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Title: Fast ignition of a compressed inertial confinement fusion hemispherical capsule by two proton beams

Abstract

A hemispherical conically guided indirectly driven inertial confinement fusion capsule has been considered. The fast ignition of the precompressed capsule driven by one or two laser-accelerated proton beams has been numerically investigated. The energy distribution of the protons is Gaussian with a mean energy of 12 MeV and a full width at half maximum of 1 MeV. A new scheme that uses two laser-accelerated proton beams is proposed. It is found that the energy deposition of 1 kJ provided by a first proton beam generates a low-density cylindrical channel and launches a forward shock. A second proton beam, delayed by a few tens of ps and driving the energy of 6 kJ, crosses the low-density channel and heats the dense shocked region where the ignition of the deuterium-tritium nuclear fuel is achieved. For the considered capsule, this new two-beam configuration reduces the ignition energy threshold to 7 kJ.

Authors:
 [1]
  1. Edificio San Roque calle Beni, 4B, Sucre (Bolivia)
Publication Date:
OSTI Identifier:
20860449
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 13; Journal Issue: 12; Other Information: DOI: 10.1063/1.2400592; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BEAM-PLASMA SYSTEMS; CAPSULES; CYLINDRICAL CONFIGURATION; D-T OPERATION; DEUTERIUM; ENERGY SPECTRA; GAUSS FUNCTION; ICF DEVICES; INERTIAL CONFINEMENT; LASERS; MEV RANGE; PROTON BEAMS; PROTONS; SHOCK WAVES; THERMONUCLEAR IGNITION; TRITIUM

Citation Formats

Temporal, Mauro. Fast ignition of a compressed inertial confinement fusion hemispherical capsule by two proton beams. United States: N. p., 2006. Web. doi:10.1063/1.2400592.
Temporal, Mauro. Fast ignition of a compressed inertial confinement fusion hemispherical capsule by two proton beams. United States. doi:10.1063/1.2400592.
Temporal, Mauro. Fri . "Fast ignition of a compressed inertial confinement fusion hemispherical capsule by two proton beams". United States. doi:10.1063/1.2400592.
@article{osti_20860449,
title = {Fast ignition of a compressed inertial confinement fusion hemispherical capsule by two proton beams},
author = {Temporal, Mauro},
abstractNote = {A hemispherical conically guided indirectly driven inertial confinement fusion capsule has been considered. The fast ignition of the precompressed capsule driven by one or two laser-accelerated proton beams has been numerically investigated. The energy distribution of the protons is Gaussian with a mean energy of 12 MeV and a full width at half maximum of 1 MeV. A new scheme that uses two laser-accelerated proton beams is proposed. It is found that the energy deposition of 1 kJ provided by a first proton beam generates a low-density cylindrical channel and launches a forward shock. A second proton beam, delayed by a few tens of ps and driving the energy of 6 kJ, crosses the low-density channel and heats the dense shocked region where the ignition of the deuterium-tritium nuclear fuel is achieved. For the considered capsule, this new two-beam configuration reduces the ignition energy threshold to 7 kJ.},
doi = {10.1063/1.2400592},
journal = {Physics of Plasmas},
number = 12,
volume = 13,
place = {United States},
year = {Fri Dec 15 00:00:00 EST 2006},
month = {Fri Dec 15 00:00:00 EST 2006}
}