@inproceedings{oai:repo.qst.go.jp:00054546, author = {Yonehara, Hidenori and Iwaoka, Kazuki and Toshikazu, Suzuki and 米原 英典 and 岩岡 和輝}, book = {NATURALLY OCCURRING RADIOACTIVE MATERIAL (NORM VII)}, month = {Jan}, note = {In this study dose assessment of workers using typical industrial NORMs was carried out to obtain information for the future regulation system in Japan. Annual effective dose to workers was estimated using results of measurement of ambient dose rate and activity concentration of NORM in raw materials, products, and aerosols, as well as concentrations of 222Rn and 220Rn decay products in the environments of worksites of plant processing zirconium ore, monazite and titanium ore in Japan. From the results of dose assessment, relationship between concentration of NORM and average annual dose to worker was discussed.}, publisher = {IAEA}, title = {Exposure assessment of workers using industrial NORM in Japan}, year = {2015} }