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MEDICAL RADIATION EXPOSURE IN THE U.S. IN 2006: PRELIMINARY RESULTS
Medical radiation exposure of the U.S. population has not been systematically evaluated for almost 25 y. In 1982, the per capita dose was estimated to be 0.54 mSv and the collective dose 124,000Expand
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Reference values for diagnostic radiology: application and impact.
Reference values (RVs) are recommended by the American Association of Physicists in Medicine for four radiographic projections, computed tomography, fluoroscopy, and dental radiography. RVs are usedExpand
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Effect of 1.5 tesla nuclear magnetic resonance imaging scanner on implanted permanent pacemakers.
Patients with a permanent pacemaker are currently restricted from diagnostic nuclear magnetic resonance (NMR) imaging because of potential adverse effects on the pacemaker by the magnet. PreviousExpand
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CHARACTERISTICS OF GRADED BASE COURSE AGGREGATES DETERMINED BY TRIAXIAL TESTS
  • J. Gray
  • Materials Science
  • 1 July 1962
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Radiation exposure and efficacy of exposure-reduction techniques during cardiac catheterization in children.
OBJECTIVE The purpose of this study was to measure radiation exposure levels in children undergoing cardiac catheterization. This information was used to assess methods of reducing exposure and toExpand
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Specification and Acceptance Testing of Computed Tomography Scanners
TLDR
The Computed Tomography (CT) Scanner Task Group was formed to provide a reference document of suggested procedures for acceptance testing of CT systems for clinical medical physicists. Expand
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Dental Staff Doses with Handheld Dental Intraoral X-Ray Units
A handheld portable dental intraoral x-ray system is available in the United States and elsewhere. The system is designed to minimize the user's radiation dose. It includes specially designedExpand
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International Comparison of Dielectric Measurements
Three materials, i.e.,fused silica, glass, and alumina, were selected for comparison based on known or expected homogeneity, isotropy, and stability. Measurements were made by the three GovernmentExpand
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NCRP and AAPM revising NCRP 49.
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The unreliability of CT numbers as absolute values.
The use of CT numbers as absolute values was examined by scanning a standard phantom on five CT scanners under a variety of conditions simulating those encountered in routine body CT scanning. TheExpand
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