A therapeutic device is provided, including a cylindrical gantry; a pedestal, a particle beam irradiation device, a first rail, and a second rail all disposed in the gantry; the first rail including an arc-shaped portion and a straight portion, the second rail having a same shape as the first rail, a rail motor on the second rail to rotate the second rail in a opposite direction than that of the gantry, first and second moving floors on the rails and respectively including first floor panels rotatably connected to each other and second floor panels rotatably connected to each other, a first end panel of the first floor and a fourth end panel of the second floor being detachably connected to the irradiation device, and a second end panel of the first floor being detachably connected to a third end panel of the second floor.

A method for treating a cancerous tumor, by implanting in the cancerous tumor at least one diffusing alpha-emitter radiation therapy (DaRT) source (21) with a suitable radon release rate and for a given duration, such that the source (21) provides during the given duration a cumulated activity of released radon of at least 10 Mega becquerel (MBq) hour, per centimeter length. Optionally, the sources (21) are implanted in an array (160) of sources (21), each source separated from its neighboring sources (21) in the array by not more than 4.5 millimeters.

A method for treating a tumor, comprising identifying a tumor as a pancreatic cancer tumor and implanting in the tumor identified as a pancreatic cancer tumor, at least one diffusing alpha-emitter radiation therapy (DaRT) source (21) with a suitable radon release rate and for a given duration, such that the source (21) provides during the given duration a cumulated activity of released radon between 5.6 Mega becquerel (MBq) hour and 11.6 MBq hour, per centimeter length.

A method for treating a tumor, comprising identifying a tumor as a breast cancer tumor and implanting in the tumor identified as a breast cancer tumor, at least one diffusing alpha-emitter radiation therapy (DaRT) source (21) with a suitable radon release rate and for a given duration, such that the source (21) provides during the given duration a cumulated activity of released radon between 3.5 Mega becquerel (MBq) hour and 9 MBq hour, per centimeter length.

Systems and methods for using electronic portal imaging devices (EPIDs) as absolute radiation beam measuring devices and as radiation beam alignment devices without implementation of elaborate and complex calibration procedures.

A method of a radiotherapy or radiosurgery treatment comprises steps of: (a) providing a converging x-ray beam source configured for emitting a converging X-ray beam propagating along an axis thereof; (b) emitting the converging x-ray beam towards a volume of treatment (VOT) having a length along the axis of the converging X-ray beam ranging between 2 mm and 5 cm within a patient's body such that a waist portion is within the VOT; (c) propagating the beam through tissues previously located relative to the VOT (PO); the VOT per se and tissues distally located to the VOT (DO). The converging X-ray beam characterized by a convergent angle ranging between 2 and 30 degrees providing 80% to 100% of a maximum dose is received by the VOT and less than 60% of the maximum dose is received by the PO and the DO.

Some embodiments of the present invention provide apparatus for detecting particles of radiation comprising: a plurality of solid state semiconductor detector devices provided at spaced apart locations along a beam axis, the detector devices each being configured to generate an electrical signal indicative of passage of a particle through or absorption of a particle by the device; and at least one absorber portion configured to absorb at least a portion of an energy of a particle, wherein one said at least one absorber portion is provided in a particle path between at least one pair of adjacent detector devices, the apparatus being configured to provide an output signal indicative of the energy of a particle, the output signal provided being dependent on the electrical signals indicative of passage of a particle through or absorption of a particle by the devices.

An installation area of a particle beam treatment system is reduced. The particle beam irradiation system includes an accelerator which is installed on a floor surface and accelerates a charged particle beam, a transport device which transports the charged particle beam emitted from the accelerator, an irradiation device which irradiates an irradiation target with the charged particle beam transported by the transport device, and a gantry which is installed on the floor surface, and to which the irradiation device is attached. The gantry includes a rotating body which rotates the irradiation device about the irradiation target, and a support device which supports the rotating body from the floor surface at a position where a projection plane of the rotating body on the floor surface and a projection plane of the accelerator or the transport device on the floor surface at least partially overlap with each other.

Systems and methods for using electronic portal imaging devices (EPIDs) as absolute radiation beam measuring devices and as radiation beam alignment devices without implementation of elaborate and complex calibration procedures.

An apparatus for evaluating a change in radiation distribution within a target tissue of a patient, the apparatus constituted of: a memory having stored thereon parameters of radiation to be output by an irradiation source, the radiation parameters determined responsive to a reference image of the patient target tissue; a processor in communication with the memory; and an output module in communication with the processor, wherein the processor is arranged to: receive a present image of the patient target tissue; determine the expected distribution of radiation within the patient target tissue for an irradiation incidence according to the stored radiation parameters; determine the difference between the determined distribution and a predetermined distribution parameter; and control the output module to output a signal responsive to the determined difference.