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Diagnostic of fast-...
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Salewski, M.Tech Univ Denmark, Lyngby, Denmark.;Tech Univ Denmark, Dept Phys, Bldg 309, DK-2800 Lyngby, Denmark.
(author)
Diagnostic of fast-ion energy spectra and densities in magnetized plasmas
- Article/chapterEnglish2019
Publisher, publication year, extent ...
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Institute of Physics Publishing (IOPP),2019
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:kth-270846
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-270846URI
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https://doi.org/10.1088/1748-0221/14/05/C05019DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-387606URI
Supplementary language notes
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Language:English
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Summary in:English
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Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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QC 20200317
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The measurement of the energy spectra and densities of alpha-particles and other fast ions are part of the ITER measurement requirements, highlighting the importance of energy-resolved energetic-particle measurements for the mission of ITER. However, it has been found in recent years that the velocity-space interrogation regions of the foreseen energetic-particle diagnostics do not allow these measurements directly. We will demonstrate this for gamma-ray spectroscopy (GRS), collective Thomson scattering (CTS), neutron emission spectroscopy and fast-ion D-alpha spectroscopy by invoking energy and momentum conservation in each case, highlighting analogies and differences between the different diagnostic velocity-space sensitivities. Nevertheless, energy spectra and densities can be inferred by velocity-space tomography which we demonstrate using measurements at JET and ASDEX Upgrade. The measured energy spectra agree well with corresponding simulations. At ITER, alpha-particle energy spectra and densities can be inferred for energies larger than 1.7 MeV by velocity-space tomography based on GRS and CTS. Further, assuming isotropy of the alpha-particles in velocity space, their energy spectra and densities can be inferred by 1D inversion of spectral single-detector measurements down to about 300 keV by CTS. The alpha-particle density can also be found by fitting a model to the CTS measurements assuming the alpha-particle distribution to be an isotropic slowing-down distribution.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Bergsåker, HenrikKTH,Fusionsplasmafysik(Swepub:kth)u1ebt1m5
(author)
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Bykov, IgorKTH,Fusionsplasmafysik(Swepub:kth)u10mpxru
(author)
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Frassinetti, LorenzoKTH,Fusionsplasmafysik,Tech Univ Denmark, Lyngby, Denmark(Swepub:kth)u1sfgalb
(author)
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Garcia Carrasco, Alvaro,1989-KTH,Fusionsplasmafysik(Swepub:kth)u19t9s7i
(author)
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Hellsten, TorbjörnKTH,Fusionsplasmafysik(Swepub:kth)u16w7v9f
(author)
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Johnson, ThomasKTH,Fusionsplasmafysik(Swepub:kth)u1xypjyh
(author)
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Menmuir, SheenaKTH,Fusionsplasmafysik(Swepub:kth)u12gjaah
(author)
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Petersson, PerKTH,Fusionsplasmafysik(Swepub:kth)u1mnanst
(author)
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Rachlew, ElisabethKTH,Partikel- och astropartikelfysik(Swepub:kth)u12i3o9i
(author)
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Ratynskaia, SvetlanaKTH,Rymd- och plasmafysik(Swepub:kth)u1p4172h
(author)
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Rubel, MarekKTH,Fusionsplasmafysik(Swepub:kth)u1vrej8y
(author)
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Stefániková, EsteraKTH,Fusionsplasmafysik(Swepub:kth)u1lkwyqq
(author)
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Ström, PetterKTH,Fusionsplasmafysik(Swepub:kth)u1uqpnn8
(author)
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Tholerus, EmmiKTH,Fusionsplasmafysik(Swepub:kth)u15bspw9
(author)
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Tolias, PanagiotisKTH,Rymd- och plasmafysik(Swepub:kth)u1p3186s
(author)
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Olivares, Pablo VallejosKTH,Fusionsplasmafysik(Swepub:kth)u1mmxwkt
(author)
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Weckmann, ArminKTH,Fusionsplasmafysik(Swepub:kth)u1z0ow6d
(author)
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Zhou, YushanKTH,Fusionsplasmafysik(Swepub:kth)u1ryyfau
(author)
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Zychor, I.Natl Ctr Nucl Res, PL-05400 Otwock, Poland.
(author)
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Nocente, M.Univ Milano Bicocca, Dept Phys, Milan, Italy;CNR, Ist Fis Plasma, Milan, Italy
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Madsen, B.Tech Univ Denmark, Lyngby, Denmark
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Abramovic, I.Max Planck Inst Plasma Phys, Greifswald, Germany
(author)
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Gorini, G.Univ Milano Bicocca, Dept Phys, Milan, Italy;CNR, Ist Fis Plasma, Milan, Italy,Culham Sci Ctr, CCFE, Abingdon, Oxon, England
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Jacobsen, A. S.Culham Sci Ctr, CCFE, Abingdon, Oxon, England
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Korsholm, S. B.Tech Univ Denmark, Lyngby, Denmark
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Moseev, D.Max Planck Inst Plasma Phys, Greifswald, Germany
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Nielsen, S. K.Tech Univ Denmark, Lyngby, Denmark
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Rasmussen, J.Tech Univ Denmark, Lyngby, Denmark
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Tardocchi, M.CNR, Ist Fis Plasma, Milan, Italy
(author)
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Geiger, B.Max Planck Inst Plasma Phys, Garching, Germany
(author)
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Eriksson, Jacob,Dr,1985-Uppsala universitet,Tillämpad kärnfysik(Swepub:uu)jacer352
(author)
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Tech Univ Denmark, Lyngby, Denmark.;Tech Univ Denmark, Dept Phys, Bldg 309, DK-2800 Lyngby, Denmark.Fusionsplasmafysik
(creator_code:org_t)
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In:Journal of Instrumentation: Institute of Physics Publishing (IOPP)141748-02211748-0221
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Salewski, M.
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Bergsåker, Henri ...
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Bykov, Igor
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Frassinetti, Lor ...
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Garcia Carrasco, ...
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Hellsten, Torbjö ...
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Johnson, Thomas
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Menmuir, Sheena
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Petersson, Per
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Rachlew, Elisabe ...
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Ratynskaia, Svet ...
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Rubel, Marek
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Stefániková, Est ...
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Ström, Petter
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Tholerus, Emmi
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Tolias, Panagiot ...
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Olivares, Pablo ...
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Weckmann, Armin
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Zhou, Yushan
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Zychor, I.
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Nocente, M.
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Madsen, B.
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Abramovic, I.
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Gorini, G.
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Jacobsen, A. S.
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Korsholm, S. B.
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Moseev, D.
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Nielsen, S. K.
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Rasmussen, J.
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Tardocchi, M.
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Geiger, B.
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Eriksson, Jacob, ...
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Royal Institute of Technology
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Uppsala University