The resuspension of radioactive dusts in fires
When deposits of radioactive dusts are exposed to fire, particles can be resuspended to form a radioactive aerosol. Deposits of radioactive dust are found inside glove boxes that are used for handling radioactive substances e.g. in the manufacture of nuclear fuel materials. An accidental fire in a nuclear facility could thus release a radioactive aerosol if the normal radio-protection barriers are destroyed. To assess the potential health hazard resulting from such an accident, and also to optimise the safe design of such installations, information is required on the factors affecting the degree of resuspension likely to be encountered. Experimental results are reported here on the resuspension of particles of the fast reactor fuel material uranium-plutonium oxide from a variety of substrates. Both combustible and non-combustible substrates were investigated as was the dependence of resuspension on particle size. For comparison an experiment was also made using dried uranium-plutonium nitrate solution to simulate a chemical spillage. These experiments complement a series of large scale experiments carried out in this laboratory using non-radioactive particles.
Bibliographic Reference: Paper presented: European Aerosol Conference, Wien (AT), Sept. 18-23, 1989
Availability: Available from (1) as Paper EN 34842 ORA
Record Number: 198910894 / Last updated on: 1994-12-01
Original language: en
Available languages: en