Hydrogen isotope exchange in tungsten irradiated sequentially with low-energy deuterium and protium ions

V. Kh Alimov; B. Tyburska-Püschel; M. H.J. 'T Hoen; J. Roth; Y. Hatano; K. Isobe; M. Matsuyama; T. Yamanishi

doi:10.1088/0031-8949/2011/T145/014037

Hydrogen isotope exchange in tungsten irradiated sequentially with low-energy deuterium and protium ions

V. Kh Alimov^*, B. Tyburska-Püschel, M. H.J. 'T Hoen, J. Roth, Y. Hatano, K. Isobe, M. Matsuyama, T. Yamanishi

^*Corresponding author for this work

Hydrogen Isotope Research Center, Organization for Promotion of Research

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

21 Scopus citations

Abstract

Hydrogen isotope exchange in tungsten was investigated at various temperatures both after sequential exposure to low-energy deuterium (D) and protium (H) plasmas and after sequential irradiation with low-energy D and H ions. The methods used were thermal desorption spectroscopy, and the D( ³He,p) ⁴He nuclear reaction at ³He energies varied from 0.69 to 4.0 MeV, allowing the determination of the D concentration at depths of up to 6 μm. It was found that a major portion of the deuterium initially accumulated in the D-implanted W is released on subsequent exposure to H plasma or irradiation with H ions. Depth profiling of D without and with subsequent H implantation shows strong replacement close to the surface near room temperatures, but extending to all analyzable depths at elevated temperatures.

Original language	English
Article number	014037
Journal	Physica Scripta T
Volume	T145
DOIs	https://doi.org/10.1088/0031-8949/2011/T145/014037
State	Published - 2011
Event	13th International Workshop on Plasma-Facing Materials and Components for Fusion Applications, PFMC-13 and 1st International Conference on Fusion Energy Materials Science, FEMaS-1 - Rosenheim, Germany Duration: 2011/05/09 → 2011/05/13

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Mathematical Physics
Condensed Matter Physics

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title = "Hydrogen isotope exchange in tungsten irradiated sequentially with low-energy deuterium and protium ions",

abstract = "Hydrogen isotope exchange in tungsten was investigated at various temperatures both after sequential exposure to low-energy deuterium (D) and protium (H) plasmas and after sequential irradiation with low-energy D and H ions. The methods used were thermal desorption spectroscopy, and the D( 3He,p) 4He nuclear reaction at 3He energies varied from 0.69 to 4.0 MeV, allowing the determination of the D concentration at depths of up to 6 μm. It was found that a major portion of the deuterium initially accumulated in the D-implanted W is released on subsequent exposure to H plasma or irradiation with H ions. Depth profiling of D without and with subsequent H implantation shows strong replacement close to the surface near room temperatures, but extending to all analyzable depths at elevated temperatures.",

author = "Alimov, {V. Kh} and B. Tyburska-P{\"u}schel and {'T Hoen}, {M. H.J.} and J. Roth and Y. Hatano and K. Isobe and M. Matsuyama and T. Yamanishi",

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doi = "10.1088/0031-8949/2011/T145/014037",

language = "英語",

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T1 - Hydrogen isotope exchange in tungsten irradiated sequentially with low-energy deuterium and protium ions

AU - Alimov, V. Kh

AU - Tyburska-Püschel, B.

AU - 'T Hoen, M. H.J.

AU - Roth, J.

AU - Hatano, Y.

AU - Isobe, K.

AU - Matsuyama, M.

AU - Yamanishi, T.

PY - 2011

Y1 - 2011

N2 - Hydrogen isotope exchange in tungsten was investigated at various temperatures both after sequential exposure to low-energy deuterium (D) and protium (H) plasmas and after sequential irradiation with low-energy D and H ions. The methods used were thermal desorption spectroscopy, and the D( 3He,p) 4He nuclear reaction at 3He energies varied from 0.69 to 4.0 MeV, allowing the determination of the D concentration at depths of up to 6 μm. It was found that a major portion of the deuterium initially accumulated in the D-implanted W is released on subsequent exposure to H plasma or irradiation with H ions. Depth profiling of D without and with subsequent H implantation shows strong replacement close to the surface near room temperatures, but extending to all analyzable depths at elevated temperatures.

AB - Hydrogen isotope exchange in tungsten was investigated at various temperatures both after sequential exposure to low-energy deuterium (D) and protium (H) plasmas and after sequential irradiation with low-energy D and H ions. The methods used were thermal desorption spectroscopy, and the D( 3He,p) 4He nuclear reaction at 3He energies varied from 0.69 to 4.0 MeV, allowing the determination of the D concentration at depths of up to 6 μm. It was found that a major portion of the deuterium initially accumulated in the D-implanted W is released on subsequent exposure to H plasma or irradiation with H ions. Depth profiling of D without and with subsequent H implantation shows strong replacement close to the surface near room temperatures, but extending to all analyzable depths at elevated temperatures.

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DO - 10.1088/0031-8949/2011/T145/014037

M3 - 会議記事

AN - SCOPUS:84857566634

SN - 0281-1847

VL - T145

JO - Physica Scripta T

JF - Physica Scripta T

M1 - 014037

T2 - 13th International Workshop on Plasma-Facing Materials and Components for Fusion Applications, PFMC-13 and 1st International Conference on Fusion Energy Materials Science, FEMaS-1

Y2 - 9 May 2011 through 13 May 2011

ER -

Hydrogen isotope exchange in tungsten irradiated sequentially with low-energy deuterium and protium ions

Abstract

ASJC Scopus subject areas

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