A prestored database indicating a correspondence of (depth)/HcJ (coercivity increment) and a prestored database indicating information of Dy diffusion condition (diffusion coefficient, diffusion flux and processing time regarding Dy diffusion) are used to compute distribution of Dy introduction amount in a magnet from shape information of the magnet and information of a Dy introduction face and compute distribution of HcJ in the magnet from the distribution of Dy introduction amount. Regarding a magnet having a coercivity that is distributed non-uniformly, a J/H curve is computed using the computed distribution of HcJ, and a demagnetizing factor at a predetermined temperature is computed using a temperature coefficient.

The present invention describes method directed to magnetic resonance (MR) imaging simulation, said method comprisingpartitioning a pulse sequence in parts that have RF excitation and parts that do not have RF excitation; for each of the parts that do not have the RF active, called gradient parts, performing compression of the gradient parts and then representing signals driving the gradients as an accumulation of area until a readout time point; and then performing the simulation.

A physical simulation apparatus includes element reception circuitry, a storage device, storage control circuitry, and simulation circuitry. The element reception circuitry successively receives sequence elements of a hardware control sequence that is divided according to a division rule on a transmission side. The storage device stores the received sequence elements. The storage control circuitry reads out the sequence elements stored in the storage device, in a case where a separately determined condition is satisfied. The simulation circuitry executes a physical simulation, based on the read-out sequence elements, and computes a predicted computation value of a signal value that a control target apparatus of the sequence elements collects.

The invention relates to method for determining respective transport properties of majority as well as minority charge carriers in a sample (107) comprising the majority and the minority charge carriers that correspond to electrons and holes or vice versa. The method particularly allows to determine the charge carrier density of the majority charge carriers and the charge carrier density of the minority charge carriers. For the method, a plurality of Hall measurement trials is performed on the sample (107), wherein during each Hall measurement trial, the sample (107) is exposed to an illumination intensity I, wherein a Hall coefficient and a conductivity are acquired from each Hall measurement trial, wherein in a first Hall measurement trial, the sample (107) is exposed to a first illumination intensity I.sub.1, in the range of zero to 0.02 suns, particularly wherein the first illumination intensity is zero, and a first Hall coefficient R.sub.H(I.sub.1) and a first conductivity (I.sub.1) are acquired, wherein from the first Hall coefficient and the first conductivity, a carrier mobility .sub.1 is determined, wherein in a second measurement trial, the sample (107) is exposed to a second illumination intensity I.sub.2 and a second Hall coefficient R.sub.H(I.sub.2) and a second conductivity (I.sub.2) are acquired, wherein from the second Hall coefficient and the second conductivity, a second carrier mobility .sub.2 is determined, wherein the second illumination intensity I.sub.2 is so high that a charge carrier density of electrons and a charge carrier density of holes in the sample (107) are identical, that the second Hall coefficient asymptotically approaches zero and that a second Hall mobility obtained from the product of the second Hall coefficient and the second conductivity asymptotically approaches a constant value, wherein a third carrier mobility .sub.3 is determined from the first and the second carrier mobility, particularly by subtracting the second carrier mobility from the first carrier mobility if the Hall coefficient has the same sign for the first and the second illumination intensity or by adding the second carrier mobility to the first carrier mobility if the Hall coefficient changes its sign for the first and the second illumination intensity, wherein the first carrier mobility .sub.1 is assigned to, particularly corresponds to a mobility of the majority charge carriers, .sub.2 is assigned to, particularly corresponds the absolute value of the difference between hole and electron mobility, and the third carrier mobility .sub.3 is assigned to, particularly corresponds to a mobility of the minority