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Persistent URL http://purl.org/net/epubs/work/32945391
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Record Id 32945391
Title High flux, beamed neutron sources employing deuteron-rich ion beams from D2O-ice layered targets
Abstract A forwardly-peaked bright neutron source was produced using a laser-driven, deuteron-rich ion beam in a pitcher-catcher scenario. A proton-free ion source was produced via target normal sheath acceleration from Au foils having a thin layer of D 2 O ice at the rear side, irradiated by sub-petawatt laser pulses (∼200 J, ∼750 fs) at peak intensity ##IMG## [http://ej.iop.org/images/0741-3335/59/6/064004/ppcfaa684aieqn1.gif] $\sim \,2\times 10^20\,\rmW\,\mathrmcm^-2$ . The neutrons were preferentially produced in a beam of ∼70° FWHM cone along the ion beam forward direction, with maximum energy up to ∼40 MeV and a peak flux along the axis ##IMG## [http://ej.iop.org/images/0741-3335/59/6/064004/ppcfaa684aieqn2.gif] $\sim 2\times 10^9\,\rmn\,\mathrmsr^-1$ for neutron energy above 2.5 MeV. The experimental data is in good agreement with the simulations carried out for the d(d,n) 3 He reaction using the deuteron beam produced by the ice-layered target.
Organisation CLF , CLF-HPL , STFC , CLF-VULCAN
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Language English (EN)
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Journal Article Plasma Phys Contr F 59, no. 6 (2017): 064004. Is in proceedings of: 43rd European Physical Society Conference on Plasma Physics, Leuven, Belgium, 4-8 Jul 2016. doi:10.1088/1361-6587/aa684a 2017