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文章提出了在强~(60)Co源辐照装置里,为了获得最佳的辐射场分布,在双栅板源板上,设计出用单一比度源棒的一种理想可行的源棒排列方案。提出了衡量源棒排列设计的标准,即辐射场的不均匀度和累积照射量率的不均匀度。并绘出了等照射量率的分布曲线。
In order to obtain the best radiation field distribution in a strong ~ (60) Co source irradiation device, an ideal feasible source rod arrangement with a single-ratio source rod is designed on a dual-grid source plate Program. A criterion for measuring the arrangement of source bars is proposed, namely the nonuniformity of the radiation field and the nonuniformity of the cumulative exposure rate. And draw the equal dose rate distribution curve.