Aachen PK 2003 – wissenschaftliches Programm
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P: Plasmaphysik
P VII: HV VII
P VII.1: Hauptvortrag
Mittwoch, 19. März 2003, 11:00–11:30, FO1
Fast ignition of inertially confined fusion plasmas — •Matt Zepf1, Kodama R2, Norreys PA3, Mima K2, Dangor AE4, Evans RG5, Fujita H2, Kitagawa Y2, Krushelnick K4, Miaykoshi T2, Miyanaga N2, Norimatsu T2, Rose S.J.3, Shozaki T2, Shigemori K2, Sunahara A2, Tampo M2, Tanaka K2, Toyama Y2, and Yamanaka T2 — 1Queen’s University, Belfast, UK — 2Institute of Laser Engineering, Osaka, Japan — 3Rutherford Appleton Laboratory, UK — 4Imperial College, London, UK — 5University of York, York, UK
The Fast Ignition concept in inertial fusion energy research relies on separating the compression of the fusion fuel and its heating into two distinct phases. Compression is achieved by conventional laser fusion techniques, while heating is achieved using fast electrons produced by high power, short pulse lasers. This approach promises to make ignition and fusion energy gain more achievable, while increasing the maximum energy gain at the same time[1]. A particularly promising approach are the recent cone guided implosions pioneered at the Rutherford Appleton Laboratory, UK [2] and the Institute for Laser Engineering in Japan[3,4]. In these experiments the usual spherically symmetric implosions are replaced by cone guided implosions. This allows better coupling of the short pulse laser to the compressed fuel and also has advantages for the production of the fast electrons. Recent encouraging results from integrated experiments will be presented. [1] M. Tabak et al, Phys. Plasmas , Vol 1, pp 1626 (1994) [2] Norreys et al. Phys. Plasmas 7, 3721(2000). [3] R. Kodama et al. Nature ,Vol 412, 798 (2001) [4] R. Kodama et al., Nature, Vol 418, p. 933 (2002)