High energy and particle confinement times in PDX scoop discharges

R. Budny; K. Bol; R. Fonck; Robert James Goldston; B. Grek; W. Heidbrink; D. Heifetz; D. Johnson; R. Kaita; S. Kaye; H. Kugel; D. Manos; D. Mccune; D. Mikkelsen; K. Owens; D. Post; M. Redi; C. Singer; J. Strachan

doi:10.1016/0022-3115(84)90388-X

High energy and particle confinement times in PDX scoop discharges

R. Budny, K. Bol, R. Fonck, Robert James Goldston, B. Grek, W. Heidbrink, D. Heifetz, D. Johnson, R. Kaita, S. Kaye, H. Kugel, D. Manos, D. Mccune, D. Mikkelsen, K. Owens, D. Post, M. Redi, C. Singer, J. Strachan

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

3 Scopus citations

Abstract

Scoop limited discharges in PDX with neutral beam heating achieved energy and particle confinement times higher than those inferred from similar poloidal rail limiter discharges. We present transport simulations using TRANSP and BALDUR and neutral simulations using DEGAS. Large neutral densities and ionization rates localized near the scoop are inferred. Thermal neutral ionization increases the edge electron density substantially, resulting in a flattened density profile. Fueling from the scoop limiter is deeper than from simple limiters.

Original language	English (US)
Pages (from-to)	425-429
Number of pages	5
Journal	Journal of Nuclear Materials
Volume	128-129
Issue number	C
DOIs	https://doi.org/10.1016/0022-3115(84)90388-X
State	Published - Dec 1984

All Science Journal Classification (ASJC) codes

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

Keywords

energy confinement
particle confinement
pump limiter
scoop limiter
transport simulation

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10.1016/0022-3115(84)90388-X

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Budny, R., Bol, K., Fonck, R., Goldston, R. J., Grek, B., Heidbrink, W., Heifetz, D., Johnson, D., Kaita, R., Kaye, S., Kugel, H., Manos, D., Mccune, D., Mikkelsen, D., Owens, K., Post, D., Redi, M., Singer, C., & Strachan, J. (1984). High energy and particle confinement times in PDX scoop discharges. Journal of Nuclear Materials, 128-129(C), 425-429. https://doi.org/10.1016/0022-3115(84)90388-X

@article{1fa88df0a4754f92a09210d0d5209eca,

title = "High energy and particle confinement times in PDX scoop discharges",

abstract = "Scoop limited discharges in PDX with neutral beam heating achieved energy and particle confinement times higher than those inferred from similar poloidal rail limiter discharges. We present transport simulations using TRANSP and BALDUR and neutral simulations using DEGAS. Large neutral densities and ionization rates localized near the scoop are inferred. Thermal neutral ionization increases the edge electron density substantially, resulting in a flattened density profile. Fueling from the scoop limiter is deeper than from simple limiters.",

keywords = "energy confinement, particle confinement, pump limiter, scoop limiter, transport simulation",

author = "R. Budny and K. Bol and R. Fonck and Goldston, {Robert James} and B. Grek and W. Heidbrink and D. Heifetz and D. Johnson and R. Kaita and S. Kaye and H. Kugel and D. Manos and D. Mccune and D. Mikkelsen and K. Owens and D. Post and M. Redi and C. Singer and J. Strachan",

note = "Funding Information: This work was supportedb y the US Departmento f Energy Contract No. De-AC02-76CHO-3073.",

year = "1984",

month = dec,

doi = "10.1016/0022-3115(84)90388-X",

language = "English (US)",

volume = "128-129",

pages = "425--429",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier",

number = "C",

}

Budny, R, Bol, K, Fonck, R, Goldston, RJ, Grek, B, Heidbrink, W, Heifetz, D, Johnson, D, Kaita, R, Kaye, S, Kugel, H, Manos, D, Mccune, D, Mikkelsen, D, Owens, K, Post, D, Redi, M, Singer, C & Strachan, J 1984, 'High energy and particle confinement times in PDX scoop discharges', Journal of Nuclear Materials, vol. 128-129, no. C, pp. 425-429. https://doi.org/10.1016/0022-3115(84)90388-X

TY - JOUR

T1 - High energy and particle confinement times in PDX scoop discharges

AU - Budny, R.

AU - Bol, K.

AU - Fonck, R.

AU - Goldston, Robert James

AU - Grek, B.

AU - Heidbrink, W.

AU - Heifetz, D.

AU - Johnson, D.

AU - Kaita, R.

AU - Kaye, S.

AU - Kugel, H.

AU - Manos, D.

AU - Mccune, D.

AU - Mikkelsen, D.

AU - Owens, K.

AU - Post, D.

AU - Redi, M.

AU - Singer, C.

AU - Strachan, J.

N1 - Funding Information: This work was supportedb y the US Departmento f Energy Contract No. De-AC02-76CHO-3073.

PY - 1984/12

Y1 - 1984/12

N2 - Scoop limited discharges in PDX with neutral beam heating achieved energy and particle confinement times higher than those inferred from similar poloidal rail limiter discharges. We present transport simulations using TRANSP and BALDUR and neutral simulations using DEGAS. Large neutral densities and ionization rates localized near the scoop are inferred. Thermal neutral ionization increases the edge electron density substantially, resulting in a flattened density profile. Fueling from the scoop limiter is deeper than from simple limiters.

AB - Scoop limited discharges in PDX with neutral beam heating achieved energy and particle confinement times higher than those inferred from similar poloidal rail limiter discharges. We present transport simulations using TRANSP and BALDUR and neutral simulations using DEGAS. Large neutral densities and ionization rates localized near the scoop are inferred. Thermal neutral ionization increases the edge electron density substantially, resulting in a flattened density profile. Fueling from the scoop limiter is deeper than from simple limiters.

KW - energy confinement

KW - particle confinement

KW - pump limiter

KW - scoop limiter

KW - transport simulation

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U2 - 10.1016/0022-3115(84)90388-X

DO - 10.1016/0022-3115(84)90388-X

M3 - Article

AN - SCOPUS:0021607485

SN - 0022-3115

VL - 128-129

SP - 425

EP - 429

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

IS - C

ER -

High energy and particle confinement times in PDX scoop discharges

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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