Overview of the SPARC tokamak
Overview of the SPARC tokamak
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DOI：
10.1017/s0022377820001257
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发表时间：
2020-10-01
影响因子：
2.5
通讯作者：
Zhu, J.
中科院分区：
文献类型：
--
作者：
Creely, A. J.;Greenwald, M. J.;Zhu, J.
托卡马克是迈向商业聚变能源的关键一步。托卡马克是一个高场（B-0 = 12.2 T）、紧凑型（R-0 = 1.85 m，a = 0.57 m）、超导、D-T托卡马克，其目标是首次从磁约束聚变等离子体中产生聚变增益Q > 2的装置。目前正在设计中的托卡马克将继续Alcator系列托卡马克的高场路径，利用基于稀土钡铜氧化物高温超导体的新磁体，在紧凑的设备中实现高性能。Q > 2的目标在保守物理假设（H-98，H-y2 = 0.7）下是可实现的，并且在H-98，H-y2 = 1的标称假设下，预计Q将达到约11，P-聚变将达到约140 MW。因此，该实验室将构成一个独特的平台，用于与聚变发电厂有关的高密度（< n（e）>约为3 x 10（20）m（-3））、高温（< Te >约为7 keV）和高功率密度（P-聚变/V-等离子体约为7 MWm（-3））的燃烧等离子体物理研究。介绍了超导体在通向商业聚变能的道路上的地位、参数和超导体设计工作的现状。这项工作还描述了全球性能预测的基础，并总结了一些物理分析，这些分析在本系列的配套文章中有更详细的介绍。
The SPARC tokamak is a critical next step towards commercial fusion energy. SPARC is designed as a high-field (B-0 = 12.2 T), compact (R-0 = 1.85 m, a = 0.57 m), superconducting, D-T tokamak with the goal of producing fusion gain Q > 2 from a magnetically confined fusion plasma for the first time. Currently under design, SPARC will continue the high-field path of the Alcator series of tokamaks, utilizing new magnets based on rare earth barium copper oxide high-temperature superconductors to achieve high performance in a compact device. The goal of Q > 2 is achievable with conservative physics assumptions (H-98,H- y2 = 0.7) and, with the nominal assumption of H-98,H- y2 = 1, SPARC is projected to attain Q approximate to 11 and P-fusion approximate to 140 MW. SPARC will therefore constitute a unique platform for burning plasma physics research with high density (< n(e)> approximate to 3 x 10(20) m(-3)), high temperature (< Te > approximate to 7 keV) and high power density (P-fusion/V-plasma approximate to 7 MWm(-3)) relevant to fusion power plants. SPARC's place in the path to commercial fusion energy, its parameters and the current status of SPARC design work are presented. This work also describes the basis for global performance projections and summarizes some of the physics analysis that is presented in greater detail in the companion articles of this collection.