产生放射性核束的厚靶的物理设计  

CONCEPT DESIGN OF A THICK TARGET FOR GENERATING RADIOACTIVE ION BEAM

作　　者：张焱[1] 蒋渭生[1] 关遐令[1] 

机构地区：[1]中国原子能科学研究院核物理研究所

出　　处：《原子能科学技术》1998年第1期38-42,共5页Atomic Energy Science and Technology

摘　　要：介绍用来产生放射性核束的厚靶的物理设计过程，提出对靶材料特性和温度条件的严格要求，列举了几种候选靶材，设计了１个石墨靶衬并合理安排靶的水冷散热结构，计算了厚靶的三维温度分布情况。计算结果表明：此厚靶完全能够承受最高达１４ｋＷ的质子束入射束流功率，靶的温度可以根据不同要求控制在１３００—２０００℃。Concept design procedure of a thick target used to generate radioactive ion beam(RIB) is introduced,several requirements to the target material are presented and some candidate materials are listed too.A graphite target matrix and its water cooling heat sink system are designed and the three dimensional temperature distributions of the target are calculated.The result shows that the target can bear the hit of proton beam at power of 14 kW and the temperature can be controlled within the range of 1300—2000 ℃ in accordance with different demands.

关 键 词：放射性核束 厚靶 散热结构 同位素分离器 

分 类 号：TL503.4[核科学技术—核技术及应用]