A miniature thermal neutron source using high power lasers

0543677 - FZÚ 2022 RIV US eng J - Článek v odborném periodiku
Mirfayzi, S.R. - Ahmed, H. - Doria, D. - Alejo, A. - Ansell, S. - Clarke, R.J. - Gonzalez-Izquierdo, B. - Hadjisolomou, Prokopis - Heathcote, R. - Hodge, T. - Martin, P. - Raspino, D. - Schooneveld, E. - McKenna, P. - Rhodes, N. J. - Neely, D. - Borghesi, M. - Kar, S.
A miniature thermal neutron source using high power lasers.
Applied Physics Letters. Roč. 116, č. 17 (2020), č. článku 174102. ISSN 0003-6951. E-ISSN 1077-3118
Institucionální podpora: RVO:68378271
Klíčová slova: laser-driven neutrons * thermal neutrons * Monte-Carlo simulations
Obor OECD: Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Impakt faktor: 3.791, rok: 2020
Způsob publikování: Omezený přístup
https://doi.org/10.1063/5.0003170

The continuous improvement of high power laser technologies is recasting the prospects of small-scale neutron sources to enable scientific communities and industries performing experiments that are currently offered at extensive accelerator-driven facilities. This paper reports moderation of laser-driven fast neutrons to thermal energies using a compact, modular, moderator assembly. A significant thermal (similar to 25 meV) flux of similar to 10(6) n/sr/pulse was measured from water and plastic moderators in a proof-of-principle experiment employing a relatively moderate power laser delivering 200 J on the target in 10 ps. Using Monte Carlo N-Particle eXtended simulations, the experimental results are reproduced and discussed.
Trvalý link: http://hdl.handle.net/11104/0320857