High contrast high intensity petawatt J-KAREN-P laser facility at QST
High contrast high intensity petawatt J-KAREN-P laser facility at QST
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QST 的高对比度高强度拍瓦 J-KAREN-P 激光设备
DOI：
10.1117/12.2271172
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
K. Kondo
中科院分区：
文献类型：
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作者：
M. Nishiuchi;H. Kiriyama;H. Sakaki;N. P. Dover;K. Kondo;A. S. Pirozhkov;A. Sagisaka;Y. Fukuda;K. Nishitani;T. Miyahara;K. Ogura;M. A. Alkhimova;T. A. Pikuz;A. Y. Faenov;Y. Watanabe;J. Koga;S. V. Bulanov;M. Kando;K. Kondo
我们报道了QST的J-Karen-P激光装置，它可以在靶面上提供0.1赫兹的PW峰值功率。该系统经压缩后可输出能量为30J、脉宽为30ps的短脉冲，对比度优于1012。高场科学的这种表现将带来新的应用和突破，包括相对论粒子加速、亮X射线源产生和核激活。目前获得的靶上激光强度高达~gt；9×1021W cm-2，靶上能量为~9J。与3到5μm不锈钢带靶的相互作用为我们提供了典型的10 MeV以上的电子温度和典型的最大能量为>；40 MeV的高能质子束，具有良好的重复性。质子在目标法向鞘加速区域加速，这适用于许多应用，包括作为医疗用光束线的注入器，这是我们的目标之一。
We report on the J-KAREN-P laser facility at QST, which can provide PW peak power at 0.1 Hz on target. The system can deliver short pulses with an energy of 30 J and pulse duration of 30 fs after compression with a contrast level of better than 1012. Such performance in high field science will give rise to the birth of new applications and breakthroughs, which include relativistic particle acceleration, bright x-ray source generation, and nuclear activation. The current achieved laser intensity on target is up to > 9x1021Wcm-2 with an energy of ~9 J on target. The interaction with a 3 to 5- μm stainless steel tape target provides us electrons with a typical temperature of more than 10 MeV and energetic proton beams with typical maximum energies of > 40 MeV with good reproducibility. The protons are accelerated in the Target Normal Sheath Acceleration regime, which is suitable for many applications including as an injector into a beamline for medical use, which is one of our objectives.