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10.1016/j.jmr.2017.02.013 http://scihub22266oqcxt.onion/10.1016/j.jmr.2017.02.013 C5523658!5523658 !28579099     free     free     free Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\28579099 .jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117       J+Magn+Reson 2017 ; 280 (ä): 140-148 Nephropedia Template TP {{tp|p=28579099 |t=2017. Rapid-scan EPR imaging |pdf=|usr=}}{{28579099 }} gab.com Text Rapid-scan EPR imaging JO: J Magn Reson http://www.kidney.de/pget.php?&tw=1&pmid=28579099 #FOAvip In rapid-scan EPR the magnetic field or frequency is repeatedly scanned through the spectrum at rates that are much faster than in conventional continuous wave EPR. The signal is directly-detected with a mixer at the source frequency. Rapid-scan EPR is particularly advantageous when the scan rate through resonance is fast relative to electron spin relaxation rates. In such scans, there may be oscillations on the trailing edge of the spectrum. These oscillations can be removed by mathematical deconvolution to recover the slow-scan absorption spectrum. In cases of inhomogeneous broadening, the oscillations may interfere destructively to the extent that they are not visible. The deconvolution can be used even when it is not required, so spectra can be obtained in which some portions of the spectrum are in the rapid-scan regime and some are not. The technology developed for rapid-scan EPR can be applied generally so long as spectra are obtained in the linear response region. The detection of the full spectrum in each scan, the ability to use higher microwave power without saturation, and the noise filtering inherent in coherent averaging results in substantial improvement in signal-to-noise relative to conventional continuous wave spectroscopy, which is particularly advantageous for low-frequency EPR imaging. This overview describes the principles of rapid-scan EPR and the hardware used to generate the spectra. Examples are provided of its application to imaging of nitroxide radicals, diradicals, and spin-trapped radicals at a Larmor frequency of ca. 250MHz. Twit Text FOAVip Rapid-scan EPR imaging ????J Magn Reson http://www.kidney.de/pget.php?&tw=1&pmid=28579099 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=28579099 #FOAvip English Wikipedia <ref>{{Cite pmid|28579099 }}</ref> Rapid-scan EPR imaging #MMPMID28579099 Eaton SS ; Shi Y ; Woodcock L ; Buchanan LA ; McPeak J ; Quine RW ; Rinard GA ; Epel B ; Halpern HJ ; Eaton GR J Magn Reson 2017[Jul]; 280 (ä): 140-148 PMID28579099 show ga In rapid-scan EPR the magnetic field or frequency is repeatedly scanned through the spectrum at rates that are much faster than in conventional continuous wave EPR. The signal is directly-detected with a mixer at the source frequency. Rapid-scan EPR is particularly advantageous when the scan rate through resonance is fast relative to electron spin relaxation rates. In such scans, there may be oscillations on the trailing edge of the spectrum. These oscillations can be removed by mathematical deconvolution to recover the slow-scan absorption spectrum. In cases of inhomogeneous broadening, the oscillations may interfere destructively to the extent that they are not visible. The deconvolution can be used even when it is not required, so spectra can be obtained in which some portions of the spectrum are in the rapid-scan regime and some are not. The technology developed for rapid-scan EPR can be applied generally so long as spectra are obtained in the linear response region. The detection of the full spectrum in each scan, the ability to use higher microwave power without saturation, and the noise filtering inherent in coherent averaging results in substantial improvement in signal-to-noise relative to conventional continuous wave spectroscopy, which is particularly advantageous for low-frequency EPR imaging. This overview describes the principles of rapid-scan EPR and the hardware used to generate the spectra. Examples are provided of its application to imaging of nitroxide radicals, diradicals, and spin-trapped radicals at a Larmor frequency of ca. 250MHz. |Algorithms [MESH] |Animals [MESH] |Diagnostic Imaging [MESH] |Electron Spin Resonance Spectroscopy/*methods [MESH] |Humans [MESH] |Microwaves [MESH]Rapid-scan EPR imaging (epmc).pdf DeepDyve Pubget Overpricing