Zobrazeno 1 - 10
of 2 066
pro vyhledávání: '"FOX, W."'
Autor:
Lezhnin, K. V., Totorica, S. R., Hyder, A. S., Griff-McMahon, J., Adams, M. B. P., Tzeferacos, P., Diallo, A., Fox, W.
The design and analysis of high energy density (HED) laser experiments typically rely on radiation hydrodynamics simulations. However, some laser-plasma interaction regimes are not collisional and cannot be adequately modeled with hydrodynamics. For
Externí odkaz:
http://arxiv.org/abs/2409.17327
Autor:
Musedinovic, R., Blokland, L. S., Cude-Woods, C. B., Singh, M., Blatnik, M. A., Callahan, N., Choi, J. H., Clayton, S., Filippone, B. W., Fox, W. R., Fries, E., Geltenbort, P., Gonzalez, F. M., Hayen, L., Hickerson, K. P., Holley, A. T., Ito, T. M., Komives, A., Lin, S, Liu, Chen-Yu, Makela, M. F., O'Shaughnessy, C. M., Pattie Jr, R. W., Ramsey, J. C., Salvat, D. J., Saunders, A., Seestrom, S. J., Sharapov, E. I., Tang, Z., Uhrich, F. W., Vanderwerp, J., Walstrom, P., Wang, Z., Young, A. R., Morris, C. L.
Here we publish three years of data for the UCNtau experiment performed at the Los Alamos Ultra Cold Neutron Facility at the Los Alamos Neutron Science Center. These data are in addition to our previously published data. Our goals in this paper are t
Externí odkaz:
http://arxiv.org/abs/2409.05560
Autor:
Griff-McMahon, J., Valenzuela-Villaseca, V., Malko, S., Fiksel, G., Rosenberg, M. J., Schaeffer, D. B., Fox, W.
Proton radiography is a central diagnostic technique for measuring electromagnetic (EM) fields in high-energy-density, laser-produced plasmas. In this technique, protons traverse the plasma where they accumulate small EM deflections which lead to var
Externí odkaz:
http://arxiv.org/abs/2408.10879
Autor:
Blatnik, M. F., Blokland, L. S., Callahan, N., Choi, J. H., Clayton, S., Cude-Woods, C. B, Filippone, B. W., Fox, W. R., Fries, E., Geltenbort, P., Gonzalez, F. M., Hayen, L., Hickerson, K. P., Holley, A. T., Ito, T. M., Komives, A., Lin, S, Liu, Chen-Yu, Makela, M. F., Morris, C. L., Musedinovic, R., O'Shaughnessy, C. M., Pattie Jr., R. W., Ramsey, J. C., Salvat, D. J., Saunders, A., Seestrom, S. J., Sharapov, E. I., Singh, M., Tang, Z., Uhrich, W. F., Vanderwerp, J., Walstrom, P., Wang, Z., Young, A. R.
The past two decades have yielded several new measurements and reanalysis of older measurements of the neutron lifetime. These have led to a 4.4 standard deviation discrepancy between the most precise measurements of the neutron decay rate producing
Externí odkaz:
http://arxiv.org/abs/2406.10378
Autor:
Valenzuela-Villaseca, V., Molina, J. M., Schaeffer, D. B., Malko, S., Griff-McMahon, J., Lezhnin, K., Rosenberg, M. J., Hu, S. X., Kalantar, D., Trosseille, C., Park, H. -S., Remington, B. A., Fiksel, G., Uzdensky, D., Bhattacharjee, A., Fox, W.
We present results from X-ray imaging of high-aspect-ratio magnetic reconnection experiments driven at the National Ignition Facility. Two parallel, self-magnetized, elongated laser-driven plumes are produced by tiling 40 laser beams. A magnetic reco
Externí odkaz:
http://arxiv.org/abs/2404.07799
Autor:
Datta, R, Chandler, K, Myers, C E, Chittenden, J P, Crilly, A J, Aragon, C, Ampleford, D J, Banasek, J T, Edens, A, Fox, W R, Hansen, S B, Harding, E C, Jennings, C A, Ji, H, Kuranz, C C, Lebedev, S V, Looker, Q, Patel, S G, Porwitzky, A J, Shipley, G A, Uzdensky, D A, Yager-Elorriaga, D A, Hare, J D
We present evidence for strong radiative cooling in a pulsed-power-driven magnetic reconnection experiment. Two aluminum exploding wire arrays, driven by a 20 MA peak current, 300 ns rise time pulse from the Z machine (Sandia National Laboratories),
Externí odkaz:
http://arxiv.org/abs/2401.17923
Autor:
Datta, R., Chandler, K., Myers, C. E., Chittenden, J. P., Crilly, A. J., Aragon, C., Ampleford, D. J., Banasek, J. T., Edens, A., Fox, W. R., Hansen, S. B., Harding, E. C., Jennings, C. A., Ji, H., Kuranz, C. C., Lebedev, S. V., Looker, Q., Patel, S. G., Porwitzky, A., Shipley, G. A., Uzdensky, D. A., Yager-Elorriaga, D. A., Hare, J. D.
We present results from the first experimental study of strongly radiatively-cooled magnetic reconnection. Two exploding aluminum wire arrays, driven simultaneously by the Z machine ($I_{max} = 20 \, \text{MA}$, $t_{\text{rise}} = 300 \, \text{ns}$),
Externí odkaz:
http://arxiv.org/abs/2401.04643
Autor:
Griff-McMahon, J., Malko, S., Valenzuela-Villaseca, V., Walsh, C., Fiksel, G., Rosenberg, M. J., Schaeffer, D. B., Fox, W.
Magnetic fields generated from a laser-foil interaction are measured with high fidelity using a proton radiography scheme with in situ x-ray fiducials. In contrast to prior findings under similar experimental conditions, this technique reveals the se
Externí odkaz:
http://arxiv.org/abs/2310.18592
Publikováno v:
Phys. Rev. E 110, 015206 (2024)
Proton deflectometry is increasingly used in magnetized high-energy-density plasmas to observe electromagnetic fields. We describe a reconstruction algorithm to recover the electromagnetic fields from proton fluence data in 1-D. The algorithm is veri
Externí odkaz:
http://arxiv.org/abs/2309.16165
Autor:
Ji, H., Yoo, J., Fox, W., Yamada, M., Argall, M., Egedal, J., Liu, Y. -H., Wilder, R., Eriksson, S., Daughton, W., Bergstedt, K., Bose, S., Burch, J., Torbert, R., Ng, J., Chen, L. -J.
Publikováno v:
ISSI book titled "Magnetic Reconnection: Explosive Energy Conversion in Space Plasmas" (2023)
A concise review is given on the past two decades' results from laboratory experiments on collisionless magnetic reconnection in direct relation with space measurements, especially by Magnetospheric Multiscale (MMS) mission. Highlights include spatia
Externí odkaz:
http://arxiv.org/abs/2307.07109