Abstract
A brief review on studies aimed at initiating a neutronless nuclear reaction between protons and boron nuclei is presented. The least energy-cost of a currently known approach to ignition of pB reaction is proposed using a petawatt laser for producing a magnetized plasma of laser-accelerated ions and electrons as well as using a terawatt laser for inertial confinement of such a plasma.
Highlights
Promising aneutronic nuclear power based on the reaction of a proton with boron, which gives three α particles with a total energy of about ε ≈ 8.6 MeV, is currently under active discussion
The initiation of the pB reaction in the plasma is experimentally studied with the use of laser methods of creation of a hightemperature plasma and a proton beam [1,2,3,4]
We discuss the least energy-cost of currently known approach to ignition of pB reaction, which has been proposed in [9]. It is based on the inertial confinement of a magnetized plasma of laser-accelerated charged particles
Summary
Promising aneutronic nuclear power based on the reaction of a proton with boron, which gives three α particles with a total energy of about ε ≈ 8.6 MeV, is currently under active discussion. Several approaches were proposed to solve this problem They are (i) the use of an external magnetic field for the quasi stationary interaction between the colliding proton beam and boron nuclei [5], (ii) initiation of the reaction in a degenerate plasma with a superhigh density of about 105 g/cm3 [6], (iii) action of laser-accelerated proton beams on a preliminarily compressed boron-containing target [7], and (iv) the collision between ponderomotively accelerated thin layers of matter [8]. We discuss the least energy-cost of currently known approach to ignition of pB reaction, which has been proposed in [9] It is based on the inertial confinement of a magnetized plasma of laser-accelerated charged particles. This requirement determines the relations between the parameters of the plasma-producing and compressive pulses
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