Prof Peter Norreys FInstP;: Publications

Fast Ignition Research at the Institute of Laser Engineering, Osaka University

AIP Conference Proceedings AIP Publishing 669:1 (2003) 257-260

Authors:

KA Tanaka, R Kodama, Y Kitagawa, H Fujita, T Jitsuno, K Mima, N Miyanaga, T Norimatsu, Y Sentoku, K Shigemori, A Sunahara, T Miyakoshi, F Otani, T Sato, M Tanpo, Y Tohyama, T Yamanaka, K Krushelnick, PA Norreys, M Zepf

Propagation instabilities of high-intensity laser-produced electron beams

Physical Review Letters 90:17 (2003) 175001/4

Authors:

M Tatarakis, FN Beg, EL Clark, AE Dangor, RD Edwards, RG Evans, TJ Goldsack, KWD Ledingham, PA Norreys, MA Sinclair, MS Wei, M Zepf, K Krushelnick

Abstract:

An innovative target design was used to perform the first studies of the propagation of very high current laser-produced electron beams in a regime relevant to the fast ignition scheme. Although it appears that (Weibel) and two-stream instabilities in plasmas where the beam density was close to the background plasma density-use of cone-guided schemes for fast ignition may be able to reduce the propagation distance of the electron beam and reduce the effect of these instabilities.

Basic and integrated studies for fast ignition

Physics of Plasmas 10:5 II (2003) 1925-1930

Authors:

KA Tanaka, R Kodama, K Mima, Y Kitagawa, H Fujita, N Miyanaga, K Nagai, T Norimatsu, T Sato, Y Sentoku, K Shigemori, A Sunahara, T Shozaki, M Tanpo, S Tohyama, T Yabuuchi, J Zheng, T Yamanaka, PA Norreys, R Evanse, M Zepf, K Krushelnic, A Dangor, R Stephens, S Hatchett, M Tabak, R Turner

Abstract:

The process of fast ignition (FI) using various laser systems was analyzed. A Petta watt (PW) laser system was used to study the basic elements relevant to FI, which could also be injected to a compressed core. Using a spherical target inserted with a Au cone guide for the PW laser pulse, an imploded core was heated upto 1 keV resulting in neutron increase which is 1000 times more than that without heating pulse.

Propagation Instabilities of High-Intensity Laser-Produced Electron Beams

Physical Review Letters American Physical Society (APS) 90:17 (2003) 175001

Authors:

M Tatarakis, FN Beg, EL Clark, AE Dangor, RD Edwards, RG Evans, TJ Goldsack, KWD Ledingham, PA Norreys, MA Sinclair, M-S Wei, M Zepf, K Krushelnick

Experimental study of proton emission from 60-fs, 200-mJ high-repetition-rate tabletop-laser pulses interacting with solid targets

Physical Review E Statistical Nonlinear and Soft Matter Physics 67:4 2 (2003) 464021-464025

Authors:

I Spencer, KWD Ledingham, P McKenna, T McCanny, RP Singhal, PS Foster, D Neely, AJ Langley, EJ Divall, CJ Hooker, RJ Clarke, PA Norreys, EL Clark, K Krushelnick, JR Davies

Abstract:

Proton emission from 60-fs, 200-mJ high-repetition-rate tabletop-laser pulses interacting with solid targets was studied. A maximum proton energy of 1.5 MeV was measured for Mylar targets of thickness 20-40 μm. Results showed a maximum energy of 950 keV for 12μm for aluminum targets, and 850 keV for 12.5μm for copper targets.

51��