Helium exhaust and transport studies with the ALT-II pump limiter in the TEXTOR tokamak

D. L. Hillis; K. H. Finken; J. T. Hogan; K. H. Dippel; R. A. Moyer; A. Pospieszczyk; D. Rusb̈ldt; K. Akaishi; R. W. Conn; H. Euringer; D. S. Gray; L. D. Horton; R. A. Hulse; R. C. Isler; C. C. Klepper; P. K. Mioduszewski; A. Miyahara; G. H. Wolf

doi:10.1103/PhysRevLett.65.2382

Helium exhaust and transport studies with the ALT-II pump limiter in the TEXTOR tokamak

D. L. Hillis, K. H. Finken, J. T. Hogan, K. H. Dippel, R. A. Moyer, A. Pospieszczyk, D. Rusb̈ldt, K. Akaishi, R. W. Conn, H. Euringer, D. S. Gray, L. D. Horton, R. A. Hulse, R. C. Isler, C. C. Klepper, P. K. Mioduszewski, A. Miyahara, G. H. Wolf

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Abstract

The first encouraging experiments demonstrating direct, explicit control of the He2+ density in a tokamak plasma have been performed in the TEXTOR tokamak with the Advanced Limiter Test-II pump limiter. Helium is injected in a short gas puff from the outside of the plasma, is observed to reach the plasma core, and then is readily removed from the plasma. An exhaust efficiency of 8% is obtained. Active charge-exchange spectroscopy is used to study the exhaust and transport of He2+ within the plasma, and the density evolution is modeled with a diffusive-convective transport code.

Original language	English
Pages (from-to)	2382-2385
Number of pages	4
Journal	Physical Review Letters
Volume	65
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevLett.65.2382
State	Published - 1990

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Hillis, D. L., Finken, K. H., Hogan, J. T., Dippel, K. H., Moyer, R. A., Pospieszczyk, A., Rusb̈ldt, D., Akaishi, K., Conn, R. W., Euringer, H., Gray, D. S., Horton, L. D., Hulse, R. A., Isler, R. C., Klepper, C. C., Mioduszewski, P. K., Miyahara, A., & Wolf, G. H. (1990). Helium exhaust and transport studies with the ALT-II pump limiter in the TEXTOR tokamak. Physical Review Letters, 65(19), 2382-2385. https://doi.org/10.1103/PhysRevLett.65.2382

@article{e4e25414668942bb8f1196eacf9807ef,

title = "Helium exhaust and transport studies with the ALT-II pump limiter in the TEXTOR tokamak",

abstract = "The first encouraging experiments demonstrating direct, explicit control of the He2+ density in a tokamak plasma have been performed in the TEXTOR tokamak with the Advanced Limiter Test-II pump limiter. Helium is injected in a short gas puff from the outside of the plasma, is observed to reach the plasma core, and then is readily removed from the plasma. An exhaust efficiency of 8% is obtained. Active charge-exchange spectroscopy is used to study the exhaust and transport of He2+ within the plasma, and the density evolution is modeled with a diffusive-convective transport code.",

author = "Hillis, {D. L.} and Finken, {K. H.} and Hogan, {J. T.} and Dippel, {K. H.} and Moyer, {R. A.} and A. Pospieszczyk and D. Rus{\"b}ldt and K. Akaishi and Conn, {R. W.} and H. Euringer and Gray, {D. S.} and Horton, {L. D.} and Hulse, {R. A.} and Isler, {R. C.} and Klepper, {C. C.} and Mioduszewski, {P. K.} and A. Miyahara and Wolf, {G. H.}",

year = "1990",

doi = "10.1103/PhysRevLett.65.2382",

language = "English",

volume = "65",

pages = "2382--2385",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "19",

}

Hillis, DL, Finken, KH, Hogan, JT, Dippel, KH, Moyer, RA, Pospieszczyk, A, Rusb̈ldt, D, Akaishi, K, Conn, RW, Euringer, H, Gray, DS, Horton, LD, Hulse, RA, Isler, RC, Klepper, CC, Mioduszewski, PK, Miyahara, A & Wolf, GH 1990, 'Helium exhaust and transport studies with the ALT-II pump limiter in the TEXTOR tokamak', Physical Review Letters, vol. 65, no. 19, pp. 2382-2385. https://doi.org/10.1103/PhysRevLett.65.2382

TY - JOUR

T1 - Helium exhaust and transport studies with the ALT-II pump limiter in the TEXTOR tokamak

AU - Hillis, D. L.

AU - Finken, K. H.

AU - Hogan, J. T.

AU - Dippel, K. H.

AU - Moyer, R. A.

AU - Pospieszczyk, A.

AU - Rusb̈ldt, D.

AU - Akaishi, K.

AU - Conn, R. W.

AU - Euringer, H.

AU - Gray, D. S.

AU - Horton, L. D.

AU - Hulse, R. A.

AU - Isler, R. C.

AU - Klepper, C. C.

AU - Mioduszewski, P. K.

AU - Miyahara, A.

AU - Wolf, G. H.

PY - 1990

Y1 - 1990

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AB - The first encouraging experiments demonstrating direct, explicit control of the He2+ density in a tokamak plasma have been performed in the TEXTOR tokamak with the Advanced Limiter Test-II pump limiter. Helium is injected in a short gas puff from the outside of the plasma, is observed to reach the plasma core, and then is readily removed from the plasma. An exhaust efficiency of 8% is obtained. Active charge-exchange spectroscopy is used to study the exhaust and transport of He2+ within the plasma, and the density evolution is modeled with a diffusive-convective transport code.

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DO - 10.1103/PhysRevLett.65.2382

M3 - Article

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VL - 65

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EP - 2385

JO - Physical Review Letters

JF - Physical Review Letters

IS - 19

ER -

Helium exhaust and transport studies with the ALT-II pump limiter in the TEXTOR tokamak

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