Nuclear purity

 作者:易菩     |      日期:2019-03-07 06:17:00
By Barry Fox Plutonium generated by nuclear plants is often contaminated with highly radioactive americium and lanthanides. The material is usually purified with potassium chloride, but this process is slow and even when repeated, it strips out only 90 per cent of the americium. A better way, according to Britain’s Ministry of Defence, is to mix molten plutonium with molten calcium chloride and magnesium chloride in an inert argon atmosphere (GB 2355107). The contaminants are drawn out of the plutonium into the chloride mixture,