A nanoparticle for radiation protection is provided. The nanoparticle for radiation protection comprises a first metal oxide nanoparticle. The nanoparticle for radiation protection may further comprise a second metal oxide layer formed on a surface of the first metal oxide nanoparticle. The nanoparticle for radiation protection may have a polar interface between the first metal oxide nanoparticle and the second metal oxide layer.

Infusion system configurations and assemblies facilitate routing of infusion circuit tubing lines. Tubing lines are routed into and out from compartments of a shielding assembly for the infusion system, at locations which prevent kinking and/or crushing of the lines, and/or provide for ease in assembling the circuit. A plurality of the lines may be held together by a support frame to form a disposable infusion circuit subassembly, that can further facilitate routing of the lines.

Apparatuses (devices, systems) and methods for shielding (protecting) surroundings around periphery of regions of interest located inside objects (e.g., patients) from radiation emitted by X-ray systems towards the objects. Apparatus includes: at least one radiation shield assembly including a support base connectable to an X-ray system radiation source or detector, and a plurality of radiation shield segments sequentially positioned relative to the support base, thereby forming a contiguous radiopaque screen configured for spanning around the region of interest periphery with a radiopaque screen edge opposing the object. Radiation shield segments are individually, actively controllable to extend or contract to selected lengths with respective free ends in directions away from or towards the support base(s), for locally changing contour of the radiopaque screen edge. Applicable for shielding (protecting) medical personnel, and patients, from exposure to X-ray radiation during medical interventions or/and diagnostics.

An example method includes: receiving, from a treatment planning process, information that is based on a dose distribution for an irradiation target; and performing at least one of the following operations: moving structures to trim spots of a particle beam so that the spots of the particle beam approximate pre-trimmed spots for which characteristics are obtained based on the information received; moving structures to produce a trimming curve for a layer of an irradiation target based on a specification of a trimming curve for the layer included in the information received; moving structures to produce a single trimming curve for all radiation fields of an irradiation target based on specifications of the single trimming curve included in the information received; or moving structures based on configuration information for the structures in the information received.

A radiotherapy apparatus adapted for use with a Magnetic Resonance Imaging (MRI) system, the radiotherapy apparatus comprising a linear accelerator, the linear accelerator including an electron source. In the linear accelerator electrons which are introduced by the source are accelerated to impact on a target and produce a beam of radiotherapeutic radiation. The linear accelerator has an accelerator waveguide within which the electrons are accelerated and an external waveguide enclosure; this enclosure extends substantially continuously over the accelerator waveguide. The waveguide enclosure is formed of a high magnetic permeability material and has a first aperture for the beam of radiotherapeutic radiation where the beam exits the waveguide enclosure and enters the MRI system and a second aperture for an RF guide for the introduction of electrons into the accelerator waveguide and for electrical lines for the particle source and coolant lines for the waveguide to pass through the enclosure and no other openings. The waveguide enclosure is preferably fabricated in a plurality of discrete parts.

A neutron capture therapy system includes an accelerator for accelerating charged particles to generate a charged particle beam, a beam transmitting device, and a neutron beam generating device. The neutron beam generating device further includes a first, a second and a third neutron beam generating device. The beam transmitting device further includes a first transmitting device connected to the accelerator, a beam direction conversion device configured to switch a traveling direction of the charged particle beam, and a second, a third and a fourth transmitting device that respectively transmit the charged particle beam from the beam direction conversion device to the first, the second and the third neutron beam generating device, wherein two of the first, the third and the fourth transmitting device define a first plane, a first and a second transmitting device define a second plane, and the first plane is different from the second plane.

The present disclosure relates to a motion guidance assembly for guiding the motion of a collimator device. The motion guidance assembly may include a first pair of flexible plates connected to the collimator device. The first pair of flexible plates may be deformable in a direction perpendicular to an opening of the collimator device. A deformation of the first pair of flexible plates may guide the motion of the collimator device based on a driving force.

According to the present invention, disclosed is a radiotherapy apparatus for an animal, comprising: a treatment part including an accommodation space for placing an animal thereon; an irradiation part including an electron generator and a linear accelerator coupled to one side of the electron generator and placed in a direction perpendicular to the treatment part for emitting radiation toward the treatment part; and an image acquisition part, positioned at a predetermined interval with the treatment part along the direction of the emitting of radiation, for acquiring an image of an irradiation area when radiation is emitted, wherein an output of radiation is between 1 and 2 MeV so that radiation is emitted to an affected area positioned within a predetermined distance from the epidermis of the animal.

Systems and methods for the delivery of linear accelerator radiotherapy in conjunction with magnetic resonance imaging in which components of a linear accelerator may be placed in shielding containers around a gantry, may be connected with RF waveguides, and may employ various systems and methods for magnetic and radio frequency shielding.

An external beam radiation therapy method is described, wherein radiation therapy is performed on a subject by applying at least one ionizing radiation beam to the subject. While applying the at least one ionizing radiation beam to the subject, an ultrasound probe images the subject, where the ultrasound probe is not located in the ionizing radiation beam. While applying the ionizing radiation beam to the subject, a dosimeter that is integral with or attached to the ultrasound probe measures the radiation dose or radiation exposure received by the ultrasound probe.