Impurity reduction during 'puff and pump' experiments on DIII-D

M. J. Schaffer; D. G. Whyte; N. H. Brooks; J. W. Cuthbertson; J. Kim; S. I. Lippmann; M. A. Mahdavi; R. Maingi; R. D. Wood

doi:10.1088/0029-5515/35/8/I09

Impurity reduction during 'puff and pump' experiments on DIII-D

M. J. Schaffer, D. G. Whyte, N. H. Brooks, J. W. Cuthbertson, J. Kim, S. I. Lippmann, M. A. Mahdavi, R. Maingi, R. D. Wood

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Abstract

Results are presented from an experiment in which a large amount of deuterium gas was continuously puffed at the scrape-off layer and exhausted from the DIII-D pump divertor ('puff and pump' technique). The experiments were conducted with a single null divertor configuration during edge localized mode (ELM)ing H mode. Steady state density conditions were attained during the strong deuterium puff. The deuterium puff reduced the central plasma density of argon, puffed continuously as a trace impurity, by as much as a factor of 20, and the central argon radiated power density by as much as a factor of 10.

Original language	English (US)
Article number	I09
Pages (from-to)	1000-1007
Number of pages	8
Journal	Nuclear Fusion
Volume	35
Issue number	8
DOIs	https://doi.org/10.1088/0029-5515/35/8/I09
State	Published - 1995
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Condensed Matter Physics

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title = "Impurity reduction during 'puff and pump' experiments on DIII-D",

abstract = "Results are presented from an experiment in which a large amount of deuterium gas was continuously puffed at the scrape-off layer and exhausted from the DIII-D pump divertor ('puff and pump' technique). The experiments were conducted with a single null divertor configuration during edge localized mode (ELM)ing H mode. Steady state density conditions were attained during the strong deuterium puff. The deuterium puff reduced the central plasma density of argon, puffed continuously as a trace impurity, by as much as a factor of 20, and the central argon radiated power density by as much as a factor of 10.",

author = "Schaffer, \{M. J.\} and Whyte, \{D. G.\} and Brooks, \{N. H.\} and Cuthbertson, \{J. W.\} and J. Kim and Lippmann, \{S. I.\} and Mahdavi, \{M. A.\} and R. Maingi and Wood, \{R. D.\}",

year = "1995",

doi = "10.1088/0029-5515/35/8/I09",

language = "English (US)",

volume = "35",

pages = "1000--1007",

journal = "Nuclear Fusion",

issn = "0029-5515",

publisher = "IOP Publishing Ltd.",

number = "8",

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TY - JOUR

T1 - Impurity reduction during 'puff and pump' experiments on DIII-D

AU - Schaffer, M. J.

AU - Whyte, D. G.

AU - Brooks, N. H.

AU - Cuthbertson, J. W.

AU - Kim, J.

AU - Lippmann, S. I.

AU - Mahdavi, M. A.

AU - Maingi, R.

AU - Wood, R. D.

PY - 1995

Y1 - 1995

N2 - Results are presented from an experiment in which a large amount of deuterium gas was continuously puffed at the scrape-off layer and exhausted from the DIII-D pump divertor ('puff and pump' technique). The experiments were conducted with a single null divertor configuration during edge localized mode (ELM)ing H mode. Steady state density conditions were attained during the strong deuterium puff. The deuterium puff reduced the central plasma density of argon, puffed continuously as a trace impurity, by as much as a factor of 20, and the central argon radiated power density by as much as a factor of 10.

AB - Results are presented from an experiment in which a large amount of deuterium gas was continuously puffed at the scrape-off layer and exhausted from the DIII-D pump divertor ('puff and pump' technique). The experiments were conducted with a single null divertor configuration during edge localized mode (ELM)ing H mode. Steady state density conditions were attained during the strong deuterium puff. The deuterium puff reduced the central plasma density of argon, puffed continuously as a trace impurity, by as much as a factor of 20, and the central argon radiated power density by as much as a factor of 10.

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U2 - 10.1088/0029-5515/35/8/I09

DO - 10.1088/0029-5515/35/8/I09

M3 - Article

AN - SCOPUS:0029347925

SN - 0029-5515

VL - 35

SP - 1000

EP - 1007

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 8

M1 - I09

ER -

Impurity reduction during 'puff and pump' experiments on DIII-D

Abstract

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