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
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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 |
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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 -
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en_ZA |