能散度对束输运和聚焦的影响  

Study of Beam Transport and Focusing Effected by its Initial EnergySpread

作　　者：王文斗[1] 冯莉[1] 王强[1] 李献文[1] 李平[1] 邓建军[1] 

机构地区：[1]中国工程物理研究院流体物理研究所,四川绵阳621900

出　　处：《信息与电子工程》2004年第3期219-221,231,共4页information and electronic engineering

摘　　要：为了分析不同能散度的入射束流在直线感应加速器加速段和聚焦段的行为,利用束包络计算模型进行了计算考察,给出束流不同能散度对聚焦焦斑造成模糊范围的大小。计算结果表明,降低入射束流的能散度可显著降低焦斑的模糊范围。同时通过近似计算给出了由于加速间隙电压波动引起束聚焦焦斑模糊范围增大的上限值。The behavior of beams with deferential initial energy spread in the accelerating section and focusing system has been described using the beam envelope model and its code. The relation between the blurred range of focal spot and initial energy spread is found out .The upper limit values of blurred area coverage of focal spot caused by the fluctuation of accelerating gap voltage are also calculated using a approximate method.

关 键 词：高能物理学 能散度 束包络 束输运 焦斑 直线感应加速器 

分 类 号：TL501.2[核科学技术—核技术及应用] TL501.5