A facility for fast-neutron irradiations at Jyväskylä and its use for nuclide cross-section measurements in fission

Lhersonneau, G.; Małkiewicz, T.; Jones, P.; Karvonen, P.; Ketelhut, S.; Bajeat, O.; Fadil, M.; Gaudu, S.; Saint‐Laurent, M. G.

doi:10.1016/j.nima.2012.09.051

Cited by 4 publications

(3 citation statements)

References 11 publications

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“…We apologize for the unlucky truncation in Ref. [18] of the expression for the mean-absorption length of γ-rays in the Ge crystal as 1/µ, µ being the linear absorption coefficient [23]. 1 The point-source efficiency was obtained from measurements with 137 Cs, 152 Eu and 60 Co standard sources.…”

Section: Discussionmentioning

confidence: 99%

“…The first measurements were carried out in the frame of the original version of the SPES project at Legnaro, Italy, [13], based on proton beams and a carbon target enriched in 13 C as the neutron production target [14,15]. Later on, the neutron yields of carbon and heavywater targets with 40 and 55 MeV deuteron beams have been tested [16,17] and isotope yields in neutron-induced fission of natural uranium have been measured [18] in the context of SPIRAL2. A review of these works is given in [19].…”

Section: Introductionmentioning

confidence: 99%

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Neutron yield of thick 12C and 13C targets with 20 and 30 MeV deuterons

et al. 2016

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The neutron yield of thick targets of carbon, natural and enriched in 13 C, bombarded by deuterons of 20 and 30 MeV has been measured by the activation method. The gain with respect to a 12 C target is the same as with protons beams. The yield ratio is about 1.2 only and hardly can justify the use of a 13 C target with deuteron beams. The data, apart from being of interest for the design of facilities where secondary neutron beams are used, provide a test case for calculations where both beam and target have a weakly-bound neutron. The MCNPx code version 2.6.0, despite failing to reproduce some details of the experimental distributions, describes their global properties fairly well, especially the relative yields of the 12 C and 13 C targets.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Neutron yield of thick 12C and 13C targets with 20 and 30 MeV deuterons

et al. 2016

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“…The foils were 2.5*2.5 cm 2 with a thickness of 0.1 cm in order to minimize the attenuation and the diffusion of neutrons. After irradiation of the nat Cu target, the measurement of the resulting activities in the activation foils was used to reconstruct the incident neutron spectra [3,4,5] using an unfolding method.…”

Section: Methodsmentioning

confidence: 99%

Experimental approach to measure thick target neutron yields induced by heavy ions for shielding

et al. 2017

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Abstract. Double differential (angular and energy) neutron distributions were measured using an activation foil technique. Reactions were induced by impinging two low-energy heavy-ion beams accelerated with the GANIL CSS1 cyclotron: ( 36 S (12 MeV/u) and 208 Pb (6.25 MeV/u)) onto thick nat Cu targets. Results have been compared to Monte-Carlo calculations from two codes (PHITS and FLUKA) for the purpose of benchmarking radiation protection and shielding requirements. This comparison suggests a disagreement between calculations and experiment, particularly for high-energy neutrons.

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Production of a 15C radioactive ion beam based on 18O(n,$\alpha$)

Małkiewicz

Lhersonneau²,

Fadil

et al. 2019

Eur. Phys. J. A

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In the context of the SPIRAL2 radioactive beam facility the production rate of the neutron-rich 15 C nucleus by 18 O(n, α) has been investigated. In a water target of 20 cm 3 , enriched in 18 O and placed behind the neutron converter, a rate of a few 10 10 nuclei per second can be reached with 1 mA of 40 MeV deuterons. A 18 O(n, α) cross-section based on the activation method is proposed. It is intermediate between the highest and lowest evaluations available to date.

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A facility for fast-neutron irradiations at Jyväskylä and its use for nuclide cross-section measurements in fission

Cited by 4 publications

References 11 publications

Neutron yield of thick 12C and 13C targets with 20 and 30 MeV deuterons

Neutron yield of thick 12C and 13C targets with 20 and 30 MeV deuterons

Experimental approach to measure thick target neutron yields induced by heavy ions for shielding

Production of a 15C radioactive ion beam based on 18O(n,$\alpha$)

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