Application of divertor cryopumping to H-mode density control in DIII-D

M. A. Mahdavi; J. R. Ferron; A. W. Hyatt; R. J. La Haye; G. L. Laughon; M. Leh; K. M. Schaubel; M. J. Schaffer; D. P. Schissel; J. T. Scoville; J. P. Smith; R. D. Stambaugh; R. Maingi; M. M. Menon; P. K. Mioduszewski; M. Wade

Application of divertor cryopumping to H-mode density control in DIII-D

M. A. Mahdavi
, J. R. Ferron
, A. W. Hyatt
, R. J. La Haye
, G. L. Laughon
, M. Leh
, K. M. Schaubel
, M. J. Schaffer
, D. P. Schissel
, J. T. Scoville
, J. P. Smith
, R. D. Stambaugh
, R. Maingi
, M. M. Menon
, P. K. Mioduszewski
, M. Wade

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

In this paper we describe the method and the results of experiments where a unique in-vessel cryopump-baffle system was used to control density of H-mode plasmas. We were able to independently regulate current and density of ELMing H-mode plasmas, each over a range of factor two, and measure the H-mode confinement scaling with plasma density and current. With a modest pumping speed of ≈40 kℓ/s, particle exhaust rates as high as 2 × 10²² atom/s^-1 have been observed.

Original language	English
Title of host publication	Proceedings - Symposium on Fusion Engineering
Publisher	Publ by IEEE
Pages	597-603
Number of pages	7
ISBN (Print)	0780314131
State	Published - 1993
Externally published	Yes
Event	Proceedings of the 15th IEEE/NPSS Symposium on Fusion Engineering. Part 2 (of 2) - Hyannis, MA, USA Duration: Oct 12 1993 → Oct 12 1993

Publication series

Name	Proceedings - Symposium on Fusion Engineering
Volume	2

Conference

Conference	Proceedings of the 15th IEEE/NPSS Symposium on Fusion Engineering. Part 2 (of 2)
City	Hyannis, MA, USA
Period	10/12/93 → 10/12/93

Cite this

Mahdavi, M. A., Ferron, J. R., Hyatt, A. W., La Haye, R. J., Laughon, G. L., Leh, M., Schaubel, K. M., Schaffer, M. J., Schissel, D. P., Scoville, J. T., Smith, J. P., Stambaugh, R. D., Maingi, R., Menon, M. M., Mioduszewski, P. K., & Wade, M. (1993). Application of divertor cryopumping to H-mode density control in DIII-D. In Proceedings - Symposium on Fusion Engineering (pp. 597-603). (Proceedings - Symposium on Fusion Engineering; Vol. 2). Publ by IEEE.

@inproceedings{5be98bdc6e2a4fd884d13fc324635b59,

title = "Application of divertor cryopumping to H-mode density control in DIII-D",

abstract = "In this paper we describe the method and the results of experiments where a unique in-vessel cryopump-baffle system was used to control density of H-mode plasmas. We were able to independently regulate current and density of ELMing H-mode plasmas, each over a range of factor two, and measure the H-mode confinement scaling with plasma density and current. With a modest pumping speed of ≈40 kℓ/s, particle exhaust rates as high as 2 × 1022 atom/s-1 have been observed.",

author = "Mahdavi, \{M. A.\} and Ferron, \{J. R.\} and Hyatt, \{A. W.\} and \{La Haye\}, \{R. J.\} and Laughon, \{G. L.\} and M. Leh and Schaubel, \{K. M.\} and Schaffer, \{M. J.\} and Schissel, \{D. P.\} and Scoville, \{J. T.\} and Smith, \{J. P.\} and Stambaugh, \{R. D.\} and R. Maingi and Menon, \{M. M.\} and Mioduszewski, \{P. K.\} and M. Wade",

year = "1993",

language = "English",

isbn = "0780314131",

series = "Proceedings - Symposium on Fusion Engineering",

publisher = "Publ by IEEE",

pages = "597--603",

booktitle = "Proceedings - Symposium on Fusion Engineering",

note = "Proceedings of the 15th IEEE/NPSS Symposium on Fusion Engineering. Part 2 (of 2) ; Conference date: 12-10-1993 Through 12-10-1993",

}

Mahdavi, MA, Ferron, JR, Hyatt, AW, La Haye, RJ, Laughon, GL, Leh, M, Schaubel, KM, Schaffer, MJ, Schissel, DP, Scoville, JT, Smith, JP, Stambaugh, RD, Maingi, R, Menon, MM, Mioduszewski, PK & Wade, M 1993, Application of divertor cryopumping to H-mode density control in DIII-D. in Proceedings - Symposium on Fusion Engineering. Proceedings - Symposium on Fusion Engineering, vol. 2, Publ by IEEE, pp. 597-603, Proceedings of the 15th IEEE/NPSS Symposium on Fusion Engineering. Part 2 (of 2), Hyannis, MA, USA, 10/12/93.

TY - GEN

T1 - Application of divertor cryopumping to H-mode density control in DIII-D

AU - Mahdavi, M. A.

AU - Ferron, J. R.

AU - Hyatt, A. W.

AU - La Haye, R. J.

AU - Laughon, G. L.

AU - Leh, M.

AU - Schaubel, K. M.

AU - Schaffer, M. J.

AU - Schissel, D. P.

AU - Scoville, J. T.

AU - Smith, J. P.

AU - Stambaugh, R. D.

AU - Maingi, R.

AU - Menon, M. M.

AU - Mioduszewski, P. K.

AU - Wade, M.

PY - 1993

Y1 - 1993

N2 - In this paper we describe the method and the results of experiments where a unique in-vessel cryopump-baffle system was used to control density of H-mode plasmas. We were able to independently regulate current and density of ELMing H-mode plasmas, each over a range of factor two, and measure the H-mode confinement scaling with plasma density and current. With a modest pumping speed of ≈40 kℓ/s, particle exhaust rates as high as 2 × 1022 atom/s-1 have been observed.

AB - In this paper we describe the method and the results of experiments where a unique in-vessel cryopump-baffle system was used to control density of H-mode plasmas. We were able to independently regulate current and density of ELMing H-mode plasmas, each over a range of factor two, and measure the H-mode confinement scaling with plasma density and current. With a modest pumping speed of ≈40 kℓ/s, particle exhaust rates as high as 2 × 1022 atom/s-1 have been observed.

UR - https://www.scopus.com/pages/publications/0027709935

M3 - Conference contribution

AN - SCOPUS:0027709935

SN - 0780314131

T3 - Proceedings - Symposium on Fusion Engineering

SP - 597

EP - 603

BT - Proceedings - Symposium on Fusion Engineering

PB - Publ by IEEE

T2 - Proceedings of the 15th IEEE/NPSS Symposium on Fusion Engineering. Part 2 (of 2)

Y2 - 12 October 1993 through 12 October 1993

ER -

Application of divertor cryopumping to H-mode density control in DIII-D

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