865 PARENTAL PRECONCEPTIONAL IONIZING RADIATION AND ANEU-PLOID CHILDREN

The risk of childhood cancer from intrauterine and preconceptional exposure to ionizing radiation.

The findings of studies investigating whether exposures to ionizing radiation before birth, either pre- or post-conception, increase the risk of childhood cancer have provoked much scientific controversy. An epidemiological association between the abdominal exposure of pregnant women to diagnostic X-rays and childhood cancer was first reported in the 1950s, while an association between the reco...

Ionizing Radiation

581 *Lieutenant Colonel, U.S. Army; Health Services Command Radiation Protection Staff Officer, Fort Sam Houston, Texas 78234-6000; formerly Chief, Health Physics Division, U.S. Army Environmental Hygiene Agency †Chief, Industrial Health Physics Branch, Health Physics Division, U.S. Army Environmental Hygiene Agency ‡Captain, U.S. Army; Chief, Medical Health Physics Branch, U.S. Army Environmen...

People and ionizing radiation

Ionizing Radiation

Introduction Radiation that has sufficient energy to remove electrons from atoms is called “ionizing radiation.” Ionization results in the production of negatively charged free electrons and positively charged ionized atoms. Ionizing radiation can be classified into two groups: photons (includes X-radiation and gamma radiation) and particles (includes alpha and beta particles and neutrons). The...

Ionizing Radiation

Ionizing radiation is electromagnetic radiation that has sufficient energy to remove electrons from atoms. Ionization results in the production of negatively charged free electrons and positively charged ionized atoms. Ionizing radiation can be classified into two categories: photons (X-radiation and gamma radiation) and particles (alpha and beta particles and neutrons). Five types or sources o...