Abstract: Values of quantum bits used for a quantum computer is stabilized and the number of quantum bits per element is set to be 100 or more while ensuring quantum state stability during calculation of the quantum bits, quantum state controllability, and capability of achieving large-scale integration of quantum bits. Quantum calculation is performed as generating a spin vortex 6 centered on each hole 4 formed at a copper oxide superconductor thin film 3 by applying a magnetic field to a quantum bit substrate 1 having the copper oxide superconductor thin film 3 at which a plurality of the holes 4 are doped and irradiating an electromagnetic wave 19 containing quantum calculation data to the quantum bit substrate 1 in a state that a clockwise loop current 5 or a counterclockwise loop current 5 is generated in accordance with a position of each hole 4 and each spin vortex 6.

Abstract: Illustrative embodiments of systems for characterizing resonance behavior of magnetostrictive resonators are disclosed. In one illustrative embodiment, an apparatus may comprise a first channel including one or more driving coils and one or more magnetostrictive resonators, the first channel having a first impedance; a second channel having a second impedance, the second impedance differing from the first impedance by an impedance attributable to the one or more magnetostrictive resonators; a signal source configured to apply an input signal to both the first and second channels; and a signal receiver configured to generate a combined output signal in response to output signals measured from both the first and second channels.

Abstract: According to one embodiment, a magnetic resonance imaging apparatus includes; an imaging area setting unit configured to set an imaging area for a patient according to an imaging condition; an excitation angle determination unit configured to collect magnetic resonance signals from the imaging area by a pre-scan and to determine, on the basis of the collected magnetic resonance signal, an optimal excitation angle of a radio-frequency magnetic field for use in an imaging scan; and an imaging unit configured to acquire imaging data by carrying out the imaging scan of the set imaging area for the patient applying the radio-frequency magnetic field with the determined optimal excitation angle.

Abstract: The present embodiments relate to a local coil for a magnetic resonance tomography system. The local coil includes at least one coil element having an antenna. The at least one coil element is movable relative to a housing of the local coil.

Abstract: A 5-dimensional imaging method and system is provided to acquire and display the effect of dynamic physiologic changes (either spontaneous or induced) on cardiac function of a patient's heart to elucidate their effects on diastolic myocardial function. In a patient free-breathing magnetic resonance imaging study, 3-dimensional spatial information is encoded by a non-Cartesian 3-dimensional k-space readout trajectory and acquired concurrently with recordings of cardiac and respiratory cycles. The advantage of using non-Cartesian sampling in this invention compared to, for example, Cartesian sampling is higher scan acceleration, improved robustness to motion/flow effects (incoherent instead of coherent artifacts) and robustness to missing data points in k-space.

Abstract: A preamplifier (46) comprises a field effect transistor (64) in common source configuration. While the gate of the field effect transistor is coupled to an amplifier input circuit (e.g. MRI coil), the drain of the field effect transistor (64) is coupled to an amplifier output. The preamplifier comprises furthermore a first (66) and a second (68) source-ground connection. The first source-ground lead (66) couples the source of the field effect transistor to the ground node of the amplifier input circuit, while the second source-ground lead (68) couples the source of the field effect transistor to the ground node of the amplifier output circuit. As a result, amplifier output currents generate basically a voltage drop across the second source-ground lead (68). Thus, the amplifier input circuit is less influenced by any common voltage drop across any common source-ground connection.

Abstract: A system including a plurality of coil elements is provided. Each coil element is arranged with a first switch and a second switch. In a first mode, the first switch and the second switch are turned off to split each coil element into a first upper coil portion and a second lower coil portion, to transmit first radio frequency signals. In a second mode, the first switch and second switch are turned on to transform each coil element into a loop coil to simultaneously transmit or receive multiple second radio frequency signals.

Abstract: An apparatus for determining the homogeneity of a fluid flow in a pipe, such as a reducing-agent flow in an exhaust-gas pipe of an internal combustion engine, including a transmitter arranged on a light-transmissive region of the pipe and a diametrically opposite detector. The transmitter and detector being coupled such that they are rotatable through an angle of 360° about a rotational axis which is located substantially in the axis of symmetry of the pipe. The transmitter and the detector are rotated through at least 360° about the rotational axis, thus capturing an intensity of the detected light over the rotation angle, and from this a homogeneity of the fluid flow is deduced.

Abstract: Apparatus, methods, and other embodiments associated with NMR fingerprinting with parallel transmission are described. One example apparatus includes individually controllable radio frequency (RF) transmission (TX) coils configured to apply varying NMR fingerprinting RF excitations to a sample. The NMR apparatus may apply excitations in parallel. An individual excitation causes different resonant species to produce different signal evolutions. The apparatus includes a parallel transmission logic that causes one of the coils to apply a first excitation to the sample and that causes a different coil to apply a second, different excitation to the sample. The excitations are configured to produce a spatial inhomogeneity between a first region in the sample and a second region in the sample that allows a resonant species to produce a first signal evolution in the first region and to produce a second signal evolution in the second region to facilitate de-correlating the signal evolutions.

Abstract: A method of MR imaging applies a magnetic field Bgrad1 having a spatially non-linear dependence to select a volume of at least one curved slice. The slice is described by its midsurface AM, a volume of the selected slice being made up of n? partial volumes in each of which gradients of at least one pair of remaining superimposed magnetic fields Bgradi (i>1) exhibit an angle dependence of 70° to 110° with respect to one another and with respect to the normal of the midsurface AM. At least one superimposed magnetic field of the respective pair exhibits a spatially non-linear dependence and combinations of these pairs are used for spatial encoding. In this way, curved surfaces can be mapped efficiently in high resolution and the method can be adapted to the slice shape.

