FusionPapers
図版検索トレンドwiki日本の研究
© 2026 FUSIONPAPERS
About法務情報
トップに戻る

Retention and replacement of hydrogen isotopes and isotope effect in SiC by H+ and D+ ion irradiation

Yasuhisa Oya, Hironori Suzuki, Kenji Morita, Koichi Iinuma, Satoru Tanaka2002年Fusion Engineering and DesignIF 1.7出版社

AbstractThe retention and isotope replacement behavior of hydrogen isotopes in SiC has been studied by means of the elastic recoil detection (ERD) technique. The protium ions or deuterium ions were implanted into SiC at room temperature up to almost the saturation. Successively, the ion source was switched to deuterium ions or protium ions and the samples were irradiated at the same fluence under the same experimental conditions, respectively. The mass balance equations were applied to analyze the retention curves and the curves of decay and uptake in the isotope replacement. The saturation concentrations of H and D have been found to be about 0.70 and 0.75, respectively. The detrapping cross sections of H and D implants by the D2+ and H2+ ion bombardments have been determined to be 3.2±0.3×10−22 m2/D+ and 2.6±0.2×10−22 m2/H+, respectively. The magnitude of these detrapping cross sections from SiC is as large as that from graphite. These isotope differences are discussed in terms of the elementary processes included in the mass balance equations.

日本語訳

弾性反跳検出(ERD)法を用いて、SiC中の水素同位体の保持および同位体置換挙動を研究した。軽水素イオンまたは重水素イオンを室温でSiC中にほぼ飽和するまで注入した。続いて、イオン源を重水素イオンまたは軽水素イオンに切り替え、それぞれ同じ実験条件下で同じフルエンスの照射を行った。質量バランス方程式を適用して、同位体置換における保持曲線ならびに減衰および取り込み曲線を解析した。HおよびDの飽和濃度は、それぞれ約0.70および0.75であることが見出された。D₂⁺およびH₂⁺イオン照射によるHおよびD注入のデトラッピング断面積は、それぞれ3.2±0.3×10⁻²² m²/D⁺および2.6±0.2×10⁻²² m²/H⁺と決定された。SiCにおけるこれらのデトラッピング断面積の大きさは、グラファイトにおけるそれと同程度である。これらの同位体差は、質量バランス方程式に含まれる素過程の観点から考察された。

wiki

Hydrogen isotopesSilicon carbideIon irradiation
この論文にはまだAI要約がありません。

関連論文

Analytical approximations to the rate coefficients for charge exchange and ionization of neutral beams

1979Nuclear Fusion

The isotope effect on impurities and bulk ion particle transport in the Large Helical Device

2019Nuclear Fusion

Irradiation effect on deuterium behaviour in low-dose HFIR neutron-irradiated tungsten

2015Nuclear Fusion

Measuring the isotope effect on the gross beryllium erosion in JET

2022Nuclear Fusion

Isotope effect in transient electron thermal transport property and its impact on the electron internal transport barrier formation in LHD*

2020Nuclear Fusion

Comparative study of deuterium retention in irradiated Eurofer and Fe–Cr from a new ion implantation materials facility

2020Nuclear Fusion

First measurements on the core and edge isotope composition using the JET isotope separator neutral particle analyser

2003Plasma Physics and Controlled Fusion

Deuterium retention in tungsten irradiated by different ions

2020Nuclear Fusion

Deuterium retention in heavy-ion and helium-ion sequentially irradiated tungsten

2024Nuclear Fusion

The role of isotope mass and transport for H-mode access in tritium containing plasmas at JET with ITER-like wall

2023Plasma Physics and Controlled Fusion