Generation of high-energy neutrons with the 300-ps-laser system PALS. (1st June 2014)

• Record Type: Journal Article
• Authors: Krása, J.; Klír, D.; Velyhan, A.; Krouský, E.; Pfeifer, M.; Řezáč, K.; Cikhardt, J.; Turek, K.; Ullschmied, J.; Jungwirth, K.
• Is Part Of: High power laser science and engineering. Volume 2 (2014)
• Publication Date: 2014-06-01
• Subjects: beam–target fusion, -- deuterons, -- laser ion sources, -- lithium, -- neutrons; High power lasers -- Periodicals; 621.366
• DOI: 10.1017/hpl.2014.25
• Languages: English
• ISSNs: 2095-4719

Abstract

Abstract: The laser system PALS, as a driver of a broad-beam ion source, delivered deuterons which generated neutrons with energies higher than 14 MeV through the $\def \xmlpi #1{}\def \mathsfbi #1{\boldsymbol {\mathsf {#1}}}\let \le =\leqslant \let \leq =\leqslant \let \ge =\geqslant \let \geq =\geqslant \def \Pr {\mathit {Pr}}\def \Fr {\mathit {Fr}}\def \Rey {\mathit {Re}}{}^{7}\mathrm{Li(d, n)}{}^{8}\mathrm{Be}$ reaction. Deuterons with sub-MeV energy were accelerated from the front surface of a massive $\mathrm{CD}_{2}$ target in the backward direction with respect to the laser beam vector. Simultaneously, neutrons were emitted from the primary $\mathrm{CD}_{2}$ target and a secondary LiF catcher. The total maximum measured neutron yield from ${}^{2}\mathrm{D(d, n)}{}^{3}\mathrm{He}$, ${}^{7}\mathrm{Li(d, n)}{}^{8}\mathrm{Be}$, ${}^{12}\mathrm{C(d, n)}{}^{13}\mathrm{N}$ reactions was ${\sim } 3.5 ({\pm }0.5) \times 10^{8}\ \mathrm{neutrons/shot}$ .