Recommendations for using computating methods of percutaneous human body’s absorption of uranium hexafluoride

The main purpose of this work is to present a technique for calculating the parameters characterizing the radiation effects of uranium hexafluoride UF₆ (the only gaseous product of uranium) on the human body. Uranium hexafluoride is used in enriching natural uranium with isotope U²³⁵. We examined the situation of percutaneous human body’s absorption of these products during the production mode. We solved some problems to ensure labour safety at enrichment plants. Moreover, we calculated the following values: radiation dose and the maximum permissible activity and weight values of annual uranium skin absorption, as well as the maximum allowable volume density of activity in the indoor air, the maximum allowable surface density of uranium activity on the skin and industrial surfaces; the volume density of uranium atoms concentration in the air; power flux density of the uranium atoms source F₀. In calculating these parameters we based on computing methods of describing percutaneous penetration of uranium into the human body and maximum permissible dose of uranium given in the rules of radiation safety (NRB-99).

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