Fluctuation and modulation transport studies in the Advanced Toroidal Facility (ATF) torsatron

J. B. Wilgen; M. Murakami; J. H. Harris; T. S. Bigelow; R. A. Dory; B. A. Carreras; S. C. Aceto; D. B. Batchelor; L. R. Baylor; G. L. Bell; J. D. Bell; R. J. Colchin; E. C. Crume; N. Dominguez; J. L. Dunlap; G. R. Dyer; A. C. England; R. F. Gandy; J. C. Glowienka; R. C. Goldfinger; R. H. Goulding; G. R. Hanson; C. Hidalgo; S. Hiroe; S. P. Hirshman; L. D. Horton; H. C. Howe; D. P. Hutchinson; R. C. Isler; T. C. Jernigan; H. Ji; H. Kaneko; L. M. Kovrizhnykh; M. Kwon; R. A. Langley; D. K. Lee; K. M. Likin; J. F. Lyon; C. H. Ma; M. M. Menon; P. K. Mioduszewski; O. Motojima; H. Okada; S. Paul; A. L. Qualls; D. A. Rasmussen; R. K. Richards; J. A. Rome; M. J. Saltmarsh; K. A. Sarksyan; M. Sato; J. G. Schwelberger; K. C. Shaing; M. G. Shats; T. D. Shepard; J. E. Simpkins; C. E. Thomas; T. Uckan; K. L. Vander Sluis; M. R. Wade; W. R. Wing; H. Yamada; J. J. Zielinski

doi:10.1063/1.860737

Fluctuation and modulation transport studies in the Advanced Toroidal Facility (ATF) torsatron

J. B. Wilgen, M. Murakami, J. H. Harris, T. S. Bigelow, R. A. Dory, B. A. Carreras, S. C. Aceto, D. B. Batchelor, L. R. Baylor, G. L. Bell, J. D. Bell, R. J. Colchin, E. C. Crume, N. Dominguez, J. L. Dunlap, G. R. Dyer, A. C. England, R. F. Gandy, J. C. Glowienka, R. C. GoldfingerR. H. Goulding, G. R. Hanson, C. Hidalgo, S. Hiroe, S. P. Hirshman, L. D. Horton, H. C. Howe, D. P. Hutchinson, R. C. Isler, T. C. Jernigan, H. Ji, H. Kaneko, L. M. Kovrizhnykh, M. Kwon, R. A. Langley, D. K. Lee, K. M. Likin, J. F. Lyon, C. H. Ma, M. M. Menon, P. K. Mioduszewski, O. Motojima, H. Okada, S. Paul, A. L. Qualls, D. A. Rasmussen, R. K. Richards, J. A. Rome, M. J. Saltmarsh, K. A. Sarksyan, M. Sato, J. G. Schwelberger, K. C. Shaing, M. G. Shats, T. D. Shepard, J. E. Simpkins, C. E. Thomas, T. Uckan, K. L. Vander Sluis, M. R. Wade, W. R. Wing, H. Yamada, J. J. Zielinski

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Abstract

The Advanced Toroidal Facility (ATF) torsatron [Fusion Technol. 10, 179 (1986)] has completed experiments focusing on microwave scattering measurements of density fluctuations and transport studies utilizing the modulation of dimensionless parameters. Microwave scattering measurements of electron density fluctuations in the core of low-collisionality electron cyclotron heated (ECH) plasmas show features that might be evidence of trapped electron instabilities. Starting from gyro-Bohm scaling, the additional dependence of confinement on the dimensionless parameters ν_* and β (collisionality and beta) has been investigated by modulating each of these parameters separately, revealing the additional favorable dependence, τ_E∝τ _gBν_*^-0.18β^+0.3.

Original language	English (US)
Pages (from-to)	2513-2518
Number of pages	6
Journal	Physics of Fluids B
Volume	5
Issue number	7
DOIs	https://doi.org/10.1063/1.860737
State	Published - 1993
Externally published	Yes

All Science Journal Classification (ASJC) codes

Computational Mechanics
Condensed Matter Physics
Mechanics of Materials
General Physics and Astronomy
Fluid Flow and Transfer Processes

