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)
• Page Start: 056710
• Publication Date: 2014-06-01
• Subjects: High power lasers -- Periodicals; 621.366
• DOI: 10.1017/hpl.2014.25
• Languages: English
• ISSNs: 2095-4719

Abstract

<abstract> <title>Abstract</title> <p>The laser system PALS, as a driver of a broad-beam ion source, delivered deuterons which generated neutrons with energies higher than 14Â MeV through the <inline-formula><alternatives><inline-graphic xlink:href="ark:/27927/pgj449hc29" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /><tex-math><![CDATA[$\def \xmlpi #1{}\def \mathsfbi #1{\boldsymbol {\mathsf {#1}}}\let \le =\leqslant \let \leq =\leqslant \let \ge =\geqslant \let \geq =\geqslant \def \Pr {\mathit {Pr}}\def \Fr {\mathit {Fr}}\def \Rey {\mathit {Re}}{}^{7}\mathrm{Li(d, n)}{}^{8}\mathrm{Be}$]]></tex-math></alternatives></inline-formula> reaction. Deuterons with sub-MeV energy were accelerated from the front surface of a massive <inline-formula><alternatives><inline-graphic xlink:href="ark:/27927/pgj449hm8s" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /><tex-math><![CDATA[$\mathrm{CD}_{2}$]]></tex-math></alternatives></inline-formula> target in the backward direction with respect to the laser beam vector. Simultaneously, neutrons were emitted from the primary <inline-formula><alternatives><inline-graphic xlink:href="ark:/27927/pgj449gz9p" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /><tex-math><![CDATA[$\mathrm{CD}_{2}$]]></tex-math></alternatives></inline-formula> target and a secondary LiF catcher. The total maximum measured neutron yield from <inline-formula><alternatives><inline-graphic xlink:href="ark:/27927/pgj449hb6w" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /><tex-math><![CDATA[${}^{2}\mathrm{D(d, n)}{}^{3}\mathrm{He}$]]></tex-math></alternatives></inline-formula>, <inline-formula><alternatives><inline-graphic xlink:href="ark:/27927/pgj449jb49" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /><tex-math><![CDATA[${}^{7}\mathrm{Li(d, n)}{}^{8}\mathrm{Be}$]]></tex-math></alternatives></inline-formula>, <inline-formula><alternatives><inline-graphic xlink:href="ark:/27927/pgj449f6hq" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /><tex-math><![CDATA[${}^{12}\mathrm{C(d, n)}{}^{13}\mathrm{N}$]]></tex-math></alternatives></inline-formula> reactions was <inline-formula><alternatives><inline-graphic xlink:href="ark:/27927/pgj449hvcq" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /><tex-math><![CDATA[${\sim } 3.5 ({\pm }0.5) \times 10^{8}\ \mathrm{neutrons/shot}$]]></tex-math></alternatives></inline-formula>.</p> </abstract>