Ionizing radiation – an evolutionary threat?
نویسندگان
چکیده
منابع مشابه
Amphibian nitrate stress as an additional terrestrial threat from astrophysical ionizing radiation events?
Abstract Various astrophysical events have been suggested as sources of ionizing radiation that, by way of destruction of the ozone layer and the subsequent increase in UVB and deposition of nitrate, could pose a threat to life on Earth. We have investigated whether the nitrate deposition that follows an ionizing event is sufficient to cause an additional stress beyond that of the heightened UV...
متن کاملIonizing 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...
متن کاملIonizing 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...
متن کاملIonizing 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...
متن کاملNitrate Deposition following an Astrophysical Ionizing Radiation
It is known that a gamma ray burst (GRB) originating near the Earth could be devastating to life. The mechanism of ozone depletion and subsequent increased UVB exposure is the primary risk, but models also show increased nitrification culminating in nitric acid rainout. These effects are also expected after nearby supernovae and extreme solar proton events. In this work we considered specifical...
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ژورنال
عنوان ژورنال: Hypothesis
سال: 2015
ISSN: 1710-3398,1710-338X
DOI: 10.5779/hypothesis.v13i1.437