High flux, beamed neutron sources employing deuteron-rich ion beams from D 2 O-ice layered targets
Research output: Contribution to journal › Article
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 2 x 10^20 Wcm^-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 2 x 10^9 n/sr for neutron energy above 2.5 MeV. The experimental data is in good agreement with the simulations carried out for the d(d,n)He reaction using the deuteron beam produced by the ice-layered target.
|Number of pages||7|
|Journal||Plasma Physics and Controlled Fusion|
|Journal publication date||24 Apr 2017|
|State||Published - 24 Apr 2017|