TFTR confinement results

M. G. Bell; V. Arunsalam; M. Bitter; W. R. Blanchard; F. Boody; N. Bretz; R. Budny; C. E. Bush; J. D. Callen; J. L. Cecchi; Samuel A. Cohen; R. J. Colchin; S. K. Combs; J. Coonrod; S. L. Davis; D. Dimock; H. F. Dylla; P. C. Efthimion; A. C. England; H. P. Eubank; R. Fonck; E. Fredrickson; L. R. Grisham; Robert James Goldston; B. Grek; R. J. Hawryluk; W. Heidbrink; H. Hendel; K. W. Hill; E. Hinnov; S. Hiroe; R. Hulse; H. Hsuan; D. Johnson; L. C. Johnson; R. Kaita; R. Kamperschroer; S. M. Kaye; S. Kilpatrick; H. Kugel; P. H. LaMarche; R. Little; D. M. Manos; D. Mansfield; M. McCarthy; R. T. McCann; D. C. McCune; K. McGuire; D. M. Meade; S. S. Medley; S. L. Milora; D. R. Mikkelsen; W. Morris; D. Mueller; E. Nieschmidt; D. K. Owens; V. K. Pare; H. Park; B. Prichard; A. Ramsey; M. H. Redi; A. L. Roquemore; N. R. Sauthoff; J. Schivell; G. L. Schmidt; S. D. Scott; S. Sesnic; M. Shimada; J. E. Simpkins; J. Sinnis; F. Stauffer; B. Stratton; G. D. Tait; G. Taylor; H. H. Towner; M. Ulrickson; S. Von Goeler; R. Wieland; J. B. Wilgen; M. Williams; K. L. Wong; S. Yoshikawa; K. M. Young; M. C. Zarnstorff; S. Zweben

doi:10.1088/0741-3335/28/9A/011

TFTR confinement results

M. G. Bell, V. Arunsalam, M. Bitter, W. R. Blanchard, F. Boody, N. Bretz, R. Budny, C. E. Bush, J. D. Callen, J. L. Cecchi, Samuel A. Cohen, R. J. Colchin, S. K. Combs, J. Coonrod, S. L. Davis, D. Dimock, H. F. Dylla, P. C. Efthimion, A. C. England, H. P. EubankR. Fonck, E. Fredrickson, L. R. Grisham, Robert James Goldston, B. Grek, R. J. Hawryluk, W. Heidbrink, H. Hendel, K. W. Hill, E. Hinnov, S. Hiroe, R. Hulse, H. Hsuan, D. Johnson, L. C. Johnson, R. Kaita, R. Kamperschroer, S. M. Kaye, S. Kilpatrick, H. Kugel, P. H. LaMarche, R. Little, D. M. Manos, D. Mansfield, M. McCarthy, R. T. McCann, D. C. McCune, K. McGuire, D. M. Meade, S. S. Medley, S. L. Milora, D. R. Mikkelsen, W. Morris, D. Mueller, E. Nieschmidt, D. K. Owens, V. K. Pare, H. Park, B. Prichard, A. Ramsey, M. H. Redi, A. L. Roquemore, N. R. Sauthoff, J. Schivell, G. L. Schmidt, S. D. Scott, S. Sesnic, M. Shimada, J. E. Simpkins, J. Sinnis, F. Stauffer, B. Stratton, G. D. Tait, G. Taylor, H. H. Towner, M. Ulrickson, S. Von Goeler, R. Wieland, J. B. Wilgen, M. Williams, K. L. Wong, S. Yoshikawa, K. M. Young, M. C. Zarnstorff, S. Zweben

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Abstract

The characteristics of plasma operation on the axisymmetric inner toroidal limiter in TFTR are described. After conditioning, plasmas with low metal content and low z_eff are obtained with this limiter. There is no substantial increase in z_eff with total input power during neutral beam injection. Compared to operation on the outer blade limiter, additional gas is required to fuel plasmas on the inner limiter. Injection of D pellets increased the plasma density substantially and produced energy confinement times up to 0.5 s in ohmically heated plasmas. The four neutral beam lines have injected up to 13.5 MW total power into the plasma for 0.5 s with up to 90 kV accelerating voltage. The scaling of the plasma stored energy was studied as a function of the input power, plasma current and plasma density. In the range 1.4 to 2.2 MA, the overall and incremental confinement times for both the total and thermal stored energies increase with plasma current at fixed density. There appears to be a weak negative scaling of the total stored energy with density at high injection power.

