Turbulence driven widening of the near-SOL power width for H-mode operation in ASDEX Upgrade

the ASDEX Upgrade team; the EUROfusion MST1 team

Turbulence driven widening of the near-SOL power width for H-mode operation in ASDEX Upgrade

the ASDEX Upgrade team, the EUROfusion MST1 team

Research output: Contribution to conference › Paper › peer-review

Original language	English (US)
State	Published - 2019
Event	46th European Physical Society Conference on Plasma Physics, EPS 2019 - Milan, Italy Duration: Jul 8 2019 → Jul 12 2019

Conference

Conference	46th European Physical Society Conference on Plasma Physics, EPS 2019
Country/Territory	Italy
City	Milan
Period	7/8/19 → 7/12/19

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

Cite this

@conference{11cc2ffae3394e7cb44c04d415450fdc,

title = "Turbulence driven widening of the near-SOL power width for H-mode operation in ASDEX Upgrade",

author = "{the ASDEX Upgrade team} and {the EUROfusion MST1 team} and T. Eich and P. Manz and Goldston, {R. J.} and P. Hennequin and P. David and M. Faitsch and B. Kurzan and B. Sieglin and E. Wolfrum",

note = "Funding Information: charges with higher shaping show higher H98,y2 values at same αt. This observation needs further investigation and should be kept in mind when planning new multi-machine experimental mea- surements. In sum, the well established multi-machine scaling is identified to define a lower limit, at a small turbulence level, for the power width. A widening of a factor of about two for the power width or temperature decay length is observed at higher values of αt and collisionality. The observed reduction of the confinement factor is consistent with the picture of elevated turbulence at increased αt. Acknowledgements This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 and 2019-2020 under grant agreement No 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission. The work of RJG was supported by US Contract No.DE-AC02-09CH11466. Funding Information: This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 and 2019-2020 under grant agreement No 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission. The work of RJG was supported by US Contract No.DE-AC02-09CH11466.; 46th European Physical Society Conference on Plasma Physics, EPS 2019 ; Conference date: 08-07-2019 Through 12-07-2019",

year = "2019",

language = "English (US)",

}

TY - CONF

T1 - Turbulence driven widening of the near-SOL power width for H-mode operation in ASDEX Upgrade

AU - the ASDEX Upgrade team

AU - the EUROfusion MST1 team

AU - Eich, T.

AU - Manz, P.

AU - Goldston, R. J.

AU - Hennequin, P.

AU - David, P.

AU - Faitsch, M.

AU - Kurzan, B.

AU - Sieglin, B.

AU - Wolfrum, E.

N1 - Funding Information: charges with higher shaping show higher H98,y2 values at same αt. This observation needs further investigation and should be kept in mind when planning new multi-machine experimental mea- surements. In sum, the well established multi-machine scaling is identified to define a lower limit, at a small turbulence level, for the power width. A widening of a factor of about two for the power width or temperature decay length is observed at higher values of αt and collisionality. The observed reduction of the confinement factor is consistent with the picture of elevated turbulence at increased αt. Acknowledgements This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 and 2019-2020 under grant agreement No 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission. The work of RJG was supported by US Contract No.DE-AC02-09CH11466. Funding Information: This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 and 2019-2020 under grant agreement No 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission. The work of RJG was supported by US Contract No.DE-AC02-09CH11466.

PY - 2019

Y1 - 2019

UR - http://www.scopus.com/inward/record.url?scp=85084020064&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85084020064&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:85084020064

T2 - 46th European Physical Society Conference on Plasma Physics, EPS 2019

Y2 - 8 July 2019 through 12 July 2019

ER -

Turbulence driven widening of the near-SOL power width for H-mode operation in ASDEX Upgrade

Conference

All Science Journal Classification (ASJC) codes

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