可控核聚变深度：核聚变产业进程加速，多技术路线并行发展

Investment Rating - The report maintains an "Overweight" rating for the nuclear fusion industry, indicating a positive outlook for investment opportunities in this sector [6]. Core Insights - Nuclear fusion is expected to become the ultimate energy source, with accelerated industrial progress driven by policy, capital support, and advancements in AI technology [1][6]. - The industry is optimistic about the feasibility of nuclear fusion power generation, with approximately 84% of surveyed companies believing it can be achieved by 2040 [1]. - Various technical routes for nuclear fusion are being explored, with the Tokamak being the most mature and widely applied technology [2][6]. Summary by Sections 1. Nuclear Fusion as the Ultimate Energy Source - Nuclear fusion combines light atomic nuclei under high temperature and pressure to release significant energy, offering high energy density and safety advantages [1][18]. - The industry is optimistic about the engineering feasibility of nuclear fusion, with AI developments accelerating the commercialization process [30][36]. - Current challenges include energy balance, material performance, and tritium self-sustainability, which are being addressed through increased industrial efforts [41][42]. 2. Diverse Technical Routes for Nuclear Fusion - Nuclear fusion can be categorized into gravitational, magnetic, and inertial confinement, with magnetic confinement being the most viable option [46]. - The Tokamak technology is highlighted as the most mature and widely used, with significant advancements in plasma stability and engineering feasibility [55]. 3. Cost Structure of Tokamak Components - Major cost components of Tokamak include magnets, vacuum chambers, and other supporting systems, with superconducting magnets being a key focus for enhancing plasma confinement [3][4]. - The report emphasizes the importance of high-temperature superconducting materials in improving fusion reaction rates and reducing cooling costs [3]. 4. Global Support for Nuclear Fusion Industry - Governments and capital markets worldwide are increasingly investing in nuclear fusion, with several demonstration projects planned for construction between 2035 and 2040 [36]. - Key companies to watch include those involved in superconducting magnets, vacuum chambers, and other critical components, such as Western Superconducting Technologies and Shanghai Electric [4]. 5. Related Companies - The report suggests monitoring companies like Western Superconducting Technologies, Lianchuang Optoelectronics, and others involved in various aspects of the nuclear fusion supply chain [4].