H-mode transition and pedestal studies

The high confinement mode (H-mode) is the widely adopted standard operation scenario for the path to fusion in toroidal confinement devices. Since its discovery in 1982, the H-mode and access to the H-mode (the low to high and high to low transitions) remain two of the most actively researched areas in magnetically confined fusion programmes across the world. Significant progress has been made in the understanding of the intricate H-mode phase dynamics in recent years, from improvement in experimental diagnostic capability, theoretical development and modelling. The 'H-mode transition and pedestal studies' Special Issue provides a timely overview of recent progress in the study of H-modes covering experimental studies, further theoretical inquiry and computational modelling.This article is part of a discussion meeting issue 'H-mode transition and pedestal studies in fusion plasmas'.

Automated summary

The high confinement mode (H-mode) is the standard operating scenario for fusion in toroidal confinement devices. Access to and understanding of the H-mode have been actively researched in magnetically confined fusion programmes worldwide. Recent progress in experimental capabilities, theoretical development, and modelling have advanced the understanding of the intricate dynamics of the H-mode phase. The 'H-mode transition and pedestal studies' Special Issue provides a comprehensive overview of recent progress in H-mode research, including experimental studies, theoretical inquiry, and computational modelling.