Photography of impurity injection into PLT plasmas

J. Timberlake; S. Cohen; C. Daughney; D. Manos

doi:10.1116/1.572007

Photography of impurity injection into PLT plasmas

J. Timberlake, S. Cohen, C. Daughney, D. Manos

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

7 Scopus citations

Abstract

Using still color photography with submillisecond time resolution, observations of impurities injected into the PLT tokamak by laser blowoff have been made. These clearly show the existence of atomic vapor and particulates with abundances depending on laser fluence, material, and film thickness. Velocity determinations for each component have been made: for atomic vapor v⋍2 X 105 cm/s; and for particulates v≃5 X 104 cm/s. Their penetration depths into plasmas of different electron densities have also been measured. Models of penetration are compared with the data.

Original language	English (US)
Pages (from-to)	841-844
Number of pages	4
Journal	Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
Volume	1
Issue number	2
DOIs	https://doi.org/10.1116/1.572007
State	Published - Apr 1 1983

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films

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10.1116/1.572007

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author = "J. Timberlake and S. Cohen and C. Daughney and D. Manos",

year = "1983",

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T1 - Photography of impurity injection into PLT plasmas

AU - Timberlake, J.

AU - Cohen, S.

AU - Daughney, C.

AU - Manos, D.

PY - 1983/4/1

Y1 - 1983/4/1

N2 - Using still color photography with submillisecond time resolution, observations of impurities injected into the PLT tokamak by laser blowoff have been made. These clearly show the existence of atomic vapor and particulates with abundances depending on laser fluence, material, and film thickness. Velocity determinations for each component have been made: for atomic vapor v⋍2 X 105 cm/s; and for particulates v≃5 X 104 cm/s. Their penetration depths into plasmas of different electron densities have also been measured. Models of penetration are compared with the data.

AB - Using still color photography with submillisecond time resolution, observations of impurities injected into the PLT tokamak by laser blowoff have been made. These clearly show the existence of atomic vapor and particulates with abundances depending on laser fluence, material, and film thickness. Velocity determinations for each component have been made: for atomic vapor v⋍2 X 105 cm/s; and for particulates v≃5 X 104 cm/s. Their penetration depths into plasmas of different electron densities have also been measured. Models of penetration are compared with the data.

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Photography of impurity injection into PLT plasmas

Abstract

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