Abstract: A method for measuring dosage by means of a radiation detector, especially an X-radiation or gamma-radiation detector, used in the spectroscopic mode, and a dosage measurement system using said method. A range of energies and a dose type H is chosen, a radiation detector of a given type is used, spectra measured by the detector are established for various radiations of the given type, the energies of which are within the chosen range and the respective doses of which are known, and from the spectra, a weighting function is established, that is a correspondence between a mean dose increment and a mean energy, deposited into the detector. This enables a person provided with a dosimeter identical to the detector to know at any time the mean absorbed dose rate, expressed in the amount H.

Abstract: A method for controlling the gain and zero of a multiple pixel photon counter device, and light-measuring system implementing said method. Signals provided by the device are acquired for predefined periods, until a predefined total measurement time is reached, an amplitude histogram is formed from the acquired signals, the positions of two consecutive peaks, measurable on the histogram, are determined, an error signal is produced, which is equal to the deviation between both peaks and, by means of the same, the voltage supplying the device is regulated, so as to keep the deviation equal to a predefined set point.

Abstract: A method for measuring dosage by means of a radiation detector, especially an X-radiation or gamma-radiation detector, used in the spectroscopic mode, and a dosage measurement system using said method. A range of energies and a dose type H is chosen, a radiation detector of a given type is used, spectra measured by the detector are established for various radiations of the given type, the energies of which are within the chosen range and the respective doses of which are known, and from the spectra, a weighting function is established, that is a correspondence between a mean dose increment and a mean energy, deposited into the detector. This enables a person provided with a dosimeter identical to the detector to know at any time the mean absorbed dose rate, expressed in the amount H.

Abstract: A method for controlling the gain and zero of a multiple pixel photon counter device, and light-measuring system implementing said method. Signals provided by the device are acquired for predefined periods, until a predefined total measurement time is reached, an amplitude histogram is formed from the acquired signals, the positions of two consecutive peaks, measurable on the histogram, are determined, an error signal is produced, which is equal to the deviation between both peaks and, by means of the same, the voltage supplying the device is regulated, so as to keep the deviation equal to a predefined set point.

Abstract: The invention relates to the field of line control of a beam, and especially to a device comprising a plurality of ionisation chambers, enabling the measurement of the dose deposited by an ionising beam and the field of said beam. At least one ionisation chamber is formed from support films having a thickness less than or equal to 100 nm.

Abstract: A method for measuring a dose of irradiation with a beam of ionizing radiation capable of creating Cherenkov radiation, in which a scintillator for emitting scintillation light, whose intensity is a function of the dose of this beam irradiating this scintillator, is arranged below this beam, the scintillator is coupled, via an optical fiber, to a device for measuring the light emitted by the scintillator, and the quantity of light transmitted by the optical fiber is measured, is described. The light emerging from the opposite end of the optical fiber is filtered using two bandpass filters having cutoff bands in different parts of the spectrum, the intensity of the light coming from these two filters is measured a plurality of times, and the pluralities of quantities of scintillation light and Cherenkov radiation are calculated on the basis of these measurements to deduce a first irradiation dose value.

Abstract: A beam inspection device includes an inspection head having a scintillator and at least one ionizing radiation diffuser block connected to the scintillator. At least one image may be formed from at least one part of the inspection head that includes the scintillator. The device may discriminate between a scintillation light from the scintillator and stray {hacek over (C)}erenkov light in the inspection head. The scintillator includes at least one heavy plate having two principal opposing faces, the plate being approximately homogeneous with the scintillation material, and the diffuser block covers at least one of the principle faces of the scintillator plate.

Abstract: The invention related to a method for measuring a dose of radiation by a beam of high-power radiation, where in a scintillate (1) is disposed below said beam in order to emit scintillation light whose intensity is a function of the dose of said beam irradiating said scintillate (1); the scintillate (1) is coupled to a device (8) for measuring the light emitted by the scintillate (1) via an optical fiber (2); the amount of light transmitted by the optical fiber (2) is measured; the intensity of the light emitted by the scintillate (1) is determined on the basis of the light emitted by at least one other source, after said optical fiber (2) is used for transmission of the light emitted by the scintillate (1) and the light emitted by each other source. The invention also related to a device for measuring the dose of radiation for the implementation of said method.

Abstract: A beam inspection device is disclosed. The device includes an inspection head comprising a scintillator and at least one ionizing radiation diffuser block connected to the scintillator. Also included are first means for forming at least one image from at least one part of the inspection head that includes the scintillator. Means for discriminating between a scintillation light from the scintillator and stray {haeck over (C)}erenkov light in the inspection head are included in the device. The scintillator includes at least one heavy plate having two principal opposing faces, the plate being approximately homogeneous with the scintillation material, and the diffuser block covers at least one of the principal faces of the scintillator plate.