About 150 people living or working around Japan's damaged nuclear facilities have been monitored for potential radiation exposure, and 23 have been found to be in need of treatment. How is the extent of their exposure measured? According to the United States Nuclear Regulatory Commission (NRC),...
Radiation exposure is measured primarily in Rem (in the US) and the Sievert (SI unit), and is a measure of the radioactive dose absorbed relative to its possible health effects on the body. This is called the “equivalent dose,” and is weighted to account for the fact that the same ...
Ionizing radiation and how it is measuredELSEVIERNuclear Energy in the 21st Century
If all this talk of the horrors of radiation has you in a panic, here's something reassuring: Most types of radiation are harmless; even the dangerous kinds won't cause radiation sickness unless you receive a large dose. In fact, any type of emitted energy is basically radiation, like the...
However, it is important to restate that these incubations were performed on Earth and not in environmental conditions experienced in low-Earth orbit such as microgravity, elevated CO2, and low-dose radiation, all of which may affect microbial growth and microbial composition. The results are also...
Radiation comes in many forms and is all around us, all the time. Sometimes it's dangerous; sometimes it's not. Radiation is both natural and man-made. Our bodies are exposed to natural radiation every day -- from soil and underground gases to cosmic radiation from the sun and ...
body each second. That's over one-half million per minute. The resulting radiation strikes billions of our cells each hour. There are two scientific quantities used in the discussion of radiation protection: equivalent dose and effective dose. Neither of these quantities can be directly measured....
transition probabilities and branching ratios as well as cross sections of a variety of nuclear – mainly neutron- and charged-particle-induced – reactions of these isotopes is a precondition for the evaluation of scientific data in any of these research areas. But how reliable are the presently...
While some excess radiation is shed away into the lattice, most of the power remains concentrated, thus forming an extremely localized and almost stationary state. Interesting to note that in our system such self-compressing instability corresponds to a transfer of all the energy of a sequence of...
radiation. More recently, doctors embraced sound to indicate specific medical readings; the beep-beep of an electrocardiogram is perhaps the most iconic (unless you count Monty Python’s medical device that goesbing!). Current applications of sonic display are still mostly specialized, limited in ...