11. Within one month, radioactive particles were noted by CTBTO stations in the southern hemisphere. 12. Two hydrogen bombs ruptured, dispersing radioactive particles over nearby farms. 13. When a radioactive particle decays and strikes the photo luminescent material a photon is released. 14. In the 1990s, methods for using fluorescent microspheres became a common substitute for radioactive particles . 15. He is proudest of his concentric water flow design to filter radioactive particles from water. 16. Careful washing of exposed body surface, removing the radioactive particles , may provide significant dose reduction. 17. The air of a nuclear reactor goes through special tarred filters, which intercept radioactive particles . 18. Devices that resemble big vacuum cleaners and suck gases and radioactive particles from the atmosphere. 19. Such weapons use conventional explosives to spread radioactive particles . 20. The machine, which emits radioactive particles that kill cancer cells, will be used on the animals.
