Abstract: A computer-based method for generating one or more FTA fault trees from an FMEA table of a technical system or vice versa. The method includes defining a common data set for both the FMEA table and the one or more FTA fault tree(s) of the technical system, obtaining data of the common data set for the technical system, selecting a representation of the technical system as a FMEA table or as one or more FTA fault tree(s), and using the data of the common data for generating and displaying on a graphical user interface the FMEA table of the technical system or one or more FTA fault tree(s) of the technical system, depending on the selected representation.

Abstract: The present disclosure relates to scintillating detector systems for radiation therapy beams. In one implementation, a detector system for evaluating radiation delivered by a radiation beam output from a beam generator may include a phantom enclosing an internal volume and having an outer surface, extending around the internal volume, for exposure to radiation, and an inner surface coated, at least in part, with a scintillating material and facing the internal volume. The system may further include a camera external to the enclosed volume and configured to view at least a portion of the inner surface, through an opening of the hollow phantom, when radiated by the radiation beam. The system may further include at least one processor configured to receive images from the camera and calculate, based on the received images, a spatial dose distribution produced by the radiation delivered by the radiation beam to the hollow phantom.

Abstract: The present disclosure relates to scintillating detector systems for radiation therapy beams. In one implementation, a detector system for evaluating radiation delivered by a radiation beam output from a beam generator may include a phantom enclosing an internal volume and having an outer surface, extending around the internal volume, for exposure to radiation, and an inner surface coated, at least in part, with a scintillating material and facing the internal volume. The system may further include a camera external to the enclosed volume and configured to view at least a portion of the inner surface, through an opening of the hollow phantom, when radiated by the radiation beam. The system may further include at least one processor configured to receive images from the camera and calculate, based on the received images, a spatial dose distribution produced by the radiation delivered by the radiation beam to the hollow phantom.

Abstract: A sensing device for a radiation therapy apparatus, the apparatus comprising an accelerator and a beam-shaping device the beam shaping device being a multi-leaf collimator (MLC) (2) having a plurality of pairs of leaves, and a rotatable gantry, the sensing device comprising: a transmission electronic detector (1) comprising an array of ionization chambers. The ionization chambers are defined by a bias electrode (11a,11b, 34,42) on the one hand and by a planar array of conductive strips (40) or strip assemblies (30) on the other hand. The strips or strip assemblies are associated to the leaf pairs of the MLC. The strips are the collecting electrodes of the ionization chambers.

Abstract: A sensing device for a radiation therapy apparatus, the apparatus comprising an accelerator and a beam-shaping device the beam shaping device being a multi-leaf collimator (MLC) (2) having a plurality of pairs of leaves, and a rotatable gantry, the sensing device comprising: a transmission electronic detector (1) comprising an array of ionization chambers. The ionization chambers are defined by a bias electrode (11a,11b, 34,42) on the one hand and by a planar array of conductive strips (40) or strip assemblies (30) on the other hand. The strips or strip assemblies are associated to the leaf pairs of the MLC. The strips are the collecting electrodes of the ionization chambers.

Abstract: The present disclosure relates to a radiation sensor. In one implementation, the sensor may include a radiation detector array having a plurality of pixels; at least two readout connectors having a plurality of contacts, each readout connector being configured for receiving a readout module; a routing circuit having conductors configured for routing electrical signals from each of the plurality of pixels to a corresponding contact of one of the readout connectors. The plurality of pixels is grouped in two or more groups of pixels, at least two pixels of a first group of pixels being separated by at least one pixel from another group of pixels. The routing circuit is configured for leading pixels of the first group of pixels to a first readout connector, and pixels from the other group of pixels to a second readout connector.

Abstract: The present disclosure relates to a radiation sensor. In one implementation, the sensor may include a radiation detector array having a plurality of pixels; at least two readout connectors having a plurality of contacts, each readout connector being configured for receiving a readout module; a routing circuit having conductors configured for routing electrical signals from each of the plurality of pixels to a corresponding contact of one of the readout connectors. The plurality of pixels is grouped in two or more groups of pixels, at least two pixels of a first group of pixels being separated by at least one pixel from another group of pixels. The routing circuit is configured for leading pixels of the first group of pixels to a first readout connector, and pixels from the other group of pixels to a second readout connector.

Abstract: The present invention relates to a dosimetry device (10) for determining a spatial distribution of a quantity of radiation incident on the dosimetry device. The device comprises a segmented electrode assembly (12) comprising an electrically non-conducting substrate (13) having a plurality of electrode elements (14) provided thereon, surrounded by ground electrodes. The device further comprises an electrically conducting sheet (16) comprising a protrusion (17) arranged such as to define a plurality of ionization chamber cavities (18) between the segmented electrode assembly (12) and the electrically conducting sheet (16). The device also comprises a voltage applying means (28) for applying a voltage difference between the electrically conducting sheet (16) and the plurality of electrode elements (14) and a routing means (25) for routing a plurality of ionization currents corresponding to the plurality of electrode elements (14) to a processing means.

Abstract: Bidimensional dosimetric detector, comprising: a monolithic base-matrix (1) made of homoepitaxial silicon with a surface for exposition to the radiation, a plurality of radiation-sensible junction diodes (2) for producing a plurality of electrical signals in response to the radiation, electrical terminals (3) connected to said diodes for feeding said produced electrical signals to an acquisition and processing unit (5), wherein the perimeter of one or more said diodes is defined by a boundary region of the electrical field of same diode.

Abstract: Bidimensional dosimetric detector, comprising: a monolithic base-matrix (1) made of homoepitaxial silicon with a surface for exposition to the radiation, a plurality of radiation-sensible junction diodes (2) for producing a plurality of electrical signals in response to the radiation, electrical terminals (3) connected to said diodes for feeding said produced electrical signals to an acquisition and processing unit (5), wherein the perimeter of one or more said diodes is defined by a boundary region of the electrical field of same diode.

Abstract: The opto-acoustic generator of ultrasound waves comprises an optical fiber associated to a laser-energy source, and an opto-acoustic transducer which is applied to said fiber and is designed to be impinged upon by the laser beam and to absorb partially the energy, converting it into thermal energy, thus bringing about the formation of ultrasound waves by the thermo-acoustic effect. Said opto-acoustic transducer consists of a layer or film containing prevalently graphite, which is applied on a surface of said optical fiber.

Abstract: The opto-acoustic generator of ultrasound waves comprises an optical fiber associated to a laser-energy source, and an opto-acoustic transducer which is applied to said fiber and is designed to be impinged upon by the laser beam and to absorb partially the energy, converting it into thermal energy, thus bringing about the formation of ultrasound waves by the thermo-acoustic effect. Said opto-acoustic transducer consists of a layer or film containing prevalently graphite, which is applied on a surface of said optical fiber.