Guest Editorial Special Issue on Selected Papers from the 28th IEEE Symposium on Fusion Engineering

With this Special Issue, we are publishing 81 peer-reviewed manuscripts, a selection from the best work presented in June 2019 at the 28th IEEE Symposium on Fusion Engineering (SOFE), Jacksonville, FL, USA. This is the sixth SOFE Special Issue that IEEE TRANSACTIONS ON PLASMA SCIENCE (TPS) has published, a tradition that started with the 2009 SOFE in order to afford attendees the opportunity to publish an expanded version of their oral or poster presentations in a refereed journal. It has become a popular option. With each successive SOFE, more authors take advantage of the possibility offered by TPS to have their conference papers gain wider exposure and be cited by others working in fusion engineering and its related disciplines. Readers benefit as well. For example, this issue features a total of 22 papers on ITER and Wendelstein 7-X, a unique collection of papers on two projects that sit at the forefront of fusion engineering.