Abstract: The invention involves a radiological image detection system capable of cooperating with a scanning X-ray generator designed to produce X-ray radiation scanning a surface to be imaged. The scanning X-ray radiation irradiates, portion after portion, the surface to be imaged. The X-ray radiation from a portion carries a radiological image of the portion. The detection system comprises an image sensor which is stationary with respect to the scanning and which is dimensioned so as to be able to acquire an image of the surface to be imaged by the X-ray radiation from the portion. In addition, it comprises a device for limiting, at a given time, the acquisition of the image sensor to that of the image of the portion irradiated at that time.

Abstract: The invention relates to microwave windows used for providing a vacuum seal and transmitting the electromagnetic energy output by a high-power microwave tube. The window comprises a dielectric disk and a prestressing ring, placed around the periphery of the disk, exerts, when at rest, a radial compressive stress all around the disk. In practice, the disk is brazed to the inside of a metal skirt, and the prestressing ring is an annular portion of a holder used for rigidly fastening the microwave window to an output of the microwave tube. The annular portion has an increased thickness and bears locally on the skirt around the disk. The disk may be made of alumina, the metal skirt made of copper, and the holder made of stainless steel. The resistance of the window to thermal stresses is considerably improved thereby.

Abstract: The invention involves a radiological image detection system capable of cooperating with a scanning X-ray generator (10) designed to produce X-ray radiation (1) scanning a surface (2) to be imaged. The scanning X-ray radiation (1) irradiates, portion (2?) after portion, the surface (2) to be imaged. The X-ray radiation from a portion (2?) carries a radiological image of said portion. The detection system comprises an image sensor (22, 52) which is stationary with respect to the scanning and which is dimensioned so as to be able to acquire an image of the entire surface (2) to be imaged by the X-ray radiation from the portions (2?). In addition, it comprises means (24, 240) for limiting, at a given time, the acquisition of the image sensor (22, 52) to that of the image of the portion (2?) irradiated at that time, these limitation means being in synchronism with the scanning and in geometrical correspondence with the irradiated portion (2?).

Abstract: A radiological image detection system capable of cooperating with a scanning X-ray generator designed to produce X-ray radiation scanning a surface to be imaged. The scanning X-ray radiation irradiates, portion after portion, the surface to be imaged. The X-ray radiation from a portion carries a radiological image of the portion. The detection system includes an image sensor that is stationary with respect to the scanning and dimensioned to acquire an image of the entire surface to be imaged by the X-ray radiation from the portions. In addition, the detection system includes a mechanism to limit, at a given time, the acquisition of the image sensor to that of the image of the portion irradiated at that given time, the limitation mechanism being in synchronism with the scanning and in geometrical correspondence with the irradiated portion.

Abstract: A pulse generator includes a microwave source that delivers a pulsed signal into a resonant compression cavity equipped with a switching device for opening or closing the resonant compression cavity. The pulsed signal is stored in the resonant compression cavity when closed to be compressed therein before being delivered with a greater amplitude and a smaller width when the resonant compression cavity is open. The microwave source is of the amplifier type with an instantaneous bandwidth including the resonant frequency of the resonant compression cavity. The microwave source receives, at an input, an input signal to be amplified that is taken from the resonant compression cavity. Such a pulse generator can find particular application in high-power pulse generators.