Comparative Study of High-Beta/Low-q Compact Torus Plasmas

高β/低q致密环面等离子体的比较研究

• 批准号: 10044128
• 负责人: ONO Yasushi
• 金额: $ 3.78万
• 依托单位: University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B).
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10044128/
• 关键词: Compact Torus; Spherical Tokamak; Field-Reversed Configuration; High-Beta; Second Stability; Spheromak; Ballooning Instability; Low-q Operation; 高ベータ化; 第2安定化; 第2安定化領域; 低qトーラスプラズマ; 球状逆転磁場ピンチ

We made the first boundary study of compact toroids, especially between spherical tokamak (ST) and Field-Reversed Configuration (FRC) : (1) ultra-high-beta ST formation in the boundary regime between ST and FRC, (2) US-Japan collaboration for this high-beta ST formation in NSTX ST experiment, (3) joint symposiums of ST and FRC : IAEA-Technical Committee Meeting (TCM) at Univ.Tokyo and US-Japan FRC-ST Workshop at Univ.Washington, (4) University of Tokyo Symposium 2000 on Magnetic Reconnection in Space and Laboratory Plasmas and (5) joint proposal of FRC NBI injection experiment SPRIT.Based on the US-Japan agreement, the TS-3 experiment produced the ultra-high beta ST by applying the external toroidal field to an FRC.The theoretical collaboration study among Univ.Tokyo, Princeton Univ. and GA revealed that this ST with β=60-70% is the first high-bata ST in the second stability regime. This result was reported in in the Annual Meeting 99 of American Physical Society and IAEA Fusion Energy Conference 2000 and also lead us to the US-Japan joint experiment of ultra-high beta ST formation in NSTX ST experiment (Princeton Univ.). The NSTX experiment attained both the confinement time as long as 0.1s and beta as high as 20%. The ST-FRC boundary research has received increased attention and was connected to the IAEA-TCM at Univ. Tokyo and the US-Japan Workshop of ST and FRC, the first ST-FRC joint meeting. The new NBI experiment of FRC and ST was also proposed in Princeton Univ based on those boundary study.

我们首次对紧凑环的边界进行了研究，特别是球形托卡马克（ST）和场反向配置（FRC）之间的边界研究：（1）ST和FRC之间边界区域的超高β ST形成，（2）美日合作在NSTX ST实验中形成这种高β ST，（3）ST和FRC联合研讨会：在东京大学举行的原子能机构技术委员会会议和在华盛顿大学举行的美日FRC-ST讲习班，（4）2000年东京大学空间和实验室等离子体磁重联研讨会;（5）FRC NBI注入实验SPRIT的联合提案。日本协议，TS-3实验通过向FRC施加外环向场产生了超高β ST，东京大学、普林斯顿大学和GA的理论合作研究表明，该ST（β=60-70%）是第一个处于第二稳定区的高β ST。这一结果在美国物理学会第99届年会和IAEA聚变能大会2000上作了报告，并导致我们在NSTX ST实验（普林斯顿大学）中进行了美日联合的超高β ST形成实验。NSTX实验获得了长达0.1s的约束时间和高达20%的β。ST-FRC边界研究受到越来越多的关注，并与东京大学的IAEA-TCM以及第一次ST-FRC联合会议ST和FRC的美日研讨会相联系。在此基础上，普林斯顿大学提出了FRC和ST的NBI实验方案。

项目成果

A.L.Balandin, Y.Ono and T.Tawara: "Design Study of 3-D Tomography Diagnostics for Spherical Tokamaks"European Physical Journal D.

A.L.Balandin、Y.Ono 和 T.Tawara：“球形托卡马克 3-D 断层扫描诊断的设计研究”欧洲物理杂志 D。

小野.井.桂井: "プラズマ合体を用いた磁気リコネクション室内実験"核融合研究. 75・4. 467-479 (1999)

小野胜井：“利用等离子体合并的磁重联实验室实验”Fusion Research 75・479（1999）。

Y.Ono and M.Inomoto: "Ultra-High Beta Spherical Tokamak Formation by Use of Oblate Field-Reversed Configuration"Physics of Plasmas. 7・5. 1863-1869 (2000)

Y.Ono 和 M.Inomoto：“利用扁圆场反转构型形成超高 Beta 球形托卡马克”等离子体物理学 7・5（2000 年）。

Y.Ono el al.: "Ultra-High-Beta Spherical Tokamak with Absolute minimum Bin TS-3 Spherical Torus Experiment"Fusion Eergy 2000.

Y.Ono 等人：“具有绝对最小 Bin TS-3 球形环面实验的超高 Beta 球形托卡马克”Fusion Eergy 2000。

M.Inomoto,Y.Ueda,Y.Ono et al.: "High-Power Initial Heating of Compact Tours by Meards of Merging Effects"Fusion Energy 1998.

M.Inomoto、Y.Ueda、Y.Ono 等人：“通过合并效应实现紧凑型旅行的高功率初始加热”Fusion Energy 1998。