A High-Temperature Gas-Cooled Reactor (HTGR) is a type of nuclear reactor that uses helium gas as a coolant and graphite as a moderator. It operates at higher temperatures than traditional reactors, allowing for more efficient energy production and the potential for hydrogen generation. HTGRs are designed to enhance safety and reduce the risk of accidents. These reactors can be used for various applications, including electricity generation and process heat for industrial uses. The high operating temperature also enables the use of advanced materials, which can improve performance and longevity. HTGR technology is part of ongoing research in the field of nuclear energy.