"Version: 20231101"--Title page verso.Includes bibliographical references.1. Introduction -- 1.1. High-Z impurity accumulation -- 1.2. Carbonization and boronization -- 1.3. Impurity transport2. Transport model -- 2.1. Atomic processes -- 2.2. Neoclassical and turbulent transport in the closed-flux surface (core) region -- 2.3. Transport in the open-flux surface region3. Diagnostics -- 3.1. Int…