Interactions of diamond surfaces with fusion relevant plasmas

G. De Temmerman; R. P. Doerner; P. John; S. Lisgo; A. Litnovsky; L. Marot; S. Porro; P. Petersson; M. Rubel; D. L. Rudakov; G. Van Rooij; J. Westerhout; J. I B Wilson

doi:10.1088/0031-8949/2009/T138/014013

Interactions of diamond surfaces with fusion relevant plasmas

G. De Temmerman, R. P. Doerner, P. John, S. Lisgo, A. Litnovsky, L. Marot, S. Porro, P. Petersson, M. Rubel, D. L. Rudakov, G. Van Rooij, J. Westerhout, J. I B Wilson

School of Engineering & Physical Sciences

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24 Citations (Scopus)

Abstract

The outstanding thermal properties of diamond and its low reactivity towards hydrogen may make it an attractive plasma-facing material for fusion and calls for a proper evaluation of its behaviour under exposure to fusion-relevant plasma conditions. Micro and nanocrystalline diamond layers, deposited on Mo and Si substrates by hot filament chemical vapour deposition (CVD), have been exposed both in tokamaks and in linear plasma devices to measure the erosion rate of diamond and study the modification of the surface properties induced by particle bombardment. Experiments in Pilot-PSI and PISCES-B have shown that the sputtering yield of diamond (both physical and chemical) was a factor of 2 lower than that of graphite. Exposure to detached plasma conditions in the DIII-D tokamak have evidenced a strong resistance of diamond against erosion under those conditions. © 2009 The Royal Swedish Academy of Sciences.

Original language	English
Article number	14013
Journal	Physica Scripta T
Volume	2009
Issue number	T138
DOIs	https://doi.org/10.1088/0031-8949/2009/T138/014013
Publication status	Published - 2009
Event	12th International Workshop on Plasma-Facing Materials and Components for Fusion Applications - Julich, Germany Duration: 11 May 2009 → 14 May 2009

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10.1088/0031-8949/2009/T138/014013

Cite this

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title = "Interactions of diamond surfaces with fusion relevant plasmas",

abstract = "The outstanding thermal properties of diamond and its low reactivity towards hydrogen may make it an attractive plasma-facing material for fusion and calls for a proper evaluation of its behaviour under exposure to fusion-relevant plasma conditions. Micro and nanocrystalline diamond layers, deposited on Mo and Si substrates by hot filament chemical vapour deposition (CVD), have been exposed both in tokamaks and in linear plasma devices to measure the erosion rate of diamond and study the modification of the surface properties induced by particle bombardment. Experiments in Pilot-PSI and PISCES-B have shown that the sputtering yield of diamond (both physical and chemical) was a factor of 2 lower than that of graphite. Exposure to detached plasma conditions in the DIII-D tokamak have evidenced a strong resistance of diamond against erosion under those conditions. {\textcopyright} 2009 The Royal Swedish Academy of Sciences.",

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language = "English",

volume = "2009",

journal = "Physica Scripta T",

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note = "12th International Workshop on Plasma-Facing Materials and Components for Fusion Applications, PFMC-12 ; Conference date: 11-05-2009 Through 14-05-2009",

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TY - JOUR

T1 - Interactions of diamond surfaces with fusion relevant plasmas

AU - De Temmerman, G.

AU - Doerner, R. P.

AU - John, P.

AU - Lisgo, S.

AU - Litnovsky, A.

AU - Marot, L.

AU - Porro, S.

AU - Petersson, P.

AU - Rubel, M.

AU - Rudakov, D. L.

AU - Van Rooij, G.

AU - Westerhout, J.

AU - Wilson, J. I B

PY - 2009

Y1 - 2009

N2 - The outstanding thermal properties of diamond and its low reactivity towards hydrogen may make it an attractive plasma-facing material for fusion and calls for a proper evaluation of its behaviour under exposure to fusion-relevant plasma conditions. Micro and nanocrystalline diamond layers, deposited on Mo and Si substrates by hot filament chemical vapour deposition (CVD), have been exposed both in tokamaks and in linear plasma devices to measure the erosion rate of diamond and study the modification of the surface properties induced by particle bombardment. Experiments in Pilot-PSI and PISCES-B have shown that the sputtering yield of diamond (both physical and chemical) was a factor of 2 lower than that of graphite. Exposure to detached plasma conditions in the DIII-D tokamak have evidenced a strong resistance of diamond against erosion under those conditions. © 2009 The Royal Swedish Academy of Sciences.

AB - The outstanding thermal properties of diamond and its low reactivity towards hydrogen may make it an attractive plasma-facing material for fusion and calls for a proper evaluation of its behaviour under exposure to fusion-relevant plasma conditions. Micro and nanocrystalline diamond layers, deposited on Mo and Si substrates by hot filament chemical vapour deposition (CVD), have been exposed both in tokamaks and in linear plasma devices to measure the erosion rate of diamond and study the modification of the surface properties induced by particle bombardment. Experiments in Pilot-PSI and PISCES-B have shown that the sputtering yield of diamond (both physical and chemical) was a factor of 2 lower than that of graphite. Exposure to detached plasma conditions in the DIII-D tokamak have evidenced a strong resistance of diamond against erosion under those conditions. © 2009 The Royal Swedish Academy of Sciences.

U2 - 10.1088/0031-8949/2009/T138/014013

DO - 10.1088/0031-8949/2009/T138/014013

M3 - Article

SN - 0281-1847

VL - 2009

JO - Physica Scripta T

JF - Physica Scripta T

IS - T138

M1 - 14013

T2 - 12th International Workshop on Plasma-Facing Materials and Components for Fusion Applications

Y2 - 11 May 2009 through 14 May 2009

ER -

Interactions of diamond surfaces with fusion relevant plasmas

Abstract

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