Power balance and scaling of the radiated power in the divertor and main plasma of Alcator C-Mod

J. A. Goetz; B. Lipschultz; M. A. Graf; C. Kurz; R. Nachtrieb; J. A. Snipes; J. L. Terry

doi:10.1016/0022-3115(94)00456-0

Power balance and scaling of the radiated power in the divertor and main plasma of Alcator C-Mod

J. A. Goetz, B. Lipschultz, M. A. Graf, C. Kurz, R. Nachtrieb, J. A. Snipes, J. L. Terry

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

27 Scopus citations

Abstract

Measurements have been made of the radiation in the main plasma and divertor of Alcator C-Mod using bolometer arrays. It is found that the power radiated from the main plasma is P_rad,main/P_ohmic ≈ 0.3–0.4 over the range 0.2 × 10²⁰ ≤ n̄_e ≤ 2.5 × 10²⁰m⁻³. There is significant radiated power coming from the divertor region; P_rad,divertor/P_ohmic ≈ 0.4. The radiated power in the main plasma and divertor scales linearly with density. When divertor detachment occurs, the power flow to the divertor plates in the region near the strike points is suddenly reduced, the fraction of the input power radiated from the main plasma and divertor increases, and the radiation in the divertor region is spatially rearranged.

Original language	English (US)
Pages (from-to)	971-975
Number of pages	5
Journal	Journal of Nuclear Materials
Volume	220-222
DOIs	https://doi.org/10.1016/0022-3115(94)00456-0
State	Published - 1995
Externally published	Yes

All Science Journal Classification (ASJC) codes

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

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10.1016/0022-3115(94)00456-0

Cite this

@article{8f252204e56449b39472851ed7cdd4fe,

title = "Power balance and scaling of the radiated power in the divertor and main plasma of Alcator C-Mod",

abstract = "Measurements have been made of the radiation in the main plasma and divertor of Alcator C-Mod using bolometer arrays. It is found that the power radiated from the main plasma is Prad,main/Pohmic ≈ 0.3–0.4 over the range 0.2 × 1020 ≤ {\=n}e ≤ 2.5 × 1020m−3. There is significant radiated power coming from the divertor region; Prad,divertor/Pohmic ≈ 0.4. The radiated power in the main plasma and divertor scales linearly with density. When divertor detachment occurs, the power flow to the divertor plates in the region near the strike points is suddenly reduced, the fraction of the input power radiated from the main plasma and divertor increases, and the radiation in the divertor region is spatially rearranged.",

author = "Goetz, \{J. A.\} and B. Lipschultz and Graf, \{M. A.\} and C. Kurz and R. Nachtrieb and Snipes, \{J. A.\} and Terry, \{J. L.\}",

year = "1995",

doi = "10.1016/0022-3115(94)00456-0",

language = "English (US)",

volume = "220-222",

pages = "971--975",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Power balance and scaling of the radiated power in the divertor and main plasma of Alcator C-Mod

AU - Goetz, J. A.

AU - Lipschultz, B.

AU - Graf, M. A.

AU - Kurz, C.

AU - Nachtrieb, R.

AU - Snipes, J. A.

AU - Terry, J. L.

PY - 1995

Y1 - 1995

N2 - Measurements have been made of the radiation in the main plasma and divertor of Alcator C-Mod using bolometer arrays. It is found that the power radiated from the main plasma is Prad,main/Pohmic ≈ 0.3–0.4 over the range 0.2 × 1020 ≤ n̄e ≤ 2.5 × 1020m−3. There is significant radiated power coming from the divertor region; Prad,divertor/Pohmic ≈ 0.4. The radiated power in the main plasma and divertor scales linearly with density. When divertor detachment occurs, the power flow to the divertor plates in the region near the strike points is suddenly reduced, the fraction of the input power radiated from the main plasma and divertor increases, and the radiation in the divertor region is spatially rearranged.

AB - Measurements have been made of the radiation in the main plasma and divertor of Alcator C-Mod using bolometer arrays. It is found that the power radiated from the main plasma is Prad,main/Pohmic ≈ 0.3–0.4 over the range 0.2 × 1020 ≤ n̄e ≤ 2.5 × 1020m−3. There is significant radiated power coming from the divertor region; Prad,divertor/Pohmic ≈ 0.4. The radiated power in the main plasma and divertor scales linearly with density. When divertor detachment occurs, the power flow to the divertor plates in the region near the strike points is suddenly reduced, the fraction of the input power radiated from the main plasma and divertor increases, and the radiation in the divertor region is spatially rearranged.

UR - https://www.scopus.com/pages/publications/0004408212

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U2 - 10.1016/0022-3115(94)00456-0

DO - 10.1016/0022-3115(94)00456-0

M3 - Article

AN - SCOPUS:0004408212

SN - 0022-3115

VL - 220-222

SP - 971

EP - 975

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

ER -

Power balance and scaling of the radiated power in the divertor and main plasma of Alcator C-Mod

Abstract

All Science Journal Classification (ASJC) codes

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