title: Energy-selective neutron radiography and tomography at FRM.
abstract: At the reactor FRM at Technical University of Munich energy-selective neutron radiography and tomography experiments were performed. For an energy separation of the neutrons from the primary beam a mechanical velocity selector was used. The radiography images show a different contrast of the investigated elements for neutron energies below and above their Bragg-cutoff energy. A comparison between the standard and energy-selective neutron tomography is presented. In spite of a reduction of the neutron intensity due to the velocity selector technique a realistic experimental time in order of some hours for the tomography experiment was achieved.
authors.affiliation: Physik Department, Fakultät für Physik E21, Technische Universität München, Garching D-85747, Germany. kardjilov@hmi.de
authors.forename: Nikolay
authors.initials: N
authors.lastname: Kardjilov
authors.forename: Burkhard
authors.initials: B
authors.lastname: Schillinger
authors.forename: Erich
authors.initials: E
authors.lastname: Steichele