Hot Spot Evolution Measured by High-Resolution X-Ray Spectroscopy at the National Ignition Facility

被引：14

作者：

Gao, Lan ^{[1
]}

Kraus, B. F. ^{[1
]}

Hill, K. W. ^{[1
]}

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

Christopherson, A. ^{[3
]}

Bachmann, B. ^{[2
]}

Bitter, M. ^{[1
]}

Efthimion, P. ^{[1
]}

Pablant, N. ^{[1
]}

Betti, R. ^{[3
]}

Thomas, C. ^{[3
]}

Thorn, D. ^{[2
]}

MacPhee, A. G. ^{[2
]}

Khan, S. ^{[2
]}

Kauffman, R. ^{[2
]}

Liedahl, D. ^{[2
]}

Chen, H. ^{[2
]}

Bradley, D. ^{[2
]}

Kilkenny, J. ^{[2
]}

Lahmann, B. ^{[4
]}

Stambulchik, E. ^{[5
]}

Maron, Y. ^{[5
]}

机构：

[1] Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA

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

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

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

[5] Weizmann Inst Sci, Fac Phys, IL-7610001 Rehovot, Israel

来源：

PHYSICAL REVIEW LETTERS | 2022年 / 128卷 / 18期

关键词：

INERTIAL CONFINEMENT FUSION; DYNAMICS; PLASMA;

D O I：

10.1103/PhysRevLett.128.185002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Evolution of the hot spot plasma conditions was measured using high-resolution x-ray spectroscopy at the National Ignition Facility. The capsules were filled with DD gas with trace levels of Kr and had either a high-density-carbon (HDC) ablator or a tungsten (W)-doped HDC ablator. Time-resolved measurement of the Kr He?? spectra, absolutely calibrated by a simultaneous time-integrated measurement, allows inference of the electron density and temperature through observing Stark broadening and the relative intensities of dielectronic satellites. By matching the calculated hot spot emission using a collisional-radiative code to experimental observations, the hot spot size and areal density are determined. These advanced spectroscopy techniques further reveal the effect of W dopant in the ablator on the hot spot parameters for their improved implosion performance.

引用

页数：6

共 50 条

[1] Automated analysis of hot spot X-ray images at the National Ignition Facility
Khan, S. F.
Izumi, N.
Glenn, S.
Tommasini, R.
Benedetti, L. R.
Ma, T.
Pak, A.
Kyrala, G. A.
Springer, P.
Bradley, D. K.
Town, R. P. J.
REVIEW OF SCIENTIFIC INSTRUMENTS, 2016, 87 (11):
[2] A HIGH-RESOLUTION X-RAY FACILITY
CHEN, H
KURIYAMA, M
JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1981, 14 (AUG) : 280 - 280
[3] A new class of variable-radii diffraction optics for high-resolution x-ray spectroscopy at the National Ignition Facility (invited)
Pablant, N. A.
Bitter, M.
Gao, L.
Dozieres, M.
Efthimion, P. C.
Frisch, G.
Hill, K. W.
Hordin, T.
Kozioziemski, B.
Krygier, A.
MacDonald, M. J.
Ose, N.
Ping, Y.
Sagan, D.
Schneider, M. B.
Sio, H.
Stoupin, S.
Yakusevitch, Y.
REVIEW OF SCIENTIFIC INSTRUMENTS, 2022, 93 (10):
[4] Development of a high resolution x-ray spectrometer for the National Ignition Facility (NIF)
Hill, K. W.
Bitter, M.
Delgado-Aparicio, L.
Efthimion, P. C.
Ellis, R.
Gao, L.
Maddox, J.
Pablant, N. A.
Schneider, M. B.
Chen, H.
Ayers, S.
Kauffman, R. L.
MacPhee, A. G.
Beiersdorfer, P.
Bettencourt, R.
Ma, T.
Nora, R. C.
Scott, H. A.
Thorn, D. B.
Kilkenny, J. D.
Nelson, D.
Shoup, M., III
Maron, Y.
REVIEW OF SCIENTIFIC INSTRUMENTS, 2016, 87 (11):
[5] Diagnosing Implosions at the National Ignition Facility with X-Ray Spectroscopy
Regan, S. P.
Epstein, R.
Hammel, B. A.
Suter, L. J.
Ralph, J.
Scott, H.
Barrios, M. A.
Bradley, D. K.
Callahan, D. A.
Collins, G. W.
Dixit, S. N.
Edwards, M. J.
Farley, D. R.
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.
MacKinnon, A. J.
Mancini, R. C.
Marshall, F. J.
McCrory, R. L.
Meezan, N. B.
Meyerhofer, D. D.
Nikroo, A.
Peterson, K. J.
Sangster, T. C.
Springer, P.
Town, R. P. J.
17TH INTERNATIONAL CONFERENCE ON ATOMIC PROCESSES IN PLASMAS (ICAPIP), 2012, 1438 : 49 - 54
[6] HIGH-RESOLUTION X-RAY SPECTROSCOPY
NAGEL, DJ
KNUDSON, AR
BURKHALT.PG
DUNNING, KL
REPORT OF NRL PROGRESS, 1971, (JUN): : 15 - &
[7] Recent progress in high-energy, high-resolution x-ray imaging techniques for application to the National Ignition Facility (invited)
Koch, JA
Landen, OL
Hammel, BA
Brown, C
Seely, J
Aglitskiy, Y
REVIEW OF SCIENTIFIC INSTRUMENTS, 1999, 70 (01): : 525 - 529
[8] X-ray diffraction at the National Ignition Facility
Rygg, J. R.
Smith, R. F.
Lazicki, A. E.
Braun, D. G.
Fratanduono, D. E.
Kraus, R. G.
McNaney, J. M.
Swift, D. C.
Wehrenberg, C. E.
Coppari, F.
Ahmed, M. F.
Barrios, M. A.
Blobaum, K. J. M.
Collins, G. W.
Cook, A. L.
Di Nicola, P.
Dzenitis, E. G.
Gonzales, S.
Heidl, B. F.
Hohenberger, M.
House, A.
Izumi, N.
Kalantar, D. H.
Khan, S. F.
Kohut, T. R.
Kumar, C.
Masters, N. D.
Polsin, D. N.
Regan, S. P.
Smith, C. A.
Vignes, R. M.
Wall, M. A.
Ward, J.
Wark, J. S.
Zobrist, T. L.
Arsenlis, A.
Eggert, J. H.
REVIEW OF SCIENTIFIC INSTRUMENTS, 2020, 91 (04):
[9] High-resolution X-ray spectroscopy of θ Carinae
Naze, Y.
Rauw, G.
ASTRONOMY & ASTROPHYSICS, 2008, 490 (02) : 801 - 806
[10] HIGH-RESOLUTION X-RAY SPECTROSCOPY AT JET
GIANNELLA, R
JOURNAL DE PHYSIQUE, 1988, 49 (C-1): : 283 - 291

← 1 2 3 4 5 →