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Single event laser fusion using ns-MJ laser pulses

Published online by Cambridge University Press:  05 December 2005

GEORGE H. MILEY ,
H. HORA ,
F. OSMAN ,
P. EVANS  and
P. TOUPS
GEORGE H. MILEY
Affiliation:
Fusion Studies Laboratory, University of Illinois, Urbana, Illinois
H. HORA
Affiliation:
Department of Theoretical Physcis, University of New South Wales, Sydney, Australia School Quantitative Methods of Mathematical Science, University of Western Sydney, Perth, Australia
F. OSMAN
Affiliation:
School Quantitative Methods of Mathematical Science, University of Western Sydney, Perth, Australia
P. EVANS
Affiliation:
School Quantitative Methods of Mathematical Science, University of Western Sydney, Perth, Australia
P. TOUPS
Affiliation:
School Quantitative Methods of Mathematical Science, University of Western Sydney, Perth, Australia
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Abstract

Studies of single-event laser-target interaction for fusion reaction schemes leading to volume ignition are discussed. Conditions were explored where single-event ns-laser pulses give rise to temperatures sufficient for volume ignition. Thus, ignition is possible, particularly if X-ray reabsorption is sufficiently high. Unfortunately, this scheme requires laser pulses with energies above 5 MJ and target densities of compressed DT above 1000 g/cm−3. Both requirements are quite demanding for near term systems. Nevertheless the present state technology and the detailed knowledge about volume ignition at direct drive are a basis. Systems as NIF or LMJ can well confirm these physics-clarified conditions and the technology for large laser systems with sufficient repetition rate and for a drastic reduction of the size and costs is necessary and possible and by physics similar to the known reductions in transistor development.

Keywords

Beam smoothingInertial FusionNanosecond laser fusionSuppression of instabilitiesVolume ignition
Type
Workshop on Fast High Density Plasma Blocks Driven By Picosecond Terawatt Lasers
Information
Laser and Particle Beams , Volume 23 , Issue 4 , October 2005 , pp. 453 - 460
Copyright
© 2005 Cambridge University Press

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References

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