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加速器驱动的次临界系统(ADS)是一种能够有效进行长寿命放射性核素嬗变的先进核能系统。ADS的工作原理是依靠强外中子源驱动次临界反应堆,以维持链式裂变反应,实现稳定运行和功率输出。强流质子加速器驱动的散裂中子源是ADS中子源的重要选择。此类型中子源具有特殊的物理特性,如显著的非均匀性、高能性和脉冲性(加速器脉冲工作模式下)。强外源的特殊物理特性会给ADS次临界反应堆的中子学响应带来显
Accelerator-driven subcritical system (ADS) is an advanced nuclear energy system that can effectively transmute long-lived radionuclides. The working principle of ADS is to rely on the strong external neutron source to drive the subcritical reactor to maintain the chain fission reaction and achieve stable operation and power output. Strong proton accelerator driven spallation neutron source is an important choice of ADS neutron source. This type of neutron source has special physical properties such as significant inhomogeneity, high energy and pulsation (in accelerator pulse mode). Strong exogenous special physical properties will bring significant neutron response to the ADS subcritical reactor