Zobrazeno 1 - 10
of 972
pro vyhledávání: '"Wark, J"'
Autor:
Amouretti, A., Crépisson, C., Azadi, S., Cabaret, D., Campbell, T., Chin, D. A., Colin, B., Collins, G. R., Crandall, L., Fiquet, G., Forte, A., Gawne, T., Guyot, F., Heighway, P., Lee, H., McGonegle, D., Nagler, B., Pintor, J., Polsin, D., Rousse, G., Shi, Y., Smith, E., Wark, J. S., Vinko, S. M., Harmand, M.
We present in-situ x-ray diffraction and velocity measurements of Fe$_2$O$_3$ under laser shock compression at pressures between 38-116 GPa. None of the phases reported by static compression studies were observed. Instead, we observed an isostructura
Externí odkaz:
http://arxiv.org/abs/2402.18432
Autor:
Pérez-Callejo, G., Gawne, T., Preston, T. R., Hollebon, P., Humphries, O. S., Chung, H. -K., Dakovski, G. L., Krzywinski, J., Minitti, M. P., Burian, T., Chalupský, J., Hájková, V., Juha, L., Vozda, V., Zastrau, U., Vinko, S. M., Rose, S. J., Wark, J. S.
We report on experiments where solid-density Mg plasmas are created by heating with the focused output of the Linac Coherent Light Source x-ray free-electron-laser. We study the K-shell emission from the Helium and Lithium-like ions using Bragg cryst
Externí odkaz:
http://arxiv.org/abs/2310.03590
Autor:
Avraam, P., McGonegle, D., Heighway, P. G., Wehrenberg, C. E., Floyd, E., Comley, A., Foster, J. M., Turner, J., Case, S., Wark, J. S.
Wehrenberg et. al. [Nature 550 496 (2017)] used ultrafast in situ x-ray diffraction at the LCLS x-ray free-electron laser facility to measure large lattice rotations resulting from slip and deformation twinning in shock-compressed laser-driven [110]
Externí odkaz:
http://arxiv.org/abs/2108.05166
Autor:
Pandolfi, S., Brown, S. Brennan, Stubley, P. G., Higginbotham, A., Bolme, C. A., Lee, H. J., Nagler, B., Galtier, E., Sandberg, R., Yang, W., Mao, W. L., Wark, J. S., Gleason, A.
Silicon (Si) is one of the most abundant elements on Earth, and it is the most important and widely used semiconductor, constituting the basis of modern electronic devices. Despite extensive study, some properties of Si remain elusive. For example, t
Externí odkaz:
http://arxiv.org/abs/2106.06108
Autor:
Vinko, S. M., Vozda, V., Andreasson, J., Bajt, S., Bielecki, J., Burian, T., Chalupsky, J., Ciricosta, O., Desjarlais, M. P., Fleckenstein, H., Hajdu, J., Hajkova, V., Hollebon, P., Juha, L., Kasim, M. F., McBride, E. E., Muehlig, K., Preston, T. R., Rackstraw, D. S., Roling, S., Toleikis, S., Wark, J. S., Zacharias, H.
Publikováno v:
Phys. Rev. Lett. 124, 225002 (2020)
The free-free opacity in plasmas is fundamental to our understanding of energy transport in stellar interiors and for inertial confinement fusion research. However, theoretical predictions in the challenging dense plasma regime are conflicting and th
Externí odkaz:
http://arxiv.org/abs/2001.06639
Autor:
Humphries, O. S., Marjoribanks, R. S., Berg, Q. van den, Galtier, E. C., Kasim, M. F., Lee, H. J., Miscampbell, A. J. F., Nagler, B., Royle, R., Wark, J. S., Vinko, S. M.
Publikováno v:
Phys. Rev. Lett. 125, 195001 (2020)
The development of high-brightness free-electron lasers (FEL) has revolutionised our ability to create and study matter in the high-energy-density (HED) regime. Current diagnostic techniques have been very successful in yielding information on fundam
Externí odkaz:
http://arxiv.org/abs/2001.05813
Akademický článek
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Autor:
Hollebon, P., Ciricosta, O., Desjarlais, M. P., Cacho, C., Spindloe, C., Springate, E., Turcu, I. C. E., Wark, J. S., Vinko, S. M.
Publikováno v:
Phys. Rev. E 100, 043207 (2019)
The free-free opacity in dense systems is a property that both tests our fundamental understanding of correlated many-body systems, and is needed to understand the radiative properties of high energy-density plasmas. Despite its importance, predictiv
Externí odkaz:
http://arxiv.org/abs/1806.02726
X-ray emission spectroscopy is a well-established technique used to study continuum lowering in dense plasmas. It relies on accurate atomic physics models to robustly reproduce high-resolution emission spectra, and depends on our ability to identify
Externí odkaz:
http://arxiv.org/abs/1802.01234
Akademický článek
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