Ergodic magnetic limiter experiments on TEXT with a 7 3 resonance

J. S. deGrassie; N. Ohyabu; N. H. Brooks; K. W. Gentle; R. Bengston; R. Bravenec; W. Hodge; T. Kochanski; K. Nelin; P. Phillips; T. Price; B. Richards; C. Ritz; W. Rowan; S. B. Kim; C. Klepper; S. Levinson; K. Leung; J. Porter; J. Snipes

doi:10.1016/0022-3115(84)90364-7

Ergodic magnetic limiter experiments on TEXT with a 7 3 resonance

J. S. deGrassie
, N. Ohyabu
, N. H. Brooks
, K. W. Gentle
, R. Bengston
, R. Bravenec
, W. Hodge
, T. Kochanski
, K. Nelin
, P. Phillips
, T. Price
, B. Richards
, C. Ritz
, W. Rowan
, S. B. Kim
, C. Klepper
, S. Levinson
, K. Leung
, J. Porter
, J. Snipes

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

Abstract

The ergodic magnetic limiter coils on TEXT have been reconfigured to produce the primary helical perturbation resonance at m = 7 n = 3. The experiments continue to demonstrate that the weak resonant perturbations modify the edge conditions in keeping with model predictions. We observe a reduction in the intrinsic impurity levels accompanying the helical current pulse, presumably the result of a reduction in the electron temperature in the edge. Heat follows the perturbed field lines to the limiter, generating heat load patterns which reflect the geometry of a magnetic island-limiter intersection. A strong spatial modulation of the electron density in the scrape-off-layer also reflects the helical mode structure.

Original language	American English
Pages (from-to)	266-270
Number of pages	5
Journal	Journal of Nuclear Materials
Volume	128-129
Issue number	C
DOIs	https://doi.org/10.1016/0022-3115(84)90364-7
State	Published - Dec 1984
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics
General Materials Science
Nuclear Energy and Engineering

Keywords

Langmuir probe
TEXT
ergodic magnetic limiter

Access to Document

10.1016/0022-3115(84)90364-7

Cite this

deGrassie, J. S., Ohyabu, N., Brooks, N. H., Gentle, K. W., Bengston, R., Bravenec, R., Hodge, W., Kochanski, T., Nelin, K., Phillips, P., Price, T., Richards, B., Ritz, C., Rowan, W., Kim, S. B., Klepper, C., Levinson, S., Leung, K., Porter, J., & Snipes, J. (1984). Ergodic magnetic limiter experiments on TEXT with a 7 3 resonance. Journal of Nuclear Materials, 128-129(C), 266-270. https://doi.org/10.1016/0022-3115(84)90364-7

@article{72dc61643b154579ae2de39509cefd54,

title = "Ergodic magnetic limiter experiments on TEXT with a 7 3 resonance",

abstract = "The ergodic magnetic limiter coils on TEXT have been reconfigured to produce the primary helical perturbation resonance at m = 7 n = 3. The experiments continue to demonstrate that the weak resonant perturbations modify the edge conditions in keeping with model predictions. We observe a reduction in the intrinsic impurity levels accompanying the helical current pulse, presumably the result of a reduction in the electron temperature in the edge. Heat follows the perturbed field lines to the limiter, generating heat load patterns which reflect the geometry of a magnetic island-limiter intersection. A strong spatial modulation of the electron density in the scrape-off-layer also reflects the helical mode structure.",

keywords = "Langmuir probe, TEXT, ergodic magnetic limiter",

author = "deGrassie, \{J. S.\} and N. Ohyabu and Brooks, \{N. H.\} and Gentle, \{K. W.\} and R. Bengston and R. Bravenec and W. Hodge and T. Kochanski and K. Nelin and P. Phillips and T. Price and B. Richards and C. Ritz and W. Rowan and Kim, \{S. B.\} and C. Klepper and S. Levinson and K. Leung and J. Porter and J. Snipes",

year = "1984",

month = dec,

doi = "10.1016/0022-3115(84)90364-7",

language = "American English",

volume = "128-129",

pages = "266--270",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier B.V.",

number = "C",

}

deGrassie, JS, Ohyabu, N, Brooks, NH, Gentle, KW, Bengston, R, Bravenec, R, Hodge, W, Kochanski, T, Nelin, K, Phillips, P, Price, T, Richards, B, Ritz, C, Rowan, W, Kim, SB, Klepper, C, Levinson, S, Leung, K, Porter, J & Snipes, J 1984, 'Ergodic magnetic limiter experiments on TEXT with a 7 3 resonance', Journal of Nuclear Materials, vol. 128-129, no. C, pp. 266-270. https://doi.org/10.1016/0022-3115(84)90364-7

TY - JOUR

T1 - Ergodic magnetic limiter experiments on TEXT with a 7 3 resonance

AU - deGrassie, J. S.

AU - Ohyabu, N.

AU - Brooks, N. H.

AU - Gentle, K. W.

AU - Bengston, R.

AU - Bravenec, R.

AU - Hodge, W.

AU - Kochanski, T.

AU - Nelin, K.

AU - Phillips, P.

AU - Price, T.

AU - Richards, B.

AU - Ritz, C.

AU - Rowan, W.

AU - Kim, S. B.

AU - Klepper, C.

AU - Levinson, S.

AU - Leung, K.

AU - Porter, J.

AU - Snipes, J.

PY - 1984/12

Y1 - 1984/12

N2 - The ergodic magnetic limiter coils on TEXT have been reconfigured to produce the primary helical perturbation resonance at m = 7 n = 3. The experiments continue to demonstrate that the weak resonant perturbations modify the edge conditions in keeping with model predictions. We observe a reduction in the intrinsic impurity levels accompanying the helical current pulse, presumably the result of a reduction in the electron temperature in the edge. Heat follows the perturbed field lines to the limiter, generating heat load patterns which reflect the geometry of a magnetic island-limiter intersection. A strong spatial modulation of the electron density in the scrape-off-layer also reflects the helical mode structure.

AB - The ergodic magnetic limiter coils on TEXT have been reconfigured to produce the primary helical perturbation resonance at m = 7 n = 3. The experiments continue to demonstrate that the weak resonant perturbations modify the edge conditions in keeping with model predictions. We observe a reduction in the intrinsic impurity levels accompanying the helical current pulse, presumably the result of a reduction in the electron temperature in the edge. Heat follows the perturbed field lines to the limiter, generating heat load patterns which reflect the geometry of a magnetic island-limiter intersection. A strong spatial modulation of the electron density in the scrape-off-layer also reflects the helical mode structure.

KW - Langmuir probe

KW - TEXT

KW - ergodic magnetic limiter

UR - https://www.scopus.com/pages/publications/0021608099

UR - https://www.scopus.com/pages/publications/0021608099#tab=citedBy

U2 - 10.1016/0022-3115(84)90364-7

DO - 10.1016/0022-3115(84)90364-7

M3 - Article

SN - 0022-3115

VL - 128-129

SP - 266

EP - 270

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

IS - C

ER -

Ergodic magnetic limiter experiments on TEXT with a 7 3 resonance

Abstract

ASJC Scopus subject areas

Keywords

Access to Document

Other files and links

Fingerprint

Cite this