Evaluation of thermal and beam-thermal p- 11 B fusion reactions in the EHL-2 spherical torus

• Published in: Plasma science & technology Vol. 27; no. 2; p. 24004
• Main Authors: LI 李, Zhi 直, SUN 孙, Tiantian 恬恬, LIU 刘, Bing 兵, WANG 王, Feng 丰, WU 吴, Xiangfeng 相凤, PENG 彭, Y-K Martin 元凯, XIAO 肖, Xiao 骁, (赵冠超), Guanchao ZHAO, (马连良), Lianliang MA, LI 李, Yingying 颖颖, LIN 林, Zhanhong 展宏, KONG 孔, Haozhe 浩喆, LIANG 梁, Yunfeng 云峰, XIE 谢, Huasheng 华生, DONG 董, Jiaqi 家齐, SHI 石, Yuejiang 跃江, LUO 罗, Di 迪, JIANG 姜, Xinchen 欣辰, WANG 王, Yumin 嵎民, GU 顾, Xiang 翔, WANG 王, Xueyun 雪韵, TAN 谭, Muzhi 沐芝, HUANG 黄, Hairong 海荣, YANG 杨, Danke 丹可, (蔡剑青), Jianqing CAI, (董力立), Lili DONG, WANG 王, Quanyun 泉云, LIU 刘, Minsheng 敏胜, Team, the EHL-2
• Format: Journal Article
• Language: English
• Published: 01.02.2025
• ISSN: 1009-0630; 2058-6272
• DOI: 10.1088/2058-6272/ad9da2

This paper presents the first comprehensive simulation study of p- 11 B fusion reactions in a spherical torus. We developed relevant program modules for fusion reactions based on energetic particle simulation frameworks and analyzed the two main fusion channels: thermal and beam-thermal. Using EHL-2 design parameters with and a hydrogen beam at 200 keV and 1 MW, our simulation indicates that p- 11 B reactions produce approximately α particles per second (~ 0.7 kW) from the thermal channel, and (~ 0.25 kW) from the beam-thermal channel. We conducted parameter scans to establish a solid physics foundation for the high ion temperature conditions ( designed for EHL-2. This work also laid the groundwork for studying various operation modes to explore different reaction channels. The simulation results suggest that the conditions in EHL-2 could be sufficient for investigating p- 11 B thermonuclear reactions. In addition, we found that EHL-2 offered good confinement for energetic particles, allowing us to research the interactions between these ions and plasmas. This research enhances our understanding of burning plasma physics.