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10.1063/1.860737

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Wilgen, J. B., Murakami, M., Harris, J. H., Bigelow, T. S., Dory, R. A., Carreras, B. A., Aceto, S. C., Batchelor, D. B., Baylor, L. R., Bell, G. L., Bell, J. D., Colchin, R. J., Crume, E. C., Dominguez, N., Dunlap, J. L., Dyer, G. R., England, A. C., Gandy, R. F., Glowienka, J. C., ... Zielinski, J. J. (1993). Fluctuation and modulation transport studies in the Advanced Toroidal Facility (ATF) torsatron. Physics of Fluids B, 5(7), 2513-2518. https://doi.org/10.1063/1.860737

@article{93e80950b1a5490996187cc824ad088d,

title = "Fluctuation and modulation transport studies in the Advanced Toroidal Facility (ATF) torsatron",

abstract = "The Advanced Toroidal Facility (ATF) torsatron [Fusion Technol. 10, 179 (1986)] has completed experiments focusing on microwave scattering measurements of density fluctuations and transport studies utilizing the modulation of dimensionless parameters. Microwave scattering measurements of electron density fluctuations in the core of low-collisionality electron cyclotron heated (ECH) plasmas show features that might be evidence of trapped electron instabilities. Starting from gyro-Bohm scaling, the additional dependence of confinement on the dimensionless parameters ν* and β (collisionality and beta) has been investigated by modulating each of these parameters separately, revealing the additional favorable dependence, τE∝τ gBν*-0.18β+0.3.",

author = "Wilgen, {J. B.} and M. Murakami and Harris, {J. H.} and Bigelow, {T. S.} and Dory, {R. A.} and Carreras, {B. A.} and Aceto, {S. C.} and Batchelor, {D. B.} and Baylor, {L. R.} and Bell, {G. L.} and Bell, {J. D.} and Colchin, {R. J.} and Crume, {E. C.} and N. Dominguez and Dunlap, {J. L.} and Dyer, {G. R.} and England, {A. C.} and Gandy, {R. F.} and Glowienka, {J. C.} and Goldfinger, {R. C.} and Goulding, {R. H.} and Hanson, {G. R.} and C. Hidalgo and S. Hiroe and Hirshman, {S. P.} and Horton, {L. D.} and Howe, {H. C.} and Hutchinson, {D. P.} and Isler, {R. C.} and Jernigan, {T. C.} and H. Ji and H. Kaneko and Kovrizhnykh, {L. M.} and M. Kwon and Langley, {R. A.} and Lee, {D. K.} and Likin, {K. M.} and Lyon, {J. F.} and Ma, {C. H.} and Menon, {M. M.} and Mioduszewski, {P. K.} and O. Motojima and H. Okada and S. Paul and Qualls, {A. L.} and Rasmussen, {D. A.} and Richards, {R. K.} and Rome, {J. A.} and Saltmarsh, {M. J.} and Sarksyan, {K. A.} and M. Sato and Schwelberger, {J. G.} and Shaing, {K. C.} and Shats, {M. G.} and Shepard, {T. D.} and Simpkins, {J. E.} and Thomas, {C. E.} and T. Uckan and {Vander Sluis}, {K. L.} and Wade, {M. R.} and Wing, {W. R.} and H. Yamada and Zielinski, {J. J.}",

year = "1993",

doi = "10.1063/1.860737",

language = "English (US)",

volume = "5",

pages = "2513--2518",

journal = "Physics of Fluids B",

issn = "0899-8221",

publisher = "American Institute of Physics",

number = "7",

}

Wilgen, JB, Murakami, M, Harris, JH, Bigelow, TS, Dory, RA, Carreras, BA, Aceto, SC, Batchelor, DB, Baylor, LR, Bell, GL, Bell, JD, Colchin, RJ, Crume, EC, Dominguez, N, Dunlap, JL, Dyer, GR, England, AC, Gandy, RF, Glowienka, JC, Goldfinger, RC, Goulding, RH, Hanson, GR, Hidalgo, C, Hiroe, S, Hirshman, SP, Horton, LD, Howe, HC, Hutchinson, DP, Isler, RC, Jernigan, TC, Ji, H, Kaneko, H, Kovrizhnykh, LM, Kwon, M, Langley, RA, Lee, DK, Likin, KM, Lyon, JF, Ma, CH, Menon, MM, Mioduszewski, PK, Motojima, O, Okada, H, Paul, S, Qualls, AL, Rasmussen, DA, Richards, RK, Rome, JA, Saltmarsh, MJ, Sarksyan, KA, Sato, M, Schwelberger, JG, Shaing, KC, Shats, MG, Shepard, TD, Simpkins, JE, Thomas, CE, Uckan, T, Vander Sluis, KL, Wade, MR, Wing, WR, Yamada, H & Zielinski, JJ 1993, 'Fluctuation and modulation transport studies in the Advanced Toroidal Facility (ATF) torsatron', Physics of Fluids B, vol. 5, no. 7, pp. 2513-2518. https://doi.org/10.1063/1.860737

TY - JOUR

T1 - Fluctuation and modulation transport studies in the Advanced Toroidal Facility (ATF) torsatron

AU - Wilgen, J. B.

