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Although the solar corona is a source of extreme ultraviolet and X-ray radiation, these rays make up only a very small amount of the power output of the Sun (see spectrum at right). The spectrum of nearly all solar electromagnetic radiation striking the Earth's atmosphere spans a range of 100 nm to about 1 mm (1,000,000 nm).
3D model of the molybdate ion. In chemistry, a molybdate is a compound containing an oxyanion with molybdenum in its highest oxidation state of 6: O−−Mo (=O)2−O−. Molybdenum can form a very large range of such oxyanions, which can be discrete structures or polymeric extended structures, although the latter are only found in the solid state.
In physics, radiation is the emission or transmission of energy in the form of waves or particles through space or a material medium. [1] [2] This includes: electromagnetic radiation consists of photons, such as radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma radiation (γ) particle radiation consists of ...
Again in 2014, the Life & Times Survey asked what respondents felt should be the "long term future for Northern Ireland". 66% of respondents felt the future should be as a part of the UK, with or without devolved government. 17% felt that Northern Ireland should unify with the Republic of Ireland. 50% of specifically Roman Catholics considered ...
LD 1 is 2.5 Gy, LD 50 is 5 Gy and LD 99 is 8 Gy. The LD 50 dose represents 375 joules for a 75 kg adult. Absorbed dose in matter. The gray is used to measure absorbed dose rates in non-tissue materials for processes such as radiation hardening, food irradiation and electron irradiation. Measuring and controlling the value of absorbed dose is ...
γ-ray spectrum of cobalt-60. Cobalt-60 ( 60 Co) is a synthetic radioactive isotope of cobalt with a half-life of 5.2714 years. [3] [4] : 39 It is produced artificially in nuclear reactors. Deliberate industrial production depends on neutron activation of bulk samples of the monoisotopic and mononuclidic cobalt isotope 59.
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