Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Moshe Fraenkel"'
We study the phenomena of radiative-driven shock waves using a semi-analytic model based on self similar solutions of the radiative hydrodynamic problem. The relation between the hohlraum drive temperature $T_{\mathrm{Rad}}$ and the resulting ablativ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1645216594c3da38b7d8f3d82952d881
Autor:
Moshe Fraenkel, Izhak Levy, Tomer Shussman, Liron Danon, Y. Ehrlich, Gilad Hurvitz, Z. Shpilman, S. Maman
Publikováno v:
The Review of scientific instruments. 90(1)
A new system which combines two independent diagnostic devices on the same line of sight is used to measure the X-ray spectrum in the 50-1000 eV regime. The first device is an array of six channels of time-resolved X-ray diodes (XRD's), arranged to c
Autor:
E. Marley, Moshe Fraenkel, Mark Foord, Gabriel Pérez Callejo, Y. Ehrlich, Marilyn Schneider, Gregory Kemp, Y. Frank
Publikováno v:
Physics of Plasmas. 27:063301
The calculation of open shell ionization level and radiative properties of materials in Non-Local Thermal Equilibrium (NLTE) is currently still a major challenge for any atomic model. The predictions of various NLTE atomic codes at these conditions s
Autor:
Shalom Eliezer, Noam Eliaz, Ronen Verker, F. Beckmann, Moshe Fraenkel, K. Pranzas, Eitan Grossman, Irina Gouzman, S. Maman
Publikováno v:
Acta Materialia. 52:5539-5549
Space debris population in low Earth orbit has been increasing constantly with the increase in spacecraft missions. Hypervelocity space debris impacts limit the functionality of polymeric outer surfaces and, in extreme cases, might cause a total loss
Autor:
Moshe Fraenkel, Arie Zigler, E. Moshe, Zohar Henis, S. Maman, A. Ludmirsky, Shalom Eliezer, Y. Horowitz
Publikováno v:
Journal of Applied Physics. 80:5598-5603
An experimental study was performed to find the optimal conditions for generating a few nanoseconds x‐ray pulse source in the wavelength range 4–14 A. X rays were emitted in a high‐temperature plasma, which was created as the result of the inte
A novel fabrication method for soft x-ray transmission grating and other optical elements is presented. The method uses Focused-Ion-Beam (FIB) technology to fabricate high-quality free standing grating bars on Transmission Electron Microscopy grids (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e1518330167183555efc957051757a3
http://arxiv.org/abs/1207.4562
http://arxiv.org/abs/1207.4562
Publikováno v:
Journal of Applied Physics. 75:8085-8089
The reflectivity of tungsten‐carbon (W‐C) multilayers, heated by 7 ns Nd‐YAG laser pulses was measured using soft x‐ray radiation at 4.4 nm. The reflectivity permanently increased and the Bragg angle decreased after heating the multilayer at
Autor:
Y. Katzir, Arie Zigler, Yonatan Sivan, Shmuel Eisenmann, Y. Ehrlich, Gadi Fibich, Moshe Fraenkel, E. Louzon
Publikováno v:
Optics express. 14(12)
We show experimentally for ultrashort laser pulses propagating in air, that the collapse/filamentation distance of intense laser pulses in the atmosphere can be extended and controlled with a simple double-lens setup. We derive a simple formula for t
Publikováno v:
SPIE Proceedings.
The threshold fluence for laser induced damage in wide band gap dielectric materials, such as fused silica and MgF 2 , is observed to be lower by up to 20% for negatively (down) chirped pulses than for positively (up) chirped, at pulse durations rang
Autor:
Irina Gouzman, Shalom Eliezer, S. Pecker, S. Maman, Yossi Lereah, Moshe Fraenkel, Y. Horovitz, Eitan Grossman, Noam Eliaz, Zohar Henis, D. Fisher
Publikováno v:
Physical Review B. 69
First, a simple model describes theoretically the processes involved in the irradiation of solid targets by femtosecond laser pulses and predicts the optimal target and laser parameters for efficient nanoparticles synthesis. Then, we show experimenta