P. A. Shcheglov, M. M. Nazarov, T. A. Semenov, A. A. Tausenev, M. V. Chashchin, A. V. Lazarev, V. M. Gordienko
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引用次数: 0
Abstract
X-ray generation under interaction of relativistic laser pulses with krypton clusters has been studied. It is shown that the optimal focusing points for generating characteristic and hard bremsstrahlung are located in regions with different cluster concentrations inside the gas jet. A record (4.2 × 10–6) conversion efficiency of relativistic laser pulses into characteristic Kα (12.6 keV) has been achieved under interaction with large krypton clusters. The bremsstrahlung plasma temperature has been measured to be Te = 6 keV at an integral energy of the X-ray pulse of 3 × 109 keV/(4π pulse). The application of the designed source in time-resolved X-ray studies and in radiobiology are discussed.
研究了相对论激光脉冲与氪簇相互作用下产生的 X 射线。研究表明，产生特征轫致辐射和硬轫致辐射的最佳聚焦点位于气体射流内部不同簇浓度的区域。在与大型氪簇的相互作用下，相对论激光脉冲到特征轫致辐射（12.6 千伏）的转换效率达到了创纪录的（4.2 × 10-6）。在 X 射线脉冲的积分能量为 3 × 109 keV/（4π 脉冲）时，轫致辐射等离子体温度测量值为 Te = 6 keV。本文讨论了所设计的光源在时间分辨 X 射线研究和放射生物学中的应用。
期刊介绍：
Bulletin of the Lebedev Physics Institute is an international peer reviewed journal that publishes results of new original experimental and theoretical studies on all topics of physics: theoretical physics; atomic and molecular physics; nuclear physics; optics; lasers; condensed matter; physics of solids; biophysics, and others.
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