Neutron-induced background has been studied in various components of the TIN.TIN detector, which is under development for the search of Neutrinoless Double Beta Decay in $\rm^{ 124}Sn$. Fast neutron flux $\sim10^{ 6}~n~cm^{ -2}s^{ -1}$ covering a broad energy range ($ \sim0.1$ to $ \sim18$~MeV) was generated using $^{ 9}Be(p,n)^{ 9}B$ reaction. In addition, reactions with quasi-monoenergetic neutrons were also studied using $^{ 7}Li(p,n)^{ 7}Be$ reaction. Among the different cryogenic support structures studied, Teflon is found to be preferable compared to Torlon as there is no high energy gamma background ($E_\gamma >$ 1 MeV). Contribution of neutron-induced reactions in $\rm ^{ nat, 124} $Sn from other Sn isotopes (A = 112 -- 122) in the energy region of interest, namely, around the $Q_{ \beta\beta}$ of $\rm^{ 124}Sn$ ($E \sim$ 2.293 MeV), is also investigated.
Categories: physics.ins-det nucl-ex