Application of Nuclear Data in Fusion Neutronics

Fischer, U.; Batistoni, P.; Forrest, R.A.; Konobeev, A. Yu.; Seidel, K.; Simakov, S.P.; Pereslavtsev, P.

doi:10.1080/00223131.2002.10875298

Cited by 2 publications

(2 citation statements)

References 14 publications

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“…Whereas these experiments are carried out with neutrons of energies E < 15 MeV, in most cases at D-T generators, a challenge arises with the design of the International Fusion Material Irradiation Facility the continuous neutron spectrum of which has the high-energy end at E = 55 MeV, and nuclear data measurements and testing are strongly requested for the energy range 15 MeV < E < 55 MeV [19].…”

Section: Discussionmentioning

confidence: 99%

Fusion Neutronics Experiments

Seidel¹,

Angelone²,

Batistoni³

et al. 2007

Proceedings of International Workshop on Fast Neutron Detectors and Applications — PoS(FNDA2006)

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The nuclear design of fusion devices is based on neutronics calculations. The neutron and photon flux spectra are calculated with 3D neutron-photon transport codes, and the nuclear responses are obtained by convolution with the related nuclear data. These computational tools and data need to be validated through mock-up and benchmark experiments. Typical experiments, carried out in the frame of the European Fusion Technology Programme, are discussed, in particular a bulk shield experiment on a mock-up of the inboard shield of the International Thermonuclear Experimental Reactor (ITER), benchmarks of the transport and of the activation data of tungsten and measurements on a neutronics mock-up of a test blanket module for ITER.

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Section: Discussionmentioning

confidence: 99%

Fusion Neutronics Experiments

Seidel¹,

Angelone²,

Batistoni³

et al. 2007

Proceedings of International Workshop on Fast Neutron Detectors and Applications — PoS(FNDA2006)

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show abstract

“…The discussion above has indicated the large number of materials that are present in these devices. There are several papers [37,38] that present in more detail than is possible here the needs for these devices. The main requirement is for complete evaluated files extending at least up to 60 MeV, completeness meaning that angle-energy coupled emission data, gamma production and covariance data are present.…”

Section: Data Needsmentioning

confidence: 99%

Nuclear data for fusion applications

Forrest

2007

Nd2007

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Abstract. Achieving the economically viable release of energy by the fusion process has proved a major scientific and technological challenge. The nuclear reactions involved in the fusion process are well understood, but the interaction of the neutrons with the materials surrounding the plasma is an area of current research. The neutrons have energies larger than those experienced in fission and this has been a driver to extend the types and amounts of nuclear data. Designs for fusion devices require neutron and photon transport calculations to generate the spectra required to provide the nuclear responses. Such calculations require cross section data for all elements present in the device. ITER is the next step on the road to demonstrating the commercial generation of electricity. The importance of nuclear data for ITER was realized many years ago, which led to the release of FENDL-1 in 1995. This contained both general and special purpose files; an example of the latter is activation. Development of these files focused on completeness -including γ production and covariances; the files generally had an upper energy limit of 20 MeV. The types of data in the fusion relevant libraries are sufficient for all foreseeable fusion devices. However, the transition in fusion research from plasma physics towards technology requires an understanding of the materials damage caused by the intense fluxes of neutrons that will be found in power plants. To gain this knowledge a materials test facility, IFMIF, is required. This is planned to operate in parallel with ITER and will use accelerated beams of deuterons striking a flowing lithium target to generating an intense neutron field. The neutrons will mostly be fusion relevant, but there will be a high-energy tail extending up to ∼55 MeV. These high energy neutrons further extend the amount of nuclear data required and have stimulated much theoretical and experimental work covering the energy range >20 MeV. Examples of recent general purpose evaluations, new activation libraries and benchmarking are described and the challenges for nuclear data for fusion discussed.

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Application of Nuclear Data in Fusion Neutronics

Cited by 2 publications

References 14 publications

Fusion Neutronics Experiments

Fusion Neutronics Experiments

Nuclear data for fusion applications

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