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arXiv 1406.0656physics.plasm-ph
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相对论透明区laser驱动离子能量的标度

Scaling of laser-driven ion energies in the relativistic transparent regime

D. Jung, L. Yin, B. J. Albright, D. C. Gautier, B. Dromey, R. Shah, S. Palaniyappan, S. Letzring, H. -C. Wu, T. Shimada, R. P. Johnson, D. Habs, M. Roth, J. C. … 展开作者

D. Jung, L. Yin, B. J. Albright, D. C. Gautier, B. Dromey, R. Shah, S. Palaniyappan, S. Letzring, H. -C. Wu, T. Shimada, R. P. Johnson, D. Habs, M. Roth, J. C. Fernandez, B. M. Hegelich

摘要:

激光驱动离子具有引人注目的特性,其在医学应用中的潜在用途吸引了全球的巨大兴趣。这些应用的主要挑战之一是产生所需能量的光束。到目前为止,还没有系统的研究激光强度的影响产生的激光驱动离子的相对论透明过程中的箔。在这里,我们提出了一个缩放离子能量相对于靶上的激光强度,并在考虑目标厚度,我们发现一个最佳的厚度密切相关的实验观察到的相对论透明度。与归一化的激光振幅a0的陡峭的线性缩放已被测量和验证与PIC模拟。与TNSA相比,这种缩放比要陡得多,并且已经针对Z > 1的离子进行了测量。根据我们的研究结果,目前可用的激光系统已经可以获得超过100 MeV/amu的离子能量,从而实现许多先进的应用

英文摘要:

Laser-driven ions have compelling properties and their potential use for medical applications has attracted a huge global interest. One of the major challenges of these applications is generating beams of the required energies. To date, there has been no systematic study of the effect of laser intensity on the generation of laser-driven ions from ultrathin foils during relativistic transparency. Here we present a scaling for ion energies with respect to the on-target laser intensity and in considering target thickness we find an optimum thickness closely related to the experimentally observed relativistic transparency. A steep linear scaling with the normalized laser amplitude a0 has been measured and verified with PIC simulations. In contrast to TNSA, this scaling is much steeper and has been measured for ions with Z > 1. Following our results, ion energies exceeding 100MeV/amu are already accessible with currently available laser systems enabling realization of numerous advanced applications

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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