reflection of neutrons

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• Reflection (physics) — Reflection is the change in direction of a wave front at an between two different media so that the wave front returns into the medium from which it originated. Common examples include the reflection of light, sound and water waves. Law of… …   Wikipedia

• Ultracold neutrons — (UCN) are free neutrons which can be stored in traps made from certain materials. The storage is based on the reflection of UCN by such materials under any angle of incidence. Properties The reflection is caused by the coherent strong interaction …   Wikipedia

• bragg reflection — ˈbrag , aa , ai noun Usage: usually capitalized B Etymology: after Sir William H. Bragg died 1942 and Sir William L. Bragg died 1971 English physicists : the action of a crystal in reflecting X rays or particle waves (as electrons or neutrons) in …   Useful english dictionary

• Neutron — This article is about the subatomic particle. For other uses, see Neutron (disambiguation). Neutron The quark structure of the neutron. (The color assignment of individual quarks is not important, only that all three colors are present.)… …   Wikipedia

• Nuclear criticality safety — is a field of nuclear engineering dedicated to the prevention of nuclear and radiation accidents resulting from an inadvertent, self sustaining nuclear chain reaction.[1] Additionally, nuclear criticality safety is concerned with mitigating the… …   Wikipedia

• Model lipid bilayer — A model lipid bilayer is any bilayer assembled in vitro, as opposed to the bilayer of natural cell membranes or covering various sub cellular structures like the nucleus. A model bilayer can be made with either synthetic or natural lipids. The… …   Wikipedia

• РЕФЛЕКТОМЕТРИЯ — (от лат. reflecto отражаю и греч. metreo измеряю) совокупность методов исследования плоских границ раздела сред путём анализазеркально отражённых от изучаемой границы пучков молекул, атомов, частицили эл. магн. излучения. Наиб. разработана… …   Физическая энциклопедия

• Wo Weihan — (chinois : 沃维汉 ; en pinyin : Wò Wéihàn; 1949 28 novembre 2008 à Pékin[1],[2]) était un biochimiste et hom …   Wikipédia en Français

• radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …   Universalium

• spectroscopy — spectroscopist /spek tros keuh pist/, n. /spek tros keuh pee, spek treuh skoh pee/, n. the science that deals with the use of the spectroscope and with spectrum analysis. [1865 70; SPECTRO + SCOPY] * * * Branch of analysis devoted to identifying… …   Universalium

• physical science — physical scientist. 1. any of the natural sciences dealing with inanimate matter or with energy, as physics, chemistry, and astronomy. 2. these sciences collectively. [1835 45] * * * Introduction       the systematic study of the inorganic world …   Universalium