基于5SDH-2串列加速器建立压水堆安全壳外模拟中子参考辐射场,主要装置之一是加速器中子源,以D(d,n)反应产生的5MeV中子作为加速器中子源,需制作氘气体靶。气体靶与固体靶相比较,它具有几个优点,本底低,核反应干扰小,核反应产额高等。靶的设计考虑因素主要有几个方面,是否有核反应干扰、是否高强度、导热性是否好等。下文 Based on the 5SDH-2 Tandem Accelerator, an analog neutron reference radiation field outside the PWR containment is established. One of the main devices is an accelerator neutron source. The 5MeV neutron produced by the D (d, n) reaction is used as the accelerator neutron source, Need to make deuterium gas target. Compared with the solid target, the gas target has several advantages, such as low background, small nuclear reaction interference and high nuclear reaction yield. The target design considerations are mainly several aspects, whether there is nuclear reaction interference, whether high strength, good thermal conductivity and so on. Below