【摘要】 制作了Ａｇ２Ｃｒ２Ｏ７剂量计，并使用该剂量计测量了γ辐射场的剂量分布．结果表明：制作的剂量计重复性较好（１．３７％）．辐射场的角向剂量分布比较均匀，径向分布服从Ｄ．＝ｂ１Ｒ２＋ａ规律，垂直方向呈非均匀分布．还分析了影响剂量分布均匀性的因素，并提出了提高辐照均匀度的方法．更多还原

【Abstract】 The Ag 2Cr 2O 7 dosimeter was made, and the dose distribution in 60 Co γ field was measured with the dosimeter The results showed that reproducibility of the dosimeter is better (1 37%) The dose distribution of angular direction in the irradiation field is uniform The dose distribution of radius direction follows the law D.=b1R 2+a The dose distribution of perpendicular direction is not uniform The effective factors of uniformity in dose distribution was analyzed, and the method of improvement irradiation uniformty was suggested in this paper更多还原