Ion Heating and Thermonuclear Neutron Production from High-Intensity Subpicosecond Laser Pulses Interacting with Underdense Plasmas

S. Fritzler 1 Z. Najmudin 2 Victor Malka 1 K. Krushelnick 2 C. Marle 2 B. Walton 2 M. S. Wei 2 R.J. Clarke 3 A.E. Dangor 2
1 LULI - Laboratoire pour l'utilisation des lasers intenses
2 Blackett Laboratory
3 CLF - Central Laser Facility
Abstract : Thermonuclear fusion neutrons produced by D(d,n)3He reactions have been measured from the interaction of a high-intensity laser with underdense deuterium plasmas. For an input laser energy of 62 J, more than (1.0±0.2)×10^6 neutrons with a mean kinetic energy of (2.5±0.2)  MeV were detected. These neutrons were observed to have an isotropic angular emission profile. By comparing these measurements with those using a secondary solid CD2 target it was determined that neutrons are produced from direct ion heating during this interaction.
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Submitted on : Friday, September 17, 2010 - 5:55:42 PM
Last modification on : Thursday, March 21, 2019 - 2:25:30 PM

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S. Fritzler, Z. Najmudin, Victor Malka, K. Krushelnick, C. Marle, et al.. Ion Heating and Thermonuclear Neutron Production from High-Intensity Subpicosecond Laser Pulses Interacting with Underdense Plasmas. Physical Review Letters, American Physical Society, 2002, 89 (16), pp.165004. ⟨10.1103/PhysRevLett.89.165004⟩. ⟨hal-00519015⟩

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