Measurement of $beta$-decay end point energy with Planar HPGe detector

The end point energies of nuclear $beta$ decays have been measured with a segmented planar Ge LEPS detector using both singles and coincidence techniques. The $beta - gamma$ coincidence has been performed with a segmented planar Ge LEPS and a single 10$%$ HPGe detector. The $gamma$ ray and $beta$ particle responses of the Segmented planer Ge LEPS detector were studied using monte carlo simulation code GEANT3. The experimentally obtained $beta$ spectrum was in reasonably good agreement with the simulation results. The experimental end point energies are determined with substantial accuracy for some of the known $beta$ decays in $^{106}$Rh, $^{210}$Bi and $^{90}$Y. The end point energies corresponding to three weak branches in $^{106}$Rh $rightarrow$ $^{106}$Pd decay has been measured for the first time.