Isotope effects on intrinsic rotation in hydrogen, deuterium and tritium plasmas

JET Contributors

doi:10.1088/1741-4326/acbb8c

Isotope effects on intrinsic rotation in hydrogen, deuterium and tritium plasmas

JET Contributors

Astrophysical Sciences

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

The isotope effect on intrinsic rotation was studied at the Joint European Torus (JET) tokamak. With the unique capability of JET to operate with tritium (T), for the first time, experiments in hydrogen (H), deuterium (D) and T in Ohmic plasmas were compared. Two rotation reversals per isotope type are observed in plasma density scans spanning the linear and the saturated Ohmic confinement regimes. A clear isotope mass dependence is observed at the higher densities. The magnitude of the core rotation was found to depend on isotope mass, with stronger co-current rotation observed in H. Change on intrinsic rotation characteristics coexist with a stronger thermal energy confinement in T.

Original language	English (US)
Article number	044002
Journal	Nuclear Fusion
Volume	63
Issue number	4
DOIs	https://doi.org/10.1088/1741-4326/acbb8c
State	Published - Apr 2023

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Condensed Matter Physics

Keywords

Ohmic confinement
intrinsic rotation
isotope mass
tritium plasmas

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10.1088/1741-4326/acbb8c

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title = "Isotope effects on intrinsic rotation in hydrogen, deuterium and tritium plasmas",

abstract = "The isotope effect on intrinsic rotation was studied at the Joint European Torus (JET) tokamak. With the unique capability of JET to operate with tritium (T), for the first time, experiments in hydrogen (H), deuterium (D) and T in Ohmic plasmas were compared. Two rotation reversals per isotope type are observed in plasma density scans spanning the linear and the saturated Ohmic confinement regimes. A clear isotope mass dependence is observed at the higher densities. The magnitude of the core rotation was found to depend on isotope mass, with stronger co-current rotation observed in H. Change on intrinsic rotation characteristics coexist with a stronger thermal energy confinement in T.",

keywords = "Ohmic confinement, intrinsic rotation, isotope mass, tritium plasmas",

author = "{JET Contributors} and M. Nave and E. Delabie and J. Ferreira and J. Garcia and D. King and M. Lennholm and B. Lomanowski and F. Parra and P. Fernandez and J. Bernardo and M. Baruzzo and M. Barnes and F. Casson and J. Hillesheim and A. Hubber and E. Joffrin and A. Kappatou and C. Maggi and A. Mauriya and L. Meneses and M. Romanelli and F. Salzedas",

note = "Publisher Copyright: {\textcopyright} EURATOM 2023.",

year = "2023",

month = apr,

doi = "10.1088/1741-4326/acbb8c",

language = "English (US)",

volume = "63",

journal = "Nuclear Fusion",

issn = "0029-5515",

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TY - JOUR

T1 - Isotope effects on intrinsic rotation in hydrogen, deuterium and tritium plasmas

AU - JET Contributors

AU - Nave, M.

AU - Delabie, E.

AU - Ferreira, J.

AU - Garcia, J.

AU - King, D.

AU - Lennholm, M.

AU - Lomanowski, B.

AU - Parra, F.

AU - Fernandez, P.

AU - Bernardo, J.

AU - Baruzzo, M.

AU - Barnes, M.

AU - Casson, F.

AU - Hillesheim, J.

AU - Hubber, A.

AU - Joffrin, E.

AU - Kappatou, A.

AU - Maggi, C.

AU - Mauriya, A.

AU - Meneses, L.

AU - Romanelli, M.

AU - Salzedas, F.

PY - 2023/4

Y1 - 2023/4

N2 - The isotope effect on intrinsic rotation was studied at the Joint European Torus (JET) tokamak. With the unique capability of JET to operate with tritium (T), for the first time, experiments in hydrogen (H), deuterium (D) and T in Ohmic plasmas were compared. Two rotation reversals per isotope type are observed in plasma density scans spanning the linear and the saturated Ohmic confinement regimes. A clear isotope mass dependence is observed at the higher densities. The magnitude of the core rotation was found to depend on isotope mass, with stronger co-current rotation observed in H. Change on intrinsic rotation characteristics coexist with a stronger thermal energy confinement in T.

AB - The isotope effect on intrinsic rotation was studied at the Joint European Torus (JET) tokamak. With the unique capability of JET to operate with tritium (T), for the first time, experiments in hydrogen (H), deuterium (D) and T in Ohmic plasmas were compared. Two rotation reversals per isotope type are observed in plasma density scans spanning the linear and the saturated Ohmic confinement regimes. A clear isotope mass dependence is observed at the higher densities. The magnitude of the core rotation was found to depend on isotope mass, with stronger co-current rotation observed in H. Change on intrinsic rotation characteristics coexist with a stronger thermal energy confinement in T.

KW - Ohmic confinement

KW - intrinsic rotation

KW - isotope mass

KW - tritium plasmas

UR - http://www.scopus.com/inward/record.url?scp=85149808547&partnerID=8YFLogxK

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U2 - 10.1088/1741-4326/acbb8c

DO - 10.1088/1741-4326/acbb8c

M3 - Article

AN - SCOPUS:85149808547

SN - 0029-5515

VL - 63

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 4

M1 - 044002

ER -

Isotope effects on intrinsic rotation in hydrogen, deuterium and tritium plasmas

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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