Blob sizes and velocities in the Alcator C-Mod scrape-off layer

R. Kube; O.E. Garcia; B. LaBombard; Jens Madsen; J.L. Terry; S.J. Zweben

Blob sizes and velocities in the Alcator C-Mod scrape-off layer

R. Kube
, O.E. Garcia
, B. LaBombard
, Jens Madsen
, J.L. Terry
, S.J. Zweben

Research output: Contribution to conference › Poster › Research › peer-review

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Abstract

A new blob-tracking algorithm for the GPI diagnostic installed in the outboard-midplane of Alcator C-Mod is developed. I t tracks large-amplitude fluctuations propagating through the scrape-off layer and calculates blob sizes and velocities. We compare the results of this method to a blob velocity scaling from a simple blob-model for sheath-connected blobs. We further present initial results from a fully three-dimensional blob model that features plasma resistivity as a free parameter.

Original language	English
Publication date	2012
Number of pages	1
Publication status	Published - 2012
Event	20th International Conference on Plasma Surface Interactions - Aachen, Germany Duration: 21 May 2012 → 25 May 2012

Conference

Conference	20th International Conference on Plasma Surface Interactions
Country/Territory	Germany
City	Aachen
Period	21/05/2012 → 25/05/2012

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title = "Blob sizes and velocities in the Alcator C-Mod scrape-off layer",

abstract = "A new blob-tracking algorithm for the GPI diagnostic installed in the outboard-midplane of Alcator C-Mod is developed. I t tracks large-amplitude fluctuations propagating through the scrape-off layer and calculates blob sizes and velocities. We compare the results of this method to a blob velocity scaling from a simple blob-model for sheath-connected blobs. We further present initial results from a fully three-dimensional blob model that features plasma resistivity as a free parameter.",

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T1 - Blob sizes and velocities in the Alcator C-Mod scrape-off layer

AU - Kube, R.

AU - Garcia, O.E.

AU - LaBombard, B.

AU - Madsen, Jens

AU - Terry, J.L.

AU - Zweben, S.J.

PY - 2012

Y1 - 2012

N2 - A new blob-tracking algorithm for the GPI diagnostic installed in the outboard-midplane of Alcator C-Mod is developed. I t tracks large-amplitude fluctuations propagating through the scrape-off layer and calculates blob sizes and velocities. We compare the results of this method to a blob velocity scaling from a simple blob-model for sheath-connected blobs. We further present initial results from a fully three-dimensional blob model that features plasma resistivity as a free parameter.

AB - A new blob-tracking algorithm for the GPI diagnostic installed in the outboard-midplane of Alcator C-Mod is developed. I t tracks large-amplitude fluctuations propagating through the scrape-off layer and calculates blob sizes and velocities. We compare the results of this method to a blob velocity scaling from a simple blob-model for sheath-connected blobs. We further present initial results from a fully three-dimensional blob model that features plasma resistivity as a free parameter.

M3 - Poster

T2 - 20th International Conference on Plasma Surface Interactions

Y2 - 21 May 2012 through 25 May 2012

ER -

Blob sizes and velocities in the Alcator C-Mod scrape-off layer

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Conference

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