Diagnostic weight functions in constants-of-motion phase-space

The fast-ion phase-space distribution function in axisymmetric tokamak plasmas is completely described by the three constants of motion: energy, magnetic moment and toroidal canonical angular momentum. In this work, the observable regions of constants-of-motion phase-space, given a diagnostic setup, are identified and explained using projected velocities of the fast ions along the diagnostic lines-of-sight as a proxy for several fast-ion diagnostics, such as fast-ion D alpha spectroscopy, collective Thomson scattering, neutron emission spectroscopy and gamma-ray spectroscopy. The observable region in constants-of-motion space is given by a position condition and a velocity condition, and the diagnostic sensitivity is given by a gyro-orbit and a drift-orbit weighting. As a practical example, 3D orbit weight functions quantifying the diagnostic sensitivity to each point in phase-space are computed and investigated for the future COMPASS-Upgrade and MAST-Upgrade tokamaks.

Moseev, D.Max Planck Inst Plasma Phys, Wendelsteinstr 1, D-17491 Greifswald, Germany. (författare)
Jaulmes, F.Czech Acad Sci, Inst Plasma Phys, Inst Plasma Phys, Slovankou 1782-3, Prague 18200, Czech Republic. (författare)
Bogar, K.Czech Acad Sci, Inst Plasma Phys, Inst Plasma Phys, Slovankou 1782-3, Prague 18200, Czech Republic. (författare)
Eriksson, Jacob,Dr,1985-Uppsala universitet,Tillämpad kärnfysik(Swepub:uu)jacer352 (författare)
Järleblad, H.Tech Univ Denmark, Dept Phys, DK-2800 Lyngby, Denmark. (författare)
Nocente, M.Univ Milano Bicocca, Dept Phys, I-20126 Milan, Italy. (författare)
Prechel, G.Univ Calif Irvine, Dept Phys & Astron, Irvine, CA USA. (författare)
Reman, B. C. G.Tech Univ Denmark, Dept Phys, DK-2800 Lyngby, Denmark. (författare)
Schmidt, B. S.Tech Univ Denmark, Dept Phys, DK-2800 Lyngby, Denmark. (författare)
Snicker, A.VTT Tech Res Ctr Finland, Espoo, Finland. (författare)
Stagner, L.Gen Atom, POB 85608, San Diego, CA 92186 USA. (författare)
Valentini, A.Tech Univ Denmark, Dept Phys, DK-2800 Lyngby, Denmark. (författare)
Salewski, M.Tech Univ Denmark, Dept Phys, DK-2800 Lyngby, Denmark. (författare)
Tech Univ Denmark, Dept Phys, DK-2800 Lyngby, Denmark.Max Planck Inst Plasma Phys, Wendelsteinstr 1, D-17491 Greifswald, Germany. (creator_code:org_t)

Ingår i:Nuclear Fusion: Institute of Physics Publishing (IOPP)64:30029-55151741-4326

Av författaren/redakt...: Rud, M.; Moseev, D.; Jaulmes, F.; Bogar, K.; Eriksson, Jacob, ...; Järleblad, H.; visa fler...; Nocente, M.; Prechel, G.; Reman, B. C. G.; Schmidt, B. S.; Snicker, A.; Stagner, L.; Valentini, A.; Salewski, M.; visa färre...

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