LHD EB-NPA #200072.1

To study fast ion confinement and transport mechanisms both in quiescent plasmas and in the presence of magneto-hydrodynamic (MHD) activity, an electric field parallel to the magnetic field type neutral particle analyzer (E||B-NPA) was installed using Micro-Channel Plates (MCPs) in the Large Helical Device (LHD). The E||B-NPA is an established diagnostic used to measure the energy distribution of charge exchange neutral particles escaping from plasmas corresponding to hydrogen, deuterium, and tritium, respectively.