Ionizing Radiation 22
Ionizing Radiation 22 :
Radiation and Radiological Disasters. Radiation sufficiently energetic to dislodge electrons from an atom and thus leave the atom positively charged or "ionized". Ionizing radiation includes x and gamma radiation, electrons (beta radiation), alpha particles (helium nuclei), and heavier charged atomic nuclei. Neutrons ionize indirectly by colliding with atomic nuclei. The creation of ions (ionized atoms, which are chemically active) inside living cells can damage key substances in cells, including the DNA containing the record of the cell's characteristics. Such damage can lead to cancer or other defects
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