Ammonia borane-based targets for new developments in laser-driven proton boron fusion

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2FCZ______%3A_____%2F24%3AN0000046" target="_blank" >RIV/CZ______:_____/24:N0000046 - isvavai.cz</a>
Result on the web
<a href="https://www.webofscience.com/wos/woscc/full-record/WOS:001285360800001" target="_blank" >https://www.webofscience.com/wos/woscc/full-record/WOS:001285360800001</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.apsusc.2024.160797" target="_blank" >10.1016/j.apsusc.2024.160797</a>

Result language
angličtina
Original language name
Ammonia borane-based targets for new developments in laser-driven proton boron fusion
Original language description
Nuclear fusion reactions involving protons and boron-11 nuclei are sparking increasing interest thanks to advancements in high-intensity, short-pulse laser technology. This type of reaction holds potential for a wide array of applications, from controlled nuclear fusion to radiobiology and cancer therapy. In line with this motivation, solid ammonia borane samples were developed as target material for proton-boron (pB) nuclear fusion. Following synthesis and shaping, these samples were tested for the first time in a laser-plasma pB fusion experiment. An investigation campaign focusing on surface chemical/physical analysis was carried out to characterize such samples in terms of composition of B and H, precursors of the pB fusion nuclear reaction, thus having a key impact on the yield of the generated nuclear products, i.e., alpha particles. A follow-up experiment used an 8 J, 800 fs laser pulse with an intensity of 2 x 10(19) W cm(-2) to irradiate the targets, generating similar to 10(8) alpha particles per steradian. The alpha particle energy range (2-6 MeV) and normalized yield per laser energy of up to (6 x 10(7) J/sr) are comparable with the best previous alpha particle yields found in literature. These results pave the way for a yet unexplored category of pB fusion targets.
Czech name
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Czech description
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Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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