Journal
JOURNAL OF NUCLEAR MATERIALS
Volume 329, Issue -, Pages 218-222Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jnucmat.2004.04.026
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in order to improve the nuclear data required in the safety design of the International Fusion Materials Irradiation Facility (IFMIF), we have measured the neutron emission spectra and the activation cross-sections of the IFMIF accelerator structural elements, C and A1, for 40 MeV deuterons using the Tohoku University AVF cyclotron. Neutron spectra from thick C and. A1 targets were measured with the time-of-flight method at ten laboratory angles between 0-and 110-deg. using a beam swinger system and a well collimated neutron flight channel. The data were obtained over almost entire energy range of secondary neutrons using a two-detector method. Activation cross-sections were measured by detecting the gamma-rays from C and A1 targets with a high-pure Ge detector. The stacked target technique was used to obtain the data from 40 MeV down to the threshold energy. (C) 2004 Elsevier B.V. All rights reserved.
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