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

[41] HIGH-RESOLUTION X-RAY SPECTROSCOPY, A PERSPECTIVE FOR PLASMA DIAGNOSTICS
FOLKMANN, F
BEYER, HF
MANN, R
SCHARTNER, KH
NUCLEAR INSTRUMENTS & METHODS, 1981, 181 (1-3): : 99 - 103
[42] High-resolution x-ray photoelectron spectroscopy of aliphatic hydrocarbons
Thomas, EA
Carrick, AR
Fulghum, JE
SURFACE AND INTERFACE ANALYSIS, 1998, 26 (04) : 278 - 289
[43] The superconducting high-resolution soft X-ray spectrometer at the advanced biological and environmental X-ray facility
Friedrich, S.
Drury, O. B.
George, S. J.
Cramer, S. P.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2007, 582 (01): : 187 - 189
[44] High-resolution Compton spectroscopy using x-ray microcalorimeters
Patel, U.
Guruswamy, T.
Krzysko, A. J.
Charalambous, H.
Gades, L.
Wiaderek, K.
Quaranta, O.
Ren, Y.
Yakovenko, A.
Ruett, U.
Miceli, A.
REVIEW OF SCIENTIFIC INSTRUMENTS, 2022, 93 (11):
[45] High-resolution X-ray spectroscopy with superconducting tunnel junctions
Physik Department E15, Tech. Universität München, 85748 Garching, Germany
不详
X-Ray Spectrom., 5 (309-311):
[46] High-resolution soft X-ray absorption spectroscopy of solids
Saitoh, Y
Muro, T
Kotsugi, M
Iwasaki, T
Sekiyama, A
Imada, S
Suga, S
JOURNAL OF SYNCHROTRON RADIATION, 2001, 8 : 339 - 341
[47] HIGH-RESOLUTION X-RAY SPECTROSCOPY USING GERMANIUM MICROCALORIMETERS
SILVER, E
LABOV, S
GOULDING, F
MADDEN, N
LANDIS, D
BEEMAN, J
PFAFMAN, T
MELKONIAN, L
MILLETT, I
WAI, Y
EUV, X-RAY, AND GAMMA-RAY INSTRUMENTATION FOR ASTRONOMY AND ATOMIC PHYSICS, 1989, 1159 : 423 - 432
[48] High-resolution X-ray spectroscopy: The coming-of-age
Kaastra, J. S.
ASTRONOMISCHE NACHRICHTEN, 2017, 338 (2-3) : 146 - 152
[49] High-resolution x-ray spectroscopy with the EBIT Calorimeter Spectrometer
Porter, F. Scott
Adams, Joseph S.
Beiersdorfer, Peter
Brown, Gregory V.
Clementson, Joel
Frankel, Miriam
Kahn, Steven M.
Kelley, Richard L.
Kilbourne, Caroline A.
LOW TEMPERATURE DETECTORS LTD 13, 2009, 1185 : 454 - +
[50] The use of perfect crystals in high-resolution X-ray spectroscopy
A. V. Vinogradov
M. Feshchenko
V. A. Chernov
Journal of Experimental and Theoretical Physics Letters, 2003, 78 : 624 - 626

← 1 2 3 4 5 →