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随着原子能和平利用的发展,所产生的放射性废物也日益增多,这些放射性废物如果不很好地加以处理,会严重地损害居民的健康。放射性废物到底从那里来的呢?各种反应堆在运转中都不可避免地产生一批复杂的副产物,其中以在裂变过程中生成的为最多。因为铀-235在中子轰击下分裂,产生质量数大概从70到160的共约三十种以上元素的同位素。这些裂变产物都以不同的量生成,大部分是固体,有些是气体,并且大部分在形成时是具
With the development of the peaceful use of atomic energy, the radioactive waste generated is also increasing. If these radioactive wastes are not properly handled, their health will be seriously damaged. Where does the radioactive waste come from? A variety of reactors inevitably produce a complex array of by-products in operation, with the most being generated during fission. Because uranium-235 breaks apart by neutron bombardment, it produces isotopes of about 30 or more elements in masses ranging from 70 to 160. These fission products are all produced in different amounts, mostly solid, some gas, and most are formed