Original language	English (US)
Article number	011
Pages (from-to)	1329-1340
Number of pages	12
Journal	Plasma Physics and Controlled Fusion
Volume	28
Issue number	9 A
DOIs	https://doi.org/10.1088/0741-3335/28/9A/011
State	Published - 1986

All Science Journal Classification (ASJC) codes

Nuclear Energy and Engineering
Condensed Matter Physics

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10.1088/0741-3335/28/9A/011

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Bell, M. G., Arunsalam, V., Bitter, M., Blanchard, W. R., Boody, F., Bretz, N., Budny, R., Bush, C. E., Callen, J. D., Cecchi, J. L., Cohen, S. A., Colchin, R. J., Combs, S. K., Coonrod, J., Davis, S. L., Dimock, D., Dylla, H. F., Efthimion, P. C., England, A. C., ... Zweben, S. (1986). TFTR confinement results. Plasma Physics and Controlled Fusion, 28(9 A), 1329-1340. Article 011. https://doi.org/10.1088/0741-3335/28/9A/011

@article{3fe811a13a4f43a788ddd0fac7898830,

title = "TFTR confinement results",

abstract = "The characteristics of plasma operation on the axisymmetric inner toroidal limiter in TFTR are described. After conditioning, plasmas with low metal content and low zeff are obtained with this limiter. There is no substantial increase in zeff with total input power during neutral beam injection. Compared to operation on the outer blade limiter, additional gas is required to fuel plasmas on the inner limiter. Injection of D pellets increased the plasma density substantially and produced energy confinement times up to 0.5 s in ohmically heated plasmas. The four neutral beam lines have injected up to 13.5 MW total power into the plasma for 0.5 s with up to 90 kV accelerating voltage. The scaling of the plasma stored energy was studied as a function of the input power, plasma current and plasma density. In the range 1.4 to 2.2 MA, the overall and incremental confinement times for both the total and thermal stored energies increase with plasma current at fixed density. There appears to be a weak negative scaling of the total stored energy with density at high injection power.",

author = "Bell, {M. G.} and V. Arunsalam and M. Bitter and Blanchard, {W. R.} and F. Boody and N. Bretz and R. Budny and Bush, {C. E.} and Callen, {J. D.} and Cecchi, {J. L.} and Cohen, {Samuel A.} and Colchin, {R. J.} and Combs, {S. K.} and J. Coonrod and Davis, {S. L.} and D. Dimock and Dylla, {H. F.} and Efthimion, {P. C.} and England, {A. C.} and Eubank, {H. P.} and R. Fonck and E. Fredrickson and Grisham, {L. R.} and Goldston, {Robert James} and B. Grek and Hawryluk, {R. J.} and W. Heidbrink and H. Hendel and Hill, {K. W.} and E. Hinnov and S. Hiroe and R. Hulse and H. Hsuan and D. Johnson and Johnson, {L. C.} and R. Kaita and R. Kamperschroer and Kaye, {S. M.} and S. Kilpatrick and H. Kugel and LaMarche, {P. H.} and R. Little and Manos, {D. M.} and D. Mansfield and M. McCarthy and McCann, {R. T.} and McCune, {D. C.} and K. McGuire and Meade, {D. M.} and Medley, {S. S.} and Milora, {S. L.} and Mikkelsen, {D. R.} and W. Morris and D. Mueller and E. Nieschmidt and Owens, {D. K.} and Pare, {V. K.} and H. Park and B. Prichard and A. Ramsey and Redi, {M. H.} and Roquemore, {A. L.} and Sauthoff, {N. R.} and J. Schivell and Schmidt, {G. L.} and Scott, {S. D.} and S. Sesnic and M. Shimada and Simpkins, {J. E.} and J. Sinnis and F. Stauffer and B. Stratton and Tait, {G. D.} and G. Taylor and Towner, {H. H.} and M. Ulrickson and {Von Goeler}, S. and R. Wieland and Wilgen, {J. B.} and M. Williams and Wong, {K. L.} and S. Yoshikawa and Young, {K. M.} and Zarnstorff, {M. C.} and S. Zweben",

