Measurement of the Am241(n,2n) reaction cross section using the activation method

G. Perdikakis, C. T. Papadopoulos, R. Vlastou, A. Lagoyannis, A. Spyrou, M. Kokkoris, S. Galanopoulos, N. Patronis, D. Karamanis, Ch Zarkadas, G. Kalyva, S. Kossionides

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In the context of the n_TOF Collaboration, the measurement of the cross section of the reaction Am241(n,2n)Am240, has been performed, for the first time at neutron energies from 8.8 to 11.4 MeV, by the activation method, relative to the Al27(n,a)Na24 reaction reference cross section. The monoenergetic neutron beam was produced at the 5.5 MV TANDEM accelerator of NCSR "Demokritos, " by means of the H2(d,n)He3 reaction, using a deuterium filled gas cell. The radioactive target consisted of a 37 GBq Am241 source enclosed in a Pb container. After the end of the irradiation, the activity induced by the neutron beam at the target and reference, was measured off-line by a 56% relative efficiency, HPGe detector.

Original languageEnglish
Article number067601
JournalPhysical Review C - Nuclear Physics
Issue number6
StatePublished - 2006


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