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Title: Noninductive 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 that any CHI discharges previously produced in a Spheromak or a Spherical Torus (ST).

Authors:
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Publication Date:
Research Org.:
Princeton Plasma Physics Lab., NJ (US)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
784548
Report Number(s):
PPPL-3562
TRN: US0106113
DOE Contract Number:  
AC02-76CH03073
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 10 May 2001
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; NSTX DEVICE; HELICITY; SOLENOIDS; BEAM INJECTION; BEAM CURRENTS

Citation Formats

Raman, R., Jarboe, T.R., Mueller, D., Schaffer, M.J., Maqueda, R., Nelson, B.A., Sabbagh, S., Bell, M., Ewig, R., Fredrickson, E., Gates, D., Hosea, J., Jardin, S., Ji, H., Kaita, R., Kaye, S.M., Kugel, H., Lao, L., Maingi, R., Menard, J., Ono, M., Orvis, D., Paul, S., Peng, M., Skinner, C.H., Wilgen, J.B., Zweben, S., and and the NSTX Research Team. Noninductive Current Generation in NSTX using Coaxial Helicity Injection. United States: N. p., 2001. Web. doi:10.2172/784548.
Raman, R., Jarboe, T.R., Mueller, D., Schaffer, M.J., Maqueda, R., Nelson, B.A., Sabbagh, S., Bell, M., Ewig, R., Fredrickson, E., Gates, D., Hosea, J., Jardin, S., Ji, H., Kaita, R., Kaye, S.M., Kugel, H., Lao, L., Maingi, R., Menard, J., Ono, M., Orvis, D., Paul, S., Peng, M., Skinner, C.H., Wilgen, J.B., Zweben, S., & and the NSTX Research Team. Noninductive Current Generation in NSTX using Coaxial Helicity Injection. United States. doi:10.2172/784548.
Raman, R., Jarboe, T.R., Mueller, D., Schaffer, M.J., Maqueda, R., Nelson, B.A., Sabbagh, S., Bell, M., Ewig, R., Fredrickson, E., Gates, D., Hosea, J., Jardin, S., Ji, H., Kaita, R., Kaye, S.M., Kugel, H., Lao, L., Maingi, R., Menard, J., Ono, M., Orvis, D., Paul, S., Peng, M., Skinner, C.H., Wilgen, J.B., Zweben, S., and and the NSTX Research Team. Thu . "Noninductive Current Generation in NSTX using Coaxial Helicity Injection". United States. doi:10.2172/784548. https://www.osti.gov/servlets/purl/784548.
@article{osti_784548,
title = {Noninductive Current Generation in NSTX using Coaxial Helicity Injection},
author = {Raman, R. and Jarboe, T.R. and Mueller, D. and Schaffer, M.J. and Maqueda, R. and Nelson, B.A. and Sabbagh, S. and Bell, M. and Ewig, R. and Fredrickson, E. and Gates, D. and Hosea, J. and Jardin, S. and Ji, H. and Kaita, R. and Kaye, S.M. and Kugel, H. and Lao, L. and Maingi, R. and Menard, J. and Ono, M. and Orvis, D. and Paul, S. and Peng, M. and Skinner, C.H. and Wilgen, J.B. and Zweben, S. and and the NSTX Research Team},
abstractNote = {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 that any CHI discharges previously produced in a Spheromak or a Spherical Torus (ST).},
doi = {10.2172/784548},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu May 10 00:00:00 EDT 2001},
month = {Thu May 10 00:00:00 EDT 2001}
}

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