A. G.
Callahan, D. A.
Hinkel, D. E.
Hurricane, O. A.
Milovich, J. L.
Rygg, J. R.
Khan, S. F.
Haan, S. W.
Celliers, P. M.
Clark, D. S.
Hammel, B. A.
Kozioziemski, B.
Schneider, M. B.
Marinak, M. M.
Rinderknecht, H. G.
Robey, H. F.
Salmonson, J. D.
Patel, P. K.
Ma, T.
Edwards, M. J.
Stadermann, M.
Baxamusa, S.
Alford, C.
Wang, M.
Nikroo, A.
Rice, N.
Hoover, D.
Youngblood, K. P.
Xu, H.
Huang, H.
Sio, H.
PHYSICS OF PLASMAS, 2016, 23 (05)
[8] Validating hydrodynamic growth in National Ignition Facility implosions
Peterson, J. L.
Casey, D. T.
Hurricane, O. A.
Raman, K. S.
Robey, H. F.
Smalyuk, V. A.
PHYSICS OF PLASMAS, 2015, 22 (05)
[9] Low mode surface perturbation tolerance of ignition capsule implosions for the National Ignition Facility
Strobel, GL
Haan, SW
Dittrich, TR
PHYSICS OF PLASMAS, 2004, 11 (04) : 1617 - 1621
[10] X-ray driven implosions at ignition relevant velocities on the National Ignition Facility
Meezan, N. B.
MacKinnon, A. J.
Hicks, D. G.
Dewald, E. L.
Tommasini, R.
Le Pape, S.
Doeppner, T.
Ma, T.
Farley, D. R.
Kalantar, D. H.
Di Nicola, P.
Callahan, D. A.
Robey, H. F.
Thomas, C. A.
Prisbrey, S. T.
Jones, O. S.
Milovich, J. L.
Clark, D. S.
Eder, D. C.
Schneider, M. B.
Widmann, K.
Koch, J. A.
Salmonson, J. D.
Opachich, Y. P.
Benedetti, L. R.
Khan, S. F.
MacPhee, A. G.
Glenn, S. M.
Bradley, D. K.
Dzenitis, E. G.
Nathan, B. R.
Kroll, J. J.
Hamza, A. V.
Dixit, S. N.
Atherton, L. J.
Landen, O. L.
Glenzer, S. H.
Hsing, W. W.
Suter, L. J.
Edwards, M. J.
MacGowan, B. J.
Moses, E. I.
Olson, R. E.
Kline, J. L.
Kyrala, G. A.
Moore, A. S.
Kilkenny, J. D.
Nikroo, A.
Moreno, K.
Hoover, D. E.
PHYSICS OF PLASMAS, 2013, 20 (05)

← 1 2 3 4 5 →