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Frequency characteristics of the liquid Li target flow surface in A-FNS
https://repo.qst.go.jp/records/2002669
https://repo.qst.go.jp/records/20026693113fb2d-eb3a-4fde-959d-bde0e2f0b636
| アイテムタイプ | 学術雑誌論文 / Journal Article(1) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2026-02-05 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Frequency characteristics of the liquid Li target flow surface in A-FNS | |||||||||||
| 言語 | en | |||||||||||
| 言語 | ||||||||||||
| 言語 | eng | |||||||||||
| 資源タイプ | ||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||
| 資源タイプ | journal article | |||||||||||
| 著者 |
Kenjo Shunsuke
× Kenjo Shunsuke
× Yoshiyuki Tsuji
× Masuda Kai
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| 抄録 | ||||||||||||
| 内容記述タイプ | Abstract | |||||||||||
| 内容記述 | One of the key challenges in Advanced Fusion Neutron Source (A-FNS) is to maintain the stable liquid Li target flow over the long-term operation. The laser-based distance meter using an optical frequency comb has been selected to detect the surface disturbance due to the nozzle degradation. However, the laser-based method can measure only wave crests/troughs where the incident laser is reflected. This study evaluated the frequency characteristics of the liquid Li flow surface by interpolating the irregular time series crest/trough data obtained in EVEDA Li Test Loop (ELTL) and performing Fast Fourier Transformation calculations. Linear and sine wave interpolation were performed, and the effect of the interpolation method was evaluated. This study revealed the frequency characteristics of the free surface liquid level fluctuations with the experimental results for the first time. Since a decrease in the spectra intensities due to the rough nozzle surface has been suggested by the calculations, the evaluations in temporal change of the energy spectra could quantitatively detect the nozzle degradation. | |||||||||||
| 書誌情報 |
Fusion Engineering and Design 巻 225, 号 115654, 発行日 2026-02 |
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| DOI | ||||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | 10.1016/j.fusengdes.2026.115654 | |||||||||||
