Measuring helium bubble diameter distributions in tungsten with grazing incidence small angle x-ray scattering (GISAXS)

M. Thompson; P. Kluth; R. P. Doerner; N. Kirby; D. Riley; C. S. Corr

doi:10.1088/0031-8949/2016/T167/014014

Measuring helium bubble diameter distributions in tungsten with grazing incidence small angle x-ray scattering (GISAXS)

M. Thompson^*, P. Kluth, R. P. Doerner, N. Kirby, D. Riley, C. S. Corr

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

8 Citations (Scopus)

Abstract

Grazing incidence small angle x-ray scattering was performed on tungsten samples exposed to helium plasma in the MAGPIE and Pisces-A linear plasma devices to measure the size distributions of resulting helium nano-bubbles. Nano-bubbles were fitted assuming spheroidal particles and an exponential diameter distribution. These particles had mean diameters between 0.36 and 0.62 nm. Pisces-A exposed samples showed more complex patterns, which may suggest the formation of faceted nano-bubbles or nano-scale surface structures.

Original language	English
Article number	014014
Journal	Physica Scripta
Volume	2016
Issue number	T167
DOIs	https://doi.org/10.1088/0031-8949/2016/T167/014014
Publication status	Published - 25 Jan 2016
Event	15th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2015 - Aix-en-Provence, France Duration: 18 May 2015 → 22 May 2015

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10.1088/0031-8949/2016/T167/014014

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title = "Measuring helium bubble diameter distributions in tungsten with grazing incidence small angle x-ray scattering (GISAXS)",

abstract = "Grazing incidence small angle x-ray scattering was performed on tungsten samples exposed to helium plasma in the MAGPIE and Pisces-A linear plasma devices to measure the size distributions of resulting helium nano-bubbles. Nano-bubbles were fitted assuming spheroidal particles and an exponential diameter distribution. These particles had mean diameters between 0.36 and 0.62 nm. Pisces-A exposed samples showed more complex patterns, which may suggest the formation of faceted nano-bubbles or nano-scale surface structures.",

keywords = "GISAXS, fusion, helium, nano-bubble, tungsten",

author = "M. Thompson and P. Kluth and Doerner, \{R. P.\} and N. Kirby and D. Riley and Corr, \{C. S.\}",

note = "Publisher Copyright: {\textcopyright} 2016 The Royal Swedish Academy of Sciences.; 15th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2015 ; Conference date: 18-05-2015 Through 22-05-2015",

year = "2016",

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doi = "10.1088/0031-8949/2016/T167/014014",

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TY - JOUR

T1 - Measuring helium bubble diameter distributions in tungsten with grazing incidence small angle x-ray scattering (GISAXS)

AU - Thompson, M.

AU - Kluth, P.

AU - Doerner, R. P.

AU - Kirby, N.

AU - Riley, D.

AU - Corr, C. S.

PY - 2016/1/25

Y1 - 2016/1/25

N2 - Grazing incidence small angle x-ray scattering was performed on tungsten samples exposed to helium plasma in the MAGPIE and Pisces-A linear plasma devices to measure the size distributions of resulting helium nano-bubbles. Nano-bubbles were fitted assuming spheroidal particles and an exponential diameter distribution. These particles had mean diameters between 0.36 and 0.62 nm. Pisces-A exposed samples showed more complex patterns, which may suggest the formation of faceted nano-bubbles or nano-scale surface structures.

AB - Grazing incidence small angle x-ray scattering was performed on tungsten samples exposed to helium plasma in the MAGPIE and Pisces-A linear plasma devices to measure the size distributions of resulting helium nano-bubbles. Nano-bubbles were fitted assuming spheroidal particles and an exponential diameter distribution. These particles had mean diameters between 0.36 and 0.62 nm. Pisces-A exposed samples showed more complex patterns, which may suggest the formation of faceted nano-bubbles or nano-scale surface structures.

KW - GISAXS

KW - fusion

KW - helium

KW - nano-bubble

KW - tungsten

UR - https://www.scopus.com/pages/publications/84959919089

U2 - 10.1088/0031-8949/2016/T167/014014

DO - 10.1088/0031-8949/2016/T167/014014

M3 - Conference article

SN - 0031-8949

VL - 2016

JO - Physica Scripta

JF - Physica Scripta

IS - T167

M1 - 014014

T2 - 15th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2015

Y2 - 18 May 2015 through 22 May 2015

ER -

Measuring helium bubble diameter distributions in tungsten with grazing incidence small angle x-ray scattering (GISAXS)

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