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Titolo:
Beam matter interaction physics for fast ignitors
Autore:
Boreham, BW; Bolton, PR; Newman, DS; Hora, H; Aydin, M; Azechi, H; Cicchitelli, L; Eliezer, S; Goldsworthy, MP; Hauser, T; Kasotakis, G; Kitagawa, Y; Martinez-Val, JM; Mima, K; Murakami, M; Nishihara, K; Piera, M; Ray, PS; Scheid, W; Sarris, E; Stening, RJ; Takabe, H; Velarde, G; Yamanaka, M; Yamanaka, T; Castillo, R; Osman, F;
Indirizzi:
Univ Cent Queensland, Rockhampton, Qld 4702, Australia Univ Cent Queensland Rockhampton Qld Australia 4702 , Qld 4702, Australia Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94550 USA Univ CalifLawrence Livermore Natl Lab Livermore CA USA 94550 A 94550 USA Univ New S Wales, Sydney, NSW 2052, Australia Univ New S Wales Sydney NSWAustralia 2052 s, Sydney, NSW 2052, Australia Hacettepe Univ, Dept Phys, TR-06532 Ankara, Turkey Hacettepe Univ AnkaraTurkey TR-06532 Dept Phys, TR-06532 Ankara, Turkey Osaka Univ, Inst Laser Engn, Suita, Osaka 565, Japan Osaka Univ Suita Osaka Japan 565 Inst Laser Engn, Suita, Osaka 565, Japan Canon Australia, N Ryde, NSW 2113, Australia Canon Australia N Ryde NSW Australia 2113 ia, N Ryde, NSW 2113, Australia Silex Pty Ltd, N Ryde, NSW 2113, Australia Silex Pty Ltd N Ryde NSW Australia 2113 Ltd, N Ryde, NSW 2113, Australia Albat & Wirsam, D-35440 Linden, Germany Albat & Wirsam Linden Germany D-35440 & Wirsam, D-35440 Linden, Germany Natl Observ, Athens, Greece Natl Observ Athens GreeceNatl Observ, Athens, Greece Polytech Univ, Madrid, Spain Polytech Univ Madrid SpainPolytech Univ, Madrid, Spain Def Sci & Technol Org, Salisbury, SA 5108, Australia Def Sci & Technol Org Salisbury SA Australia 5108 ury, SA 5108, Australia Univ Western Sydney Macarthur, Campbelltown, NSW 2560, Australia Univ Western Sydney Macarthur Campbelltown NSW Australia 2560 , Australia
Titolo Testata:
FUSION ENGINEERING AND DESIGN
, volume: 44, anno: 1999,
pagine: 215 - 224
SICI:
0920-3796(199902)44:<215:BMIPFF>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
FREE-FREE TRANSITIONS; VOLUME IGNITION; NEUTRON YIELD; LASER-PULSES; ACCELERATION; PLASMAS; FUSION; ELECTRONS; LIGHT; SUPERPOSITION;
Keywords:
fast ignitor scheme; fusion energy; laser interaction; DT-fuel;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
60
Recensione:
Indirizzi per estratti:
Indirizzo: Boreham, BW Univ Cent Queensland, Rockhampton, Qld 4702, Australia Univ Cent Queensland Rockhampton Qld Australia 4702 Australia
Citazione:
B.W. Boreham et al., "Beam matter interaction physics for fast ignitors", FUSION ENG, 44, 1999, pp. 215-224

Abstract

The fast ignitor scheme for achieving inertial fusion energy precompressesthe DT fuel to more than 1000 times the solid state density with nanosecond laser pulses. It then employs a picosecond 10-100-PW laser pulse to deposit with very high efficiency the energy necessary to achieve the ignition temperature of approx. 4 keV. In this way the necessary driver energy for inertial fusion energy reactors is reduced from the megajoule level to the 100-kJ level. In this article, we present results relevant to the developmentof the fast ignitor scheme that have been achieved in recent years by Australian teams in collaboration with international teams. The topics that arespecifically addressed are: (1) forces and relativistic mechanisms of laser interaction with the electrons in the intense picosecond beams; (2) electron and ion emission from the focused beam into the precompressed plasma, including double layer effects and collective stopping power; and (3) the energy of the picosecond beam, which when nearly uniformly deposited into theprecompressed DT-fuel can achieve the conditions for high-gain volume ignition. Positive results are derived for volume ignition scheme from considerations of recent high neutron gain laser fusion experiments. (C) 1999 Published by Elsevier Science S.A. All rights reserved.

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Documento generato il 05/04/20 alle ore 12:55:57