year = "1986",

doi = "10.1088/0741-3335/28/9A/011",

language = "English (US)",

volume = "28",

pages = "1329--1340",

journal = "Plasma Physics and Controlled Fusion",

issn = "0741-3335",

publisher = "IOP Publishing Ltd.",

number = "9 A",

}

Bell, MG, Arunsalam, V, Bitter, M, Blanchard, WR, Boody, F, Bretz, N, Budny, R, Bush, CE, Callen, JD, Cecchi, JL, Cohen, SA, Colchin, RJ, Combs, SK, Coonrod, J, Davis, SL, Dimock, D, Dylla, HF, Efthimion, PC, England, AC, Eubank, HP, Fonck, R, Fredrickson, E, Grisham, LR, Goldston, RJ, Grek, B, Hawryluk, RJ, Heidbrink, W, Hendel, H, Hill, KW, Hinnov, E, Hiroe, S, Hulse, R, Hsuan, H, Johnson, D, Johnson, LC, Kaita, R, Kamperschroer, R, Kaye, SM, Kilpatrick, S, Kugel, H, LaMarche, PH, Little, R, Manos, DM, Mansfield, D, McCarthy, M, McCann, RT, McCune, DC, McGuire, K, Meade, DM, Medley, SS, Milora, SL, Mikkelsen, DR, Morris, W, Mueller, D, Nieschmidt, E, Owens, DK, Pare, VK, Park, H, Prichard, B, Ramsey, A, Redi, MH, Roquemore, AL, Sauthoff, NR, Schivell, J, Schmidt, GL, Scott, SD, Sesnic, S, Shimada, M, Simpkins, JE, Sinnis, J, Stauffer, F, Stratton, B, Tait, GD, Taylor, G, Towner, HH, Ulrickson, M, Von Goeler, S, Wieland, R, Wilgen, JB, Williams, M, Wong, KL, Yoshikawa, S, Young, KM, Zarnstorff, MC & Zweben, S 1986, 'TFTR confinement results', Plasma Physics and Controlled Fusion, vol. 28, no. 9 A, 011, pp. 1329-1340. https://doi.org/10.1088/0741-3335/28/9A/011

TY - JOUR

T1 - TFTR confinement results

AU - Bell, M. G.

AU - Arunsalam, V.

AU - Bitter, M.

AU - Blanchard, W. R.

AU - Boody, F.

AU - Bretz, N.

AU - Budny, R.

AU - Bush, C. E.

AU - Callen, J. D.

AU - Cecchi, J. L.

AU - Cohen, Samuel A.

AU - Colchin, R. J.

AU - Combs, S. K.

AU - Coonrod, J.

AU - Davis, S. L.

AU - Dimock, D.

AU - Dylla, H. F.

AU - Efthimion, P. C.

AU - England, A. C.

AU - Eubank, H. P.

AU - Fonck, R.

AU - Fredrickson, E.

AU - Grisham, L. R.

AU - Goldston, Robert James

AU - Grek, B.

AU - Hawryluk, R. J.

AU - Heidbrink, W.

AU - Hendel, H.

AU - Hill, K. W.

AU - Hinnov, E.

