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Velocity-space sens...
Velocity-space sensitivity of neutron spectrometry measurements
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Jacobsen, A. S. (författare)
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Salewski, M. (författare)
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- Eriksson, Jacob (författare)
- Uppsala universitet,Tillämpad kärnfysik
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- Ericsson, Göran (författare)
- Uppsala universitet,Tillämpad kärnfysik
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Korsholm, S. B. (författare)
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Leipold, F. (författare)
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Nielsen, S. K. (författare)
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Rasmussen, J. (författare)
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Stejner, M. (författare)
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(creator_code:org_t)
- 2015-04-16
- 2015
- Engelska.
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Ingår i: Nuclear Fusion. - : IOP Publishing. - 0029-5515 .- 1741-4326. ; 55:5
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Neutron emission spectrometry (NES) measures the energies of neutrons produced in fusion reactions. Here we present velocity-space weight functions for NES and neutron yield measurements. Weight functions show the sensitivity as well as the accessible regions in velocity space for a given range of the neutron energy spectrum. Combined with a calculated fast-ion distribution function, they determine the part of the distribution function producing detectable neutrons in a given neutron energy range. Furthermore, we construct a forward model based on weight functions capable of rapidly calculating neutron energy spectra. This forward model can be inverted and could thereby be used to directly measure the fast-ion phase-space distribution functions, possibly in combination with other fast-ion diagnostics. The presented methods and results can be applied to neutron energy spectra measured by any kind of neutron spectrometer and to any neutron yield measurement.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- neutron emission spectrometry
- velocity-space sensitivity
- fast ions
- energetic particles
- plasma diagnostics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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