1 / 8

Gyroscopic behavior of toroidal FRACTAL protons in NMR

Brno University of Technology osmera @fme.vutbr.cz MUDr. Pavel Ošmera – junior, MUDr. Jiří Vaníček, Ph.D. International Clinical Research Center - Department of Imaging Methods Department of Imaging Methods, Faculty of Medicine of Masaryk University St. Anne's University Hospital Brno

abdalla
Download Presentation

Gyroscopic behavior of toroidal FRACTAL protons in NMR

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Brno University of Technology osmera @fme.vutbr.cz MUDr. PavelOšmera – junior, MUDr. Jiří Vaníček, Ph.D. International Clinical Research Center - Department of Imaging Methods Department of Imaging Methods, Faculty of Medicine of Masaryk University St. Anne's University Hospital Brno osmera @fnusa.cz, vanicek @fnusa.cz Gyroscopic behavior of toroidal FRACTAL protons in NMR prof. Ing. PavelOšmera, CSc. June 27-29, 2012 MENDEL 2012

  2. Intoduction We tried to explain the basic principle of nuclear magnetic resonance without a virtual magnetic dipole. We used the vortex-ring-fractal structures of the basic particles with their vortex electromagnetic fields. neutron electron electron proton proton Structure of hydrogen atom Structure of deuterium atom

  3. Main ideas and differences MENDEL2010

  4. Main idea Nuclear magnetic resonance (NMR) is based on the absorption and emission of energy in the radio frequency range of the electromagnetic spectrum. The human body is primarily fat and water. Fat and water have many hydrogen atoms which make the human body approximately 63% hydrogen atoms. Hydrogen nuclei have an NMR signal. For these reasons magnetic resonance imaging primarily images the NMR signal from the hydrogen nuclei comprised of a single proton. The proton possesses a property called spin which will cause the nucleus to produce an NMR signal. protons inside magnetic field of the permanent magnet

  5. When proton is placed in a magnetic field of strength B, a particle with a net spin can absorb a photon, of frequency . The frequency fdepends on the gyromagnetic ratioγ,  of the particle. • f = γB • For hydrogen, = 42.58 MHz / T. The structure of water (nucleus of oxygen and hydrogen is enlarged)

  6. input axis output axis proton spin axis Behavior of gyroscope Behavior of a gyro wheel (proton). Reaction arrows about the output axis correspond to forces applied about the input axis, and vice versa. MENDEL2012

  7. precession electromagnetic pulse Gyroscopic behavior of the protons in water molecules: a) without outer magnetic field b) in the magnetic field of the magnet MENDEL2012

  8. Conclusions In the future there will be necessary to continue in more precise calculation of gyro-magnetic behavior of the proton. It can better explain basic principle of NMR and then we can find new approaches how to increase the quality of MRI. Theoretically, we can expect further significant qualitative improvement in the onset of new technology, called "electron-nuclear double resonance", which advantageously exploits the fact that the spin of electrons is related to the nuclear spin based on dipole principle. This fact, using electron-nuclear Overhauser effect can bring up multiple increase in MR signal intensity and thus the sensitivity of the whole method.

More Related