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Measuring stopping power in warm dense matter plasmas at OMEGA

B Lahmann, A M Saunders, T Döppner, J A Frenje, S H Glenzer, M Gatu-Johnson, G Sutcliffe, A B Zylstra, R D Petrasso2023年Plasma Physics and Controlled FusionIF 2.2出版社

A platform has been developed for accurately measuring the stopping power of high energy protons through warm dense matter (WDM) plasmas characterized by x-ray Thomson scattering. In this work stopping power measurements were successfully made through both WDM Beryllium and Boron plasmas. In the Boron experiments, an increase in stopping was observed over their cold target counter-parts. This increase in stopping was shown to agree well with models that account for the partial ionization of the plasma.

日本語訳

X線トムソン散乱によって特徴づけられる温かい高密度物質(WDM)プラズマ中を通過する高エネルギー陽子の阻止能を正確に測定するためのプラットフォームが開発された。本研究では、WDMベリリウムおよびホウ素プラズマの両方を通して阻止能測定に成功した。ホウ素の実験では、低温ターゲットの対応物と比較して阻止能の増加が観測された。この阻止能の増加は、プラズマの部分電離を考慮したモデルとよく一致することが示された。

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