Visibility estimation for neutron resonance absorption radiography using a pulsed neutron source

Kai, Tetsuya   ; Maekawa, Fujio  ; Oshita, Hidetoshi*; Sato, Hirotaka; Shinohara, Takenao   ; Oi, Motoki ; Harada, Masahide   ; Uno, Shoji*; Otomo, Toshiya*; Kamiyama, Takashi*; Kiyanagi, Yoshiaki*

A neutron imaging instrument is in construction at the pulsed neutron source of J-PARC. Some demonstration experiments in NOBORU/J-PARC have carried. To explore widespread applications of the newly built instruments it is indispensable to indicate the range of coverage of this technique. In the presentation, the authors describe the results of some of demonstration measurements, and then compare all elements with the values obtained by multiplying peak cross section and peak widths of neutron resonances in evaluated nuclear data libraries. This value is expected to be a good measure to exhibit visibility of each element in this technique.