First results with 3-strap ICRF antennas in ASDEX Upgrade

V. Bobkov; F. Braun; R. Dux; A. Herrmann; H. Faugel; H. Fünfgelder; A. Kallenbach; R. Neu; J. M. Noterdaeme; R. Ochoukov; Th Pütterich; A. Tuccilo; O. Tudisco; Y. Wang; Q. Yang

doi:10.1088/0029-5515/56/8/084001

First results with 3-strap ICRF antennas in ASDEX Upgrade

V. Bobkov, F. Braun, R. Dux, A. Herrmann, H. Faugel, H. Fünfgelder, A. Kallenbach, R. Neu, J. M. Noterdaeme, R. Ochoukov, Th Pütterich, A. Tuccilo, O. Tudisco, Y. Wang, Q. Yang

Associate Professorship of Plasma-Material-Wechselwirkung

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

60 Scopus citations

Abstract

The 3-strap antennas in ASDEX Upgrade allow ICRF operation with low tungsten (W) content in the confined plasma with W-coated antenna limiters. With the 3-strap antenna configuration, the local W impurity source at the antenna is drastically reduced and the core W concentration is similar to that of the boron coated 2-strap antenna at a given ICRF power. Operation of the 3-strap antennas with the power ratio between the central and the outer straps of 1.5 : 1 and 2 : 1 is adopted to minimize the ICRF-specific W release.

Original language	English
Article number	084001
Journal	Nuclear Fusion
Volume	56
Issue number	8
DOIs	https://doi.org/10.1088/0029-5515/56/8/084001
State	Published - 5 Jul 2016

Keywords

3-strap
ASDEX Upgrade
ICRF
RF sheath
impurity
tungsten

Access to Document

10.1088/0029-5515/56/8/084001

Cite this

@article{7c2d1f3826cd43f28b0319133b426330,

title = "First results with 3-strap ICRF antennas in ASDEX Upgrade",

abstract = "The 3-strap antennas in ASDEX Upgrade allow ICRF operation with low tungsten (W) content in the confined plasma with W-coated antenna limiters. With the 3-strap antenna configuration, the local W impurity source at the antenna is drastically reduced and the core W concentration is similar to that of the boron coated 2-strap antenna at a given ICRF power. Operation of the 3-strap antennas with the power ratio between the central and the outer straps of 1.5 : 1 and 2 : 1 is adopted to minimize the ICRF-specific W release.",

keywords = "3-strap, ASDEX Upgrade, ICRF, RF sheath, impurity, tungsten",

author = "V. Bobkov and F. Braun and R. Dux and A. Herrmann and H. Faugel and H. F{\"u}nfgelder and A. Kallenbach and R. Neu and Noterdaeme, {J. M.} and R. Ochoukov and Th P{\"u}tterich and A. Tuccilo and O. Tudisco and Y. Wang and Q. Yang",

note = "Publisher Copyright: {\textcopyright} 2016 EURATOM Printed in the UK.",

year = "2016",

month = jul,

day = "5",

doi = "10.1088/0029-5515/56/8/084001",

language = "English",

volume = "56",

journal = "Nuclear Fusion",

issn = "0029-5515",

publisher = "IOP Publishing Ltd.",

number = "8",

}

TY - JOUR

T1 - First results with 3-strap ICRF antennas in ASDEX Upgrade

AU - Bobkov, V.

AU - Braun, F.

AU - Dux, R.

AU - Herrmann, A.

AU - Faugel, H.

AU - Fünfgelder, H.

AU - Kallenbach, A.

AU - Neu, R.

AU - Noterdaeme, J. M.

AU - Ochoukov, R.

AU - Pütterich, Th

AU - Tuccilo, A.

AU - Tudisco, O.

AU - Wang, Y.

AU - Yang, Q.

PY - 2016/7/5

Y1 - 2016/7/5

N2 - The 3-strap antennas in ASDEX Upgrade allow ICRF operation with low tungsten (W) content in the confined plasma with W-coated antenna limiters. With the 3-strap antenna configuration, the local W impurity source at the antenna is drastically reduced and the core W concentration is similar to that of the boron coated 2-strap antenna at a given ICRF power. Operation of the 3-strap antennas with the power ratio between the central and the outer straps of 1.5 : 1 and 2 : 1 is adopted to minimize the ICRF-specific W release.

AB - The 3-strap antennas in ASDEX Upgrade allow ICRF operation with low tungsten (W) content in the confined plasma with W-coated antenna limiters. With the 3-strap antenna configuration, the local W impurity source at the antenna is drastically reduced and the core W concentration is similar to that of the boron coated 2-strap antenna at a given ICRF power. Operation of the 3-strap antennas with the power ratio between the central and the outer straps of 1.5 : 1 and 2 : 1 is adopted to minimize the ICRF-specific W release.

KW - 3-strap

KW - ASDEX Upgrade

KW - ICRF

KW - RF sheath

KW - impurity

KW - tungsten

UR - http://www.scopus.com/inward/record.url?scp=84979609154&partnerID=8YFLogxK

U2 - 10.1088/0029-5515/56/8/084001

DO - 10.1088/0029-5515/56/8/084001

M3 - Article

AN - SCOPUS:84979609154

SN - 0029-5515

VL - 56

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 8

M1 - 084001

ER -

First results with 3-strap ICRF antennas in ASDEX Upgrade

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this