Positively charged particles and free electrons are left behind after the collisions. Devices that are used to detect radioactivity are based on the ionizing ability of radiation. One such device is ...

In this lesson, students will investigate the nature of radioactivity and the effect of both distance and shielding materials on different radioactive sources using a Geiger-Muller tube with a counter ...

The IAEA's Marine Radioactivity Information System (MARIS) allows free access to users to search and download the results of measurements of radioactivity in seawater, biota, sediment and suspended ...

This publication provides information on the implementation of quality assurance and quality control programmes for the measurement of radioactivity related to the practice of nuclear medicine. It is ...

All types of radiation become less intense as they travel further away from the radioactive material. This is because the particles or rays become more spread out. The thicker the substance, the ...

Her groundbreaking work in radioactivity laid the foundation for numerous advancements in science and medicine. This blog post explores the life and legacy of Marie Curie, highlighting her ...

He had a Geiger counter nearby to measure radioactivity. When he was finished, he took the polonium away, but something strange happened. The Geiger counter kept clicking, sensing radioactivity.

A new study has found that nuclear weapons tests during the Cold War are a major cause of high levels of radioactivity in central Europe's wild boar population. The radioactivity found in wild ...

Isotopes are forms of an element that have the same number of protons but different numbers of neutrons. There are three isotopes of hydrogen: hydrogen, deuterium (hydrogen-2) and tritium ...

He found that increased radioactivity could be found in the sediment downstream from waste treatment facilities as much as 30 kilometers (nearly 19 miles) from the discharge point. “I’m always ...

Rachel Carson’s “Silent Spring” connected disappearing populations of bald eagles to the presence of the pesticide DDT in the birds’ food chain. Because bald eagles are apex predators, their dose of ...