Simultaneous Investigation of the Nuclear Reactions $${}^{11}$$B$$\boldsymbol{(p,3\alpha)}$$ and $${}^{11}$$B$$\boldsymbol{(p,n)^{11}}$$C as a New Tool for Determining the Absolute Yield of Alpha Particles in Picosecond Plasmas

Belyaev, V. S.; Матафонов, А. П.; Крайнов, В. П.; Kedrov, A. Yu.; Zagreev, B.; Rusetsky, A. S.; Борисенко, Н. Г.; Громов, А. И.; Lobanov, A.; Lisitsa, V. S.

doi:10.1134/s1063778820050063

Cited by 10 publications

(5 citation statements)

References 11 publications

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“…To date, the presented simulations of pB fusion describe rather well the significant part of the experimental data obtained [20,21,23,35,52]. The synergy of step-by-step numerical modeling and the further development of real experiments will allow us to continue to search for optimal ways to increase the efficiency of aneutronic pB synthesis and increase the yield of α-particles, which are extremely necessary for practice.…”

Section: Discussionmentioning

confidence: 64%

“…In the case of the aneutronic proton-boron (pB) reaction (p + 11 B → α + 8 Be* → 3α + 8.7 MeV), at each step in time for each proton moving at the velocity V p in the target area, according to a given cross-section σ(E p ) [23], the probability of the reaction act P = A σ(E p )V p n∆t was calculated and compared with a random number ξ ≤ 1. If the probability P turned out to be less than ξ, then the transition to the next proton was carried out; otherwise, a procedure was launched, as a result of which the proton was excluded from the calculation, and alpha particles with energies of 0.9 MeV and 3.9 MeV [24] were launched from its location point.…”

Section: Mathematical Model Of the Simulation Of Nuclear Reactions In...mentioning

confidence: 99%

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Fully Electromagnetic Code KARAT Applied to the Problem of Aneutronic Proton–Boron Fusion

Andreev,

Kurilenkov,

Oginov

2023

Mathematics

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In this paper, the full electromagnetic code KARAT is presented in detail, the scope of which is a computational experiment in applied problems of engineering electrodynamics. The basis of the physical model used is Maxwell’s equations together with boundary conditions for fields, as well as material equations linking currents with field strengths. The Particle in Cell (PiC) method for the kinetic description of plasma is implemented in the code. A unique feature of the code KARAT is the possibility of the self-consistent modeling of inelastic processes, in particular, nuclear reactions, at each time step in the process of electrodynamic calculation. The aneutronic proton–boron nuclear reaction, accompanied by the release of almost only α-particles, is extremely in demand in medicine and, perhaps, in the future, will form the basis for obtaining “clean” nuclear energy. The results of a numerical simulation within the framework of the code KARAT of the key physical processes leading to the proton–boron fusion are presented and discussed both for laser-driven plasma and for a plasma oscillatory confinement scheme.

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Section: Discussionmentioning

confidence: 64%

Section: Mathematical Model Of the Simulation Of Nuclear Reactions In...mentioning

confidence: 99%

Fully Electromagnetic Code KARAT Applied to the Problem of Aneutronic Proton–Boron Fusion

Andreev,

Kurilenkov,

Oginov

2023

Mathematics

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“…Many diagnostic strategies have been developed, based on the use of solid-state detectors in time-of-flight (TOF) configuration, CR-39 track detectors, and Thomson-like spectrometers coupled with CR-39 [17,18]. Other groups have proposed and are currently investigating the possibility of using gamma and/or neutron detection from other reaction channels [17,19] to retrieve information on the reaction and exceed the problem of alphas/protons discrimination.…”

Section: Jinst 19 C04046mentioning

confidence: 99%

Proton spectroscopy for ¹¹B(p,α)2α fusion reaction with RCF films: calibration and unfolding procedure

