Dynamic behavior of non diffusive transport of high density plasmoid in high temperature plasmas

高温等离子体中高密度等离子体团非扩散输运的动态行为

• 批准号: 21560863
• 负责人: SAKAMOTO Ryuichi
• 金额: $ 3万
• 依托单位: National Institute for Fusion Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21560863/
• 关键词: 磁場核融合; プラズマ核融合; 固体水素; 溶発

A complementary observation of solid hydrogen ablation has been performed by using a stereo fast camera and bundled fiber optics in order to investigate the pellet ablation dynamics. The pellet plasmoid which is formed around the pellet substance by ablating hydrogen pellet, intermittently breaks away from the pellet ablating position and the breakaway plasmoid is transported across a confinement field. The breakaway plasmoid recurrently develops at 100 kHz and it is non-diffusively transported approximately 15 cm during its 10 severalμs lifetime in the opposite direction to the pellet motion, namely, toward the low magnetic field side. This observation gives a reasonable explanation for the difference between the pellet ablation position and the effective particle deposition profile.

为了研究弹丸的烧蚀动力学，利用体视快速照相机和集束光纤对固体氢烧蚀进行了补充观测。通过烧蚀氢丸粒在丸粒物质周围形成的丸粒等离子体团间歇地脱离丸粒烧蚀位置，并且脱离的等离子体团被输送穿过约束场。分离等离子体团在100 kHz时循环发展，在10 μs的寿命内沿与弹丸运动方向相反的方向，即向低磁场一侧非扩散地传输约15 cm。这一观察结果对弹丸烧蚀位置与有效粒子沉积轮廓之间的差异给出了合理的解释。

项目成果

Observation ofCross-Field Transport of Pellet Plasmoid in Large Helical Device

大型螺旋装置中颗粒等离子体团跨场传输的观察

• 发表时间: 2011
• 期刊: Plasma and Fusion Research
• 影响因子: 0.8
• 作者: M. Kikuchi;K. Lackner;M.Q. Tran (ed);M. Kikuchi;M.Kikuchi;菊池 満;菊池満;R. Sakamoto and H. Yamada
• 通讯作者: R. Sakamoto and H. Yamada

Observation of three-dimensional motion of the pellet ablatant in the Large Helical Device

• DOI: 10.1088/0029-5515/51/8/083039
• 发表时间: 2011-08-01
• 期刊: NUCLEAR FUSION
• 影响因子: 3.3
• 作者: Mishra, J. S.;Sakamoto, R.;Yamada, H.
• 通讯作者: Yamada, H.

固体水素ペレット溶発動態の相補的観測

固体氢丸烧蚀动力学的补充观察

• 发表时间: 2010
• 作者: I. Yamada;et al.(11名中1番目);坂本隆一
• 通讯作者: 坂本隆一

Observation of Intermittent Breakaway of Pellet Plasmoid in LHD

LHD 中颗粒等离子体团间歇性脱离的观察

• 发表时间: 2010
• 期刊: Europhysics Conference Abstracts
• 作者: R. Sakamoto;et al.
• 通讯作者: et al.

Observation of IntermittentBreakaway of Pellet Plasmoid in LHD

LHD中颗粒等离子体团间歇性断裂的观察

• 发表时间: 2010
• 作者: R. Sakamoto;et al
• 通讯作者: et al