Boron-proton nuclear-fusion enhancement induced in boron-doped silicon targets by low-contrast Pulsed Laser

A. Picciotto*, D. Margarone, A. Velyhan, P. Bellutti, J. Krasa, A. Szydlowsky, G. Bertuccio, Y. Shi, A. Mangione, J. Prokupek, A. Malinowska, E. Krousky, J. Ullschmied, L. Laska, M. Kucharik, G. Korn

*Corresponding author for this work

Research output: Contribution to journalArticle

66 Citations (Scopus)

Abstract

We show that a spatially well-defined layer of boron dopants in a hydrogen-enriched silicon target allows the production of a high yield of alpha particles of around 109 per steradian using a nanosecond, low-contrast laser pulse with a nominal intensity of approximately 3 × 1016 Wcm-2. This result can be ascribed to the nature of the long laser-pulse interaction with the target and with the expanding plasma, as well as to the optimal target geometry and composition. The possibility of an impact on future applications such as nuclear fusion without production of neutron-induced radioactivity and compact ion accelerators is anticipated.

Original languageEnglish
Article number031030
Number of pages8
JournalPhysical review x
Volume4
Issue number3
DOIs
Publication statusPublished - 19 Aug 2014
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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