H
Hyun-Kyung Chung
Researcher at International Atomic Energy Agency
Publications - 109
Citations - 3791
Hyun-Kyung Chung is an academic researcher from International Atomic Energy Agency. The author has contributed to research in topics: Plasma & Laser. The author has an hindex of 28, co-authored 107 publications receiving 3284 citations. Previous affiliations of Hyun-Kyung Chung include University of California, San Diego & Lawrence Livermore National Laboratory.
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Journal ArticleDOI
FLYCHK: Generalized population kinetics and spectral model for rapid spectroscopic analysis for all elements
TL;DR: FLYCHK as discussed by the authors is a straightforward, rapid tool to provide ionization and population distributions of plasmas in zero dimension with accuracy sufficient for most initial estimates and in many cases is applicable for more sophisticated analysis.
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Creation and diagnosis of a solid-density plasma with an X-ray free-electron laser
Sam Vinko,O. Ciricosta,Byoung-ick Cho,K. Engelhorn,Hyun-Kyung Chung,C. R. D. Brown,Tomáš Burian,Jaromír Chalupský,Roger Falcone,Roger Falcone,Catherine Graves,Věra Hájková,Andrew Higginbotham,Libor Juha,Jacek Krzywinski,H. J. Lee,Marc Messerschmidt,C. D. Murphy,Yuan Ping,Andreas Scherz,William F. Schlotter,Sven Toleikis,Joshua J. Turner,L. Vysin,Tianhan Wang,B. Wu,Ulf Zastrau,Diling Zhu,Richard W. Lee,P.A. Heimann,Bob Nagler,Justin Wark +31 more
TL;DR: The experimental creation of a solid-density plasma at temperatures in excess of 106 kelvin on inertial-confinement timescales using an X-ray free-electron laser is reported and insights are obtained into the evolution of the charge state distribution of the system, the electron density and temperature, and the timescale of collisional processes.
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Direct measurements of the ionization potential depression in a dense plasma.
O. Ciricosta,Sam Vinko,Hyun-Kyung Chung,Byoung-ick Cho,C. R. D. Brown,Tomáš Burian,Jaromír Chalupský,K. Engelhorn,Roger Falcone,Roger Falcone,Catherine Graves,Věra Hájková,Andrew Higginbotham,Libor Juha,Jacek Krzywinski,Hae Ja Lee,Marc Messerschmidt,C. D. Murphy,Yuan Ping,D. S. Rackstraw,Andreas Scherz,William F. Schlotter,Sven Toleikis,Joshua J. Turner,L. Vysin,Tianhan Wang,Benny Wu,Ulf Zastrau,Diling Zhu,R. W. Lee,P.A. Heimann,Bob Nagler,Justin Wark +32 more
TL;DR: The results are found to disagree with the predictions of the extensively used Stewart-Pyatt model, but are consistent with the earlier model of Ecker and Kröll, which predicts significantly greater depression of the ionization potential.
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Observations of the effect of ionization-potential depression in hot dense plasma.
David Hoarty,P. Allan,Steven James,C. R. D. Brown,L. M. R. Hobbs,M. P. Hill,J.W.O. Harris,John J. L. Morton,M. G. Brookes,Ronnie Shepherd,James Dunn,H. Chen,E. Von Marley,Peter Beiersdorfer,Hyun-Kyung Chung,Richard W. Lee,Gregory V. Brown,J. Emig +17 more
TL;DR: The experimental data are in closer agreement with simulations using the model of Stewart and Pyatt and an alternative due to Ecker and Kröll suggested by recent x-ray free-electron laser experiments is suggested.
Journal ArticleDOI
Absorption of short laser pulses on solid targets in the ultrarelativistic regime.
Yuan Ping,Ronnie Shepherd,Barbara F. Lasinski,Max Tabak,H. Chen,Hyun-Kyung Chung,K. B. Fournier,Stephanie Hansen,Andreas Kemp,Duane A. Liedahl,Klaus Widmann,Scott Wilks,Wojciech Rozmus,Mark Sherlock +13 more
TL;DR: The first direct measurements of total absorption of short laser pulses on solid targets in the ultrarelativistic regime are reported, showing an enhanced absorption at intensities above 10(20) W/cm(2), reaching 60% for near-normal incidence and 80%-90% for 45 degrees incidence.