it is 4.5 billion years. Potassium 40, the main source of radioactivity in our bodies, has a half-life of 1.42 billion years. Types of Radiation The term "radiation" is very broad, and includes such ...

Computed tomography -- also known as computed axial tomography, a CT scan, or a CAT scan -- is a tool doctors use to diagnose many types of ... what’s called “ionizing” radiation.

Perhaps ironically, while the danger from something like UV radiation is often underestimated, other types of electromagnetic ... in the case of 5G cell towers. Ionizing radiation gets a warning ...

Nuno Pessoa Barradas, Research Reactor Specialist, IAEA Currently, the Philippines only has four cyclotrons, but they are privately owned ... the research reactor specialist at the IAEA responsible ...

Secretory ASMase activation is required for ionizing radiation to kill endothelium (Santana et al., Cell 1996; 86:189-199), as endothelium in lung, gut, and brain are totally resistant to ...