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    Noise transfer in screen-film subtraction radiography.

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    Authors
    Shaw, A
    Moores, B M
    Affiliation
    Regional Department of Medical Physics and Bioengineering, CHristie Hospital and Holt Radium Institute, Withington, Manchester M20 9BX, England
    Issue Date
    1985-03
    
    Metadata
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    Abstract
    The transfer of noise through the stages of a screen-film subtraction process was investigated. In particular the effect of measuring aperture size and film density on the measured noise granularity was studied. The relative contributions of quantum noise and film grain noise were found to depend on both aperture and density. Noise measurements are presented for a medium speed screen-film combination and also for a low noise alpha 16-Kodak Industrex C system. The effect of grain mottle and film blur on noise transfer through the multiple print process employed in subtraction radiography is demonstrated.
    Citation
    Noise transfer in screen-film subtraction radiography. 1985, 30 (3):229-38 Phys Med Biol
    Journal
    Physics in Medicine and Biology
    URI
    http://hdl.handle.net/10541/116992
    PubMed ID
    3885267
    Type
    Article
    Language
    en
    ISSN
    0031-9155
    Collections
    All Christie Publications

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