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Propagation of a short-pulse laser-driven electron beam in matter.
- Source :
-
Physics of Plasmas . Mar2013, Vol. 20 Issue 3, p033105-033105-10. 1p. 4 Color Photographs, 1 Black and White Photograph, 1 Chart, 7 Graphs. - Publication Year :
- 2013
-
Abstract
- We studied the transport of an intense electron beam produced by high intensity laser pulses through metals and insulators. Targets were irradiated at two different intensities, 1017 W/cm2 and 1019 W/cm2, at the laser facility Xtreme Light XL-III in Beijing, a Ti:Sa laser source emitting 40 fs pulses at 800 nm. The main diagnostic was Cu-Kα fluorescence imaging. Images of Kα spots have been collected for those two laser intensities, for different target thickness, and for different materials. Experimental results are analyzed taking into account both collisional and collective effects as well as refluxing at the edge of the target. The target temperature is evaluated to be Tc ∼ 6 eV for intensity I = 1017 W/cm2 (for all the tested materials: plastic, aluminium, and copper), and Tc ∼ 60 eV in aluminium and 120 eV in titanium for intensity I = 1019 W/cm2. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CATHODE rays
*ELECTRONS
*ELECTRIC conductivity
*ELECTRON beams
*GEOMETRY
Subjects
Details
- Language :
- English
- ISSN :
- 1070664X
- Volume :
- 20
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Physics of Plasmas
- Publication Type :
- Academic Journal
- Accession number :
- 86447101
- Full Text :
- https://doi.org/10.1063/1.4793453