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beam restrictor |
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beam restrictor, a device that reduces the size of the beam of radiation from x-ray equipment. Three basic types of restrictors are variable-aperture collimators, cones or cylinders, and aperture diaphragms. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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