Union of Concerned Scientists‚ Ucsusa.org. 3 Sept. 2013. Web. 22 Sept. 2013. Einstein‚ Albert. BrainyQuote. Xplore‚ n.d. Web. 22 Sept. 2013. Klein‚ Robert. "Protect Your DNA from CT Scans and X-rays Research Supports Nutrient Shields Against Ionizing Radiation." lef.org. Life Extensive Magazine‚ Aug. 2010. Web. 22 Sept. 2013. Oak‚ Manali. "Possitive Effects of Technology on Society." Buzzle.com. Buzzle.com‚ 23 Jan. 2012. Web. 22 Sept. 2013.
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Abstract This paper discusses radon gas‚ which is produced as a byproduct of the natural decomposition of uranium in rocks‚ soil‚ and water. Gas build-up in enclosed dwellings such as houses‚ apartment and office buildings‚ factories‚ and schools is a major concern in many parts of the country. Human exposure to high concentrations of this gas for extended periods of time can be extremely damaging to health. Lung cancer has the highest mortality rate of any cancer‚ and it is estimated that 15%
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Blackbody radiation is the electro-magnetic radiation emerging from a small hole in a perfectly black box containing electromagnetic radiation at a high temperature. Scientists were interested in setting standards for the electric and thus measured the distribution of the total electromagnetic energy in a black box among the different wavelengths of the light. But not until Max Planck‚ at the turn of the century‚ was a single mathematical formula for the observed distribution of the energy among
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Radiation pattern From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search Antenna radiation patterns In the field of antenna design the term ’radiation pattern ’ most commonly refers to the directional (angular) dependence of radiation from the antenna or other source (synonyms: antenna pattern‚ far-field pattern).[1][2][3] Particularly in the fields of fiber optics‚ lasers‚ and integrated optics‚ the term radiation pattern‚ or near-field radiation pattern‚ may also be used as
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Name __________________ Blackbody Radiation Lab 11 Go to http://phet.colorado.edu/simulations/sims.php?sim=Blackbody_Spectrum and click on Run Now. 1) In this lab‚ you will use the Blackbody Spectrum Simulation to investigate how the spectrum of electromagnetic radiation emitted by objects is affected by the object’s temperature. In this simulation‚ you can input the temperature and observe the spectrum of the radiation emitted. a) The temperature of stars in the universe
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RADIATION HISTORY Basic Terminology Radiation - A form of energy carried by waves or stream of particles (photons) X-radiation - A high-energy radiation produced by the collision of a beam of electrons with a metal target in an x-ray tube High-energy Radiation - A form of radiation that is able to pass through substances (e.g. the human body) X-ray - A beam of energy that has the power to penetrate substances and record image shadows on photographic film Radiology
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Fresh Fruits Irradiation for Phytosanitary Purposes in Thailand using a Multipurpose Irradiation Facility Suwit Tunlayadechanont Synergy Health (Thailand) Ltd. 700/465 Amata Nakorn Industrial Moo 7 Tambol Donhuaroh‚ Amphur Muang Chonburi‚ Chonburi 20000 Thailand Keywords: gamma irradiation‚ phytosanitary treatment‚ pest management Abstract Thailand reached an agreement with the USA for the commercial irradiationof six types of exotic fresh fruits‚ mango‚ mangosteen‚ longan‚ rambutan‚ lychee‚ and
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Section 1: What is radioactivity? Nuclear Radiation During radioactive decay‚ the unstable nuclei of these isotopes emit particles‚ or release energy‚ to become stable isotopes‚ as Figure 1 shows. After radioactive decay‚ the element changes into a different isotope of the same element or into an entirely different element. Recall that isotopes of an element are atoms that have the same number of protons but different numbers of neutrons in their nuclei. Different elements are distinguished
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by losing atomic particles (protons‚ neutrons‚ or electrons). When solid radium decays to form radon gas‚ it loses two protons and two neutrons. These two protons and two neutrons are called an alpha particle‚ which is a type of radiation. The elements that produce radiation are called radioactive.
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Tritium (Hydrogen-3) | 357050 TBq/Kg (9650 Ci/g) | 12.32 years | 5.7 (average) | Alpha emission only Isotope | Activity | Half-life | Energies (KeV) | Polonium-210 | 166500 TBq/Kg (4500 Ci/g) | 138 days | 5304.5 | Isotope | Activity | Half-life | Radiation types | Energies (KeV) | Caesium-137 | 3256 TBq/Kg (88 Ci/g) | 30.1 years | Gamma & beta | G: 32‚ 661.6 B: 511.6‚ 1173.2 |
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