On the determination of fast neutron spectra with activation techniques; its application in a fusion reactor blanket model

Kuijpers, L. J. M.; Herzing, R.; Cloth, P.; Filges, D.; Hecker, R.

doi:10.1016/0029-554x(77)90111-2

Cited by 23 publications

(3 citation statements)

References 9 publications

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“…However, the technique of neutron-spectrum unfolding using activation foils requires optimisation for measuring fusion neutron spectra. Previous investigations have only selected foils on an ad hoc basis (see [5,6,9] for example). In this paper, a programmatic approach to foil selection is shown to increase the precision provided by neutron activation systems.…”

Section: Introductionmentioning

confidence: 99%

Optimising Foil Selection for Neutron Activation Systems

et al. 2022

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Neutron spectrum unfolding using activation foils is currently the primary technique planned for measuring the neutron energy spectrum at the first wall of power-generating fusion reactors. Room for improvement in the effectiveness of current foil selection was identified, and a program produced to select foils procedurally in order to maximise the accuracy of the unfolding procedure. Using Kullback–Leibler Divergence to quantify the accuracy, the spectrum unfolded by the procedurally selected set of foils is found to be more accurate than the spectrum unfolded by a set of foils used in the literature.

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Section: Introductionmentioning

confidence: 99%

Optimising Foil Selection for Neutron Activation Systems

et al. 2022

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“…Since photonuclear reactions occur only above the energy (E) range of γ radiation (E ≥ 10 MeV), metal foils are only activated by neutrons in a mixed n+γ field. Radio-activation methods are used extensively for measuring neutron fluence (27). A set of foils with different thresholds can be used to determine the spectrum of neutron flux density.…”

Section: Introductionmentioning

confidence: 99%

Neutron dose estimation in a zero power nuclear reactor

Triviño

Vedelago

Cantargi

et al. 2016

Radiation Physics and Chemistry

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“…Activation detection using various metal foils has been frequently adopted to determine neutron fluence rate and spectra (Kuijpers et al, 1977;Nunomiya et al, 2001;Papastefanou, 2004). Indium is one of the most common activation materials for measuring thermal neutrons because of its high cross section for the neutron capture reaction 115 In (n th , g) 116m In.…”

Section: Introductionmentioning

confidence: 99%