Disclosed are a neutron capture therapy apparatus and an operation method of a monitoring system thereof. The neutron capture therapy apparatus includes a neutron beam irradiation system, a measurement system and a monitoring system. The neutron beam irradiation system is used for generating a neutron beam suitable for carrying out neutron irradiation therapy on a sick body, the measurement system is used for measuring real-time irradiation parameters during a neutron beam irradiation therapy process, and the monitoring system is used for controlling the whole neutron beam irradiation process. The monitoring system includes an input section for inputting preset irradiation parameters, a storage section for storing the irradiation parameters, a modification section for modifying some of the irradiation parameters in the storage section, and a display section for displaying the irradiation parameters in real time.

A particle beam adjustment device includes: a position monitor that detects a positional deviation of a particle beam transported from a beam transport section; an interlock device to interrupt irradiation of the particle beam when a positional deviation of the particle beam is detected by the position monitor; a pair of screen monitors that measure position and angle of an axis of the particle beam; a correction electromagnet that controls the axis of the particle beam by adjusting a magnetic field on a basis of a signal indicating the particle beam position and angle measured by the screen monitors; and a beam scanning electromagnet that irradiates an irradiation target with the particle beam. One of the screen monitors is installed outside a treatment room, and the other screen monitor and the position monitor are installed inside the treatment room.

Embodiments of the present disclosure provide a positioning method and apparatus, and a radiation therapy system. The positioning method comprises: acquiring a current gamma angle before radiation beams of a radiation source illuminate a treatment body part; acquiring a reconstructed image corresponding to the current gamma angle, the reconstructed image being an image reconstructed according to an image of the treatment body part acquired in advance; acquiring an IGRT image of the treatment body part corresponding to the current gamma angle, the IGRT image being an image generated by an image guide system; and comparing the reconstructed image with the IGRT image to obtain a deviation of the position of the treatment body part, and sending out the deviation, so that the position of the treatment body part is adjusted according to the deviation when the deviation is greater than a preset threshold.

Provided are a method and apparatus for manufacturing a radiation beam intensity modulator. The method includes: obtaining dose modulation information expressed as a density matrix or three-dimensional (3D) structure information provided from a radiotherapy treatment planning system; obtaining design condition information of a radiation beam intensity modulator provided from the radiotherapy treatment planning system; generating a radiation beam intensity modulator structure based on the design condition information of the radiation beam intensity modulator and the dose modulation information expressed as the density matrix or the 3D structure information; adjusting the radiation beam intensity modulator structure by comparing at least one of an actual manufacturing condition and a treatment condition with the design condition information of the radiation beam intensity modulator; and manufacturing the radiation beam intensity modulator based on the radiation beam intensity modulator structure that is adjusted.

A system for treating a patient during radiation therapy is disclosed. The system includes a shell, a plurality of material inserts disposed in the shell, where each material insert of the plurality of material inserts respectively shapes a distribution of a dose delivered to the patient by a respective beam of a plurality of beams emitted from a nozzle of a radiation treatment system, and a scaffold component disposed in the shell that holds the plurality material inserts in place relative to the patient such that each material insert lies on a path of at least one of the beams.

Systems, devices, and methods are presented for automatic tuning, calibration, and verification of radiation therapy systems comprising control elements configured to control parameters of the radiation therapy systems based on images obtained using electronic portal imaging devices (EPIDs) included in the radiation therapy system.

A photon source emits a flattening filter-free photon beam. A control circuit operably couples to a multi-layer multi-leaf collimator that is disposed between the photon source and a treatment area of a patient. The control circuit automatically arranges operation of some, but not all, of the layers of the multi-layer multi-leaf collimator to serve as a virtual flattening filter with respect to the flattening filter-free photon beam emitted by the photon source. By one approach, another of the layers of the multi-layer multi-leaf collimator serves to form a treatment aperture corresponding to a shape of the treatment area of the patient. By one approach the control circuit comprises an integral part of a treatment platform (as versus a dedicated treatment planning platform) and can carry out most or even essentially all of the planning steps that lead to administration of the treatment to a patient.

A radiotherapy apparatus is disclosed, with a linear accelerator for producing a beam of electrons, a target aligned with the electron beam, the target being capable of producing photons when electrons are incident thereon, and a material which is capable of producing neutrons when photons of sufficient energy are incident thereon. A neutron detector capable of providing a signal to a controller of the linear accelerator is provided, the controller being capable of varying the energy of the electrons of the electron beam.

Disclosed are a neutron dose detection apparatus and a neutron capture therapy device. The neutron dose detection apparatus includes at least two counting rate channels and a counting rate channel selection unit used for selecting one of the at least one counting rate channels. The counting rate channel includes a detector used for detecting neutrons and outputting a signal, a signal processing unit used for processing the signal output by the detector, and a counter used for counting the signal output by the signal processing unit.

Apparatus for planning a diffusing alpha-emitter radiation therapy (DaRT) treatment session. The apparatus includes an output interface and a memory configured with a plurality of tables which provide an accumulated measure of radiation over a specific time period, due to one or more types of DaRT radiotherapy sources which emit daughter radionuclides from the source, for a plurality of different distances and angles relative to the DaRT radiotherapy source. In addition, a processor is configured to receive a description of a layout of a plurality of DaRT radiotherapy sources in a tumor, to calculate a radiation dose distribution in the tumor responsive to the layout, using the tables in the memory, and to output feedback for the treatment responsive to the radiation dose distribution, through the output interface.