AU - Murakami, M.

AU - Harris, J. H.

AU - Bigelow, T. S.

AU - Dory, R. A.

AU - Carreras, B. A.

AU - Aceto, S. C.

AU - Batchelor, D. B.

AU - Baylor, L. R.

AU - Bell, G. L.

AU - Bell, J. D.

AU - Colchin, R. J.

AU - Crume, E. C.

AU - Dominguez, N.

AU - Dunlap, J. L.

AU - Dyer, G. R.

AU - England, A. C.

AU - Gandy, R. F.

AU - Glowienka, J. C.

AU - Goldfinger, R. C.

AU - Goulding, R. H.

AU - Hanson, G. R.

AU - Hidalgo, C.

AU - Hiroe, S.

AU - Hirshman, S. P.

AU - Horton, L. D.

AU - Howe, H. C.

AU - Hutchinson, D. P.

AU - Isler, R. C.

AU - Jernigan, T. C.

AU - Ji, H.

AU - Kaneko, H.

AU - Kovrizhnykh, L. M.

AU - Kwon, M.

AU - Langley, R. A.

AU - Lee, D. K.

AU - Likin, K. M.

AU - Lyon, J. F.

AU - Ma, C. H.

AU - Menon, M. M.

AU - Mioduszewski, P. K.

AU - Motojima, O.

AU - Okada, H.

AU - Paul, S.

AU - Qualls, A. L.

AU - Rasmussen, D. A.

AU - Richards, R. K.

AU - Rome, J. A.

AU - Saltmarsh, M. J.

AU - Sarksyan, K. A.

AU - Sato, M.

AU - Schwelberger, J. G.

AU - Shaing, K. C.

AU - Shats, M. G.

AU - Shepard, T. D.

AU - Simpkins, J. E.

AU - Thomas, C. E.

AU - Uckan, T.

AU - Vander Sluis, K. L.

AU - Wade, M. R.

AU - Wing, W. R.

AU - Yamada, H.

AU - Zielinski, J. J.

PY - 1993

Y1 - 1993

N2 - The Advanced Toroidal Facility (ATF) torsatron [Fusion Technol. 10, 179 (1986)] has completed experiments focusing on microwave scattering measurements of density fluctuations and transport studies utilizing the modulation of dimensionless parameters. Microwave scattering measurements of electron density fluctuations in the core of low-collisionality electron cyclotron heated (ECH) plasmas show features that might be evidence of trapped electron instabilities. Starting from gyro-Bohm scaling, the additional dependence of confinement on the dimensionless parameters ν* and β (collisionality and beta) has been investigated by modulating each of these parameters separately, revealing the additional favorable dependence, τE∝τ gBν*-0.18β+0.3.

AB - The Advanced Toroidal Facility (ATF) torsatron [Fusion Technol. 10, 179 (1986)] has completed experiments focusing on microwave scattering measurements of density fluctuations and transport studies utilizing the modulation of dimensionless parameters. Microwave scattering measurements of electron density fluctuations in the core of low-collisionality electron cyclotron heated (ECH) plasmas show features that might be evidence of trapped electron instabilities. Starting from gyro-Bohm scaling, the additional dependence of confinement on the dimensionless parameters ν* and β (collisionality and beta) has been investigated by modulating each of these parameters separately, revealing the additional favorable dependence, τE∝τ gBν*-0.18β+0.3.

UR - http://www.scopus.com/inward/record.url?scp=0003185127&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0003185127&partnerID=8YFLogxK

U2 - 10.1063/1.860737

DO - 10.1063/1.860737

M3 - Article

AN - SCOPUS:0003185127

SN - 0899-8221

VL - 5

SP - 2513

EP - 2518

JO - Physics of Fluids B

JF - Physics of Fluids B

IS - 7

ER -

Fluctuation and modulation transport studies in the Advanced Toroidal Facility (ATF) torsatron

Abstract

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