Ion Beam Applications S.a.

Bruno Marchand

Caterina Brusasco

Damien Prieels

Sébastien De Neuter

Friedrich Friedl

Jean-François De Le Hoye

Bertrand Bauvir

The present invention relates to a device for dosimetry monitoring of a hadron beam, comprising successive ionization chambers obtained by a series of parallel detector plates separated from each other by a gas filled gap, each detector plate having a collecting part comprising a collecting side insulated from a bias voltage part comprising a bias voltage side and arranged in such a way that the collecting side is facing the bias voltage side of a subsequent detector plate, the resulting assembly of these detector plates forming a plurality of ionization chamber cells, the thicknesses and the choice of the materials of each layer constituting each detector plate as well as the gap of an ionization chamber cell have been selected in order to satisfy the condition that the water equivalent thickness of cell is equal to the length of said cell.

Device and method for monitoring a hadron beam

The present invention relates to a device and method for monitoring and verification of the quality of a radiation treatment beam in conformal radiation therapy, and in particular for IMPT (Intensity Modulated Particle Therapy) applications. The device comprises a 2D electronic detector measuring 2D responses to the delivered treatment beam. These 2D responses are compared with predicted 2D responses and differences in responses are signalled. Based on the measured 2D responses the effectively delivered 3D dose distribution in the target can be reconstructed.

Device and method for particle therapy monitoring and verification

An irradiation apparatus for irradiating by scanning a target volume according to a predetermined dose profile with a scanning beam of charged particles forming an irradiation spot on said target volume, said apparatus comprising:

Apparatus for irradiating a target volume

The invention concerns a device () for regulating the intensity of a beam extracted from a particle accelerator, such as a cyclotron, used for example for protontherapy, said particles being generated from an ion source. The invention is characterized in that it comprises at least: a comparator () determining a difference &#x3b5; between a digital signal Irepresenting the intensity of the beam measured at the output of the accelerator and a setpoint value Iof the beam intensity: a Smith predictor () which determines on the basis of the difference &#x3b5;, a correct value of the intensity of the beam I; an inverted correspondence table () supplying, on the basis of the corrected value of the intensity of the beam I, a setpoint value Ifor supply arc current from the ion source ().

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Mont-Saint-Guibert, Belgium

Bruno Marchand