nuclear radiation


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

nuclear radiation

Radiation and particles coming from the nuclei of radioactive atoms during radioactive decay and nuclear reactions. Alpha particles are the nuclei of helium atoms, beta particles are high-speed electrons, X-rays and gamma rays are electromagnetic radiations of wavelength progressively shorter than visible light. Nuclear radiations differ in penetration, beta particles being least penetrative and the gamma rays most. Ionizing radiations can dislodge linking electrons from molecules, such as those of DNA, and cause damaging changes. In general, radiations are most destructive to cells most rapidly dividing.
References in periodicals archive ?
Sensor Tech is a designer and manufacturer of nuclear radiation detectors for law enforcement, homeland security and military applications.
Other countries who monitor the area, have also not seen evidence of nuclear radiation leaving the test site.
Stilbene scintillator crystals offer a breakthrough in the area of nuclear radiation detection most closely associated with border security and terroristic threat reduction.
The threat of a nuclear incident, with the potential to kill or injure thousands of people, has raised global awareness about the need for medical countermeasures that can prevent radiation-induced bodily damage and keep people alive, even if given a day or more after contact with nuclear radiation.
Yip began with his lecture notes for a first-year graduate course on the fundamentals of nuclear radiation interactions for students of nuclear science and engineering with diverse backgrounds.
indicated that the current risk models for nuclear radiation were understating the real hazards.
The goal is not to make students pro-nuclear or anti-nuclear, but to provide them tools to calculate and asses nuclear radiation and its impact.
THE Scottish Government last night accused the Ministry of Defence of deliberately misleading the public over a nuclear radiation leak at Dounreay.
Concerns about nuclear radiation in some incidents such as in the Fukushima nuclear plant have pushed the GCC countries, keen on the physical well-being of their citizens, to draw up emergency plans in case there are dangerous radiation levels from leaks," he said.
Initial nuclear radiation is generated by the processes of fission and fusion at the instant of detonation.
Al-Mudhi praised the Kuwaiti government's keenness on protecting nationals and residents from any environmental dangers facing the country, noting that Kuwait is the only GCC country that has a reserve of 60 million Iodine pills, used to protect humans from cancer caused by nuclear radiation.
Shahrestani said Iraq would exert efforts to activate the peaceful aspect of the atomic energy in the field of nuclear radiation, in medicine, agriculture, industry and other fields.

Full browser ?