【摘要】 用 4台HPGe探测器组成的γ γ符合测量装置 ,对标准源133Ba和134 Cs的放射性活度进行了测量。实验值与标称值间的相对偏差 ,除 1个样品为 0 9%外 ,其余 5个样品皆好于 0 2 %。更多还原

【Abstract】 Activities of the standard sources 133 Ba and 134 Cs are determined using four HPGe detectors by γ γ coincidence measurements. The experimental results are in good agreement with the standard values of samples. Relative deviations between them are less than 0.2 % except one sample of 133 Ba.更多还原