Evidence on the effects of main-chamber neutrals on density shoulder broadening

C. K. Tsui; J. A. Boedo; D. Brida; O. Février; G. F. Harrer; A. Perek; H. Reimerdes; B. P. Duval; S. Gorno; U. A. Sheikh; C. Theiler; N. Vianello; N. Walkden; M. Wensing; M. Baquero-Ruiz

doi:10.1063/5.0090260

Evidence on the effects of main-chamber neutrals on density shoulder broadening

C. K. Tsui, J. A. Boedo, D. Brida, O. Février, G. F. Harrer, A. Perek, H. Reimerdes, B. P. Duval, S. Gorno, U. A. Sheikh, C. Theiler, N. Vianello, N. Walkden, M. Wensing, M. Baquero-Ruiz

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

13 Scopus citations

Abstract

Evidence that density shoulder broadening is dependent on high main-chamber neutral density is presented. Shoulder broadening does not occur when the sources for main-chamber neutrals are minimized using divertor baffles and wide gaps to the first wall (∼3× the density decay length). Removing the baffles or reducing the gap to the inner wall both act to increase the density shoulder amplitude in otherwise identical TCV discharges. Radial turbulent transport is correlated with shoulder amplitude.

Original language	English
Article number	062507
Journal	Physics of Plasmas
Volume	29
Issue number	6
DOIs	https://doi.org/10.1063/5.0090260
State	Published - Jun 1 2022
Externally published	Yes

Access to Document

10.1063/5.0090260

Cite this

Tsui, C. K., Boedo, J. A., Brida, D., Février, O., Harrer, G. F., Perek, A., Reimerdes, H., Duval, B. P., Gorno, S., Sheikh, U. A., Theiler, C., Vianello, N., Walkden, N., Wensing, M., & Baquero-Ruiz, M. (2022). Evidence on the effects of main-chamber neutrals on density shoulder broadening. Physics of Plasmas, 29(6), Article 062507. https://doi.org/10.1063/5.0090260

@article{443d124028b844ba844fb5921247df2a,

title = "Evidence on the effects of main-chamber neutrals on density shoulder broadening",

abstract = "Evidence that density shoulder broadening is dependent on high main-chamber neutral density is presented. Shoulder broadening does not occur when the sources for main-chamber neutrals are minimized using divertor baffles and wide gaps to the first wall (∼3× the density decay length). Removing the baffles or reducing the gap to the inner wall both act to increase the density shoulder amplitude in otherwise identical TCV discharges. Radial turbulent transport is correlated with shoulder amplitude.",

author = "Tsui, {C. K.} and Boedo, {J. A.} and D. Brida and O. F{\'e}vrier and Harrer, {G. F.} and A. Perek and H. Reimerdes and Duval, {B. P.} and S. Gorno and Sheikh, {U. A.} and C. Theiler and N. Vianello and N. Walkden and M. Wensing and M. Baquero-Ruiz",

note = "Publisher Copyright: {\textcopyright} 2022 Author(s).",

year = "2022",

month = jun,

day = "1",

doi = "10.1063/5.0090260",

language = "English",

volume = "29",

journal = "Physics of Plasmas",

issn = "1070-664X",

publisher = "American Institute of Physics",

number = "6",

}

TY - JOUR

T1 - Evidence on the effects of main-chamber neutrals on density shoulder broadening

AU - Tsui, C. K.

AU - Boedo, J. A.

AU - Brida, D.

AU - Février, O.

AU - Harrer, G. F.

AU - Perek, A.

AU - Reimerdes, H.

AU - Duval, B. P.

AU - Gorno, S.

AU - Sheikh, U. A.

AU - Theiler, C.

AU - Vianello, N.

AU - Walkden, N.

AU - Wensing, M.

AU - Baquero-Ruiz, M.

PY - 2022/6/1

Y1 - 2022/6/1

N2 - Evidence that density shoulder broadening is dependent on high main-chamber neutral density is presented. Shoulder broadening does not occur when the sources for main-chamber neutrals are minimized using divertor baffles and wide gaps to the first wall (∼3× the density decay length). Removing the baffles or reducing the gap to the inner wall both act to increase the density shoulder amplitude in otherwise identical TCV discharges. Radial turbulent transport is correlated with shoulder amplitude.

AB - Evidence that density shoulder broadening is dependent on high main-chamber neutral density is presented. Shoulder broadening does not occur when the sources for main-chamber neutrals are minimized using divertor baffles and wide gaps to the first wall (∼3× the density decay length). Removing the baffles or reducing the gap to the inner wall both act to increase the density shoulder amplitude in otherwise identical TCV discharges. Radial turbulent transport is correlated with shoulder amplitude.

UR - http://www.scopus.com/inward/record.url?scp=85132801247&partnerID=8YFLogxK

U2 - 10.1063/5.0090260

DO - 10.1063/5.0090260

M3 - Article

AN - SCOPUS:85132801247

SN - 1070-664X

VL - 29

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 6

M1 - 062507

ER -

Evidence on the effects of main-chamber neutrals on density shoulder broadening

Abstract

Access to Document

Other files and links

Fingerprint

Cite this