A radiation therapy system comprises a magnetic resonance imaging (MRI) system combined with an irradiation system, which can include one or more linear accelerators (linacs) that can emit respective radiation beams suitable for radiation therapy. The MRI system includes a split magnet system, comprising first and second main magnets separated by gap. A gantry is positioned in the gap between the main MRI magnets and supports the linac(s) of the irradiation system. The gantry is rotatable independently of the MRI system and can angularly reposition the linac(s). Shielding can also be provided in the form of magnetic and/or RF shielding. Magnetic shielding can be provided for shielding the linac(s) from the magnetic field generated by the MRI magnets. RF shielding can be provided for shielding the MRI system from RF radiation from the linac.

A radiation therapy system comprises a magnetic resonance imaging (MRI) system combined with an irradiation system, which can include one or more linear accelerators (linacs) that can emit respective radiation beams suitable for radiation therapy. The MRI system includes a split magnet system, comprising first and second main magnets separated by gap. A gantry is positioned in the gap between the main MRI magnets and supports the linac(s) of the irradiation system. The gantry is rotatable independently of the MRI system and can angularly reposition the linac(s). Shielding can also be provided in the form of magnetic and/or RF shielding. Magnetic shielding can be provided for shielding the linac(s) from the magnetic field generated by the MRI magnets. RF shielding can be provided for shielding the MRI system from RF radiation from the linac.

A housing for shielding a sensor from a radiofrequency field and an imaging system including the same are provided in the present disclosure. The imaging system may include a magnetic resonance imaging (MRI) device. The housing may include a plurality of walls forming at least a part of a cavity for accommodating a sensor of the imaging system. At least one of the plurality of walls may include a substrate and a multi-layered structure disposed on the substrate. The multi-layered structure may include a plurality of metallic layers. At least one pair of adjacent layers of the plurality of metallic layers may include slits. The slits of the at least one pair of adjacent layers may be staggered.

A housing for shielding a sensor from a radiofrequency field and an imaging system including the same are provided in the present disclosure. The imaging system may include a magnetic resonance imaging (MRI) device. The housing may include a plurality of walls forming at least a part of a cavity for accommodating a sensor of the imaging system. At least one of the plurality of walls may include a substrate and a multi-layered structure disposed on the substrate. The multi-layered structure may include a plurality of metallic layers. At least one pair of adjacent layers of the plurality of metallic layers may include slits. The slits of the at least one pair of adjacent layers may be staggered.

The present disclosure relates to a method and a system for minimizing electromagnetic interference (EMI) of magnetic resonance imaging (MRI) systems in complex electromagnetic environments. The method and system described herein provide superior MRI image quality and may reduce costs by eliminating the requirement of expensive shielding in MRI systems/hybrid MRI systems.

A radiation therapy system comprises a magnetic resonance imaging (MRI) system combined with an irradiation system, which can include one or more linear accelerators (linacs) that can emit respective radiation beams suitable for radiation therapy. The MRI system includes a split magnet system, comprising first and second main magnets separated by gap. A gantry is positioned in the gap between the main MRI magnets and supports the linac(s) of the irradiation system. The gantry is rotatable independently of the MRI system and can angularly reposition the linac(s). Shielding can also be provided in the form of magnetic and/or RF shielding. Magnetic shielding can be provided for shielding the linac(s) from the magnetic field generated by the MRI magnets. RF shielding can be provided for shielding the MRI system from RF radiation from the linac.

A radiation therapy system comprises a magnetic resonance imaging (MRI) system combined with an irradiation system, which can include one or more linear accelerators (linacs) that can emit respective radiation beams suitable for radiation therapy. The MRI system includes a split magnet system, comprising first and second main magnets separated by gap. A gantry is positioned in the gap between the main MRI magnets and supports the linac(s) of the irradiation system. The gantry is rotatable independently of the MRI system and can angularly reposition the linac(s). Shielding can also be provided in the form of magnetic and/or RF shielding. Magnetic shielding can be provided for shielding the linac(s) from the magnetic field generated by the MRI magnets. RF shielding can be provided for shielding the MRI system from RF radiation from the linac.

A housing for shielding a sensor from a radiofrequency field and an imaging system including the same are provided in the present disclosure. The imaging system may include a magnetic resonance imaging (MRI) device. The housing may include a plurality of walls forming at least a part of a cavity for accommodating a sensor of the imaging system. At least one of the plurality of walls may include a substrate and a multi-layered structure disposed on the substrate. The multi-layered structure may include a plurality of metallic layers. At least one pair of adjacent layers of the plurality of metallic layers may include slits. The slits of the at least one pair of adjacent layers may be staggered.

A housing for shielding a sensor from a radiofrequency field and an imaging system including the same are provided in the present disclosure. The imaging system may include a magnetic resonance imaging (MRI) device. The housing may include a plurality of walls forming at least a part of a cavity for accommodating a sensor of the imaging system. At least one of the plurality of walls may include a substrate and a multi-layered structure disposed on the substrate. The multi-layered structure may include a plurality of metallic layers. At least one pair of adjacent layers of the plurality of metallic layers may include slits. The slits of the at least one pair of adjacent layers may be staggered.

A magnetic resonance imaging (MRI) system, comprising a magnetics system having a plurality of magnetics components configured to produce magnetic fields for performing magnetic resonance imaging, electromagnetic shielding provided to attenuate at least some electromagnetic noise in an operating environment of the MRI system, and an electrical conductor coupled to the electromagnetic shielding and configured to electrically couple to a patient during imaging of the patient by the MRI system. The magnetics system may include at least one permanent B.sub.0 magnet configured to produce a B.sub.0 magnetic field for an imaging region of the MRI system. The B.sub.0 magnetic field strength may be less than or equal to approximately 0.2 T.