H-mode threshold and confinement in helium and deuterium in ASDEX Upgrade

F. Ryter; T. Pütterich; M. Reich; A. Scarabosio; E. Wolfrum; R. Fischer; M. Gemisic Adamov; N. Hicks; B. Kurzan; C. Maggi; R. Neu; V. Rohde; G. Tardini

doi:10.1088/0029-5515/49/6/062003

H-mode threshold and confinement in helium and deuterium in ASDEX Upgrade

F. Ryter
, T. Pütterich
, M. Reich
, A. Scarabosio
, E. Wolfrum
, R. Fischer
, M. Gemisic Adamov
, N. Hicks
, B. Kurzan
, C. Maggi
, R. Neu
, V. Rohde
, G. Tardini

Max Planck Institute for Plasma Physics

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

118 Scopus citations

Abstract

In 2008, experiments have been carried out in ASDEX Upgrade to compare H-mode power threshold and confinement time in helium and deuterium. A scan in magnetic field and a wide density variation indicate that the threshold power in the two gases is very similar. The density dependence of the threshold exhibits a clear minimum. Confinement in helium is about 30% lower than in deuterium, mainly due to the reduction in the ion density caused by Z = 2 in helium.

Original language	English
Article number	062003
Journal	Nuclear Fusion
Volume	49
Issue number	6
DOIs	https://doi.org/10.1088/0029-5515/49/6/062003
State	Published - 2009
Externally published	Yes

UN SDGs

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SDG 7 Affordable and Clean Energy

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10.1088/0029-5515/49/6/062003

Cite this

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title = "H-mode threshold and confinement in helium and deuterium in ASDEX Upgrade",

abstract = "In 2008, experiments have been carried out in ASDEX Upgrade to compare H-mode power threshold and confinement time in helium and deuterium. A scan in magnetic field and a wide density variation indicate that the threshold power in the two gases is very similar. The density dependence of the threshold exhibits a clear minimum. Confinement in helium is about 30\% lower than in deuterium, mainly due to the reduction in the ion density caused by Z = 2 in helium.",

author = "F. Ryter and T. P{\"u}tterich and M. Reich and A. Scarabosio and E. Wolfrum and R. Fischer and \{Gemisic Adamov\}, M. and N. Hicks and B. Kurzan and C. Maggi and R. Neu and V. Rohde and G. Tardini",

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doi = "10.1088/0029-5515/49/6/062003",

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TY - JOUR

T1 - H-mode threshold and confinement in helium and deuterium in ASDEX Upgrade

AU - Ryter, F.

AU - Pütterich, T.

AU - Reich, M.

AU - Scarabosio, A.

AU - Wolfrum, E.

AU - Fischer, R.

AU - Gemisic Adamov, M.

AU - Hicks, N.

AU - Kurzan, B.

AU - Maggi, C.

AU - Neu, R.

AU - Rohde, V.

AU - Tardini, G.

PY - 2009

Y1 - 2009

N2 - In 2008, experiments have been carried out in ASDEX Upgrade to compare H-mode power threshold and confinement time in helium and deuterium. A scan in magnetic field and a wide density variation indicate that the threshold power in the two gases is very similar. The density dependence of the threshold exhibits a clear minimum. Confinement in helium is about 30% lower than in deuterium, mainly due to the reduction in the ion density caused by Z = 2 in helium.

AB - In 2008, experiments have been carried out in ASDEX Upgrade to compare H-mode power threshold and confinement time in helium and deuterium. A scan in magnetic field and a wide density variation indicate that the threshold power in the two gases is very similar. The density dependence of the threshold exhibits a clear minimum. Confinement in helium is about 30% lower than in deuterium, mainly due to the reduction in the ion density caused by Z = 2 in helium.

UR - https://www.scopus.com/pages/publications/67649389526

U2 - 10.1088/0029-5515/49/6/062003

DO - 10.1088/0029-5515/49/6/062003

M3 - Article

AN - SCOPUS:67649389526

SN - 0029-5515

VL - 49

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 6

M1 - 062003

ER -

H-mode threshold and confinement in helium and deuterium in ASDEX Upgrade

Abstract

UN SDGs

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