The Experts below are selected from a list of 48 Experts worldwide ranked by ideXlab platform
J T Ennis - One of the best experts on this subject based on the ideXlab platform.
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assessment of mammographic Film Processor performance in a hospital and mobile screening unit
British Journal of Radiology, 1992Co-Authors: J G Murray, D J Dowsett, O Laird, J T EnnisAbstract:Abstract In contrast to the majority of mammographic breast screening programmes, Film processing at this centre occurs on site in both hospital and mobile trailer units. Initial (1989) quality control (QC) sensitometric tests revealed a large variation in Film Processor performance in the mobile unit. The clinical significance of these variations was assessed and acceptance limits for Processor performance determined. Abnormal mammograms were used as reference material and copied using high definition 35 mm Film over a range of exposure settings. The copies were than matched with QC Film density variation from the mobile unit. All Films were subsequently ranked for spatial and contrast resolution. Optimal values for processing time of 2 min (equivalent to Film transit time 3 min and developer time 46 s) and temperature of 36°C were obtained. The widespread anomaly of reporting Film transit time as processing time is highlighted. Use of mammogram copies as a means of measuring the influence of Film proces...
J G Murray - One of the best experts on this subject based on the ideXlab platform.
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assessment of mammographic Film Processor performance in a hospital and mobile screening unit
British Journal of Radiology, 1992Co-Authors: J G Murray, D J Dowsett, O Laird, J T EnnisAbstract:Abstract In contrast to the majority of mammographic breast screening programmes, Film processing at this centre occurs on site in both hospital and mobile trailer units. Initial (1989) quality control (QC) sensitometric tests revealed a large variation in Film Processor performance in the mobile unit. The clinical significance of these variations was assessed and acceptance limits for Processor performance determined. Abnormal mammograms were used as reference material and copied using high definition 35 mm Film over a range of exposure settings. The copies were than matched with QC Film density variation from the mobile unit. All Films were subsequently ranked for spatial and contrast resolution. Optimal values for processing time of 2 min (equivalent to Film transit time 3 min and developer time 46 s) and temperature of 36°C were obtained. The widespread anomaly of reporting Film transit time as processing time is highlighted. Use of mammogram copies as a means of measuring the influence of Film proces...
O Laird - One of the best experts on this subject based on the ideXlab platform.
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assessment of mammographic Film Processor performance in a hospital and mobile screening unit
British Journal of Radiology, 1992Co-Authors: J G Murray, D J Dowsett, O Laird, J T EnnisAbstract:Abstract In contrast to the majority of mammographic breast screening programmes, Film processing at this centre occurs on site in both hospital and mobile trailer units. Initial (1989) quality control (QC) sensitometric tests revealed a large variation in Film Processor performance in the mobile unit. The clinical significance of these variations was assessed and acceptance limits for Processor performance determined. Abnormal mammograms were used as reference material and copied using high definition 35 mm Film over a range of exposure settings. The copies were than matched with QC Film density variation from the mobile unit. All Films were subsequently ranked for spatial and contrast resolution. Optimal values for processing time of 2 min (equivalent to Film transit time 3 min and developer time 46 s) and temperature of 36°C were obtained. The widespread anomaly of reporting Film transit time as processing time is highlighted. Use of mammogram copies as a means of measuring the influence of Film proces...
D J Dowsett - One of the best experts on this subject based on the ideXlab platform.
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assessment of mammographic Film Processor performance in a hospital and mobile screening unit
British Journal of Radiology, 1992Co-Authors: J G Murray, D J Dowsett, O Laird, J T EnnisAbstract:Abstract In contrast to the majority of mammographic breast screening programmes, Film processing at this centre occurs on site in both hospital and mobile trailer units. Initial (1989) quality control (QC) sensitometric tests revealed a large variation in Film Processor performance in the mobile unit. The clinical significance of these variations was assessed and acceptance limits for Processor performance determined. Abnormal mammograms were used as reference material and copied using high definition 35 mm Film over a range of exposure settings. The copies were than matched with QC Film density variation from the mobile unit. All Films were subsequently ranked for spatial and contrast resolution. Optimal values for processing time of 2 min (equivalent to Film transit time 3 min and developer time 46 s) and temperature of 36°C were obtained. The widespread anomaly of reporting Film transit time as processing time is highlighted. Use of mammogram copies as a means of measuring the influence of Film proces...
Olga Kopp - One of the best experts on this subject based on the ideXlab platform.
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nano Film Processor based on the lateral self oxidation of a nanoscale aluminum Film
Electrochimica Acta, 2013Co-Authors: Meinhard Knoll, Christian Althaus, Marius Nolte, Christian Schoo, Olga KoppAbstract:Abstract Electronic devices that are low in cost and capable of working without an external power supply are desirable for many applications. Conventional electronic circuits are based on semiconductors and the controlled transport of electrons and holes by electric field manipulation, diffusion, and injection. We describe electronic circuits based on the flow of femtoliter quantities of an electrolyte controlled by the lateral self-oxidation of a nanoscale aluminum Film. The circuits provide basic functions such as clocks, electrical switches, pseudo transistors and display elements. The elements operate in a self-consuming mode and therefore do not require external power. They operate slowly over long periods of time and can form the basis of smart systems, smart labels, and many other applications.