Low energy nuclear reaction measurements using monolithic silicon telescope

$^8$Li($\alpha$,n)$^{11}$B is recognized as an important reaction for passing through the valley of A=8 in nucleosynthesis. While, there are some difficulties of measuring the most interesting energy region of data below 1 MeV due to the background particles consists of elastically scattered $^8$Li ions, and $\alpha$ particles as well as the decay products of $^8$Li. A new experimental apporach for exploring these low-energy nuclear reactions using a monolithic silicon telescope have been performed at the CNS-CRIB spectrometer. Our preliminary results will be presented.