Investigation of neutron emissions from D(d,n)3^{3}He and T(d,n)4^{4} He reactions in a 10 TW picosecond laser facility SOKOL-P

Experimental results on fast neutron generation in D(d,n)$^{3}$He and T(d,n)$^{4}$He reactions in the SOKOL-P laser facility [1] are presented. Solid targets were irradiated by 1.054 ${\rm \mu}$m, s- or p-polarized laser pulses of energy 5-8 J on target and duration 0.85-2 ps. The peak laser intensity was 0.5-2$\cdot$10$^{18}$ W/cm$^{2}$. Flat deuterated plastic (CD$_{2})_{\rm n}$ targets and Ti D$_{\rm \alpha }$T$_{\rm \beta}$ targets were used in experiments. Some experiments were carried out with additional targets placed in front of and behind the laser target. The used (TOF) time-of-flight technique helped identify neutrons from D(d,n)$^{3}$He and T(d,n)$^{4}$He reactions. Yields up to 10$^{6 }$ DD-neutrons and 10$^{7}$ DT-neutrons were measured. Interaction of the fast ion beam with the target can explain the observed yield