Application of relativistic laser plasmas for the study of nuclear reactions
Application of relativistic laser plasmas for the study of nuclear reactions
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DOI：
10.1088/0741-3335/45/12a/006
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发表时间：
2003-11
影响因子：
2.2
通讯作者：
F. Ewald;H. Schwoerer;S. Düsterer;R. Sauerbrey;J. Magill;J. Galy;R. Schenkel;S. Karsch;D. Habs;K. Witte
中科院分区：
文献类型：
--
作者：
F. Ewald;H. Schwoerer;S. Düsterer;R. Sauerbrey;J. Magill;J. Galy;R. Schenkel;S. Karsch;D. Habs;K. Witte
台式钛宝石激光器，如耶拿多太瓦激光器，如今可以达到高达1020W cm−2的聚焦强度。这种强烈的光场与固体靶--在我们的例子中是钽--相互作用，产生高能量的韧致X射线。它们被用来在181Ta、129I、232Th、238U和9Be中诱导(γ，n)-和(γ，f)-反应。这些结果在激光等离子体诊断和放射性材料的光变形研究的背景下进行了讨论。我们还报道了在低Z目标上的聚变实验，其中聚变中子被用来表征离子加速过程。
Tabletop Ti : sapphire lasers, such as the Jena multi-Terawatt laser, can nowadays reach focused intensities of up to 1020 W cm−2. The interaction of this intense light field with a solid target—in our case tantalum—leads to the production of energetic bremsstrahlung x-rays. These are used to induce (γ,n)- and (γ,f)-reactions in 181Ta, 129I, 232Th, 238U and 9Be. The results are discussed in the context of laser plasma diagnostics and photo transmutation studies on radioactive material.We also report on fusion experiments in low-Z targets where the fusion neutrons are utilized to characterize ion acceleration processes.