Radioactivity

Russian Defence Minister Sergei Shoigu told his NATO counterparts that Ukraine was planning to detonate a radioactive dirty bomb to discredit Russia. The allegation raises the question, what is a dirty bomb and how dangerous is one.

Perovskites are quickly emerging in the solar energy field, thanks to their ability to convert photons into electricity. Now this process has been tweaked to pick up neutrons instead, making an effective detector for leaks from radioactive materials.

Our story on NDB's self-charging nuclear diamond batteries generated a lot of heated discussion, so we reached out to the University of Bristol, where the technology was invented, to discover exactly what these diamond betabatteries can and can't do.

Nuclear batteries can last decades, but their power density is currently too low to be very practical. Now, Russian researchers have developed a new nuclear battery design based on nickel-63, which has a higher specific energy than regular, commercially-available batteries.

Thorium reactors have long been proposed as a cleaner, safer alternative to nuclear energy. Now Russian scientists propose a new thorium reactor design that can burn weapons-grade plutonium, producing power and thermal energy while disposing of nuclear waste at the same time.

Dosime is a personal radiation dosimeter aimed at the consumer market that displays "accurate, reliable and easy-to-understand" information about personal radiation exposure.