Study of heating processes in the fast ignition scheme of laser fusion

激光聚变快点火方案加热过程研究

• 批准号: 15206104
• 负责人: KODAMA Ryosuke
• 金额: $ 29.87万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15206104/
• 关键词: Laser Fusion; Fast Ignition; High Energy Density; Ultra Intense Llaser; Fast Heating; Plasma Photonics; Plasma Photonic Device; 高エネルギー密度プラズマ; 核融合; 加熱; 高エネルギープラズマフォトニクス; プラズマデバイス工学; 高密度MeV電子; 加熱機構; 高エネルギー粒子; 高エネルギー電子輸送; 等体積加熱

The main subject of this project is investigation of the heating process in the fast ignition scheme of laser fusion. We have studied interactions of high energy density charged particles generated by ultra-intense laser light with high density plasmas. In consequence, the possibility of more efficient heating of high density plasmas has been scoped in this project.We have demonstrated control of high energy density electrons induced by ultra-intense short pulse laser light as well as understood the mechanism of the heating process. This first demonstration of the control of the high energy density electrons has been published in Nature 2004 as "Plasma Photonic Devices to control the laser induced high energy density electrons". The invention of the plasma photonic devices has broken through the difficulties in the control of high energy density electrons, resulting in the efficiently heating of high density plasmas. Then we believe that the subject scheduled for 4 years has been completed in these 3 years.The plasma photonic devices invented in this project will be explored to be used in a variety of fields such as developments of novel x-ray source and new electron beam device and researches on EOS in high pressure conditions, laser fusion and laboratory astrophysics. The interactions of high energy density protons generated with ultra-intense laser light must be useful for development of a novel plasma diagnostics as well as the heating of high density plasmas with the high energy density protons. We believe that this basic research must be extended to application research as soon as possible. Therefore we have completed this project in 3 years. We will subsequently develop these research results to new applications such as flash x-ray sources and active measurements of the high density plasmas using proton beams induced by ultra-intense laser light.

本项目的主要内容是研究激光聚变快速点火方案中的加热过程。研究了超强激光产生的高能量密度带电粒子与高密度等离子体的相互作用。因此，本计画探讨了更有效加热高密度电浆的可能性，我们已展示了由超强短脉冲雷射光所诱发的高能量密度电子的控制，以及了解加热过程的机制。这种控制高能量密度电子的第一次演示已经在Nature 2004中发表为“Plasma Photonic Devices to control the laser induced high energy density electrons”。等离子体光子器件的发明，突破了高能量密度电子控制的难题，实现了高密度等离子体的高效加热。因此，我们认为，在这三年中，预定四年的课题已经完成，本项目发明的等离子体光子器件将被探索用于各种领域，如新型X射线源和新型电子束装置的开发，以及高压条件下的EOS研究，激光聚变和实验室天体物理。高能质子与超强激光的相互作用对发展新型等离子体诊断技术以及利用高能质子加热高密度等离子体具有重要意义。我们认为，这种基础研究必须尽快扩展到应用研究。因此，我们在三年内完成了这个项目。随后，我们将把这些研究成果用于新的应用，如闪光x射线源和使用超强激光诱导的质子束对高密度等离子体进行主动测量。

项目成果

Study of hot electrons by measurement of optical emission from the rear surface of a metallic foil irradiated with ultraintense laser pulse.

• DOI: 10.1103/physrevlett.92.165001
• 发表时间: 2004-04
• 期刊: Physical review letters
• 影响因子: 8.6
• 作者: Jian Zheng;Kazuo A. Tanaka;Tetsuya Sato;T. Yabuuchi;T. Kurahashi;Y. Kitagawa;R. Kodama;T. Norimatsu-T

レーザーハンドブック

激光手册

• 发表时间: 2005
• 作者: Hashimoto;K.;H.lgarashi;S.Mano;M.Nishimura;T.Shimmen;E.Yokota;兒玉 了祐 共著
• 通讯作者: 兒玉 了祐 共著

硬X線発生方法および装置

硬X射线发生方法及装置

• 发表时间: 2004

K.A.Tanaka et al.: "Basic and integrated studies for fast ignition"Physics of Plasmas. 10. 1925-1930 (2003)

K.A.Tanaka 等人：“快速点火的基础和综合研究”等离子体物理学。

Study of proton acceleration at the target front surface in laser-solid interactions by neutron spectroscopy

中子能谱研究激光-固体相互作用中靶前表面质子加速

• 发表时间: 2006
• 期刊: Physics of Plasmas 13(1)
• 作者: A.Youssef;et al.
• 通讯作者: et al.