The material was densely opaque on x-ray examination, first suggesting its origin from a thorium dioxide deposit in the neck. Scintillation-probe scanning showed greatly increased radioactivity ...

The team experimented with thorium dioxide (ThO2) since it has a lower bandgap and facilitates electron emission. More recently, researchers have also observed photon emissions. “With only a ...

However, one must be sure that the hazards do not outweigh the advantages. As one reviews the literature it becomes apparent that no contrast substance used to date does not carry some risk.

Furthermore, spent thorium fuel reprocessing is challenging. There are difficulties in dissolving thorium dioxide and in handling gaseous products, and it needs maturity at the industrial scale.

You can get in touch with John by emailing j.feng@newsweek.com Chinese media has reported that the country's geologists had uncovered vast deposits of thorium in the autonomous region of Inner ...