A system can have an x-ray source that generates a series of individual x-ray pulses for multi-energy imaging. A first x-ray pulse can have a first energy level and a subsequent second x-ray pulse in the series can have a second energy level different from the first energy level. An x-ray imager can receive the x-rays from the x-ray source and can detect the received x-rays for image generation. A generator interface box (GIB) controls the x-ray source to provide the series of individual x-ray pulses and synchronizes detection by the x-ray imager with generation of the individual x-ray pulses. The GIB can control x-ray pulse generation and synchronization to optimize image generation while minimizing unnecessary x-ray irradiation.

The invention comprises a method and apparatus for reducing a kinetic energy of positively charged particles, comprising the steps of: (1) transporting the positively charged particles from an accelerator into an exit nozzle system along a beam line; (2) providing a first chamber of the exit nozzle system, the first chamber comprising: an incident side comprising an incident aperture, an exit side comprising an exit aperture, and a beam path of the positively charged particles from the incident aperture to the exit aperture; (3) filling the beam path in the chamber with a liquid; and (4) using the liquid to reduce the kinetic energy of the positively charged particles. The kinetic energy dissipater is optionally used in combination with a proton therapy cancer treatment system and/or a proton tomography imaging system.

A computer-implemented method for a radiation therapy system includes: acquiring a first X-ray image of a region while the region is in a first location, the gantry is in a first imaging position, and a center axis of an imaging beam passes through an isocenter of the radiation therapy system along a first imaging path; acquiring a second X-ray image of the region while the region of patient anatomy is in the first location, the gantry is in a second imaging position, and the center axis of the imaging beam passes through the isocenter along a second imaging path, wherein an angle between the first imaging path and the second imaging path is a non-orthogonal angle; and based on the first X-ray image, the second X-ray image, and a three-dimensional treatment planning image of the region, determining an offset between a planning location for the region and the first location.

The present application relates to a data processing method for determining the position of a soft tissue body part within a patient's body. The data processing method includes acquiring CT-image data including information about the position of the body part within a coordinate system assigned to a transportable CT-device, wherein the patient's body is positioned relative to the treatment device, and wherein the CT-device is configured to be positioned relative to the patient's body and/or relative to the treatment device, acquiring first transformation data including information about a first transformation between the coordinate system assigned to the CT-device and a coordinate system assigned to the treatment device, and determining, based on the CT-image data and the first transformation data, position data including information about the position of the body part within the coordinate system assigned to the treatment device.

The present invention relates to a smart apparatus for acquiring patient images, the smart apparatus being structured so as to integrate capabilities for acquiring two-dimensional images and three-dimensional images into a single piece of equipment, thereby allowing the expense and installation space therefor to be minimized. The smart apparatus for acquiring patient images according to the present invention comprises: a gantry having a cylindrical opening; CT X-ray tube and curved X-ray detector installed in the gantry 180 degrees apart and installed so as to be rotatable along the circumferential direction of the gantry to acquire three-dimensional images of a person being treated accommodated in the interior of the opening of the gantry by rotating around the person; two-dimensional X-ray tube and X-ray detector installed in the gantry 180 degrees apart and installed, along with the CT X-ray tube and curved X-ray detector, so as to be rotatable along the circumferential direction of the gantry to acquire two-dimensional x-ray images of a person being treated accommodated in the interior of the opening of the gantry; a rotation means for simultaneously rotating the CT X-ray tube and X-ray detector and two-dimensional X-ray tube and X-ray detector along the circumferential direction of the gantry; a couch disposed on one side of the gantry so as to be horizontally movable in and out of the opening of the gantry and on which the person to be treated is placed.

The radiographic imaging apparatus is configured so that an irradiation device is mounted on a rotary drum of a rotary gantry. A pair of X-ray sources is disposed outside the rotary drum and attached to the outer surface of the rotary drum. A pair of FPDs facing the respective X-ray sources is mounted in the irradiation device. When X-rays are irradiated, X-ray intensity information is calculated by a signal processing device based an output signal from each radiation detection element of each FPD, and stored in a memory. Based on FOV information set by an input device, an X-ray intensity acquisition device acquires multiple pieces of X-ray intensity information that are calculated based on the output signals from the radiation detection elements in small FOV areas (or large FOV areas) of the FPDs, which are included in the X-ray intensity information stored in the memory.

The present disclosure relates to a radiation system. The system may include a treatment assembly, an imaging assembly, a first gantry, and a second gantry. The treatment assembly may include a first radiation source configured to deliver a treatment beam and have a treatment region. The first gantry may be configured to support the first radiation source. The imaging assembly may include a second radiation source and a radiation detector. The second radiation source may be configured to deliver an imaging beam and the radiation detector may be configured to detect at least a portion of the imaging beam. The imaging assembly may have an imaging region. The second gantry may be configured to support the second radiation source and the radiation detector, wherein the second radiation source is located within the second gantry. The treatment region and the imaging region at least partially overlap.

Systems and methods are provided for radiation delivery. An exemplary method includes receiving an image depicting anatomical data of a target region of patient tissue and determining an initial prescribed dose of radiotherapeutic radiation to be delivered to the target region. The method also includes discretizing the arc for VMAT into a plurality of arc segments and performing an iteration process for determining an arc dose according to radiation delivered in the arc segments. The method further includes determining whether a condition for terminating the iteration process is met and terminating the iteration process based on a result of the determination that the condition for terminating the iteration process is met.

A method of image-guided radiation treatment is described. The method includes processing a first and second sets of image data to generate an enhanced image, wherein the enhanced image comprises a combination of the first and second sets of image data, wherein part or all of the image data comprises a target of a patient. The method also includes registering the enhanced image with another image to obtain a registration result and tracking the target using the registration result to generate tracking information. The method also includes directing treatment delivery to the target based on the tracking information obtained from the enhanced image.

Some implementations provide a method that includes: placing a human subject on a moveable platform located in a room with a magnetic resonance imaging (MRI) scanner and a radiation therapy machine; moving the platform into a first position such that the human subject is positioned to be imaged by MRI; operating the MRI scanner while the platform is in the first position to obtain an image of the human subject; moving the platform into a second position such that the human subject is in position to receive radiation therapy from the radiation therapy machine; reducing the magnetic field such that the magnetic field at the radiation therapy machine is below a threshold value; and while the platform is in the second position and the magnetic field at the radiation therapy machine is below the threshold value, operating the radiation therapy machine to perform radiation therapy on the human subject.