Initial operation and edge plasma studies in ATF

P. K. Mioduszewski; J. D. Bell; T. S. Bigelow; R. J. Colchin; E. G. Crume; J. L. Dunlap; G. R. Dyer; A. C. England; J. C. Glowienka; J. W. Halliwell; J. H. Harris; G. R. Haste; D. L. Hillis; S. Hiroe; L. D. Horton; H. C. Howe; R. C. Isler; T. C. Jernigan; R. R. Kindsfather; R. A. Langley; J. F. Lyon; M. M. Menon; T. Mizuuchi; O. Motojima; M. Murakami; G. H. Neilson; V. K. Paré; D. A. Rasmussen; M. J. Saltmarsh; F. Sano; J. E. Simpkins; T. Uckan; T. L. White; J. B. Wilgen; W. R. Wing

doi:10.1016/0022-3115(89)90370-X

Initial operation and edge plasma studies in ATF

P. K. Mioduszewski, J. D. Bell, T. S. Bigelow, R. J. Colchin, E. G. Crume, J. L. Dunlap, G. R. Dyer, A. C. England, J. C. Glowienka, J. W. Halliwell, J. H. Harris, G. R. Haste, D. L. Hillis, S. Hiroe, L. D. Horton, H. C. Howe, R. C. Isler, T. C. Jernigan, R. R. Kindsfather, R. A. LangleyJ. F. Lyon, M. M. Menon, T. Mizuuchi, O. Motojima, M. Murakami, G. H. Neilson, V. K. Paré, D. A. Rasmussen, M. J. Saltmarsh, F. Sano, J. E. Simpkins, T. Uckan, T. L. White, J. B. Wilgen, W. R. Wing

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

2 Scopus citations

Abstract

Initial plasmas have been obtained in the Advanced Toroidal Facility (ATF) at Oak Ridge. During the first operating period all major systems worked well. Currentless plasmas have been formed with electron-cyclotron heating (ECH) and neutral beam injection (NBI). Plasma breakdown is achieved with 200 kW of microwave power using the second harmonic of the 53 GHz gyrotron at 1 T. Because of the insufficient initial cleanup state of the vessel, the density evolution during the discharge is dominated by impurity influxes due to plasma-wall interactions. Wall conditioning has so far been performed with glow discharge and electron-cyclotron resonance discharge cleaning, with the walls at room temperature. Plasma edge studies are in preparation. They are focused on experiments leading to a divertor concept for ATF. During this brief operating period, plasma conditions were dominated by wall interactions. It is expected that during the next period additional wall conditioning techniques will lead to improved plasma performance.

Original language	English
Pages (from-to)	825-830
Number of pages	6
Journal	Journal of Nuclear Materials
Volume	162-164
Issue number	C
DOIs	https://doi.org/10.1016/0022-3115(89)90370-X
State	Published - Apr 1 1989

Funding

* Research sponsored by the Office of Fusion Energy, US Department of Energy, under contract DE-AC~O~l~ with Martin Marietta Energy Systems, Inc. * * Kyoto University, Kyoto, Japan.

Funders	Funder number
Office of Fusion Energy
U.S. Department of Energy	DE-AC~O~

Keywords

ATF

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/0022-3115(89)90370-X

Cite this

Mioduszewski, P. K., Bell, J. D., Bigelow, T. S., Colchin, R. J., Crume, E. G., Dunlap, J. L., Dyer, G. R., England, A. C., Glowienka, J. C., Halliwell, J. W., Harris, J. H., Haste, G. R., Hillis, D. L., Hiroe, S., Horton, L. D., Howe, H. C., Isler, R. C., Jernigan, T. C., Kindsfather, R. R., ... Wing, W. R. (1989). Initial operation and edge plasma studies in ATF. Journal of Nuclear Materials, 162-164(C), 825-830. https://doi.org/10.1016/0022-3115(89)90370-X

@article{b52b887e9be34af4bbe6ece060140358,

title = "Initial operation and edge plasma studies in ATF",

abstract = "Initial plasmas have been obtained in the Advanced Toroidal Facility (ATF) at Oak Ridge. During the first operating period all major systems worked well. Currentless plasmas have been formed with electron-cyclotron heating (ECH) and neutral beam injection (NBI). Plasma breakdown is achieved with 200 kW of microwave power using the second harmonic of the 53 GHz gyrotron at 1 T. Because of the insufficient initial cleanup state of the vessel, the density evolution during the discharge is dominated by impurity influxes due to plasma-wall interactions. Wall conditioning has so far been performed with glow discharge and electron-cyclotron resonance discharge cleaning, with the walls at room temperature. Plasma edge studies are in preparation. They are focused on experiments leading to a divertor concept for ATF. During this brief operating period, plasma conditions were dominated by wall interactions. It is expected that during the next period additional wall conditioning techniques will lead to improved plasma performance.",

