10月21日 Multi driver simulations of the SPIDER negative ions source

报告题目：Multi driver simulations of the SPIDER negative ions source

报告时间：2026年10月21日（星期三）15:30

报告地点：四号楼三楼中间会议室

报 告 人：Prof. Roman Zagórski (National Centre for Nuclear Research, Poland)

主 持 人：韦江龙

报告简介：

The negative ion source prototype of ITER neutral beam injector (SPIDER) was built at Consorzio RFX (Padua, Italy) and comprises eight driver volumes where radio frequency (RF) power is inductively coupled to the plasma electrons and an expansion chamber with a magnetic filter. 

This study outlines the fundamental physical and numerical principles of the fluid model for the SPIDER negative ion source. The model implemented in the numerical code FSFS2D provides a self-consistent two-dimensional description of the source, encompassing neutral gas dynamics, plasma chemistry, RF coupling in the source driver, and plasma transport via the magnetic filter. The results of simulations are compared to the experimental data from SPIDER device.

报告人简介：

Prof. Roman Zagórski received the master’s degree in applied physics from the Military Technical University of Warsaw, Poland, in 1983, the master’s degree in applied mathematics from the University of Warsaw, Poland, in 1986, and the Ph.D. and Habilitation degrees in physics from the Institute of Nuclear Problems, Poland, in 1992 and 1999, respectively. From 1983 to 2019, he was with the Institute of Plasma Physics and Laser Microfusion, Poland, with a focus on theoretical investigations and numerical modeling of magnetically confined plasmas. Since 2020, he has been working at the National Centre for Nuclear Research, Poland. He is currently seconded to the RFX Consorzio, Italy, to work on the Neutral Beam Test Facility Project (NBTF).