Design details of the transient CHI plasma start-up system on NSTX-U

Roger Raman; T. R. Jarboe; B. A. Nelson; D. Mueller; S. C. Jardin; C. Neumeyer; M. Ono; J. E. Menard

doi:10.1109/TPS.2014.2334553

Design details of the transient CHI plasma start-up system on NSTX-U

Roger Raman
, T. R. Jarboe
, B. A. Nelson
, D. Mueller
, S. C. Jardin
, C. Neumeyer
, M. Ono
, J. E. Menard

PPPL Theory

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

3 Scopus citations

Abstract

Elimination of the central solenoid would simplify the engineering design of a fusion nuclear science facility and tokamak based devices. The method of transient coaxial helicity injection (CHI) has successfully demonstrated formation of a high-quality closed flux plasma in NSTX and will be used as the front end of the start-up method for a full demonstration of noninductive current start-up, followed by noninductive current ramp-up using neutral beams in the NSTX-U device that is now under construction at the Princeton Plasma Physics Laboratory. CHI is implemented by driving current along open field lines that connect the lower inner and outer divertor plates of a spherical torus. The engineering system requirements and the design of the CHI system on NSTX-U are described.

Original language	English (US)
Article number	6862911
Pages (from-to)	2154-2160
Number of pages	7
Journal	IEEE Transactions on Plasma Science
Volume	42
Issue number	8
DOIs	https://doi.org/10.1109/TPS.2014.2334553
State	Published - Aug 2014

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Condensed Matter Physics

Keywords

CHI
helicity injection
noninductive
NSTX
NSTX-U
plasma start-up
solenoid-free
spherical torus (ST)

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10.1109/TPS.2014.2334553

Cite this

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title = "Design details of the transient CHI plasma start-up system on NSTX-U",

abstract = "Elimination of the central solenoid would simplify the engineering design of a fusion nuclear science facility and tokamak based devices. The method of transient coaxial helicity injection (CHI) has successfully demonstrated formation of a high-quality closed flux plasma in NSTX and will be used as the front end of the start-up method for a full demonstration of noninductive current start-up, followed by noninductive current ramp-up using neutral beams in the NSTX-U device that is now under construction at the Princeton Plasma Physics Laboratory. CHI is implemented by driving current along open field lines that connect the lower inner and outer divertor plates of a spherical torus. The engineering system requirements and the design of the CHI system on NSTX-U are described.",

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volume = "42",

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AU - Raman, Roger

AU - Jarboe, T. R.

AU - Nelson, B. A.

AU - Mueller, D.

AU - Jardin, S. C.

AU - Neumeyer, C.

AU - Ono, M.

AU - Menard, J. E.

PY - 2014/8

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AB - Elimination of the central solenoid would simplify the engineering design of a fusion nuclear science facility and tokamak based devices. The method of transient coaxial helicity injection (CHI) has successfully demonstrated formation of a high-quality closed flux plasma in NSTX and will be used as the front end of the start-up method for a full demonstration of noninductive current start-up, followed by noninductive current ramp-up using neutral beams in the NSTX-U device that is now under construction at the Princeton Plasma Physics Laboratory. CHI is implemented by driving current along open field lines that connect the lower inner and outer divertor plates of a spherical torus. The engineering system requirements and the design of the CHI system on NSTX-U are described.

KW - CHI

KW - helicity injection

KW - noninductive

KW - NSTX

KW - NSTX-U

KW - plasma start-up

KW - solenoid-free

KW - spherical torus (ST)

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ER -

Design details of the transient CHI plasma start-up system on NSTX-U

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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