منابع مشابه
Solid State Tesla Coil
Some years ago I developed an interest in Tesla coils. I was teaching a senior elective course at Kansas State University where we talked about power MOSFETs and topics related to high voltages and currents. I decided to use a Tesla coil as a class project. We would talk about design aspects, then design, build, and test a coil. The best description of the results of that plan was fiasco, or ma...
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We describe the further development of a circularly polarized helmet coil for magnetic resonance imaging (MRI) of the human brain at 3 T. The coil is used in transmit and receive (transceive) mode, a useful alternative over commercially available quadrature headcoils with scanners where phased arrays are unavailable. The coil is simple to build. Its structure is based on an assembly of two copl...
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متن کاملA 13 channel 3 Tesla Shoulder Coil on a Domed Conformable Former
Introduction: MRI provides an essential tool for musculoskeletal radiology. The highest quality images are obtained with anatomically specific RF coil designs, customized to the anatomy of interest. The shoulder presents a difficult target, however, because of wide variations in body habitus and the difficulty of arranging coil elements around the shoulder to optimize sensitivity. The most comm...
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T h e p e r f o r m a n c e o f s m a I I v o I u m e Magnetic Resonance Imaging ( M R I ) d e p e n d s on t h e s y s t e m n o i s e determined by noise of a probe and/or of a preamplifier (not by the body noise). Several demonstrations confirmed that, for selected applications, high-TC superconductor MRI receiver coils have superior properties to those of comparable copper coils. W e report...
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ژورنال
عنوان ژورنال: Nature
سال: 1903
ISSN: 0028-0836,1476-4687
DOI: 10.1038/068295a0