Kyung-Yook Chae
Sungkyunkwan University · 物理学・天文学
研究室紹介
Professor Kyung-Yook Chae's research lab specializes in experimental nuclear physics, with a focus on nuclear reactions and level structures relevant to astrophysics, particularly in the context of nucleosynthesis processes such as the s-process and rapid proton capture (rp-process). The lab conducts precision measurements using radioactive ion beams at advanced facilities like the Holifield Radioactive Ion Beam Facility (HRIBF) at Oak Ridge National Laboratory, investigating reaction rates, resonance interference, and nuclear properties of short-lived isotopes. Their work contributes to understanding the synthesis of elements in stellar environments, especially in x-ray bursts and supernovae.
Research Overview
Research Output Trend
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Selected Papers
15Introduction 1. Carmaux, 1850-1890 2. The Craft of the Glassworker 3. Glassworkers and Miners: A Contrast 4. Mechanization 5. Socialism 6. The Strike of 1895 7. New Glassworkers and Old, 1896-1914 Epilogue: Three Portraits Appendix Bibliography Notes Index
We present the first comprehensive geochemical data (major elements and 31 trace elements by XRF and INAA) for the metamorphic cordierite-orthoamphibole (anthophyllite-gedrite) rocks (COR) that occur in the Early Proterozoic (~1.85 Ga) Svecofennian supracrustal rocks at Orijärvi, Finland, (eight samples) and associated cummingtonite-biotite-plagioclase gneisses five samples). COR (57.3-76.9 wt % SiO₂) are distinguished from (50.4-61.7 wt % SiO₂) by lower Sc, Cr, and Co, and by higher Zr, Hf, Nb,
The $^{18}\mathrm{Ne}(\ensuremath{\alpha},p)^{21}\mathrm{Na}$ reaction plays a crucial role in the $(\ensuremath{\alpha},p)$ process, which leads to the rapid proton capture process in x-ray bursts. The reaction rate depends upon properties of $^{22}\mathrm{Mg}$ levels above the $\ensuremath{\alpha}$ threshold at 8.14 MeV. Despite recent studies of these levels, only the excitation energies are known for most with no constraints on the spins. We have studied the $^{24}\mathrm{Mg}(p,t)^{22}\mathr
The interference effects among ${J}^{\ensuremath{\pi}}=3/{2}^{+}$ resonances in the $^{18}\mathrm{F}+p$ system have not been previously measured. $R$-matrix calculations show that the cross sections above the ${E}_{c.m.}=665$ keV resonance are sensitive to the interference between the ${E}_{c.m.}=8$, 38, and 665 keV resonances. An excitation function for the $^{1}\mathrm{H}$($^{18}\mathrm{F}$,\ensuremath{\alpha})$^{15}\mathrm{O}$ reaction has been measured in the energy range of ${E}_{c.m.}=663\
Michael S. Smith, Free Trade versus Protection in the Early Third Republic: Economic Interests, Tariff Policy, and the Making of the Republican Synthesis, French Historical Studies, Vol. 10, No. 2 (Autumn, 1977), pp. 293-314
The level structure of $^{22}\mathrm{Na}$ has been studied at the Holifield Radioactive Ion Beam Facility in Oak Ridge National Laboratory using the $^{24}\mathrm{Mg}$($p$,$^{3}\mathrm{He}$)$^{22}\mathrm{Na}$ reaction. Proton beams of 41 and 41.5 MeV were generated by the 25-MV tandem accelerator and bombarded isotopically enriched $^{24}\mathrm{Mg}$ targets. Angular distributions of recoiling $^{3}\mathrm{He}$ particles were extracted by using a segmented annular silicon strip detector array. S
A Computational Infrastructure for Nuclear Astrophysics has been developed to streamline the inclusion of the latest nuclear physics data in astrophysics simulations. The infrastructure consists of a platform‐independent suite of computer codes that is freely available online at nucastrodata.org. Features of, and future plans for, this software suite are given.
Knowledge of the 3He(3He,2p)4He reaction is important for understanding stellar burning and solar neutrino production. Previous measurements have found a surprisingly large rise in the cross section at low energies that could be due to a low-energy resonance in the 3He + 3He (6Be) system or electron screening. In the 6Be nucleus, however, no excited states have been observed above the first 2+ state at E x = 1.67 MeV up to 23 MeV, even though several are expected. The 2H(7Be,3H)6Be reaction has
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