Results 231 to 240 of about 5,947 (263)

Innovative ignition scheme for ICF—impact fast ignition

Nuclear Fusion, 2005
A new ignition scheme is proposed, in which the compressed DT main fuel is ignited by impact collision of another fraction of separately imploded DT fuel, which is accelerated in the hollow conical target to super high velocities of about (1–2) × 108 cm s−1.
M Murakami, H Nagatomo, H Azechi, F Ogando, M Perlado, S Eliezer   +5 more
openaire   +1 more source

Micromachining of Fast Ignition Targets

Fusion Science and Technology, 2006
Fast ignition is a concept that is being actively investigated in the HED community. The fast ignition targets described here are highly precise targets composed of a small glow discharge polymer (GDP) shell (∼860 μm diameter) mounted on a gold hyperboloid tipped cone. The process of creating these targets is composed of several steps.
M. P. Mauldin, A. L. Greenwood, M. N. Kittelson, C. H. Shearer, J. N. Smith, D. M. Woodhouse   +5 more
openaire   +1 more source

Laser Challenges for Fast Ignition

Fusion Science and Technology, 2006
AbstractThe laser challenges and state of the art in high-energy, solid-state petawatt lasers for fast ignition (FI) research are reviewed. A number of new laser systems are currently under construction or being planned that will facilitate proof-of-principle FI experiments.
J. D. Zuegel, S. Borneis, C. Barty, B. Legarrec, C. Danson, N. Miyanaga, P. K. Rambo, C. Leblanc, T. J. Kessler, A. W. Schmid, L. J. Waxer, J. H. Kelly, B. Kruschwitz, R. Jungquist, E. Moses, J. Britten, I. Jovanovic, J. Dawson, N. Blanchot   +18 more
openaire   +1 more source

Inertial Confinement Fusion with Advanced Ignition Schemes: Fast Ignition and Shock Ignition

2013
Essential ingredients of inertial confinement fusion (ICF) are fuel compression to very high density and hot spot ignition. In the conventional approach to ICF both fuel compression and hot spot formation are produced by the implosion of a suitable target driven by a time-tailored pulse of laser light or X-rays.
openaire   +3 more sources

Fast Ignition: Overview and Background

Fusion Science and Technology, 2006
Fast ignition is an approach to inertial fusion in which precompressed fuel is ignited with an external heat source.
M. TABAK, D. HINKEL, ATZENI, Stefano, E. M. CAMPBELL, K. TANAKA   +4 more
openaire   +2 more sources

Study of fast ignition target design for ignition and burning experiments

Nuclear Fusion, 2019
For the fast ignition of laser fusion, a reliable target design is required for an ignition scale target. This paper shows the first optimized target design for the implosion phase of fast ignition, which is scalable to larger targets. The requirements from the heating process are taken account.
H. Nagatomo, T. Johzaki, T. Asahina, M. Hata, Y. Sentoku, K. Mima, H. Sakagami   +6 more
openaire   +1 more source

Laser-driven target for fast-ignition demonstration

Journal de Physique IV (Proceedings), 2006
The basis for the design of a direct-drive target for demonstrating inertial fusion fast ignition and burn propagation is discussed. A preliminary design of a target driven by a pulse of about 300 kJ and ignited by an ultraintense pulse of about 100 kJ is presented and illustrated by 1-D simulations of the implosion stage and 2-D simulations of ...
ATZENI, Stefano, C. BELLEI, SCHIAVI, ANGELO   +2 more
openaire   +1 more source

Numerical and theoretical studies on basic issues for fast ignition: from fast particle generation to beam driven ignition

SPIE Proceedings, 2003
ABSTRACT In all recently proposed schemes for laser-driven Fast Ignition (Fl) of Inertial Confinement Fusion (ICF) targets,two key elements are the conversion of the energy of a Petawatt laser pulse into a beam of strongly relativisticelectrons and its transport through a dense plasma or a solid target.
ATZENI, Stefano, ANTONICCI A, BATANI D, CALIFANO F, CORNOLTI F, HONRUBIA J. J, LISSEIKINA T. V, MACCHI A, PEGORARO F, TEMPORAL M.   +9 more
openaire   +2 more sources

Fast Ignition by Intense Laser-Accelerated Proton Beams

Physical Review Letters, 2001
The concept of fast ignition with inertial confinement fusion (ICF) is a way to reduce the energy required for ignition and burn and to maximize the gain produced by a single implosion. Based on recent experimental findings at the PETAWATT laser at Lawrence Livermore National Laboratory, an intense proton beam to achieve fast ignition is proposed.
Roth M, Cowan TE, Key MH, Hatchett SP, Brown C, Fountain W, Johnson J, Pennington DM, Snavely RA, Wilks SC, Yasuike K, Ruhl H, PEGORARO, FRANCESCO, Bulanov SV, Campbell EM, Perry MD, Powell H.   +16 more
openaire   +2 more sources

Behavior of Gas Injected Fast Ignition Targets

Plasma and Fusion Research, 2022
Mayuko Koga, Akifumi Iwamoto, Kohei Yamanoi   +2 more
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