Abstract
We investigate electron generation at intensities of relevance to Fast Ignition using second harmonic laser pulses, motivated by the need to understand the wavelength scaling of the processes and also the ability to obtain clean, prepulse free, target interaction conditions. 700fs duration pulses with peak intensities up to 5 x 1019 W cm-2 were employed at the TITAN laser facility at LLNL. Both planar and cone target geometries were studied using copper k-alpha imaging of tracer layers, Bremsstrahlung x-ray emission measurements of conversion efficiency and beam divergence and magnetic spectrometer measurements of escaping electrons to characterize the electron generation and propagation. Results of electron temperature and angular divergence will be presented.
Original language | English |
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Number of pages | 1 |
Publication status | Published - Oct 2011 |
Event | American Physical Society, 53rd Annual Meeting of the APS Division of Plasma Physics - Salt Palace Convention Center., Salt Lake City, United States Duration: 14 Nov 2011 → 18 Nov 2011 Conference number: 53 https://www.aps.org/meetings/meeting.cfm?name=DPP11 |
Conference
Conference | American Physical Society, 53rd Annual Meeting of the APS Division of Plasma Physics |
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Abbreviated title | APS-DPP |
Country/Territory | United States |
City | Salt Lake City |
Period | 14/11/11 → 18/11/11 |
Internet address |