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10.1038/srep28360 http://scihub22266oqcxt.onion/10.1038/srep28360 C4916450!4916450 !27329379     free     free     free Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=27329379 &cmd=llinks): Failed to open stream: HTTP request failed! 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Ultrahigh Frequency (100?MHz-300?MHz) Ultrasonic Transducers for Optical Resolution Medical Imagining |pdf=|usr=}}{{27329379 }} gab.com Text Ultrahigh Frequency (100 MHz-300 MHz) Ultrasonic Transducers for Optical Resolution Medical Imagining JO: Sci Rep http://www.kidney.de/pget.php?&tw=1&pmid=27329379 #FOAvip High resolution ultrasonic imaging requires high frequency wide band ultrasonic transducers, which produce short pulses and highly focused beam. However, currently the frequency of ultrasonic transducers is limited to below 100?MHz, mainly because of the challenge in precise control of fabrication parameters. This paper reports the design, fabrication, and characterization of sensitive broadband lithium niobate (LiNbO3) single element ultrasonic transducers in the range of 100-300?MHz, as well as their applications in high resolution imaging. All transducers were built for an f-number close to 1.0, which was achieved by press-focusing the piezoelectric layer into a spherical curvature. Characterization results demonstrated their high sensitivity and a -6?dB bandwidth greater than 40%. Resolutions better than 6.4??m in the lateral direction and 6.2??m in the axial direction were achieved by scanning a 4??m tungsten wire target. Ultrasonic biomicroscopy images of zebrafish eyes were obtained with these transducers which demonstrate the feasibility of high resolution imaging with a performance comparable to optical resolution. Twit Text FOAVip Ultrahigh Frequency (100 MHz-300 MHz) Ultrasonic Transducers for Optical Resolution Medical Imagining ????Sci Rep http://www.kidney.de/pget.php?&tw=1&pmid=27329379 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=27329379 #FOAvip English Wikipedia <ref>{{Cite pmid|27329379 }}</ref> Ultrahigh Frequency (100?MHz-300?MHz) Ultrasonic Transducers for Optical Resolution Medical Imagining #MMPMID27329379 Fei C ; Chiu CT ; Chen X ; Chen Z ; Ma J ; Zhu B ; Shung KK ; Zhou Q Sci Rep 2016[Jun]; 6 (ä): 28360 PMID27329379 show ga High resolution ultrasonic imaging requires high frequency wide band ultrasonic transducers, which produce short pulses and highly focused beam. However, currently the frequency of ultrasonic transducers is limited to below 100?MHz, mainly because of the challenge in precise control of fabrication parameters. This paper reports the design, fabrication, and characterization of sensitive broadband lithium niobate (LiNbO3) single element ultrasonic transducers in the range of 100-300?MHz, as well as their applications in high resolution imaging. All transducers were built for an f-number close to 1.0, which was achieved by press-focusing the piezoelectric layer into a spherical curvature. Characterization results demonstrated their high sensitivity and a -6?dB bandwidth greater than 40%. Resolutions better than 6.4??m in the lateral direction and 6.2??m in the axial direction were achieved by scanning a 4??m tungsten wire target. Ultrasonic biomicroscopy images of zebrafish eyes were obtained with these transducers which demonstrate the feasibility of high resolution imaging with a performance comparable to optical resolution. |Animals [MESH] |Diagnostic Imaging/instrumentation [MESH] |Equipment Design [MESH] |Equipment Failure Analysis [MESH] |Eye/*ultrastructure [MESH] |Niobium [MESH] |Oxides [MESH] |Phantoms, Imaging [MESH] |Transducers [MESH] |Ultrasonography/*instrumentation [MESH]Ultrahigh Frequency (100?MHz-300?MHz) Ultrasonic Transducers for Optic(epmc).pdf DeepDyve Pubget Overpricing