The U.S. Environmental Protection Agency (EPA) is responsible for advising the government on radiation hazards and regulating certain sources of radioactivity in the environment. This booklet …

All stable nuclei and known radioactive nuclei, both naturally occurring and manmade, are shown on this chart, along with their decay properties.

Most of the planet’s radioactivity was generated in neutron driven nucleosynthesis processes in previous star generations and implemented on earth during the early phases of the formation of the solar …

First discovered in the late 19th century, radioactivity involves the spontaneous emission of energy or particles from the unstable nuclei of certain atoms. This process can be both beneficial and …

RADIATION PROTECTION NOTE 1: RADIOACTIVITY BASICS INTRODUCTION An understanding of the underlying principles involved in the radioactive decay process is essential for the safe working …

Radioactivity and radioactive properties of nuclide are determined by nuclear considerations and independent of chemical and physical states of the radioisotope.

1934 – The radioactivity discovered by Irène and Fréderic Jolio Curie in combination with the cyclotron opened the door to the production of useful radioactive indicators. Nuclear radiation plays a pivotal …