Nuclear Physics and Techniques Laboratory, Faculty of Sciences Semlalia, BP.2390, University of Cadi Ayyad, Marrakech, Morocco (URAC-15 Research Unit Associated to the CNRST, Rabat, Morocco).
Health Phys. 2021 Feb 1;120(2):177-190. doi: 10.1097/HP.0000000000001298.
Pottery objects are presently more and more used for decoration in homes and hotels. To assess radiological hazards to potters, 238U, 232Th, 222Rn, and 220Rn radionuclides were analyzed in different clay body samples used for pottery production by means of CR-39 and LR-115 II track detectors. Data obtained were compared to those gotten by means of isotope dilution mass spectrometry. Annual equivalent doses to the skin of potters resulting from the energy loss of alpha-particles emitted by the radionuclides of the 238U and 232Th radioactive families were evaluated. Estimates of the annual equivalent doses to the skin of potters due to the emitted alpha-particles ranged between 6.45 mSy y-1 cm-2 and 17.50 mSy y-1 cm-2 and between 1.87 mSy y-1 cm-2 and 5.33 mSy y-1 cm-2, respectively. Annual equivalent doses received by the skin of potters due to beta-particles (β-) emitted by the radionuclides of the 238U and 232Th series inside the studied clay body samples were determined. Alpha equivalent doses to the skin of potters resulting from the diffusion of 222Rn and 220Rn gases present in the studied clay body samples were calculated. A total maximum annual equivalent dose of 23.0 mSv y-1 cm-2, resulting from the energy loss of alpha and beta minus particles emitted by the radionuclides of the 238U and 232Th series, was found for potters working 8 h d-1(6 d wk-1, 49.28 wk y-1).
陶器制品目前越来越多地被用于家庭和酒店的装饰。为了评估制陶工人的辐射危害，使用 CR-39 和 LR-115 II 径迹探测器分析了用于制作陶器的不同粘土体样本中的 238U、232Th、222Rn 和 220Rn 放射性核素。所得数据与同位素稀释质谱法获得的数据进行了比较。评估了 238U 和 232Th 放射性系中放射性核素的α粒子能量损失对制陶工人皮肤的年当量剂量。由于发射的α粒子，制陶工人皮肤的年当量剂量估计值在 6.45 mSv y-1 cm-2 和 17.50 mSv y-1 cm-2 之间，在 1.87 mSv y-1 cm-2 和 5.33 mSv y-1 cm-2 之间。确定了研究粘土体样本中 238U 和 232Th 系列放射性核素发射的β-（β-）粒子对制陶工人皮肤的年当量剂量。计算了研究粘土体样本中存在的 222Rn 和 220Rn 气体扩散对制陶工人皮肤的α当量剂量。从 238U 和 232Th 系列放射性核素发射的α和β-粒子的能量损失得出，制陶工人每年最大的总当量剂量为 23.0 mSv y-1 cm-2，他们每天工作 8 小时（每周工作 6 天，每年工作 49.28 周）。
