用于PET衰减校正的<sup>68</sup>Ge线源的制备

用于PET衰减校正的⁶⁸Ge线源的制备

摘要: 以硅胶为载体，采用吸附法制备了一种用于PET衰减校正的⁶⁸Ge线源，并对制备的⁶⁸Ge线源进行了质量检验。结果表明，硅胶对68Ge的吸附率高、吸附均匀性好，⁶⁸Ge线源密封良好，无泄露、无表面污染、活度分布均匀，各项物理参数均达到国外同类产品水平。

Abstract: ⁶⁸Ge line sources used for PET attenuation correction were introduced by adsorption method with silical gel as substrate, and the quality examination of ⁶⁸Ge line source was performed. The results showed that the adsorption rate of silical gel for adsorbing Ge was high, and the distribution uniformity of the ⁶⁸Ge on silical gel was well, the ⁶⁸Ge line source was sealed well, the surface was pollution-free, and the activity of the ⁶⁸Ge line source was distributed evenly. The physics properties of the source achieved the same level of the product abroad on the whole.