辐照装置剂量场不均匀度的好坏直接影响到产品质量与照射成本 ,而空场不均匀度主要是由辐照装置源棒排布决定的。本文结合江苏里下河地区农科所 1 989年、1 993年、1 995年和 1 998年 4次增源情况 ,对环状辐射源、栅板状辐射源源棒排布方案的确定进行了探讨 Irradiation device dose field non-uniformity of the quality of a direct impact on product quality and irradiation costs, and the spatial heterogeneity is mainly determined by the source rod arrangement of the irradiation device. In this paper, based on the situation of four sources of agricultural sciences in Lixiahe area of ​​Jiangsu Province in 1989, 1993, 1995 and 1988, the determination of source rod layout of annular radiation source and grid radiation source was carried out Discussion