AU - Hiroe, S.

AU - Hulse, R.

AU - Hsuan, H.

AU - Johnson, D.

AU - Johnson, L. C.

AU - Kaita, R.

AU - Kamperschroer, R.

AU - Kaye, S. M.

AU - Kilpatrick, S.

AU - Kugel, H.

AU - LaMarche, P. H.

AU - Little, R.

AU - Manos, D. M.

AU - Mansfield, D.

AU - McCarthy, M.

AU - McCann, R. T.

AU - McCune, D. C.

AU - McGuire, K.

AU - Meade, D. M.

AU - Medley, S. S.

AU - Milora, S. L.

AU - Mikkelsen, D. R.

AU - Morris, W.

AU - Mueller, D.

AU - Nieschmidt, E.

AU - Owens, D. K.

AU - Pare, V. K.

AU - Park, H.

AU - Prichard, B.

AU - Ramsey, A.

AU - Redi, M. H.

AU - Roquemore, A. L.

AU - Sauthoff, N. R.

AU - Schivell, J.

AU - Schmidt, G. L.

AU - Scott, S. D.

AU - Sesnic, S.

AU - Shimada, M.

AU - Simpkins, J. E.

AU - Sinnis, J.

AU - Stauffer, F.

AU - Stratton, B.

AU - Tait, G. D.

AU - Taylor, G.

AU - Towner, H. H.

AU - Ulrickson, M.

AU - Von Goeler, S.

AU - Wieland, R.

AU - Wilgen, J. B.

AU - Williams, M.

AU - Wong, K. L.

AU - Yoshikawa, S.

AU - Young, K. M.

AU - Zarnstorff, M. C.

AU - Zweben, S.

PY - 1986

Y1 - 1986

N2 - The characteristics of plasma operation on the axisymmetric inner toroidal limiter in TFTR are described. After conditioning, plasmas with low metal content and low zeff are obtained with this limiter. There is no substantial increase in zeff with total input power during neutral beam injection. Compared to operation on the outer blade limiter, additional gas is required to fuel plasmas on the inner limiter. Injection of D pellets increased the plasma density substantially and produced energy confinement times up to 0.5 s in ohmically heated plasmas. The four neutral beam lines have injected up to 13.5 MW total power into the plasma for 0.5 s with up to 90 kV accelerating voltage. The scaling of the plasma stored energy was studied as a function of the input power, plasma current and plasma density. In the range 1.4 to 2.2 MA, the overall and incremental confinement times for both the total and thermal stored energies increase with plasma current at fixed density. There appears to be a weak negative scaling of the total stored energy with density at high injection power.

AB - The characteristics of plasma operation on the axisymmetric inner toroidal limiter in TFTR are described. After conditioning, plasmas with low metal content and low zeff are obtained with this limiter. There is no substantial increase in zeff with total input power during neutral beam injection. Compared to operation on the outer blade limiter, additional gas is required to fuel plasmas on the inner limiter. Injection of D pellets increased the plasma density substantially and produced energy confinement times up to 0.5 s in ohmically heated plasmas. The four neutral beam lines have injected up to 13.5 MW total power into the plasma for 0.5 s with up to 90 kV accelerating voltage. The scaling of the plasma stored energy was studied as a function of the input power, plasma current and plasma density. In the range 1.4 to 2.2 MA, the overall and incremental confinement times for both the total and thermal stored energies increase with plasma current at fixed density. There appears to be a weak negative scaling of the total stored energy with density at high injection power.

UR - http://www.scopus.com/inward/record.url?scp=42149196943&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=42149196943&partnerID=8YFLogxK

U2 - 10.1088/0741-3335/28/9A/011

DO - 10.1088/0741-3335/28/9A/011

M3 - Article

AN - SCOPUS:42149196943

SN - 0741-3335

VL - 28

SP - 1329

EP - 1340

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

IS - 9 A

M1 - 011

ER -

TFTR confinement results

Abstract

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