Investigation of nonlinear effects in Doppler reflectometry using full-wave synthetic diagnostics

O. L. Krutkin; A. B. Altukhov; A. D. Gurchenko; E. Z. Gusakov; S. Heuraux; M. A. Irzak; L. A. Esipov; T. P. Kiviniemi; C. Lechte; S. Leerink; P. Niskala; G. Zadvitskiy

doi:10.1088/2058-6272/ab5c28

Investigation of nonlinear effects in Doppler reflectometry using full-wave synthetic diagnostics

O. L. Krutkin, A. B. Altukhov, A. D. Gurchenko, E. Z. Gusakov, S. Heuraux, M. A. Irzak, L. A. Esipov, T. P. Kiviniemi, C. Lechte, S. Leerink, P. Niskala, G. Zadvitskiy

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

1 Sitaatiot (Scopus)

Abstrakti

In this work, Doppler reflectometry (DR) and radial correlation DR (RCDR) nonlinear scattering effects are studied using full-wave modeling with a set of representative FT-2 tokamak turbulence as inputs. Narrowing of the RCDR correlation function and widening of the DR poloidal wavenumber spectrum are demonstrated. An effect on the dependence of the DR signal frequency shift on the probing wavenumber is found, namely, this dependence 'linearizing' in the nonlinear scattering regime. Nonlinear effects are shown to be weaker for O-mode probing than for X-mode probing, while a faster transition to nonlinear regime is demonstrated for RCDR compared to DR in both probing scenarios.

Alkuperäiskieli	Englanti
Artikkeli	064001
Julkaisu	Plasma Science and Technology
Vuosikerta	22
Numero	6
DOI - pysyväislinkit	https://doi.org/10.1088/2058-6272/ab5c28
Tila	Julkaistu - 5 maalisk. 2020
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Pääsy asiakirjaan

10.1088/2058-6272/ab5c28

Muut tiedostot ja linkit

Link to publication in Scopus

-: Turbulentti kuljetus fuusioplasmassa
Kiviniemi, T. (Vastuullinen tutkija)
01/02/2020 → 31/12/2022
Projekti: Academy of Finland: Other research funding
-: Syklokineettinen reunaturbulenssi tokamak-plasmassa
Kiviniemi, T. (Vastuullinen tutkija), Leerink, S. (Projektin jäsen), Chone, L. (Projektin jäsen), Iorio, R. (Projektin jäsen) & Albert Devasagayam, F. (Projektin jäsen)
01/09/2018 → 31/12/2022
Projekti: Academy of Finland: Other research funding

Siteeraa tätä

Krutkin, O. L., Altukhov, A. B., Gurchenko, A. D., Gusakov, E. Z., Heuraux, S., Irzak, M. A., Esipov, L. A., Kiviniemi, T. P., Lechte, C., Leerink, S., Niskala, P., & Zadvitskiy, G. (2020). Investigation of nonlinear effects in Doppler reflectometry using full-wave synthetic diagnostics. Plasma Science and Technology, 22(6), Artikkeli 064001. https://doi.org/10.1088/2058-6272/ab5c28

@article{738376adf5ee4af0bc6fcf9d00cd635f,

title = "Investigation of nonlinear effects in Doppler reflectometry using full-wave synthetic diagnostics",

abstract = "In this work, Doppler reflectometry (DR) and radial correlation DR (RCDR) nonlinear scattering effects are studied using full-wave modeling with a set of representative FT-2 tokamak turbulence as inputs. Narrowing of the RCDR correlation function and widening of the DR poloidal wavenumber spectrum are demonstrated. An effect on the dependence of the DR signal frequency shift on the probing wavenumber is found, namely, this dependence 'linearizing' in the nonlinear scattering regime. Nonlinear effects are shown to be weaker for O-mode probing than for X-mode probing, while a faster transition to nonlinear regime is demonstrated for RCDR compared to DR in both probing scenarios.",

keywords = "full-wave modeling, numerical modeling, reflectometry",

author = "Krutkin, {O. L.} and Altukhov, {A. B.} and Gurchenko, {A. D.} and Gusakov, {E. Z.} and S. Heuraux and Irzak, {M. A.} and Esipov, {L. A.} and Kiviniemi, {T. P.} and C. Lechte and S. Leerink and P. Niskala and G. Zadvitskiy",

note = "| openaire: EC/H2020/633053/EU//EUROfusion ",

year = "2020",

month = mar,

day = "5",

doi = "10.1088/2058-6272/ab5c28",

language = "English",

volume = "22",

journal = "Plasma Science and Technology",

issn = "1009-0630",

publisher = "Institute of Physics Publishing",

number = "6",

}

TY - JOUR

T1 - Investigation of nonlinear effects in Doppler reflectometry using full-wave synthetic diagnostics

AU - Krutkin, O. L.

AU - Altukhov, A. B.

AU - Gurchenko, A. D.

AU - Gusakov, E. Z.

AU - Heuraux, S.

AU - Irzak, M. A.

AU - Esipov, L. A.

AU - Kiviniemi, T. P.

AU - Lechte, C.

AU - Leerink, S.

AU - Niskala, P.

AU - Zadvitskiy, G.

N1 - | openaire: EC/H2020/633053/EU//EUROfusion

PY - 2020/3/5

Y1 - 2020/3/5

N2 - In this work, Doppler reflectometry (DR) and radial correlation DR (RCDR) nonlinear scattering effects are studied using full-wave modeling with a set of representative FT-2 tokamak turbulence as inputs. Narrowing of the RCDR correlation function and widening of the DR poloidal wavenumber spectrum are demonstrated. An effect on the dependence of the DR signal frequency shift on the probing wavenumber is found, namely, this dependence 'linearizing' in the nonlinear scattering regime. Nonlinear effects are shown to be weaker for O-mode probing than for X-mode probing, while a faster transition to nonlinear regime is demonstrated for RCDR compared to DR in both probing scenarios.

AB - In this work, Doppler reflectometry (DR) and radial correlation DR (RCDR) nonlinear scattering effects are studied using full-wave modeling with a set of representative FT-2 tokamak turbulence as inputs. Narrowing of the RCDR correlation function and widening of the DR poloidal wavenumber spectrum are demonstrated. An effect on the dependence of the DR signal frequency shift on the probing wavenumber is found, namely, this dependence 'linearizing' in the nonlinear scattering regime. Nonlinear effects are shown to be weaker for O-mode probing than for X-mode probing, while a faster transition to nonlinear regime is demonstrated for RCDR compared to DR in both probing scenarios.

KW - full-wave modeling

KW - numerical modeling

KW - reflectometry

UR - http://www.scopus.com/inward/record.url?scp=85082302002&partnerID=8YFLogxK

U2 - 10.1088/2058-6272/ab5c28

DO - 10.1088/2058-6272/ab5c28

M3 - Article

AN - SCOPUS:85082302002

SN - 1009-0630

VL - 22

JO - Plasma Science and Technology

JF - Plasma Science and Technology

IS - 6

M1 - 064001

ER -

Investigation of nonlinear effects in Doppler reflectometry using full-wave synthetic diagnostics

Abstrakti

Pääsy asiakirjaan

Muut tiedostot ja linkit

Sormenjälki

Projektit

-: Turbulentti kuljetus fuusioplasmassa

-: Syklokineettinen reunaturbulenssi tokamak-plasmassa

Siteeraa tätä