Sentences with word «radiotoxicity»

This would generate at least a hundred times more electricity from used nuclear fuel and decrease the long - term radiotoxicity of the remaining wastes.

In a once - through fuel cycle, more than 98 percent of the expected long - term radiotoxicity is caused by the resulting neptunium 237 and plutonium 242 (with half - lives of 2.14 million and 387,000 years, respectively).

Calculations showed that the effective half - lives of these LLFPs could be drastically reduced so that total radiotoxicity at long cooling time domain will be efficiently reduced.

Some of the fission products that can not be destroyed in an ADS will still need to be stored in an underground depository because of the remaining radiotoxicity, explains Joachim Knebel of the Karlsruhe Institute of Technology in Germany.

PRISM can recycle used nuclear fuel, reducing repository size, and cutting the duration of its high radiotoxicity down to hundreds (rather than hundreds of thousands) of years, and thereby is in a position to play a key role in enabling a new, sustainable generation of nuclear power.

To make the technologically complex enterprise worthwhile, a reduction in the HLW radiotoxicity by a factor of at least one hundred is desirable.

«Of course, the heat load and the volume and amount of radiotoxicity are then much less» following ADS treatment, says Knebel.

Poneman said Monju came up in the discussions because of the possibility of using fast reactors to burn plutonium and the long - lived isotopes of elements such as neptunium and americium that account for much of the radiotoxicity of nuclear waste.

By the use of partitioning and transmutation (P&T) of the actinides and some of the long - lived fission products, the radiotoxicity of the high - level waste (HLW) and, possibly, the safety requirements for its geologic disposal can be reduced compared with the current once - through fuel cycle.