http://debianws.lexgopc.com/wiki143/index.php?action=history&feed=atom&title=Linear_diode_arrayLinear diode array - Revision history2026-05-12T10:08:05ZRevision history for this page on the wikiMediaWiki 1.43.1http://debianws.lexgopc.com/wiki143/index.php?title=Linear_diode_array&diff=6826846&oldid=previmported>JoeNMLC: /* References */ add section2024-03-25T20:07:44Z<p><span class="autocomment">References: </span> add section</p>
<p><b>New page</b></p><div>[[File:XB8850-12 LDA.JPG|thumb|right|250px|Part of a 12-inch (304 mm) 50-micrometre-resolution linear diode array XB8850-12 made by X-Scan Imaging Corporation; a horizontal, white [[scintillator]] strip overlays a linear silicon-integrated photodiode array mounted by chip-on-board [[Surface mount technology|surface-mount technology]] onto a green [[Printed circuit board|printed-circuit board]]]]<br />
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A '''Linear diode array''' is used for [[digitizing]] [[x-ray]] images. The LDA system consists of an array of [[photodiode]] modules.<ref name="pears1">{{cite book|last1=Pearsall|first1=Thomas|title=Photonics Essentials, 2nd edition|publisher=McGraw-Hill|date=2010|url=https://www.mheducation.com/highered/product/photonics-essentials-second-edition-pearsall/9780071629355.html|isbn=978-0-07-162935-5|access-date=2021-02-25|archive-date=2021-08-17|archive-url=https://web.archive.org/web/20210817005021/https://www.mheducation.com/highered/product/photonics-essentials-second-edition-pearsall/9780071629355.html|url-status=dead}}</ref> The diodes are laminated with a [[Scintillation (physics)|scintillation]] screen to create x-ray sensitive diodes. The scintillation screen converts the [[photon]] energy emitted by the x-ray tube into visible light on the diodes. The diodes produce a [[voltage]] when the light energy is received. This voltage is amplified, [[Multiplexer|multiplexed]], and converted to a digital signal.<br />
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==Use==<br />
One of the unique characteristics of the LDA is that it has an excellent dynamic range. This means that it is capable of generating useful data when x-raying both very thick (tread) and thin (sidewall) sections of a [[tire]] simultaneously. However, the human eye is capable of visualizing only a small fraction of the LDA's full dynamic range. To compensate for the limitations of the human eye while still taking advantage of this feature of the LDA, a variety of selectable contrast and brightness enhancing tables are available.<br />
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==References==<br />
{{Reflist}}<br />
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[[Category:X-ray instrumentation]]<br />
[[Category:Optical diodes]]<br />
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