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Hundreds-GeV Au ion generation by 1022–24 W cm−2 laser pulses interacting with high-Z grain doped gas
Plasma Physics and Controlled Fusion ( IF 2.2 ) Pub Date : 2021-01-09 , DOI: 10.1088/1361-6587/abcf7d
N Zhao 1 , D B Zou 1 , X R Jiang 1 , T P Yu 1 , M Y Yu 2 , K Liu 1 , T W Huang 2 , H Zhang 2 , S Z Wu 2 , L X Hu 1 , G B Zhang 1 , Y Yin 1 , F Q Shao 1 , H B Zhuo 2 , C T Zhou 2
Affiliation  

Collision of intermediate-energy heavy ions is an important way to investigate the state of high-density nuclear matter and formation of quark gluon plasmas. In this paper, we demonstrate from two-dimensional particle-in-cell simulations that hundreds-GeV Au79+ ions can be generated by ultrashort ∼1022–24 W cm−2 lasers interacting with high-Z grain doped gas. Under extremely intense laser field, strong γ-ray radiation has resulted in massive laser energy loss, and the invoked radiation reaction trapping of electrons weakens the heavy ion acceleration. However, due to hole-boring acceleration and multi-body expansion acceleration of high-Z grains, the energy conversion efficiency from laser to heavy ions is still up to 32%. Our results might provide an effective routine to carry out the experimental explorations of heavy-ion collisions by using hundreds-petawatt laser facilities.



中文翻译:

通过10 22–24  W cm -2激光脉冲与高Z晶粒掺杂气体相互作用产生数百GeV Au离子

中能重离子的碰撞是研究高密度核物质状态和夸克胶子等离子体形成的重要途径。在本文中,我们从二维粒子模拟中证明,超短〜10 22–24  W cm -2激光与高Z掺杂的气体相互作用可以产生数百个GeV Au 79+离子。在极强的激光场下,强的γ射线辐射导致大量的激光能量损失,并且电子引起的辐射反应俘获削弱了重离子的加速。但是,由于高Z的镗孔加速度和多体膨胀加速度从激光到重离子的能量转换效率仍然高达32%。我们的结果可能会提供一个有效的程序,以通过使用数百匹瓦的激光设备进行重离子碰撞的实验探索。

更新日期:2021-01-09
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