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Ionizing radiation


Ionizing radiation (ionising radiation) is radiation that carries enough energy to free electrons ... Typical ionizing subatomic particles from radioactivity include alpha particles, beta .... The g...

NRC: Radiation Basics


This less-familiar form of radiation includes alpha particles, beta particles, and ... Essentially, a half-life of a radioactive material is the time it takes one-half of the atoms ... (ions), which may cause changes in living cells of plants, animals, and people. ... Nonetheless, ionizing radiation is potentially harmful if not used c...

OSHA Training and Reference Materials Library - Industrial Hygiene


These materials were developed by OSHA's Office of Training and Education and are ... work practice controls, and other methods to control potential health hazards. ... with toxic chemicals, biological hazards, and harmful physical agents. .... These include bacteria, viruses, fungi, and other living organisms that can cause ....

Radiation | Nuclear Radiation | Ionizing Radiation | Health Effects ...


Ionizing radiation which can damage living tissue is emitted as the unstable atoms ... radiation we are exposed to in our daily lives and to assess potential health ... gray than gamma or beta radiation, another unit, the sievert (Sv) is used in setting ... Quantities of radioactive material are commonly estimated by measuring the ...

Protection Against Exposure to Ultraviolet Radiation - World Health ...


The sun's emissions include UV, visible light, heat and other radiations. .... Clothing, including hats, can effectively shield otherwise exposed body sites. Where the use of ... The most significant source of potential exposure is arc welding. ... Fluorescent lamps are common in the workplace and are often used in the home.

Radiation and Life - World Nuclear Association


In fact it may be dangerous, so we control our exposure to it. ... Living things have evolved in an environment which has significant levels of ionising radiation. ... measures of mass and volume, the amount of radioactive material is given in becquerel ... Water and concrete are the most commonly used shields against neutron ...

X-rays, Gamma Rays, and Cancer Risk - American Cancer Society


absorbed dose in Gy. Less common radiation dose units include rads, rems, and roentgens. ... more cosmic rays than people living at sea level. People are also ... Some of these may end up in building materials used in houses and other structures. .... but they have the potential to expose people to high levels of radiation.

Chapter 48 - Radiation: Ionizing


Naturally occurring radioactive isotopes enter and remain in all living things. ... Such particles include energetic electrons (sometimes called negatrons), positrons, ... The energy of the photon and the material with which it interacts determine which ... quantities, units and definitions commonly used in radiation safety follows.

The Radiation Challenge - NASA


Items 1 - 16 ... Radiation Damage in Living Organisms: Modeling .... best time to travel in space, and which materials should be used for the spacesuits, spacecraft, ...

Chemical and Hazardous Materials Safety Manual - The University ...


information concerning radioactive materials and/or radiation producing devices. .... B. Wear a face shield, acid resistant chemical gloves, and aprons when working ... This potential ... Label every storage container used for flammable liquids with the name of the ... Any substance, even water, can be harmful to living things.

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Radiation Protection | US EPA


Information and educational materials. About radiological topics in general, plus EPA's activities in protecting the public and the environment from exposure, ...



Any discussion of dangers from radiation must include numbers; otherwise, it can be ... about 10,000 mrem, which is commonly referred to as low-level radiation. ... or seeping out of a waste burial ground; a radioactive source used for materials .... people living near that plant get more radiation exposure from radon in their ...

RADIATION PROTECTION and the NRC - UMD - Environmental ...


affects matter. Non-ionizing radiation includes visible light, heat, ... uses of radioactive materials for civil- ... Materials that emit alpha particles are potentially dangerous when ... duce many of the radioactive sources used ... WhAT hAPPENS WhEN lIvINg ThINgS ARE ... 3Shielding: Inserting a solid material or shield between.