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First demonstration of neutron resonance absorption imaging using a high-speed video camera in J-PARC

Kai, Tetsuya  ; Segawa, Mariko  ; Oi, Motoki ; Hashimoto, Eiko; Shinohara, Takenao  ; Harada, Masahide  ; Maekawa, Fujio ; Oikawa, Kenichi  ; Sakai, Takuro; Matsubayashi, Masahito ; Kureta, Masatoshi 

The neutron resonance absorption imaging technique with a high-speed video camera was successfully demonstrated at the beam line NOBORU, J-PARC. We obtained a set of energy dependent images having enhanced contrast of sample foils around the resonance absorption energies of cobalt (132 eV), cadmium (28 eV), tantalum (4.3 and 10 eV), gold (4.9 eV) and indium (1.5 eV). The capability of this technique is discussed taking into account an absolute peak value and width of a resonance cross section, pulse width of neutron and quantity of sample material. The minimum quantities to perform the neutron absorption imaging with this technique are shown for most of elements.

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