Neutron Generation in Colliding Foils for Impact Fast Ignition

We have proposed a new ignition scheme of Fast Ignition, called ``Impact Fast Ignition\footnote{M. Murakami et al., Nucl. Instrum. Meth. Phys. Res. A \textbf{544}, 67 (2005).} (IFI)'', in which a compressed fuel is ignited by impact collision of a fragment of separately imploded fuel. We have started the experiment that used CD colliding foils as the fundamental experiment of the IFI. We used the target which consists of two CD foils (thickness of 20 $\mu $m) with a 600 $\mu $m separation. We have irradiated one of the CD foils by a drive-laser (the energy of 2 kJ) and accelerated. The accelerated CD foil collides with another foil, and the neutrons were generated by the nuclear fusion reaction on the heated foil. In this experiment, we measured the neutron yield of 10$^{6}$. We will present the experimental details and results.