甲状腺内¹³¹I放射性活度与辐射探测结果的比例关系与甲状腺几何尺寸、探测距离等因素相关，是估算甲状腺内¹³¹I含量与其可能造成的辐照损伤的关键参数。基于MCPT辐射输运数值模拟算法器库开发了用于开展NaI探测器伽马辐射测量模拟的应用程序，进而建立了多组具有不同容积的甲状腺型容器和不同探测距离的物理模型，最终通过蒙特卡罗数值计算得到了不同测量状态下探测器的探测效率。在甲状腺型容器与探测器距离较远时，数值模拟给出的结果与理论计算结果一致，证明此应用程序可用于定量分析NaI的探测效率。数值模拟结果表明，小距离模型的结果受甲状腺样容器的大小和距离的显著影响，模拟给出的探测效率表为开展深入细致的实验研究奠定了基础。

Targets have been developed to measure supersonic radiation transport in aerogel foams using absorption spectroscopy. The target consists of an aerogel foam uniformly doped with either titanium or scandium inserted into an undoped aerogel foam package. This creates a localized doped foam region to provide spatial resolution for the measurement. Development and characterization of the foams is a key challenge in addition to machining and assembling the two foams so they mate without gaps. The foam package is inserted into a beryllium sleeve and mounted on a gold hohlraum. The target is mounted to a holder created using additive manufacturing and mounted on a stalk. The manufacturing of the components, along with assembly and metrology of the target are described here.