keywords = "ATF",

author = "Mioduszewski, {P. K.} and Bell, {J. D.} and Bigelow, {T. S.} and Colchin, {R. J.} and Crume, {E. G.} and Dunlap, {J. L.} and Dyer, {G. R.} and England, {A. C.} and Glowienka, {J. C.} and Halliwell, {J. W.} and Harris, {J. H.} and Haste, {G. R.} and Hillis, {D. L.} and S. Hiroe and Horton, {L. D.} and Howe, {H. C.} and Isler, {R. C.} and Jernigan, {T. C.} and Kindsfather, {R. R.} and Langley, {R. A.} and Lyon, {J. F.} and Menon, {M. M.} and T. Mizuuchi and O. Motojima and M. Murakami and Neilson, {G. H.} and Par{\'e}, {V. K.} and Rasmussen, {D. A.} and Saltmarsh, {M. J.} and F. Sano and Simpkins, {J. E.} and T. Uckan and White, {T. L.} and Wilgen, {J. B.} and Wing, {W. R.}",

year = "1989",

month = apr,

day = "1",

doi = "10.1016/0022-3115(89)90370-X",

language = "English",

volume = "162-164",

pages = "825--830",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier",

number = "C",

}

Mioduszewski, PK, Bell, JD, Bigelow, TS, Colchin, RJ, Crume, EG, Dunlap, JL, Dyer, GR, England, AC, Glowienka, JC, Halliwell, JW, Harris, JH, Haste, GR, Hillis, DL, Hiroe, S, Horton, LD, Howe, HC, Isler, RC, Jernigan, TC, Kindsfather, RR, Langley, RA, Lyon, JF, Menon, MM, Mizuuchi, T, Motojima, O, Murakami, M, Neilson, GH, Paré, VK, Rasmussen, DA, Saltmarsh, MJ, Sano, F, Simpkins, JE, Uckan, T, White, TL, Wilgen, JB & Wing, WR 1989, 'Initial operation and edge plasma studies in ATF', Journal of Nuclear Materials, vol. 162-164, no. C, pp. 825-830. https://doi.org/10.1016/0022-3115(89)90370-X

TY - JOUR

T1 - Initial operation and edge plasma studies in ATF

AU - Mioduszewski, P. K.

AU - Bell, J. D.

AU - Bigelow, T. S.

AU - Colchin, R. J.

AU - Crume, E. G.

AU - Dunlap, J. L.

AU - Dyer, G. R.

AU - England, A. C.

AU - Glowienka, J. C.

AU - Halliwell, J. W.

AU - Harris, J. H.

AU - Haste, G. R.

AU - Hillis, D. L.

AU - Hiroe, S.

AU - Horton, L. D.

AU - Howe, H. C.

AU - Isler, R. C.

AU - Jernigan, T. C.

AU - Kindsfather, R. R.

AU - Langley, R. A.

AU - Lyon, J. F.

AU - Menon, M. M.

AU - Mizuuchi, T.

AU - Motojima, O.

AU - Murakami, M.

AU - Neilson, G. H.

AU - Paré, V. K.

AU - Rasmussen, D. A.

AU - Saltmarsh, M. J.

AU - Sano, F.

AU - Simpkins, J. E.

AU - Uckan, T.

AU - White, T. L.

AU - Wilgen, J. B.

AU - Wing, W. R.

PY - 1989/4/1

Y1 - 1989/4/1

N2 - Initial plasmas have been obtained in the Advanced Toroidal Facility (ATF) at Oak Ridge. During the first operating period all major systems worked well. Currentless plasmas have been formed with electron-cyclotron heating (ECH) and neutral beam injection (NBI). Plasma breakdown is achieved with 200 kW of microwave power using the second harmonic of the 53 GHz gyrotron at 1 T. Because of the insufficient initial cleanup state of the vessel, the density evolution during the discharge is dominated by impurity influxes due to plasma-wall interactions. Wall conditioning has so far been performed with glow discharge and electron-cyclotron resonance discharge cleaning, with the walls at room temperature. Plasma edge studies are in preparation. They are focused on experiments leading to a divertor concept for ATF. During this brief operating period, plasma conditions were dominated by wall interactions. It is expected that during the next period additional wall conditioning techniques will lead to improved plasma performance.

AB - Initial plasmas have been obtained in the Advanced Toroidal Facility (ATF) at Oak Ridge. During the first operating period all major systems worked well. Currentless plasmas have been formed with electron-cyclotron heating (ECH) and neutral beam injection (NBI). Plasma breakdown is achieved with 200 kW of microwave power using the second harmonic of the 53 GHz gyrotron at 1 T. Because of the insufficient initial cleanup state of the vessel, the density evolution during the discharge is dominated by impurity influxes due to plasma-wall interactions. Wall conditioning has so far been performed with glow discharge and electron-cyclotron resonance discharge cleaning, with the walls at room temperature. Plasma edge studies are in preparation. They are focused on experiments leading to a divertor concept for ATF. During this brief operating period, plasma conditions were dominated by wall interactions. It is expected that during the next period additional wall conditioning techniques will lead to improved plasma performance.

KW - ATF

UR - http://www.scopus.com/inward/record.url?scp=45149144482&partnerID=8YFLogxK

U2 - 10.1016/0022-3115(89)90370-X

DO - 10.1016/0022-3115(89)90370-X

M3 - Article

AN - SCOPUS:45149144482

SN - 0022-3115

VL - 162-164

SP - 825

EP - 830

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

IS - C

ER -

Initial operation and edge plasma studies in ATF

Abstract

Funding

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this