The IBR-2 (JINR) pulsed reactor is used in the field of solid state physics for experiments on extracted beams. It is predicted that the IBR-2 reactor will reach resource limits in 2032–2037. To keep and develop beam research at JINR, the development of a new pulsed neutron source has begun. According to estimates, the reactor will have average thermal power 12–15 MW, extracted by sodium coolant. At this power, the average flux density of thermal neutrons on the surface of the water moderator will reach 10¹⁴ sec^–1·cm^–2 and the peak density 5·10¹⁶ sec^–1·cm^–2, which is more than 10 times higher than the analogous parameters of the operating IBR-2 reactor. The new reactor is supposed to use neptunium-based fuel. The main characteristics and concept of the new reactor are presented.

IBR-2 (JINR) 脉冲反应器在固态物理领域用于提取光束的实验。预计 IBR-2 反应堆将在 2032-2037 年达到资源极限。为了保持和发展 JINR 的束流研究，已经开始开发新的脉冲中子源。据估计，反应堆的平均热功率为 12-15 MW，由钠冷却剂提取。在这个功率下，水慢化剂表面热中子的平均通量密度将达到 10 ¹⁴ sec ^–1 ·cm ^–2和峰值密度 5·10 ¹⁶ sec ^–1 ·cm ^–2，这比运行 IBR-2 反应器的类似参数高 10 倍以上。新反应堆应该使用基于镎的燃料。介绍了新型反应堆的主要特点和概念。