Results 291 to 300 of about 479,138 (343)
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Metal-semiconductor-metal electron detectors
Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, 2007Metal-semiconductor-metal (MSM) junctions are a standard photon detector for high-speed applications due to fast response time (subpicosecond) and long device lifetime, high gain (QE>100%), small device area, and reduced capacitance per area. Here, the authors characterize how such devices perform as electron detectors, performing preliminary ...
Rafael Aldana, R. Fabian Pease
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PAHTEI-Procedings of Azerbaijan High Technical Educational Institutions, 2023
Treasure hunting is one of the things that people have been interested in and engaged in for many years. Because land is a treasure and extremely important for human life. The land provides us with food and nourishment. Without land and water, there would certainly be no life. People and societies have always relied on land.
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Treasure hunting is one of the things that people have been interested in and engaged in for many years. Because land is a treasure and extremely important for human life. The land provides us with food and nourishment. Without land and water, there would certainly be no life. People and societies have always relied on land.
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Key Engineering Materials, 2013
Humanitarian demining is a matter of high interest, but metal contamination and magnetic soils reduce the sensitivity of metal detectors. The soil contamination also increases the numbers of false alarms which, in some areas, account for as much as 99.9 % of all alarms. The decrease of false alarms is therefore attractive. Our solution is capable to be
Petr Nováček, Jakub Svatoš
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Humanitarian demining is a matter of high interest, but metal contamination and magnetic soils reduce the sensitivity of metal detectors. The soil contamination also increases the numbers of false alarms which, in some areas, account for as much as 99.9 % of all alarms. The decrease of false alarms is therefore attractive. Our solution is capable to be
Petr Nováček, Jakub Svatoš
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Metallic orthopaedic implants and airport metal detectors
The Journal of Arthroplasty, 2002Airport security can detect in vivo metallic implants. We hypothesized that a soft tissue shield and fast transit through archway detectors would decrease implant detectability, whereas greater implant mass would increase detectability. Twelve patients with 8 orthopaedic implants in vivo and 60 trauma and arthroplasty implants in vitro were subjected ...
S, Kamineni, S, Legge, H, Ware
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Interdigitated Metal–Semiconductor–Metal Detectors
OSA Proceedings on Picosecond Electronics and Optoelectronics, 1989The Interdigitated-Metal-Semiconductor-Metal (IMSM) detector has recently become one of the more popular detectors for optoelectronic integration. The factors affecting the performance of this type of detector are reviewed particularly in the context of low noise amplification circuitry.
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Silicon-Based Metal-Semiconductor-Metal Detectors
MRS Bulletin, 1998Photodetectors must provide fast and efficient conversion of photons to charge carriers. When considering semiconductor light sources, the indirect bandgap of silicon and germanium represents a serious obstacle to radiative electron-hole recombinations. Momentum conservation demands the simultaneous interaction of the electron-hole pair with a momentum-
Ch. Buchal, M. Löken
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UV Metal Semiconductor Metal Detectors
2004UV detection is interesting for combustion optimization, air contamination control, fire and solar blind rocket launching detection. Most of these applications require that UV detectors have a huge dynamic response between UV and the visible, and a very low dark current in the range of the UV flux measured.
J.-L. Reverchon +6 more
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SPIE Proceedings, 2006
The Johns Hopkins University Applied Physics Laboratory (APL) has developed a prototype metal detection survey system that will increase the search speed of conventional technology while maintaining high sensitivity. Higher search speeds will reduce the time to clear roads of landmines and improvised explosive devices (IED) and to locate unexploded ...
Carl V. Nelson +2 more
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The Johns Hopkins University Applied Physics Laboratory (APL) has developed a prototype metal detection survey system that will increase the search speed of conventional technology while maintaining high sensitivity. Higher search speeds will reduce the time to clear roads of landmines and improvised explosive devices (IED) and to locate unexploded ...
Carl V. Nelson +2 more
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2011 Fifth International Conference on Sensing Technology, 2011
Metal-detector performance depends heavily on the sensor head. Errors in coil placement within the head can lead to degradation in detector performance. Electromagnetic modelling of typical very-low-frequency detector heads shows the effect of coil placement errors on detector sensitivity.
null Zhuoran Tang, Lawrence J. Carter
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Metal-detector performance depends heavily on the sensor head. Errors in coil placement within the head can lead to degradation in detector performance. Electromagnetic modelling of typical very-low-frequency detector heads shows the effect of coil placement errors on detector sensitivity.
null Zhuoran Tang, Lawrence J. Carter
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