Neutron Spectroscopy is the primary source of experimental data in all the developments of neutron physics as well as contemporary research in nuclear physics by neutron methods. Also, Neutron detection techniques play an important role in application of the accelerator driven subcritical reactors (ADS) for nuclear waste transmutation and spallation neutron sources. Neutron Spectroscopy is the primary source of experimental data in all the developments of neutron physics as well as contemporary research in nuclear physics by neutron methods. Also, Neutron detection techniques play an important role in application of the accelerator driven subcritical reactors (ADS) for nuclear waste transmutation and spallation neutron sources.