Zobrazeno 1 - 10
of 49
pro vyhledávání: '"D B Thorn"'
Autor:
H. Sio, A. Krygier, D. G. Braun, R. E. Rudd, S. A. Bonev, F. Coppari, M. Millot, D. E. Fratanduono, N. Bhandarkar, M. Bitter, D. K. Bradley, P. C. Efthimion, J. H. Eggert, L. Gao, K. W. Hill, R. Hood, W. Hsing, N. Izumi, G. Kemp, B. Kozioziemski, O. L. Landen, K. Le Galloudec, T. E. Lockard, A. Mackinnon, J. M. McNaney, N. Ose, H.-S. Park, B. A. Remington, M. B. Schneider, S. Stoupin, D. B. Thorn, S. Vonhof, C. J. Wu, Y. Ping
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-8 (2023)
Abstract Large laser facilities have recently enabled material characterization at the pressures of Earth and Super-Earth cores. However, the temperature of the compressed materials has been largely unknown, or solely relied on models and simulations
Externí odkaz:
https://doaj.org/article/258382f7cab343e8ac2471967b385953
Autor:
K W Hill, L Gao, B F Kraus, M Bitter, P C Efthimion, N Pablant, M B Schneider, D B Thorn, H Chen, R L Kauffman, D A Liedahl, M J MacDonald, A G MacPhee, H A Scott, S Stoupin, R Doron, E Stambulchik, Y Maron, B Lahmann
Publikováno v:
Plasma Physics and Controlled Fusion. 64:105025
The National Ignition Facility (NIF) diagnostic instrument manipulator (DIM) - based high resolution (dHIRES) x-ray spectrometer was used to measure the time evolution of the electron density (n e) and temperature (T e) in the hot spot of four NIF co
Autor:
Duane A. Liedahl, Richard Kraus, Jon Eggert, Federica Coppari, Marius Millot, Amy Lazicki, J. R. Rygg, D. B. Thorn, R. F. Smith
Publikováno v:
The Review of scientific instruments. 90(12)
The use of x-ray diffraction (XRD) measurements in laser-driven dynamic compression experiments at high-power laser facilities is becoming increasingly common. Diffraction allows one to probe in situ the transformations occurring at the atomic level
Autor:
Otto Landen, M. Schneider, Raspberry Simpson, Peter Hakel, D. B. Thorn, T. Joshi, Thomas Weber, Neel Kabadi, Daniil Svyatskiy, H. G. Rinderknecht, D. K. Bradley, Johan Frenje, Grigory Kagan, R. D. Petrasso, Hong Sio, R. C. Shah, M. Gatu Johnson, J. D. Kilkenny
Publikováno v:
Contributions to Plasma Physics. 59:181-188
Autor:
H. Sio, D. B. Thorn, Marilyn Schneider, Andrew Krygier, N. Ose, P. C. Efthimion, Manfred Bitter, S. Stoupin, Brian Kraus, Federica Coppari, Lan Gao, J. Ayers, B. J. Kozioziemski, K. W. Hill, Yuan Ping
Publikováno v:
Review of Scientific Instruments. 92:053102
We report the development of a high-resolution spectrometer for extended x-ray absorption fine structure (EXAFS) studies of materials under extreme conditions. A curved crystal and detector in the spectrometer are replaceable such that a single body
Autor:
D. B. Thorn, Laurent Masse, E. L. Dewald, L. F. Berzak Hopkins, N. Izumi, J. A. Koch, Yuan Ping, A. Nikroo, Jeremy Kroll, Darwin Ho, Otto Landen
Publikováno v:
The Review of scientific instruments. 89(10)
In the quest for reaching ignition of deuterium-tritium (DT) fuel capsule implosions, experiments on the National Ignition Facility (NIF) have shown lower final fuel areal densities than simulated. Possible explanations for reduced compression are hi
Autor:
James McNaney, Andrew Krygier, Marilyn Schneider, Jon Eggert, H.-S. Park, Federica Coppari, R. S. Craxton, Bruce Remington, Yuan Ping, D. B. Thorn, E. M. Garcia, Gregory Kemp
Publikováno v:
The Review of scientific instruments. 89(10)
Extended X-ray absorption fine structure (EXAFS) spectroscopy is a powerful tool for in situ characterization of matter in the high energy density regime. An EXAFS platform is currently being developed on the National Ignition Facility. Development o
Autor:
B. Stratton, N. A. Pablant, Michael Schneider, K. W. Hill, Lan Gao, L. F. Delgado-Aparicio, Yuan Ping, Andrew MacPhee, Manfred Bitter, Robert L. Kauffman, D. B. Thorn, Federica Coppari, P. C. Efthimion, Brian Kraus
Publikováno v:
The Review of scientific instruments. 89(10)
The here-described spectrometer was developed for the extended x-ray absorption fine structure spectroscopy of high-density plasmas at the National Ignition Facility. It employs as the Bragg reflecting element a new type of toroidally bent crystal wi
Autor:
Federica Coppari, N. A. Pablant, Robert L. Kauffman, P. C. Efthimion, K. W. Hill, D. B. Thorn, Lan Gao, S. Stoupin, B. Stratton, M. Schneider, L. Delgado-Apericio, Yuan Ping, Brian Kraus, M. J. MacDonald, Andrew MacPhee, Manfred Bitter
Publikováno v:
Review of Scientific Instruments. 92:043531
This paper describes a new class of focusing crystal forms for the x-ray Bragg crystal spectroscopy of small, point-like, x-ray sources. These new crystal forms are designed with the aid of sinusoidal spirals, a family of curves, whose shapes are def
Autor:
H.-S. Park, Federica Coppari, C. M. Krauland, D. B. Thorn, H. Sio, W. W. Hsing, Gregory Kemp, M. S. Rubery, Otto Landen, Andrew Krygier, D. K. Bradley, James McNaney, Jon Eggert, M. J. MacDonald, Shahab Khan, Yuan Ping, Marilyn Schneider, Bruce Remington, Alexandre Do
Publikováno v:
Applied Physics Letters. 117:251106
We study continuum x-ray emission from hot plasma at the National Ignition Facility (NIF). We find that the x-ray yield in the multi-keV photon energy range is larger in Ti than in Ag or Au. This apparent paradox is due to Ti K-shell vacancies genera