Szewczak Kamil, Jednoróg Sławomir, Krajewski Paweł
Central Laboratory for Radiological Protection, Warsaw, Poland.
Nucl Med Rev Cent East Eur. 2013;16(2):62-5. doi: 10.5603/NMR.2013.0036.
Presented paper describes the results of the individual doses measurements for ionizing radiation, carried out by the Laboratory of Individual and Environmental Doses Monitoring (PDIS) of the Central Laboratory for Radiological Protection in Warsaw (CLOR) for the medical staff employees in several nuclear medicine (NM) departments across Poland. In total there are48 NM departments in operation in Poland [1] (consultation in Nuclear Atomic Agency). Presented results were collected over the period from January 2011 to December 2011 at eight NM departments located in Krakow, Warszawa (two departments), Rzeszow (two departments), Opole, Przemysl and Gorzow Wielkopolski. For radiation monitoring three kinds of thermo luminescence dosimeters (TLD) were used. The first TLD h collected information about whole body (C) effective dose, the second dosimeter was mounted in the ring (P) meanwhile the third on the wrist (N) of the tested person. Reading of TLDs was performed in quarterly periods. As a good approximation of effective and equivalent dose assessment of operational quantities both the individual dose equivalent Hp(10) and the Hp(0.07) were used. The analysis of the data was performed using two methods The first method was based on quarterly estimations of Hp(10)q and Hp(0.07)q while the second measured cumulative annual doses Hp(10)a and Hp(0.07)a. The highest recorded value of the radiation dose for quarterly assessments reached 24.4 mSv and was recorded by the wrist type dosimeter worn by a worker involved in source preparation procedure. The mean values of Hp(10)q(C type dosimeter) and Hp(0.07)q (P and N type dosimeter) for all monitored departments were respectively 0.46 mSv and 3.29 mSv. There was a strong correlation between the performed job and the value of the received dose. The highest doses always were absorbed by those staff members who were involved in sources preparation. The highest annual cumulative dose for a particular worker in the considered time period was 4.22 mSv for Hp(10)a and 67.7 mSv for Hp(0.07)a. In 2011 no case of exceeding the allowed dose limits was noted.
本文介绍了华沙中央放射防护实验室（CLOR）的个人与环境剂量监测实验室（PDIS）对波兰多个核医学（NM）科室医务人员进行的电离辐射个人剂量测量结果。波兰共有48个核医学科室在运营[1]（核子原子能机构咨询数据）。呈现的结果是在2011年1月至2011年12月期间，从位于克拉科夫、华沙（两个科室）、热舒夫（两个科室）、奥波莱、普热梅希尔和大波兰地区戈茹夫的8个核医学科室收集的。为进行辐射监测，使用了三种热释光剂量计（TLD）。第一种TLD收集有关全身（C）有效剂量的信息，第二种剂量计佩戴在手指（P）上，而第三种佩戴在受测人员的手腕（N）上。TLD的读数每季度进行一次。作为操作量有效剂量和当量剂量评估的良好近似值，使用了个人剂量当量Hp(10)和Hp(0.07)。数据分析采用两种方法。第一种方法基于对Hp(10)q和Hp(0.07)q的季度估算，而第二种方法测量年度累积剂量Hp(10)a和Hp(0.07)a。季度评估中记录到的最高辐射剂量值达到24.4 mSv，是由一名参与源制备程序的工作人员佩戴的手腕型剂量计记录的。所有监测科室的Hp(10)q（C型剂量计）和Hp(0.07)q（P型和N型剂量计）的平均值分别为0.46 mSv和3.29 mSv。所执行的工作与所接受剂量的值之间存在很强的相关性。最高剂量总是被那些参与源制备的工作人员吸收。在所考虑的时间段内，特定工作人员的最高年度累积剂量，对于Hp(10)a为4.22 mSv，对于Hp(0.07)a为67.7 mSv。2011年未发现超过允许剂量限值的情况。
