As part of a larger evaluation we attempted to measure the detective quantum efficiency DQE of an amorphous silicon flat-panel detector using the method described in the International Electrotechnical Commission standard published in October To achieve the radiographic beam conditions specified in the standard, we purchased scientific-grade ultrahigh purity aluminum Qualitative evaluation of flat field images acquired at 71 kV RQA5 beam quality with 21 mm of ultrahigh purity aluminum filtration demonstrated a low frequency mottle that was reproducible and was not observed when the measurement was repeated at 74 kV RQA5 beam quality with 21 mm of lower-purity aluminum This finding was ultimately attributed to the larger grain size approximately mm of high purity aluminum metal, which is a well-known characteristic, particularly in thicknesses greater than 1 mm.
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Active, Most Current. Prices subject to change without notice. About Us. Contact Us. Sign In. Standards Store. Purchase History. Currency display settings. Manage society memberships. Featured Products. View All Publishers. Quality Management. SCC Standards Store. Popular Standards Bundles. Drawing and Drafting. Telecommunications Standards. AWS D1. Means, Inc. Look Inside. IEC 1st Edition, March Complete Document. Medical electrical equipment - Characteristics of digital X-ray imaging devices - Part Determination of the detective quantum efficiency - Detectors used in radiographic imaging.
Detail Summary View all details. Price USD. Single User. In Stock. Need it fast? Ask for rush delivery. Most backordered items can be rushed in from the publisher in as little as 24 hours. Some rush fees may apply. Add to Cart. View Full Details and Buy. Complementary Documents and Links:. The intended users of this part of IEC are manufacturers and well equipped test laboratories. NOTE 1 While not recommended, applying this standard to determine the DQE of digital X-ray imaging devices integrated in a clinical system is not excluded as long as the requirements as set in this standard are respected.
NOTE 3 The devices noted above are excluded because they contain many parameters for instance, beam qualities, geometry, time dependence, etc. Browse Publishers. Top Sellers. My Account. Corporate Sustainability. Investor Relations. All Rights Reserved. Update Cart. Create New Account.
Do you need a multi-user copy? Our prices are in Swiss francs CHF. We accept all major credit cards American Express, Mastercard and Visa , PayPal and bank transfers as form of payment. Preview Abstract Specifies the method for the determination of the detective quantum efficiency DQE of digital X-ray imaging devices as a function of air kerma and of spatial frequency for the working conditions in the range of the medical application as specified by the manufacturer. The intended users of this part of IEC are manufacturers and well equipped test laboratories. This Part is restricted to digital X-ray imaging devices that are used for mammographic imaging such as but not exclusively, CR systems, direct and indirect flat panel detector based systems, scanning systems CCD based or photon-counting. This part of IEC is not applicable to - digital X-ray imaging devices intended to be used in general radiography or in dental radiography; - computed tomography; and - devices for dynamic imaging where series of images are acquired, as in fluoroscopic or cardiac imaging.
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