Behavior of impurity ion velocities during the pulsed poloidal current drive in the Madison Symmetric Torus reversed-field pinch

Hajime Sakakita; Darren Craig; Jay K. Anderson; Ted M. Biewer; Stephen D. Terry; Brett E. Chapman; Daniel J. Den-Hartog; Stewart C. Prager

doi:10.1143/jjap.42.l505

Behavior of impurity ion velocities during the pulsed poloidal current drive in the Madison Symmetric Torus reversed-field pinch

Hajime Sakakita, Darren Craig, Jay K. Anderson, Ted M. Biewer, Stephen D. Terry, Brett E. Chapman, Daniel J. Den-Hartog, Stewart C. Prager

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

1 Scopus citations

Abstract

We report on passive measurements of impurity ion velocities during the pulsed poloidal current drive (PPCD) in the Madison Symmetric Torus reversed-field pinch. During PPCD, the electron temperature increased and a sudden reduction of magnetic fluctuations was observed. For this change, we have studied whether plasma velocity is affected. Plasma rotation is observed to decrease during PPCD. From measurements of line intensities for several impurities at 10 poloidal chords, it is found that the impurity line emission shifts outward. The ion temperature of impurities is reasonably connected to that measured by charge exchange recombination spectroscopy from core to edge.

Original language	English
Pages (from-to)	L505-L507
Journal	Japanese Journal of Applied Physics, Part 2: Letters
Volume	42
Issue number	5 B
DOIs	https://doi.org/10.1143/jjap.42.l505
State	Published - May 15 2003
Externally published	Yes

Keywords

Equilibrium reconstruction
Impurity emission
Ion temperature
Plasma velocity
Pulsed poloidal current drive
Reversed field pinch

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10.1143/jjap.42.l505

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Sakakita, H., Craig, D., Anderson, J. K., Biewer, T. M., Terry, S. D., Chapman, B. E., Den-Hartog, D. J., & Prager, S. C. (2003). Behavior of impurity ion velocities during the pulsed poloidal current drive in the Madison Symmetric Torus reversed-field pinch. Japanese Journal of Applied Physics, Part 2: Letters, 42(5 B), L505-L507. https://doi.org/10.1143/jjap.42.l505

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title = "Behavior of impurity ion velocities during the pulsed poloidal current drive in the Madison Symmetric Torus reversed-field pinch",

abstract = "We report on passive measurements of impurity ion velocities during the pulsed poloidal current drive (PPCD) in the Madison Symmetric Torus reversed-field pinch. During PPCD, the electron temperature increased and a sudden reduction of magnetic fluctuations was observed. For this change, we have studied whether plasma velocity is affected. Plasma rotation is observed to decrease during PPCD. From measurements of line intensities for several impurities at 10 poloidal chords, it is found that the impurity line emission shifts outward. The ion temperature of impurities is reasonably connected to that measured by charge exchange recombination spectroscopy from core to edge.",

keywords = "Equilibrium reconstruction, Impurity emission, Ion temperature, Plasma velocity, Pulsed poloidal current drive, Reversed field pinch",

author = "Hajime Sakakita and Darren Craig and Anderson, {Jay K.} and Biewer, {Ted M.} and Terry, {Stephen D.} and Chapman, {Brett E.} and Den-Hartog, {Daniel J.} and Prager, {Stewart C.}",

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doi = "10.1143/jjap.42.l505",

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T1 - Behavior of impurity ion velocities during the pulsed poloidal current drive in the Madison Symmetric Torus reversed-field pinch

AU - Sakakita, Hajime

AU - Craig, Darren

AU - Anderson, Jay K.

AU - Biewer, Ted M.

AU - Terry, Stephen D.

AU - Chapman, Brett E.

AU - Den-Hartog, Daniel J.

AU - Prager, Stewart C.

PY - 2003/5/15

Y1 - 2003/5/15

N2 - We report on passive measurements of impurity ion velocities during the pulsed poloidal current drive (PPCD) in the Madison Symmetric Torus reversed-field pinch. During PPCD, the electron temperature increased and a sudden reduction of magnetic fluctuations was observed. For this change, we have studied whether plasma velocity is affected. Plasma rotation is observed to decrease during PPCD. From measurements of line intensities for several impurities at 10 poloidal chords, it is found that the impurity line emission shifts outward. The ion temperature of impurities is reasonably connected to that measured by charge exchange recombination spectroscopy from core to edge.

AB - We report on passive measurements of impurity ion velocities during the pulsed poloidal current drive (PPCD) in the Madison Symmetric Torus reversed-field pinch. During PPCD, the electron temperature increased and a sudden reduction of magnetic fluctuations was observed. For this change, we have studied whether plasma velocity is affected. Plasma rotation is observed to decrease during PPCD. From measurements of line intensities for several impurities at 10 poloidal chords, it is found that the impurity line emission shifts outward. The ion temperature of impurities is reasonably connected to that measured by charge exchange recombination spectroscopy from core to edge.

KW - Equilibrium reconstruction

KW - Impurity emission

KW - Ion temperature

KW - Plasma velocity

KW - Pulsed poloidal current drive

KW - Reversed field pinch

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AN - SCOPUS:0038042471

SN - 0021-4922

VL - 42

SP - L505-L507

JO - Japanese Journal of Applied Physics, Part 2: Letters

JF - Japanese Journal of Applied Physics, Part 2: Letters

IS - 5 B

ER -

Behavior of impurity ion velocities during the pulsed poloidal current drive in the Madison Symmetric Torus reversed-field pinch

Abstract

Keywords

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