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in radiology, a change in size of the focal spot, usually an increase.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


Process of depositing a thin film of transparent material on the surface of an optical element (e.g. lens, mirror, prism) for the purpose of decreasing or increasing reflection. Reflection from specific wavelengths can be reduced or eliminated by varying the thickness of the film and by multilayer coating. Syn. blooming. See anti-reflection coating; white body; bandpass filter; Fresnel's formula.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann

Patient discussion about blooming

Q. How the fetus is influenced from Bloom syndrome? If the mother has the syndrome, what is the influence on the fetus?

A. this is from:

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References in periodicals archive ?
* NEW XPRESS CCD Starlight Xpress takes advantage of Sony's new large CCD detectors in its SXVR-H694 anti-blooming CCD camera ($2,995).
From a dark-sky site with an anti-blooming camera, I often shoot 10-minute exposures because I'm not limited by light pollution.
The chip has anti-blooming protection (to prevent streaks on bright stars), high sensitivity, and low dark current, which is further reduced by a regulated, two-stage thermoelectric cooler that can bring the chip to as much as 35[degrees] C below ambient air temperature.
Most anti-blooming CCD detectors do not have a linear response to photons across their entire dynamic range, and because of slight differences in each CCD, no two cameras will have the exact same range of linear response.