球形托卡马克 device in CHINA; data sourced from IAEA 2022 survey.
EXL-50 is a fusion device or design surveyed by the IAEA in 2022. EXL-50 is the Chinese first medium-sized experimental spherical tokamak. It was built by the ENN Group, a Chinese energy company. The first plasma discharge without solenoid was obtained in 2019. The EXL-50 is also part of the ENN Compact Fusion Project, funded by the private company ENN Group.
Purpose
The main purpose of EXL-50 is to simplify engineering requirements of a fusion device. One of the key experimental objectives of the EXL-50 is to test the efficiency of the electron cyclotron resonance heating and the current drive in the absence of the central solenoid magnet.
Technical data
- Device type: Spherical Tokamak
- Status (2022): Operating
- Ownership: Public
- Major radius: 0.58 m
- Minor radius: 0.41 m
- Plasma current: 0.5 MA
- Toroidal field: 0.45 T
- Pulse length: 5s
Reference
国际原子能机构（IAEA），《World Survey of Fusion Devices 2022》，第 24 页（报告印刷页码）