![]() Deflection and stress due to mechanical loading.Forces and losses – coils, yokes and shielding.Stray field / shielding effectiveness (EMC/EMI).Associated Legendre polynomial coefficients.Standard results (depending on solution performed) include: The software today provides comprehensive multi-physics simulation that is capable of investigating thermal and stress in addition to electromagnetics. Opera was developed with this requirement in mind, and as a result many leading MRI and NMR equipment manufacturers use Opera for designing superconducting magnets, for carrying out quench simulations, and for designing magnet shielding. Because extremely high field precision is required in the imaging zone, the MRI/NMR application is particularly demanding. The software can also track charged particles through electromagnetic fields. The application-focused software has evolved over the years and today provides comprehensive multi-physics simulation capable of investigating thermal and stress in addition to electromagnetics. Opera is widely used by the scientific community for designing magnets for use in particle accelerators, ion-beam devices, MRI/NMR and a wide variety of other magnetic devices. ![]() Opera has earned its position as the foremost FEA design tool for magnets of all types by its consistent accuracy, ease of use, and ability to handle large and complex simulations routinely. Growing in popularity are carbon nano-tube emitters, which, because of their size, may be used in more portable devices. Field emission, compared to the thermionic emission, can be a more attractive mechanism in extracting electrons from the cathodes because the electrons are emitted at room temperature (cold cathode) by the quantum mechanical field effect which requires less electrical power. ![]() It is possible to include multiple species of charged particles, each having user defined charge and mass. It uses the Finite Element method to solve Maxwell’s equations for the steady-state case in a discretized model, and provides a self-consistent solution including the effects of space-charge, self-magnetic fields and relativistic motion.Ī comprehensive set of emitter models is provided, including thermionic and field effect emission from surfaces, secondary emission from surfaces and within volumes (used to model gas ionization), and models for unmagnetized and magnetized plasmas. The Charged Particle Module calculates the interaction of charged particles in electrostatic and magnetostatic fields.
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