New laser facilities able to deliver either ultra high energy short pulses or ultra high intensity pulses are being constructed and will open new and exciting opportunities for laser ion acceleration. The interaction of a high intensity short pulse with underdense, near-critical and overdense targets has been studied using 2D Particle-In-Cell simulations in these regimes. In the ultra high energy regime, proton beams with maximum energies of hundreds of MeV and a high number of high energy protons could be accelerated using thin solid foils or low density targets. In the ultra high intensity regime, radiation losses will start affecting laser ion acceleration using thin overdense targets for intensities higher than 1022? W/cm2, and produce very energetic ions.
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机译:正在建造能够提供超高能量短脉冲或超高强度脉冲的新激光设施,这将为激光离子加速打开新的令人兴奋的机会。高强度短脉冲与低密度,近临界和高密度靶标之间的相互作用已在这些方案中使用二维粒子模拟进行了研究。在超高能态下,可以使用薄的固体箔或低密度靶来加速具有数百MeV的最大能量和大量高能质子的质子束。在超高强度状态下,对于强度高于1022?的超薄超薄靶,辐射损失将开始影响激光离子加速。 W / cm2,并产生非常高能的离子。
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