Preface to the special issue on Advanced Nuclear Materials

Nuclear power provides access to clean, reliable and affordable energy, and plays a signifi cant role in the global energy structure(～ 10% of the world’s electricity). As a low-carbon source of energy, it mitigates the negative impacts of environmental pollution and climate change, and therefore, the development of advanced nuclear energy systems including both fusion and fission is expected to going smoothly in the coming decades. The most advanced and largest fusion device,