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Yttrium as a New Threshold Detector for Fast Neutron Energy Spectrum (>10 MeV) Measurement
M. Bielewicz,S. Kilim,E. Strugalska-Gola,M. Szuta,A. Wojciechowski 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.23
Results of two experiments with Yttrium 89 probe are presented. The experiment assembly (U/Pb model) was irradiated with Dubna NUCLOTRON for 1.6 and 2.52 GeV deuteron beam and we obtain Neutron Energy Spectrum inside whole 3D model by using threshold energy reaction. Normally in experiment like this one uses neutron activation detectors made from gold (^(197)Au), cobalt (^(59)Co), bismuth (^(209)Bi) etc. Detector, yttrium (^(89)Y) was proposed. Yttrium detectors give quite good results for neutron energy spectrum from 10 MeV to about 50 MeV.