Conductivity and transport in neon deuterium discharges in the PLT tokamak

E. Meservey; M. Bitter; C. Daughney; D. Eames; P. Efthimion; E. Hinnov; R. Hulse; D. Post; K. Sato; S. Suckewer; S. Von Goeler

doi:10.1088/0029-5515/24/1/001

Conductivity and transport in neon deuterium discharges in the PLT tokamak

E. Meservey, M. Bitter, C. Daughney, D. Eames, P. Efthimion, E. Hinnov, R. Hulse, D. Post, K. Sato, S. Suckewer, S. Von Goeler

Plasma Physics Lab

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

16 Scopus citations

Abstract

Introduction of large amounts of neon into Ohmically heated deuterium discharges in the PLT tokamakl results in higher central electron temperature (T_e(0) ≅ 3 keV) and values of electron energy containment time that are larger than in regular discharges at the same electron density (_Ee = 44 ms at n_e = 2 × 10¹⁹ m^-3). For steady-state discharges with high effective Z (∼ 5-8) the conductance is larger than that predicted by neoclassical theory by as much as a factor of two. Transport rates of hydrogen-like and helium-like ions can be fairly well approximated by assuming a diffusion constant of between 0.4 and 1 m²·s^-1. Within experimental uncertainties the diffusion of hydrogen-like neon is the same for co- and counter-directed high-power neutral beams.

Original language	English (US)
Pages (from-to)	3-12
Number of pages	10
Journal	Nuclear Fusion
Volume	24
Issue number	1
DOIs	https://doi.org/10.1088/0029-5515/24/1/001
State	Published - Jan 1984

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Condensed Matter Physics

Access to Document

10.1088/0029-5515/24/1/001

Cite this

@article{aea3b2e341a549128cd194944e750e6b,

title = "Conductivity and transport in neon deuterium discharges in the PLT tokamak",

abstract = "Introduction of large amounts of neon into Ohmically heated deuterium discharges in the PLT tokamakl results in higher central electron temperature (Te(0) ≅ 3 keV) and values of electron energy containment time that are larger than in regular discharges at the same electron density (Ee = 44 ms at ne = 2 × 1019 m-3). For steady-state discharges with high effective Z (∼ 5-8) the conductance is larger than that predicted by neoclassical theory by as much as a factor of two. Transport rates of hydrogen-like and helium-like ions can be fairly well approximated by assuming a diffusion constant of between 0.4 and 1 m2·s-1. Within experimental uncertainties the diffusion of hydrogen-like neon is the same for co- and counter-directed high-power neutral beams.",

author = "E. Meservey and M. Bitter and C. Daughney and D. Eames and P. Efthimion and E. Hinnov and R. Hulse and D. Post and K. Sato and S. Suckewer and \{Von Goeler\}, S.",

year = "1984",

month = jan,

doi = "10.1088/0029-5515/24/1/001",

language = "English (US)",

volume = "24",

pages = "3--12",

journal = "Nuclear Fusion",

issn = "0029-5515",

publisher = "IOP Publishing Ltd.",

number = "1",

}

TY - JOUR

T1 - Conductivity and transport in neon deuterium discharges in the PLT tokamak

AU - Meservey, E.

AU - Bitter, M.

AU - Daughney, C.

AU - Eames, D.

AU - Efthimion, P.

AU - Hinnov, E.

AU - Hulse, R.

AU - Post, D.

AU - Sato, K.

AU - Suckewer, S.

AU - Von Goeler, S.

PY - 1984/1

Y1 - 1984/1

N2 - Introduction of large amounts of neon into Ohmically heated deuterium discharges in the PLT tokamakl results in higher central electron temperature (Te(0) ≅ 3 keV) and values of electron energy containment time that are larger than in regular discharges at the same electron density (Ee = 44 ms at ne = 2 × 1019 m-3). For steady-state discharges with high effective Z (∼ 5-8) the conductance is larger than that predicted by neoclassical theory by as much as a factor of two. Transport rates of hydrogen-like and helium-like ions can be fairly well approximated by assuming a diffusion constant of between 0.4 and 1 m2·s-1. Within experimental uncertainties the diffusion of hydrogen-like neon is the same for co- and counter-directed high-power neutral beams.

AB - Introduction of large amounts of neon into Ohmically heated deuterium discharges in the PLT tokamakl results in higher central electron temperature (Te(0) ≅ 3 keV) and values of electron energy containment time that are larger than in regular discharges at the same electron density (Ee = 44 ms at ne = 2 × 1019 m-3). For steady-state discharges with high effective Z (∼ 5-8) the conductance is larger than that predicted by neoclassical theory by as much as a factor of two. Transport rates of hydrogen-like and helium-like ions can be fairly well approximated by assuming a diffusion constant of between 0.4 and 1 m2·s-1. Within experimental uncertainties the diffusion of hydrogen-like neon is the same for co- and counter-directed high-power neutral beams.

UR - https://www.scopus.com/pages/publications/0021197610

UR - https://www.scopus.com/inward/citedby.url?scp=0021197610&partnerID=8YFLogxK

U2 - 10.1088/0029-5515/24/1/001

DO - 10.1088/0029-5515/24/1/001

M3 - Article

AN - SCOPUS:0021197610

SN - 0029-5515

VL - 24

SP - 3

EP - 12

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 1

ER -

Conductivity and transport in neon deuterium discharges in the PLT tokamak

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this