Measurement of Preheat due to Fast Electrons in Laser Implosions of Cryogenic Deuterium Targets
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54 LLE Review, Volume 10
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Measurement of Preheat due to Fast Electrons in Laser Implosions
LLE Review, Volume 82 63 Introduction Fast electrons due to the two-plasmon-decay (2PD) instability have been measured in previous laser-interaction experiments.1,2 The main impact of these electrons in laser-fusion experiments is the possible preheat that can reduce the implosion’s effectiveness. The preheat caused by these electrons is studied by measuring the Kα line emission from highZ laye...
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In recent years, many different plans have been considered to use the nuclear energy gained from inertial confinement fusion (ICF) as attempts to obtain high energy efficiencies. In conventional ICF methods, a small amount (about mg) of the deuterium–tritium compound is confined in a small spherical chamber of a few millimeters in radius and compressed by laser or heavy ion beams with powers in...
متن کاملEnergy Gain of Magnetized Cylindrical D-T Targets in Fast Ignition Fusion
In recent years, many different plans have been considered to use the nuclear energy gained from inertial confinement fusion (ICF) as attempts to obtain high energy efficiencies. In conventional ICF methods, a small amount (about mg) of the deuterium–tritium compound is confined in a small spherical chamber of a few millimeters in radius and compressed by laser or heavy ion beams with powers in...
متن کاملFirst Measurements of Deuterium-Tritium and Deuterium-Deuterium Fusion Reaction Yields in Ignition-Scalable Direct-Drive Implosions.
The deuterium-tritium (D-T) and deuterium-deuterium neutron yield ratio in cryogenic inertial confinement fusion (ICF) experiments is used to examine multifluid effects, traditionally not included in ICF modeling. This ratio has been measured for ignition-scalable direct-drive cryogenic DT implosions at the Omega Laser Facility [T. R. Boehly et al., Opt. Commun. 133, 495 (1997)OPCOB80030-401810...
متن کاملDemonstration of the highest deuterium-tritium areal density using multiple-picket cryogenic designs on OMEGA.
The performance of triple-picket deuterium-tritium cryogenic target designs on the OMEGA Laser System [T. R. Boehly, Opt. Commun. 133, 495 (1997)] is reported. These designs facilitate control of shock heating in low-adiabat inertial confinement fusion targets. Areal densities up to 300 mg/cm2 (the highest ever measured in cryogenic deuterium-tritium implosions) are inferred in the experiments ...
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تاریخ انتشار 2005