Spectroscopic study of energetic helium-ion irradiation effects on nuclear graphite tiles

Do Wan Kim; K. W. Lee; D. M. Choi; S. J. Noh; H. S. Kim; Cheol Eui Lee

doi:10.1016/j.nimb.2015.11.028

Spectroscopic study of energetic helium-ion irradiation effects on nuclear graphite tiles

Do Wan Kim, K. W. Lee, D. M. Choi, S. J. Noh, H. S. Kim, Cheol Eui Lee

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5 Scopus citations

Abstract

Helium ion-irradiation effects on the nuclear graphite tiles were studied in order to understand the structural modifications and damages that can be produced by fusion reaction in tokamaks. The surface morphological changes due to increasing dose of the irradiation were examined by the field-effect scanning electron microscopy, and X-ray photoelectron spectroscopy elucidated the changes in the shallow surface bonding configurations caused by the energetic irradiation. Raman spectroscopy revealed the structural defects and diamond-like carbon sites that increased with increasing irradiation dose, and the average inter-defect distance was found from the Raman peak intensities as a function of the irradiation dose.

Original language	English
Pages (from-to)	5-8
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	368
DOIs	https://doi.org/10.1016/j.nimb.2015.11.028
State	Published - 1 Feb 2016

Keywords

Graphite tile
Helium-ion irradiation
Raman spectroscopy
X-ray photoelectron spectroscopy

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10.1016/j.nimb.2015.11.028

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title = "Spectroscopic study of energetic helium-ion irradiation effects on nuclear graphite tiles",

abstract = "Helium ion-irradiation effects on the nuclear graphite tiles were studied in order to understand the structural modifications and damages that can be produced by fusion reaction in tokamaks. The surface morphological changes due to increasing dose of the irradiation were examined by the field-effect scanning electron microscopy, and X-ray photoelectron spectroscopy elucidated the changes in the shallow surface bonding configurations caused by the energetic irradiation. Raman spectroscopy revealed the structural defects and diamond-like carbon sites that increased with increasing irradiation dose, and the average inter-defect distance was found from the Raman peak intensities as a function of the irradiation dose.",

keywords = "Graphite tile, Helium-ion irradiation, Raman spectroscopy, X-ray photoelectron spectroscopy",

author = "Kim, {Do Wan} and Lee, {K. W.} and Choi, {D. M.} and Noh, {S. J.} and Kim, {H. S.} and Lee, {Cheol Eui}",

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T1 - Spectroscopic study of energetic helium-ion irradiation effects on nuclear graphite tiles

AU - Kim, Do Wan

AU - Lee, K. W.

AU - Choi, D. M.

AU - Noh, S. J.

AU - Kim, H. S.

AU - Lee, Cheol Eui

PY - 2016/2/1

Y1 - 2016/2/1

N2 - Helium ion-irradiation effects on the nuclear graphite tiles were studied in order to understand the structural modifications and damages that can be produced by fusion reaction in tokamaks. The surface morphological changes due to increasing dose of the irradiation were examined by the field-effect scanning electron microscopy, and X-ray photoelectron spectroscopy elucidated the changes in the shallow surface bonding configurations caused by the energetic irradiation. Raman spectroscopy revealed the structural defects and diamond-like carbon sites that increased with increasing irradiation dose, and the average inter-defect distance was found from the Raman peak intensities as a function of the irradiation dose.

AB - Helium ion-irradiation effects on the nuclear graphite tiles were studied in order to understand the structural modifications and damages that can be produced by fusion reaction in tokamaks. The surface morphological changes due to increasing dose of the irradiation were examined by the field-effect scanning electron microscopy, and X-ray photoelectron spectroscopy elucidated the changes in the shallow surface bonding configurations caused by the energetic irradiation. Raman spectroscopy revealed the structural defects and diamond-like carbon sites that increased with increasing irradiation dose, and the average inter-defect distance was found from the Raman peak intensities as a function of the irradiation dose.

KW - Graphite tile

KW - Helium-ion irradiation

KW - Raman spectroscopy

KW - X-ray photoelectron spectroscopy

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M3 - Article

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SN - 0168-583X

VL - 368

SP - 5

EP - 8

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

ER -

Spectroscopic study of energetic helium-ion irradiation effects on nuclear graphite tiles

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Keywords

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