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collimation
collimation The act of making a beam of light parallel by a suitable arrangement of lenses or mirrors (a collimator), or of bringing the components of a system, particularly a telescope, into correct alignment. In high-energy astrophysics (X-ray and gamma-ray astronomy), collimation is often used to restrict the field of view of non-imaging instruments to improve the accuracy of source location and reduce source confusion; the collimator is then made of a material which is opaque to the radiation in question, such as glass or stainless steel.
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"collimation." A Dictionary of Astronomy. 1997. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>. "collimation." A Dictionary of Astronomy. 1997. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O80-collimation.html "collimation." A Dictionary of Astronomy. 1997. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-collimation.html |
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collimation
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T. F. HOAD. "collimation." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>. T. F. HOAD. "collimation." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O27-collimation.html T. F. HOAD. "collimation." The Concise Oxford Dictionary of English Etymology. 1996. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O27-collimation.html |
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