The purpose of this work was the non-destructive characterization by gamma spectrometry of a collector's item in which uranium was used as a colouring agent. Such characterization was based on the calculation of the counting efficiency as a function of energy using the LabSOCS software from Canberra Industries. The activity concentrations obtained for the uranium isotopes were verified: i) from the measurement of two different positions of the test piece, ii) from the indirect calculation of the percentage by mass of U₃O₈ (wt%) and iii) from the ambient dose equivalent rate H*(10) using the MCNP code. The activity concentrations obtained for ²³⁸U (9031 ± 2919 Bq kg⁻¹) and ²³⁵U (472 ± 23 Bq kg⁻¹) led to the conclusion that it was natural uranium. The value of the rate of ambient dose equivalent H*(10) in contact was 390 nSv h⁻¹, which corresponds to twice the natural background. The U₃O₈ content obtained was 0.213 ± 0.013%.

这项工作的目的是通过伽马光谱法对使用铀作为着色剂的收藏品进行无损表征。这种表征基于使用 Canberra Industries 的 LabSOCS 软件计算的作为能量函数的计数效率。对铀同位素获得的活度浓度进行了验证：i) 通过测量试样的两个不同位置，ii) 通过间接计算 U ₃ O ₈ (wt%) 的质量百分比和 iii) 从使用 MCNP 代码的环境剂量当量率H *(10)。²³⁸ U (9031 ± 2919 Bq kg ^-1 ) 和²³⁵U (472 ± 23 Bq kg ^-1 ) 得出它是天然铀的结论。接触中的环境剂量当量H *(10) 的值为390 nSv h ^-1，相当于自然本底的两倍。得到的U ₃ O ₈含量为0.213±0.013%。