The SPARC tokamak is a critical next step towards commercial fusion energy. SPARC is designed as a high-field ( T), compact ( m, m), superconducting, D-T tokamak with the goal of producing fusion gain 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 is achievable with conservative physics assumptions ( ) and, with the nominal assumption of , SPARC is projected to attain and MW. SPARC will therefore constitute a unique platform for burning plasma physics research with high density ( ), high temperature ( keV) and high power density ( ) 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.

中文翻译：

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SPARC 托卡马克概述

SPARC 托卡马克是迈向商业聚变能源的关键下一步。SPARC 被设计为一种高场 (T)、紧凑 (m、m)、超导、DT 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。目前正在设计中，SPARC 将延续 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型磁铁，在紧凑的设备中实现高性能。使用保守的物理假设 ( ) 可以实现 的目标，并且使用名义假设 ，SPARC 预计将达到 和 MW。因此，SPARC 将构成一个独特的平台，用于与聚变电站相关的具有高密度 ( )、高温 (keV) 和高功率密度 ( ) 的燃烧等离子体物理研究。SPARC' 介绍了在商业聚变能源道路上的地位、其参数和 SPARC 设计工作的现状。这项工作还描述了全局性能预测的基础，并总结了本系列的配套文章中更详细地介绍的一些物理分析。