Abstract: The present invention relates to an apparatus for generating flames and more particularly to the microwave plasma burner for generation of high-temperature plasma flame by injecting gaseous, liquid or solid-powder hydrocarbon-fuels into plasma generated by microwaves. The invention provides a compact and portable apparatus for generating plasma flame. The apparatus includes a magnetron, an electrical power supplier, a waveguide system, a microwave power monitering system, stub tuners, a discharge tube, a gas supply system, a plasma ignitor and a fuel supply system. The method and apparatus is described for generation of a large volume of high-temperature plasma by injecting gaseous, liquid or solid-powder hydrocarbon-fuels into the microwave plasma torch to decompose the hydrogen and carbon containing fuels, and to mix the resultant gaseous hydrogen and carbon compounds with air or oxygen gas, instantaneously generating a large volume of high-temperature flames.

Abstract: A magnetic resonance imaging (MRI) system includes a computer for performing overall control and signal processing, a pulse generator for generating a predetermined RF pulse signal and a gradient field pulse signal having variable intensities, a main magnet for generating a static magnetic field, a gradient field coil having a cylindrical dish-like structure surrounding a magnetic pole of the main magnet for generating a gradient field based on the gradient field pulse signal, an RF coil for transmitting a RF field according to the RF pulse signal to an imaging object and receiving MR signals from the imaging object, and an analog-to-digital converter for converting the MR signals from the RF coil into digital signals and outputting the converted digital signals to the computer.