Progress in the ITER physics basis, 4; Power and particle control

Loarte, A.*; Lipschultz, B.*; Kukushkin, A. S.*; Matthews, G. F.*; Stangeby, P. C.*; Asakura, Nobuyuki; Counsell, G. F.*; Federici, G.*; Kallenbach, A.*; Krieger, K.*; Mahdavi, A.*; Philipps, V.*; Reiter, D.*; Roth, J.*; Strachan, J.*; Whyte, D.*; Doerner, R.*; Eich, T.*; Fundamenski, W.*; Herrmann, A.*; Fenstermacher, M.*; Ghendrih, P.*; Groth, M.*; Kirschner, A.*; Konoshima, Shigeru; LaBombard, B.*; Lang, P.*; Leonard, A. W.*; Monier-Garbet, P.*; Neu, R.*; Pacher, H.*; Pegourie, B.*; Pitts, R. A.*; Takamura, Shuichi*; Terry, J.*; Tsitrone, E.*; ITPA Scrape-off Layer and Divertor Physics Topical Group*

Progress, since the ITER Physics Basis publication (1999), in understanding the processes that will determine the properties of the plasma edge and its interaction with material elements in ITER is described. Significant progress in experiment area: energy and particle transport, the interaction of plasmas with the main chamber material elements, ELM energy deposition on material elements and the transport mechanism, the physics of plasma detachment and neutral dynamics, the erosion of low and high Z materials, their transport to the core plasma and their migration at the plasma edge, retention of tritium in fusion devices and removal methods. This progress has been accompanied by the development of modelling tools for the physical processes at the edge plasma and plasma-materials interaction. The implications for the expected performance in ITER and the lifetime of the plasma facing materials are discussed.