Dynamics of hydrogenic retention in molybdenum: First results from DIONISOS

G.M. Wright; D.G. Whyte; J.G. Kulpin; B. Lipschultz; R.P. Doerner

doi:10.1016/j.jnucmat.2007.01.135

Dynamics of hydrogenic retention in molybdenum: First results from DIONISOS

G.M. Wright, D.G. Whyte, J.G. Kulpin, B. Lipschultz, R.P. Doerner

Physics

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

Abstract

The DIONISOS (Dynamics of ION Implantation and Sputtering of Surfaces) experiment is described. DIONISOS features steady-state plasma exposure of material surfaces, with simultaneous, in situ, non-destructive depth profiling on the same surfaces with ion beam analysis (IBA). A steady-state RF helicon plasma source produces a fusion 'edge-like' low temperature (T ∼ 1-10 eV), high-density (≤10 m), steady-state, cylindrical, plasma (φ{symbol} ∼ 50 mm). The exposure stage allows for the control of sample surface temperature (300-800 K), incident ion energy (10-500 eV), and ion beam and magnetic field incident angle (360° rotation), during bombardment with high plasma flux (∼10-10 s m). First results from DIONISOS show a large and evolving concentration of deuterium (∼1000 appm) trapped deep (∼5 μm) in molybdenum. IBA during plasma exposures shows the surface dynamic deuterium inventory increased by a factor of 2 over the 'long-term' trapped inventory at an incident ion flux density of ∼1.5 × 10 D/m s.

Original language	English
Pages (from-to)	977-983
Number of pages	7
Journal	Journal of Nuclear Materials
Volume	363-365
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jnucmat.2007.01.135
Publication status	Published - 15 Jun 2007

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title = "Dynamics of hydrogenic retention in molybdenum: First results from DIONISOS",

abstract = "The DIONISOS (Dynamics of ION Implantation and Sputtering of Surfaces) experiment is described. DIONISOS features steady-state plasma exposure of material surfaces, with simultaneous, in situ, non-destructive depth profiling on the same surfaces with ion beam analysis (IBA). A steady-state RF helicon plasma source produces a fusion 'edge-like' low temperature (T ∼ 1-10 eV), high-density (≤10 m), steady-state, cylindrical, plasma (φ{symbol} ∼ 50 mm). The exposure stage allows for the control of sample surface temperature (300-800 K), incident ion energy (10-500 eV), and ion beam and magnetic field incident angle (360° rotation), during bombardment with high plasma flux (∼10-10 s m). First results from DIONISOS show a large and evolving concentration of deuterium (∼1000 appm) trapped deep (∼5 μm) in molybdenum. IBA during plasma exposures shows the surface dynamic deuterium inventory increased by a factor of 2 over the 'long-term' trapped inventory at an incident ion flux density of ∼1.5 × 10 D/m s.",

author = "G.M. Wright and D.G. Whyte and J.G. Kulpin and B. Lipschultz and R.P. Doerner",

year = "2007",

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doi = "10.1016/j.jnucmat.2007.01.135",

language = "English",

volume = "363-365",

pages = "977--983",

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T2 - First results from DIONISOS

AU - Wright, G.M.

AU - Whyte, D.G.

AU - Kulpin, J.G.

AU - Lipschultz, B.

AU - Doerner, R.P.

PY - 2007/6/15

Y1 - 2007/6/15

N2 - The DIONISOS (Dynamics of ION Implantation and Sputtering of Surfaces) experiment is described. DIONISOS features steady-state plasma exposure of material surfaces, with simultaneous, in situ, non-destructive depth profiling on the same surfaces with ion beam analysis (IBA). A steady-state RF helicon plasma source produces a fusion 'edge-like' low temperature (T ∼ 1-10 eV), high-density (≤10 m), steady-state, cylindrical, plasma (φ{symbol} ∼ 50 mm). The exposure stage allows for the control of sample surface temperature (300-800 K), incident ion energy (10-500 eV), and ion beam and magnetic field incident angle (360° rotation), during bombardment with high plasma flux (∼10-10 s m). First results from DIONISOS show a large and evolving concentration of deuterium (∼1000 appm) trapped deep (∼5 μm) in molybdenum. IBA during plasma exposures shows the surface dynamic deuterium inventory increased by a factor of 2 over the 'long-term' trapped inventory at an incident ion flux density of ∼1.5 × 10 D/m s.

AB - The DIONISOS (Dynamics of ION Implantation and Sputtering of Surfaces) experiment is described. DIONISOS features steady-state plasma exposure of material surfaces, with simultaneous, in situ, non-destructive depth profiling on the same surfaces with ion beam analysis (IBA). A steady-state RF helicon plasma source produces a fusion 'edge-like' low temperature (T ∼ 1-10 eV), high-density (≤10 m), steady-state, cylindrical, plasma (φ{symbol} ∼ 50 mm). The exposure stage allows for the control of sample surface temperature (300-800 K), incident ion energy (10-500 eV), and ion beam and magnetic field incident angle (360° rotation), during bombardment with high plasma flux (∼10-10 s m). First results from DIONISOS show a large and evolving concentration of deuterium (∼1000 appm) trapped deep (∼5 μm) in molybdenum. IBA during plasma exposures shows the surface dynamic deuterium inventory increased by a factor of 2 over the 'long-term' trapped inventory at an incident ion flux density of ∼1.5 × 10 D/m s.

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JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

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Dynamics of hydrogenic retention in molybdenum: First results from DIONISOS

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