摘要:
A method for producing a hyperpolarized sample for use in a magnetic resonance investigation, with the following steps: a) providing a solid sample (50), containing long T1 nuclei and short T1 nuclei in the same molecules (51); b) hyperpolarizing the short T1 nuclei in the solid sample (50), c) transforming the solid sample (50) into a liquid sample (52), d) transferring the polarization of the short T1 nuclei to the long T1 nuclei within the molecules in the liquid sample (52) by Cross Polarization. The invention provides a method which can provide samples with hyperpolarized long T1 nuclei, in particular 13 C or 15 N, in a simple and efficient way.
摘要:
The present invention discloses a novel self-fastening cage of a magnetic resonance device (MRD) (100) for providing a homogeneous, stable and uniform magnetic field therein, characterized by an outside shell comprising at least three flexi-jointed superimposed walls (1) disposed in a predetermined arrangement clockwise or counterclockwise. In a technology of self-fastening cage, the invention teaches an effective multi-streamed MRD comprising a cage including a closed magnetic circuit constructed from strong permanent magnets; and an optional shimming mechanism selected from an array of active shim coils, passive shimming elements or any combination thereof; a contained cavity within which the magnetic field strength is approximately uniform; and a means, such as a plurality of conveyor belts, pipes or any other transportation means by which a plurality of samples are introduced into the region of uniform magnetic field; such that magnetic resonance measurements are made on a plurality of samples within the region of uniform magnetic field. The invention depicts a cost effective method for obtaining a self-fastening cage of a MRD (100) characterized by an outside shell comprising superimposing at least three flexi-jointed walls (1) so that a homogeneous, stable and uniform magnetic field is provided therein.
摘要:
The present invention discloses a novel self-fastening cage of a magnetic resonance device (MRD) (100) for providing a homogeneous, stable and uniform magnetic field therein, characterized by an outside shell comprising at least three flexi-jointed superimposed walls (1) disposed in a predetermined arrangement clockwise or counterclockwise. In a technology of self-fastening cage, the invention teaches an effective multi-streamed MRD comprising a cage including a closed magnetic circuit constructed from strong permanent magnets; and an optional shimming mechanism selected from an array of active shim coils, passive shimming elements or any combination thereof; a contained cavity within which the magnetic field strength is approximately uniform; and a means, such as a plurality of conveyor belts, pipes or any other transportation means by which a plurality of samples are introduced into the region of uniform magnetic field; such that magnetic resonance measurements are made on a plurality of samples within the region of uniform magnetic field. The invention depicts a cost effective method for obtaining a self-fastening cage of a MRD (100) characterized by an outside shell comprising superimposing at least three flexi-jointed walls (1) so that a homogeneous, stable and uniform magnetic field is provided therein.
摘要:
A magnet device which includes two sets of static magnetic field generation sources, each being constituted by current carrying means disposed concentrically in order to generate a uniform magnetic field directing in a first direction being provided with at least four current carrying means, and in which when assuming a crossing point of a first axis which is in parallel with the first direction and passes substantially the center of the current carrying means and a second axis which crosses the first axis orthogonally and locates at substantially the equal distance from the two sets of the static magnetic field generation sources as a first point and further assuming a first straight line contained on a first plane defined by the first axis, the second axis and the first point and passing through the first point, the current carrying means are disposed in such a manner that, when geometrical centers of cross sections of the current carrying means on the first plane are projected on the first straight line, the current carrying direction of the current carrying means at the respective corresponding projections of each of the static magnetic field generation sources aligns alternatively in positive and negative direction on the first straight line, thereby, an open space feeling and accessibility to an object to be inspected are improved in an MRI device.
摘要:
A new type of electromagnet which can be used as a gradient coil (30) in NMR imaging systems. The cylindrical electromagnet produces a transverse magnetic field (38) perpendicular to the magnet axis. An NMR imaging system (32, 34, 36) using this new magnet is also disclosed.