“background radiation”的概念、定义、翻译、参考文献-科学参考

background radiation

Physics

Low intensity ionizing radiation present on the surface of the earth and in the atmosphere as a result of cosmic radiation and the presence of radioisotopes in the earth’s rocks, soil, and atmosphere. The radioisotopes are either natural or the result of nuclear fallout or waste gas from power stations. Background counts must be taken into account when measuring the radiation produced by a specified source. See also microwave background radiation.

Astronomy

Electromagnetic radiation arriving at a telescope detector or receiver that does not come from the source under observation. In radio astronomy, background radiation comes from the Milky Way and the cosmic microwave background from the Universe as a whole. In infrared astronomy, background radiation from the atmosphere and from the telescope itself can be considerable, but may be reduced by careful design of the telescope and instruments.

Chemistry

Low intensity ionizing radiation present on the surface of the earth and in the atmosphere as a result of cosmic radiation and the presence of radioisotopes in the earth’s rocks, soil, and atmosphere. The radioisotopes are either natural or the result of nuclear fallout or waste gas from power stations. Background counts must be taken into account when measuring the radiation produced by a specified source.

Chemical Engineering

A measurable low-intensity ionizing radiation that is present all around due to the presence of radioisotopes in rocks such as granite, in the soil, and the atmosphere. The radioisotopes in the atmosphere are naturally forming, the result of nuclear fallout, and emissions for nuclear reprocessing, or emanating as waste gases from power stations. The level of background radiation must be taken into consideration when measuring the radiation from a source.

Biology

Low-intensity ionizing radiation present on the surface of the earth and in the atmosphere as a result of cosmic radiation and the presence of radioisotopes in the earth’s rocks, soil, and atmosphere. The radioisotopes are either natural or the result of nuclear fallout or waste gas from power stations.

单词	background radiation
释义	background radiation Physics Low intensity ionizing radiation present on the surface of the earth and in the atmosphere as a result of cosmic radiation and the presence of radioisotopes in the earth’s rocks, soil, and atmosphere. The radioisotopes are either natural or the result of nuclear fallout or waste gas from power stations. Background counts must be taken into account when measuring the radiation produced by a specified source. See also microwave background radiation. Astronomy Electromagnetic radiation arriving at a telescope detector or receiver that does not come from the source under observation. In radio astronomy, background radiation comes from the Milky Way and the cosmic microwave background from the Universe as a whole. In infrared astronomy, background radiation from the atmosphere and from the telescope itself can be considerable, but may be reduced by careful design of the telescope and instruments. Chemistry Low intensity ionizing radiation present on the surface of the earth and in the atmosphere as a result of cosmic radiation and the presence of radioisotopes in the earth’s rocks, soil, and atmosphere. The radioisotopes are either natural or the result of nuclear fallout or waste gas from power stations. Background counts must be taken into account when measuring the radiation produced by a specified source. Chemical Engineering A measurable low-intensity ionizing radiation that is present all around due to the presence of radioisotopes in rocks such as granite, in the soil, and the atmosphere. The radioisotopes in the atmosphere are naturally forming, the result of nuclear fallout, and emissions for nuclear reprocessing, or emanating as waste gases from power stations. The level of background radiation must be taken into consideration when measuring the radiation from a source. Biology Low-intensity ionizing radiation present on the surface of the earth and in the atmosphere as a result of cosmic radiation and the presence of radioisotopes in the earth’s rocks, soil, and atmosphere. The radioisotopes are either natural or the result of nuclear fallout or waste gas from power stations.
随便看	cyberpunk cyber security cyberspace cyberspeak cyberspying cybersquatting cyberstalker cyberstalking cyberterrorism cyber theft cyber warfare cyborg cybrarian cycad Cycadaceae Cycadales Cycadofilicales Cycadophyta Cycadopsida cyclamates cycle cycle decomposition cycle index polynomial cycle(in graph theory) cycle of erosion