Guarrera,

Petringa,

Milluzzo

et al. 2024

J. Inst.

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The reaction occurring between protons and 11B isotope (p+11B → 3α+8.7 MeV) has recently attracted attention as a possible candidate to overcome the generation of high-energy neutrons via the more studied Deuterium-Tritium fusion reaction. Since the early 2000s, several experiments have been carried out to investigate the viability of triggering this aneutronic reaction in laser-target interaction schemes. During these experiments, the total number of escaping α particles is measured to infer fusion reaction efficiency. However, the accurate detection of α particles in such experiments poses a real challenge. In this scenario, RadioChromic Films (RCFs) arranged in a stack configuration can be used for the fluence and energy spectra reconstruction of generated protons, being this mandatory information in both “pitcher-catcher” and “in plasma” p-11B irradiation schemes. Nevertheless, RCF response exhibits a dependence on Linear Energy Transfer (LET), which leads to an underestimation of the response in high-LET conditions. This can result in dosimetric errors if not properly taken into account. In this work, an analytical procedure able to reconstruct the incident energy spectra in an RCF stack was developed and validated thanks to a calibration procedure that was established for high and low proton energy (4–60 MeV) beams to properly reconstruct the incident spectra in the “pitcher-catcher” irradiation scheme.

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“…It should be noted the great progress made in recent years in the study of laser-driven pB fusion and increasing α particles yields in the experiments related [13][14][15][16][17][18][19]. In addition to laser-driven fusion schemes, the implementation of pB fusion in one very compact device without the external infuence of lasers or proton beams is also of fundamental and applied interest.…”

Section: On Dd and Pb Nuclear Synthesis In Miniaturementioning

confidence: 99%

“…Te laser initiation of the pB reaction has been demonstrated at the beginning of this century [12]. In recent years, great progress was achieved in laser-driven pB fusion experiments and the growth of α particles yield (sf [13][14][15][16][17][18][19] and ref. therein).…”

Section: Introductionmentioning

confidence: 99%

Oscillating Plasmas for Proton- Boron Fusion in Miniature Vacuum Discharge

et al. 2023

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Earlier, the experiments on the aneutronic proton-boron (pB) fusion in a miniature nanosecond vacuum discharge (NVD) with oscillatory plasma confinement and correspondent α particles yield were presented. In this work, we consider some specific features of oscillatory confinement as a relatively new type of plasma confinement for fusion. Particle-in-cell (PiC) simulations of pB fusion processes have shown that the plasma in NVD, and especially on the discharge axis, is in a state close to a quasineutral one, which is rather different from the conditions in the well-known scheme of periodically oscillating plasma spheres (POPSs) suggested earlier for fusion. Apparently, small-scale oscillations in NVD are a mechanism of resonant ion heating, unlike coherent compressions in the original POPS scheme. Nevertheless, the favorable scaling of the fusion power in NVD turns out to be close to the POPS fusion but differs significantly both in the compression ratio and in the values of the parameter of quasineutrality. In addition, unlike the POPS scheme, PiC simulation reveals that the distribution functions of protons and boron ions in NVD are non-Maxwellian. Therefore, we have an aneutronic pB synthesis in a nonequilibrium plasma remaining “nonignited” on the discharge axis.

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Simultaneous Investigation of the Nuclear Reactions $${}^{11}$$B$$\boldsymbol{(p,3\alpha)}$$ and $${}^{11}$$B$$\boldsymbol{(p,n)^{11}}$$C as a New Tool for Determining the Absolute Yield of Alpha Particles in Picosecond Plasmas

Cited by 10 publications

References 11 publications

Fully Electromagnetic Code KARAT Applied to the Problem of Aneutronic Proton–Boron Fusion

Fully Electromagnetic Code KARAT Applied to the Problem of Aneutronic Proton–Boron Fusion

Proton spectroscopy for ¹¹B(p,α)2α fusion reaction with RCF films: calibration and unfolding procedure

Oscillating Plasmas for Proton- Boron Fusion in Miniature Vacuum Discharge

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Simultaneous Investigation of the Nuclear Reactions $${}^{11}$$B$$\boldsymbol{(p,3\alpha)}$$ and $${}^{11}$$B$$\boldsymbol{(p,n)^{11}}$$C as a New Tool for Determining the Absolute Yield of Alpha Particles in Picosecond Plasmas

Cited by 10 publications

References 11 publications

Fully Electromagnetic Code KARAT Applied to the Problem of Aneutronic Proton–Boron Fusion

Fully Electromagnetic Code KARAT Applied to the Problem of Aneutronic Proton–Boron Fusion

Proton spectroscopy for 11B(p,α)2α fusion reaction with RCF films: calibration and unfolding procedure

Oscillating Plasmas for Proton- Boron Fusion in Miniature Vacuum Discharge

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Proton spectroscopy for ¹¹B(p,α)2α fusion reaction with RCF films: calibration and unfolding procedure