Search Results - "Coppari, F."

Metastability of diamond ramp-compressed to 2 terapascals by Lazicki, A., McGonegle, D., Rygg, J. R., Braun, D. G., Swift, D. C., Gorman, M. G., Smith, R. F., Heighway, P. G., Higginbotham, A., Suggit, M. J., Fratanduono, D. E., Coppari, F., Wehrenberg, C. E., Kraus, R. G., Erskine, D., Bernier, J. V., McNaney, J. M., Rudd, R. E., Collins, G. W., Eggert, J. H., Wark, J. S.

“…Carbon is the fourth-most prevalent element in the Universe and essential for all known life. In the elemental form it is found in multiple allotropes,…”
Get full text

Measurement of Body-Centered Cubic Gold and Melting under Shock Compression by Briggs, R, Coppari, F, Gorman, M G, Smith, R F, Tracy, S J, Coleman, A L, Fernandez-Pañella, A, Millot, M, Eggert, J H, Fratanduono, D E

“…We combined laser shock compression with in situ x-ray diffraction to probe the crystallographic state of gold (Au) on its principal shock Hugoniot. Au has…”
Get full text

Probing the Solid Phase of Noble Metal Copper at Terapascal Conditions by Fratanduono, D E, Smith, R F, Ali, S J, Braun, D G, Fernandez-Pañella, A, Zhang, S, Kraus, R G, Coppari, F, McNaney, J M, Marshall, M C, Kirch, L E, Swift, D C, Millot, M, Wicks, J K, Eggert, J H

“…Ramp compression along a low-temperature adiabat offers a unique avenue to explore the physical properties of materials at the highest densities of their solid…”
Get full text

Structure and density of silicon carbide to 1.5 TPa and implications for extrasolar planets by Kim, D., Smith, R. F., Ocampo, I. K., Coppari, F., Marshall, M. C., Ginnane, M. K., Wicks, J. K., Tracy, S. J., Millot, M., Lazicki, A., Rygg, J. R., Eggert, J. H., Duffy, T. S.

“…There has been considerable recent interest in the high-pressure behavior of silicon carbide, a potential major constituent of carbon-rich exoplanets. In this…”
Get full text

Coordination changes in liquid tin under shock compression determined using in situ femtosecond x-ray diffraction by Briggs, R., Gorman, M. G., Zhang, S., McGonegle, D., Coleman, A. L., Coppari, F., Morales-Silva, M. A., Smith, R. F., Wicks, J. K., Bolme, C. A., Gleason, A. E., Cunningham, E., Lee, H. J., Nagler, B., McMahon, M. I., Eggert, J. H., Fratanduono, D. E.

“…Little is known regarding the liquid structure of materials compressed to extreme conditions, and even less is known about liquid structures undergoing rapid…”
Get full text

Experimental evidence for a phase transition in magnesium oxide at exoplanet pressures by Coppari, F., Smith, R. F., Eggert, J. H., Wang, J., Rygg, J. R., Lazicki, A., Hawreliak, J. A., Collins, G. W., Duffy, T. S

“…Little is known about the structure of possible mantle materials of extra-solar super-Earths with interior pressures of up to 1,000 GPa. Dynamic X-ray…”
Get full text

Implications of the iron oxide phase transition on the interiors of rocky exoplanets by Coppari, F., Smith, R. F., Wang, J., Millot, M., Kim, D., Rygg, J. R., Hamel, S., Eggert, J. H., Duffy, T. S.

“…The discovery of an extraordinary number of extrasolar planets, characterized by an unexpected variety of sizes, masses and orbits, challenges our…”
Get full text

Extended X-ray absorption fine structure of dynamically-compressed copper up to 1 terapascal by Sio, H., Krygier, A., Braun, D. G., Rudd, R. E., Bonev, S. A., Coppari, F., Millot, M., Fratanduono, D. E., Bhandarkar, N., Bitter, M., Bradley, D. K., Efthimion, P. C., Eggert, J. H., Gao, L., Hill, K. W., Hood, R., Hsing, W., Izumi, N., Kemp, G., Kozioziemski, B., Landen, O. L., Le Galloudec, K., Lockard, T. E., Mackinnon, A., McNaney, J. M., Ose, N., Park, H.-S., Remington, B. A., Schneider, M. B., Stoupin, S., Thorn, D. B., Vonhof, S., Wu, C. J., Ping, Y.

“…Large laser facilities have recently enabled material characterization at the pressures of Earth and Super-Earth cores. However, the temperature of the…”
Get full text

Solid iron compressed up to 560 GPa by Ping, Y, Coppari, F, Hicks, D G, Yaakobi, B, Fratanduono, D E, Hamel, S, Eggert, J H, Rygg, J R, Smith, R F, Swift, D C, Braun, D G, Boehly, T R, Collins, G W

“…Dynamic compression by multiple shocks is used to compress iron up to 560 GPa (5.6 Mbar), the highest solid-state pressure yet attained for iron in the…”
Get full text

Melting of Tantalum at Multimegabar Pressures on the Nanosecond Timescale by Kraus, R. G., Coppari, F., Fratanduono, D. E., Smith, R. F., Lazicki, A., Wehrenberg, C., Eggert, J. H., Rygg, J. R., Collins, G. W.