Abstract: In the diffusion spectroscopic imaging, in which intensity of molecular diffusion is imaged with separating chemical substances, with suppressing artifacts resulting from object motion of an object, spatial resolution, spectral band and SNR are maintained, and measurement accuracy is enhanced. A measurement for acquiring diffusion SI data is repeated a plurality of times with changing acquisition timing, phase variation of each measurement result is corrected, and a diffusion SI image is reconstructed from the corrected measurement results. In addition, the phase variation is calculated for every point in the space from the diffusion SI data acquired by each measurement or navigation data obtained by each measurement. The phase correction is independently performed for every point in the space.

Abstract: A method of B1 field mapping relating to Magnetic resonance imaging (MRI) is given. In the method, RF and gradients are applied to excite and select a linear projection through a volume of interest; a radio frequency pulse sequence is transmitted to impart B1 dependent phase to the linear projection, following which a one dimensional spatial encoding signal is acquired along the linear projection; Subsequently a B1 field map based on the one dimensional spatial encoding signal is reconstructed.

Abstract: Apparatus, methods, and other embodiments associated with multi-slice blipped TrueFISP-CAIPIRINHA in magnetic resonance imaging (MRI) are described. One example apparatus produces CAIPIRINHA phase cycling in a TrueFISP-CAIPRINHA pulse sequence using a blipped gradient pattern rather than using radio frequency (RF) pulses. The phase cycling is produced by controlling a gradient coil in an MRI apparatus to produce a pre-scan pulse that is configured to set magnetization into a steady state position and then controlling the gradient coil to produce a balanced alternating phase pulse per repetition (TR). The balanced alternating phase pulse is configured to introduce a CAIPIRINHA aliasing pattern between slices. Controlling the gradient coil includes selectively adding and removing a finite gradient area from de-phase pulses and re-phase pulses in the pulse sequence.

Abstract: The present embodiments relate to a method and a local coil arrangement for a magnetic resonance tomography system. The local coil arrangement includes an antenna element for the reception of signals from an object under examination. The local coil arrangement also includes an A/D converter for the conversion of analog signals received with the antenna element into digitized signals, and a memory configured for the storage of the digitized signals.

Abstract: The present disclosure describes exemplary embodiments of process, system, computer-accessible medium and processing arrangement which can be used to provide multiple-quantum-filtered imaging. For example, provided herein is an exemplary system that can include an arrangement which can be configured to extract and/or determine at least one Nuclear Magnetic Resonance (NMR) signal provided from an anatomical sample utilizing differences of phases of excitation pulses provided from an apparatus. The NMR signal(s) can relate to at least one multiple-quantum coherence in a presence of B0 inhomogeneities associated with the anatomical sample. The exemplary arrangement can be or include a triple and/or double quantum filter arrangement. Exemplary extraction or detection can be from quantum systems having up to N orders of coherence using a pair of paired phase cycles.

Abstract: The invention relates to a potting compound suitable for potting an electronic component, in particular a large-volume coil such as a gradient coil, consisting of a supporting matrix in which at least one filler made of polymer nanoparticles is distributed. At least one filler (11) that is used as a flame retardant is introduced into the supporting matrix (8).

Abstract: A magnetic resonance apparatus includes a magnet that generates a static magnetic field, e.g., 7T, and a resonance excitation system that induces resonance in an observed nuclear species such as 13C or 31P. A decoupling delay generator introduces pauses between adjacent pulses of a decoupling pulse train configured to decouple a coupled species such as 1H. An RF amplifier whose energy shortage capacity would be exceeded by the pulse train without the pauses amplifies the pulse train with the pauses. The pauses are sufficiently short that decoupling and Nuclear Overhauser Effect enhancement are not adversely affected, but long enough to provide recovery time to the RF amplifier, e.g., 0.2 msec.

Abstract: An apparatus, system, and method for phase detection of electromagnetic signals are presented. The apparatus may include a magnetic element, one or more first signal contacts coupled to the magnetic element for receiving a first signal, and one or more output contacts coupled to the magnetic element for providing a variable level voltage generated by the magnetic element, the level of the voltage being responsive to a phase difference between the first signal and a second signal. In a further embodiment, the apparatus may include a substrate for mechanically supporting the magnetic element. Additionally, the apparatus may include a conductor mechanically supported by substrate, the conductor configured to receive the second signal.

Abstract: Apparatus, methods, and other embodiments associated with magnetic resonance imaging (MRI) blipped trajectories having varying blip amplitudes are described. One example method includes controlling an MRI apparatus to produce a set of blipped trajectories including a first blipped trajectory having a first blip amplitude and a second, different blipped trajectory having a second, different blip amplitude. The blip amplitudes may be based on a relationship between a trajectory and a reference. The relationship may be, for example, a rotation angle. The rotation angle may be a proxy for information including a gradient trajectory speed associated with a blipped trajectory or an amount of unused gradient energy available while producing the blipped trajectory. The blip amplitudes may be selected to produce incoherent sampling during an MRI acquisition that uses the blipped trajectories. In one example, readout directions may be altered between trajectories to reduce regularity in k-space.

Abstract: A magnetic resonance imaging “MRI” method and apparatus for lengthening the usable echo-train duration and reducing the power deposition for imaging is provided. The method explicitly considers the t1 and t2 relaxation times for the tissues of interest, and permits the desired image contrast to be incorporated into the tissue signal evolutions corresponding to the long echo train. The method provides a means to shorten image acquisition times and/or increase spatial resolution for widely-used spin-echo train magnetic resonance techniques, and enables high-field imaging within the safety guidelines established by the Food and Drug Administration for power deposition in human MRI.