The eye lens exposure among 16 technicians in two nuclear medicine departments at university hospitals in Finland was investigated by measuring the operational quantity H_p(3) using EYE-D dosemeters. For all workers, the annual mean H_p(3) was estimated to be 1.1 mSv (max. 3.9 mSv). The relation between H_p(3) to routinely monitored personal dose equivalent H_p(10) was clearly correlated. Considering individual dose measurement periods (2–4 weeks), the H_p(3)/H_p(10) ratio was 0.7 (Pearson’s coefficient r = 0.90, p < 0.001, variation of ratio 0.1–2.3). The variation decreased considerably with increasing H_p(10) (σ² = 0.04 vs. 0.43 for H_p(10) > 0.1 mSv vs. < 0.1 mSv, respectively), i.e. higher H_p(10) predicts H_p(3) more reliably. Moreover, annual H_p(10) data from national dose register during 2009–2018 were used to derive the annual H_p(3) applying the H_p(3)/H_p(10) ratio. The data from Finnish nuclear medicine departments imply that routine measurements of H_p(3) among nuclear medicine technicians are not justified.

中文翻译：

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芬兰两个核医学单位工作人员中HP（3）的估算。

通过使用EYE-D剂量计测量操作量H _p（3），调查了芬兰大学医院两个核医学科室的16名技术员的眼镜暴露情况。对于所有工人，年平均H _p（3）估计为1.1 mSv（最大3.9 mSv）。H _p（3）与常规监测的个人剂量当量H _p（10）之间的关系明确相关。考虑到单独的剂量测量周期（2-4周），H _p（3）/ H _p（10）的比率为0.7（皮尔森系数r  = 0.90，p  <0.001，比率为0.1-2.3）。随着H _p的增加，变化明显减小（10）（σ ²  = 0.04相对于0.43用于h _p（10）> 0.1毫与<0.1毫，分别地），即，较高ħ _p（10）预测ħ _p（3）更可靠。此外，使用2009-2018年国家剂量登记表中的年度H _p（10）数据，应用H _p（3）/ H _p（10）比率得出年度H _p（3）。芬兰核医学部门的数据表明，核医学技术人员对H _p（3）进行常规测量是不合理的。