Author/Authors :
Lhersonneau، نويسنده , , G. and Malkiewicz، نويسنده , , T. and Jones، نويسنده , , P. and Karvonen، نويسنده , , P. and Ketelhut، نويسنده , , S. and Bajeat، نويسنده , , O. and Fadil، نويسنده , , M. and Gaudu، نويسنده , , S. and Saint-Laurent، نويسنده , , M.G. and Trzaska، نويسنده , , W.H.، نويسنده ,
Abstract :
An efficient and reliable transport system for fast-neutron irradiations has been built at the Physics Department, Jyväskylä, Finland. It is constructed from commercial bicycle components and is driven by a computer-controlled stepping motor. It can be operated in single or cyclic mode. The neutron irradiated targets are moved within 1.2 s (full stop to full stop) to a well-shielded position 3 m away where they can be removed or directly investigated by γ spectroscopy. The system has been built with the aim to experimentally verify the calculated production rates of neutron-rich nuclei in the SPIRAL2 uranium target. However, the facility can be used for various kinds of fast-neutron irradiations, with a neutron spectrum up to 60 MeV produced by stopping a deuteron beam of several μ A in a thick target. Examples of applications are activation and integral cross-section measurements, evaluation of damages in materials and biological cells.
Keywords :
fission , activation , Thick Target Neutron Yield , Neutron-induced fission
