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Detective quantum efficiency of medical x-ray image intensifiers

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dc.contributor.author Thirlwall, JT en_US
dc.date.accessioned 2007-02-06T09:22:58Z en_US
dc.date.accessioned 2007-06-07T10:09:31Z
dc.date.available 2007-02-06T09:22:58Z en_US
dc.date.available 2007-06-07T10:09:31Z
dc.date.copyright en_US
dc.date.issued 1998-11 en_US
dc.identifier.citation Thirlwall, JT. 1998. The detective quantum efficiency of medical x-ray image intensifiers. Review of Scientific Instruments, vol. 69(11), pp 3953-3957 en_US
dc.identifier.issn 0034-6748 en_US
dc.identifier.uri http://hdl.handle.net/10204/1506 en_US
dc.identifier.uri http://hdl.handle.net/10204/1506
dc.description.abstract The recognition of small features of low contrast in the image recorded by an x-ray image intensifier is usually limited by photon noise. This detail-contrast perceptibility is dependent on the detective quantum efficiency (DQE) and the modulation transfer function of the imaging tube and associated scanning system. The DQE can be calculated for all input photon energies from the statistical behaviour of each stage of photon detection and amplification where quanta are lost or converted. The potential improvement to be obtained from any proposed design change can be estimated. The escape of characteristic photons from the input phosphor layer causes significant change to the performance particularly when gadolinium oxysulphide is employed for that purpose. en_US
dc.format.extent 154691 bytes en_US
dc.format.mimetype application/pdf en_US
dc.language.iso en en_US
dc.publisher American Institute of Physics en_US
dc.rights Copyright: 1998 American Institute of Physics en_US
dc.source en_US
dc.subject X-ray image intensifiers en_US
dc.subject Detective quantum efficiency en_US
dc.subject DQE en_US
dc.subject Photons en_US
dc.subject Gadolinium oxysulphide en_US
dc.subject Instrumentation en_US
dc.subject Applied physics en_US
dc.title Detective quantum efficiency of medical x-ray image intensifiers en_US
dc.type Article en_US
dc.identifier.apacitation Thirlwall, J. (1998). Detective quantum efficiency of medical x-ray image intensifiers. http://hdl.handle.net/10204/1506 en_ZA
dc.identifier.chicagocitation Thirlwall, JT "Detective quantum efficiency of medical x-ray image intensifiers." (1998) http://hdl.handle.net/10204/1506 en_ZA
dc.identifier.vancouvercitation Thirlwall J. Detective quantum efficiency of medical x-ray image intensifiers. 1998; http://hdl.handle.net/10204/1506. en_ZA
dc.identifier.ris TY - Article AU - Thirlwall, JT AB - The recognition of small features of low contrast in the image recorded by an x-ray image intensifier is usually limited by photon noise. This detail-contrast perceptibility is dependent on the detective quantum efficiency (DQE) and the modulation transfer function of the imaging tube and associated scanning system. The DQE can be calculated for all input photon energies from the statistical behaviour of each stage of photon detection and amplification where quanta are lost or converted. The potential improvement to be obtained from any proposed design change can be estimated. The escape of characteristic photons from the input phosphor layer causes significant change to the performance particularly when gadolinium oxysulphide is employed for that purpose. DA - 1998-11 DB - ResearchSpace DP - CSIR KW - X-ray image intensifiers KW - Detective quantum efficiency KW - DQE KW - Photons KW - Gadolinium oxysulphide KW - Instrumentation KW - Applied physics LK - https://researchspace.csir.co.za PY - 1998 SM - 0034-6748 T1 - Detective quantum efficiency of medical x-ray image intensifiers TI - Detective quantum efficiency of medical x-ray image intensifiers UR - http://hdl.handle.net/10204/1506 ER - en_ZA


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