High-current stream of energetic α particles from laser-driven proton-boron fusion

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F20%3A00541112" target="_blank" >RIV/61389021:_____/20:00541112 - isvavai.cz</a>

Výsledek na webu

<a href="https://pureadmin.qub.ac.uk/ws/files/201391993/PhysRevE.101.013204.pdf" target="_blank" >https://pureadmin.qub.ac.uk/ws/files/201391993/PhysRevE.101.013204.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevE.101.013204" target="_blank" >10.1103/PhysRevE.101.013204</a>

Jazyk výsledku

angličtina

Název v původním jazyce

High-current stream of energetic α particles from laser-driven proton-boron fusion

Popis výsledku v původním jazyce

The nuclear reaction known as proton-boron fusion has been triggered by a subnanosecond laser system focused onto a thick boron nitride target at modest laser intensity (∼1016W/cm2), resulting in a record yield of generated α particles. The estimated value of α particles emitted per laser pulse is around 1011, thus orders of magnitude higher than any other experimental result previously reported. The accelerated α-particle stream shows unique features in terms of kinetic energy (up to 10 MeV), pulse duration (∼10 ns), and peak current (∼2 A) at 1 m from the source, promising potential applications of such neutronless nuclear fusion reactions. We have used a beam-driven fusion scheme to explain the total number of α particles generated in the nuclear reaction. In this model, protons accelerated inside the plasma, moving forward into the bulk of the target, can interact with B11 atoms, thus efficiently triggering fusion reactions. An overview of literature results obtained with different laser parameters, experimental setups, and target compositions is reported and discussed.

Název v anglickém jazyce

High-current stream of energetic α particles from laser-driven proton-boron fusion

Popis výsledku anglicky

The nuclear reaction known as proton-boron fusion has been triggered by a subnanosecond laser system focused onto a thick boron nitride target at modest laser intensity (∼1016W/cm2), resulting in a record yield of generated α particles. The estimated value of α particles emitted per laser pulse is around 1011, thus orders of magnitude higher than any other experimental result previously reported. The accelerated α-particle stream shows unique features in terms of kinetic energy (up to 10 MeV), pulse duration (∼10 ns), and peak current (∼2 A) at 1 m from the source, promising potential applications of such neutronless nuclear fusion reactions. We have used a beam-driven fusion scheme to explain the total number of α particles generated in the nuclear reaction. In this model, protons accelerated inside the plasma, moving forward into the bulk of the target, can interact with B11 atoms, thus efficiently triggering fusion reactions. An overview of literature results obtained with different laser parameters, experimental setups, and target compositions is reported and discussed.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review E

ISSN

2470-0045

e-ISSN

2470-0053

Svazek periodika

101

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

013204

Kód UT WoS článku

000508455100009

EID výsledku v databázi Scopus

2-s2.0-85078871523