Abstract:
PROBLEM TO BE SOLVED: To provide a long life carbon nanotube field emission emitter having a three-dimensional structure composed of carbon nanotubes. SOLUTION: The carbon nanotube field emission emitter is provided with at lease two electrode plates of which the wider surfaces are arranged to make a pair facing each other, carbon nanotubes arranged on both surfaces of both electrode plates, a base plate fixed perpendicularly on each of one side of the electrode plates, an anode electrode which is arranged in parallel separated from the base plate and has a phosphor to face the base plate, a DC power source to impress a DC current between the anode electrode and the electrode plate and a pulse wave supplying unit which impresses a pulse wave having a different voltage periodically to either one of the pair electrode plates and these plates can play roles of a cathode electrode and a gate alternately. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a phase correction method, especially a method for correcting nonlinear phases. SOLUTION: This nonlinear phase correction method includes the step of acquiring image information by gradient-echo Echo Planar Imaging (EPI), the step of acquiring reference information by spin-echo EPI, and the step of correcting the image information from the reference information. COPYRIGHT: (C)2008,JPO&INPIT