“…Tantalum was once thought to be the canonical bcc metal, but is now predicted to transition to the Pnma phase at the high pressures and temperatures expected…”
Get full text

X-Ray Diffraction of Ramp-Compressed Silicon to 390 GPa by Gong, X, Polsin, D N, Paul, R, Henderson, B J, Eggert, J H, Coppari, F, Smith, R F, Rygg, J R, Collins, G W

“…Silicon (Si) exhibits a rich collection of phase transitions under ambient-temperature isothermal and shock compression. This report describes in situ…”
Get full text

X-Ray Diffraction of Solid Tin to 1.2 TPa by Lazicki, A, Rygg, J R, Coppari, F, Smith, R, Fratanduono, D, Kraus, R G, Collins, G W, Briggs, R, Braun, D G, Swift, D C, Eggert, J H

“…We report direct in situ measurements of the crystal structure of tin between 0.12 and 1.2 TPa, the highest stress at which a crystal structure has ever been…”
Get full text

Experimental observation of open structures in elemental magnesium at terapascal pressures by Gorman, M. G., Elatresh, S., Lazicki, A., Cormier, M. M. E., Bonev, S. A., McGonegle, D., Briggs, R., Coleman, A. L., Rothman, S. D., Peacock, L., Bernier, J. V., Coppari, F., Braun, D. G., Rygg, J. R., Fratanduono, D. E., Hoffmann, R., Collins, G. W., Wark, J. S., Smith, R. F., Eggert, J. H., McMahon, M. I.

“…Investigating how solid matter behaves at enormous pressures, such as those found in the deep interiors of giant planets, is a great experimental challenge…”
Get full text

Optimized continuum x-ray emission from laser-generated plasma by Krygier, A., Kemp, G. E., Coppari, F., Thorn, D. B., Bradley, D., Do, A., Eggert, J. H., Hsing, W., Khan, S. F., Krauland, C., Landen, O. L., MacDonald, M. J., McNaney, J. M., Park, H.-S., Remington, B. A., Rubery, M., Schneider, M. B., Sio, H., Ping, Y.

“…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…”
Get full text

Measurement of Body-Centered-Cubic Aluminum at 475 GPa by Polsin, D N, Fratanduono, D E, Rygg, J R, Lazicki, A, Smith, R F, Eggert, J H, Gregor, M C, Henderson, B H, Delettrez, J A, Kraus, R G, Celliers, P M, Coppari, F, Swift, D C, McCoy, C A, Seagle, C T, Davis, J-P, Burns, S J, Collins, G W, Boehly, T R

“…Nanosecond in situ x-ray diffraction and simultaneous velocimetry measurements were used to determine the crystal structure and pressure, respectively, of…”
Get full text

Metastability of Liquid Water Freezing into Ice VII under Dynamic Compression by Marshall, M. C., Millot, M., Fratanduono, D. E., Sterbentz, D. M., Myint, P. C., Belof, J. L., Kim, Y.-J., Coppari, F., Ali, S. J., Eggert, J. H., Smith, R. F., McNaney, J. M.

“…The ubiquitous nature and unusual properties of water have motivated many studies on its metastability under temperature- or pressure-induced phase…”
Get full text

Author Correction: Metastability of diamond ramp-compressed to 2 terapascals by Lazicki, A., McGonegle, D., Rygg, J. R., Braun, D. G., Swift, D. C., Gorman, M. G., Smith, R. F., Heighway, P. G., Higginbotham, A., Suggit, M. J., Fratanduono, D. E., Coppari, F., Wehrenberg, C. E., Kraus, R. G., Erskine, D., Bernier, J. V., McNaney, J. M., Rudd, R. E., Collins, G. W., Eggert, J. H., Wark, J. S.

Get full text

Lattice-level observation of the elastic-to-plastic relaxation process with subnanosecond resolution in shock-compressed Ta using time-resolved in situ Laue diffraction by Wehrenberg, C. E., Comley, A. J., Barton, N. R., Coppari, F., Fratanduono, D., Huntington, C. M., Maddox, B. R., Park, H.-S., Plechaty, C., Prisbrey, S. T., Remington, B. A., Rudd, R. E.

“…We report direct lattice level measurements of plastic relaxation kinetics through time-resolved, in-situ Laue diffraction of shock-compressed single-crystal…”
Get full text

Erratum: Measurement of Body-Centered-Cubic Aluminum at 475 GPa [Phys. Rev. Lett. 119, 175702 (2017)] by Polsin, D N, Fratanduono, D E, Rygg, J R, Lazicki, A, Smith, R F, Eggert, J H, Gregor, M C, Henderson, B H, Delettrez, J A, Kraus, R G, Celliers, P M, Coppari, F, Swift, D C, McCoy, C A, Seagle, C T, Davis, J-P, Burns, S J, Collins, G W, Boehly, T R

“…This corrects the article DOI: 10.1103/PhysRevLett.119.175702…”
Get full text

Long-Duration X-Ray Source Development for X-Ray Diffraction at The National Ignition Facility by Werellapatha, K., Hall, G. N., Coppari, F., Kemp, G. E., Krygier, A., Palmer, N. E., Krauland, C., Khan, S. F., Lazicki, A., Gorman, M. G., Nagel, S. R., Heinbockel, C., Bhandarkar, N., Masters, N., Bradley, D. K., Eggert, J.H., Benedetti, L. R.

“…We investigate the feasibility of producing x-ray sources over timescales relevant to support time-resolved x-ray diffraction (XRDt) measurements during…”
Get full text