Measurement of thick target neutron yields generated by accelerated heavy ions

Abstract : In accelerator facilities, due to their high penetration through matter, neutrons emitted from the interaction of high intensity primary beams with thick targets represent a risk of radiation hazards that needs to be well characterized. The objective of the ongoing TTNY (Thick Target Neutron Yields) experimental program at GANIL is to measure neutron yields generated by the interaction of heavy ions (12C to 208Pb, from 4 MeV/u to 95 MeV/u) with thick targets (natCu, natNb, natC). Double differential (angular and energy) secondary neutron spectra are obtained using two techniques: the activation of thin foils and neutron ToF measurements. Measurement results are compared to Monte-Carlo transport codes (PHITS and FLUKA) in order to benchmark the physics models implemented in the codes to take into account the wide range of nuclear reactions involved. The data collected during the experimental program will also allow improving these physics models. In addition, data obtained with the niobium target (12C (95MeV/u), natNb) are of high interest for the safety studies associated with the upgrade of the SPIRAL1 facility at GANIL since this beam and target combination is the one considered to evaluate the upper limit of neutron radiation hazards associated with the operation of the facility.
Type de document :
Communication dans un congrès
EPS Divisional Conference: Towards EURISOL Distributed Facility, Oct 2016, Leuven, Belgium. 2016, 〈https://iks32.fys.kuleuven.be/indico/event/37/〉
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http://hal.in2p3.fr/in2p3-01569656
Contributeur : Michel Lion <>
Soumis le : jeudi 27 juillet 2017 - 11:50:01
Dernière modification le : jeudi 11 janvier 2018 - 06:28:19

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  • HAL Id : in2p3-01569656, version 1

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N.D. Trinh, M. Fadil, M. Lewitowicz, F. Delaunay, M. Pârlog, et al.. Measurement of thick target neutron yields generated by accelerated heavy ions. EPS Divisional Conference: Towards EURISOL Distributed Facility, Oct 2016, Leuven, Belgium. 2016, 〈https://iks32.fys.kuleuven.be/indico/event/37/〉. 〈in2p3-01569656〉

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