Non-inductive current generation in NSTX using coaxial helicity injection

R. Raman; T. R. Jarboe; D. Mueller; M. J. Schaffer; R. Maqueda; B. A. Nelson; S. A. Sabbagh; M. G. Bell; R. Ewig; E. D. Fredrickson; D. A. Gates; J. C. Hosea; S. C. Jardin; H. Ji; R. Kaita; S. M. Kaye; H. W. Kugel; L. L. Lao; R. Maingi; J. Menard; M. Ono; D. Orvis; F. Paoletti; S. F. Paul; Y. K.M. Peng; C. H. Skinner; J. B. Wilgen; S. J. Zweben

doi:10.1088/0029-5515/41/8/311

Non-inductive current generation in NSTX using coaxial helicity injection

R. Raman, T. R. Jarboe, D. Mueller, M. J. Schaffer, R. Maqueda, B. A. Nelson, S. A. Sabbagh, M. G. Bell, R. Ewig, E. D. Fredrickson, D. A. Gates, J. C. Hosea, S. C. Jardin, H. Ji, R. Kaita, S. M. Kaye, H. W. Kugel, L. L. Lao, R. Maingi, J. MenardM. Ono, D. Orvis, F. Paoletti, S. F. Paul, Y. K.M. Peng, C. H. Skinner, J. B. Wilgen, S. J. Zweben

Astrophysical Sciences

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Abstract

Coaxial helicity injection (CHI) on the National Spherical Torus Experiment (NSTX) has produced 240 kA of toroidal current without the use of the central solenoid. Values of the current multiplication ratio (CHI produced toroidal current/injector current) up to 10 were obtained, in agreement with predictions. The discharges, which lasted for up to 200 ms, limited only by the programmed waveform, are more than an order of magnitude longer in duration than any CHI discharges previously produced in a spheromak or a spherical torus.

Original language	English (US)
Pages (from-to)	1081-1086
Number of pages	6
Journal	Nuclear Fusion
Volume	41
Issue number	8
DOIs	https://doi.org/10.1088/0029-5515/41/8/311
State	Published - Aug 2001

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Condensed Matter Physics

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10.1088/0029-5515/41/8/311

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Raman, R., Jarboe, T. R., Mueller, D., Schaffer, M. J., Maqueda, R., Nelson, B. A., Sabbagh, S. A., Bell, M. G., Ewig, R., Fredrickson, E. D., Gates, D. A., Hosea, J. C., Jardin, S. C., Ji, H., Kaita, R., Kaye, S. M., Kugel, H. W., Lao, L. L., Maingi, R., ... Zweben, S. J. (2001). Non-inductive current generation in NSTX using coaxial helicity injection. Nuclear Fusion, 41(8), 1081-1086. https://doi.org/10.1088/0029-5515/41/8/311

@article{5abf1e87b18b40a0ba9a024e76651565,

title = "Non-inductive current generation in NSTX using coaxial helicity injection",

abstract = "Coaxial helicity injection (CHI) on the National Spherical Torus Experiment (NSTX) has produced 240 kA of toroidal current without the use of the central solenoid. Values of the current multiplication ratio (CHI produced toroidal current/injector current) up to 10 were obtained, in agreement with predictions. The discharges, which lasted for up to 200 ms, limited only by the programmed waveform, are more than an order of magnitude longer in duration than any CHI discharges previously produced in a spheromak or a spherical torus.",

author = "R. Raman and Jarboe, {T. R.} and D. Mueller and Schaffer, {M. J.} and R. Maqueda and Nelson, {B. A.} and Sabbagh, {S. A.} and Bell, {M. G.} and R. Ewig and Fredrickson, {E. D.} and Gates, {D. A.} and Hosea, {J. C.} and Jardin, {S. C.} and H. Ji and R. Kaita and Kaye, {S. M.} and Kugel, {H. W.} and Lao, {L. L.} and R. Maingi and J. Menard and M. Ono and D. Orvis and F. Paoletti and Paul, {S. F.} and Peng, {Y. K.M.} and Skinner, {C. H.} and Wilgen, {J. B.} and Zweben, {S. J.}",

year = "2001",

month = aug,

doi = "10.1088/0029-5515/41/8/311",

language = "English (US)",

volume = "41",

pages = "1081--1086",

journal = "Nuclear Fusion",

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publisher = "IOP Publishing Ltd.",

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Raman, R, Jarboe, TR, Mueller, D, Schaffer, MJ, Maqueda, R, Nelson, BA, Sabbagh, SA, Bell, MG, Ewig, R, Fredrickson, ED, Gates, DA, Hosea, JC, Jardin, SC, Ji, H, Kaita, R, Kaye, SM, Kugel, HW, Lao, LL, Maingi, R, Menard, J, Ono, M, Orvis, D, Paoletti, F, Paul, SF, Peng, YKM, Skinner, CH, Wilgen, JB & Zweben, SJ 2001, 'Non-inductive current generation in NSTX using coaxial helicity injection', Nuclear Fusion, vol. 41, no. 8, pp. 1081-1086. https://doi.org/10.1088/0029-5515/41/8/311

TY - JOUR

T1 - Non-inductive current generation in NSTX using coaxial helicity injection

AU - Raman, R.

AU - Jarboe, T. R.

AU - Mueller, D.

AU - Schaffer, M. J.

AU - Maqueda, R.

AU - Nelson, B. A.

AU - Sabbagh, S. A.

AU - Bell, M. G.

AU - Ewig, R.

AU - Fredrickson, E. D.

AU - Gates, D. A.

AU - Hosea, J. C.

AU - Jardin, S. C.

AU - Ji, H.

AU - Kaita, R.

AU - Kaye, S. M.

AU - Kugel, H. W.

AU - Lao, L. L.

AU - Maingi, R.

AU - Menard, J.

AU - Ono, M.

AU - Orvis, D.

AU - Paoletti, F.

AU - Paul, S. F.

AU - Peng, Y. K.M.

AU - Skinner, C. H.

AU - Wilgen, J. B.

AU - Zweben, S. J.

PY - 2001/8

Y1 - 2001/8

N2 - Coaxial helicity injection (CHI) on the National Spherical Torus Experiment (NSTX) has produced 240 kA of toroidal current without the use of the central solenoid. Values of the current multiplication ratio (CHI produced toroidal current/injector current) up to 10 were obtained, in agreement with predictions. The discharges, which lasted for up to 200 ms, limited only by the programmed waveform, are more than an order of magnitude longer in duration than any CHI discharges previously produced in a spheromak or a spherical torus.

AB - Coaxial helicity injection (CHI) on the National Spherical Torus Experiment (NSTX) has produced 240 kA of toroidal current without the use of the central solenoid. Values of the current multiplication ratio (CHI produced toroidal current/injector current) up to 10 were obtained, in agreement with predictions. The discharges, which lasted for up to 200 ms, limited only by the programmed waveform, are more than an order of magnitude longer in duration than any CHI discharges previously produced in a spheromak or a spherical torus.

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AN - SCOPUS:0012481974

SN - 0029-5515

VL - 41

SP - 1081

EP - 1086

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 8

ER -

Non-inductive current generation in NSTX using coaxial helicity injection

Abstract

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