Laser-driven proton scaling laws and new paths towards energy increase
Laser-driven proton scaling laws and new paths towards energy increase
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DOI：
10.1038/nphys199
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发表时间：
2006-01-01
期刊：
影响因子：
19.6
通讯作者：
Audebert, R
中科院分区：
文献类型：
--
作者：
Fuchs, J;Antici, P;Audebert, R
在过去的几年里，基于激光的粒子加速器的发展取得了显着进展。从工程到医学，产生多兆电子伏质子的超亮光束的能力通常具有许多潜在的用途，但要实现这种潜力，必须对这些设备的性能进行实质性的改进。在这里，我们表明，在激光驱动的加速器，已被实验证明产生最高能量的质子，从流体模型和数值模拟支持的缩放定律可以用来准确地描述质子束的加速为大范围的激光和目标参数。这使我们能够评估产生高能量和高质量质子束所需的激光参数，用于致密物体的X射线摄影或深部肿瘤的质子治疗。
The past few years have seen remarkable progress in the development of laser-based particle accelerators. The ability to produce ultrabright beams of multi-megaelectronvolt protons routinely has many potential uses from engineering to medicine, but for this potential to be realized substantial improvements in the performances of these devices must be made. Here we show that in the laser-driven accelerator that has been demonstrated experimentally to produce the highest energy protons, scaling laws derived from fluid models and supported by numerical simulations can be used to accurately describe the acceleration of proton beams for a large range of laser and target parameters. This enables us to evaluate the laser parameters needed to produce high-energy and high-quality proton beams of interest for radiography of dense objects or proton therapy of deep-seated tumours.