Device for localizing radiation sources in real time
OwnerGenevieve Simonetinventor
Life of this patent
Estimating the term…
Abstract
Device for the real-time localization of radiation sources, comprising a pinhole chamber (4) whose walls form a shield, and, within the chamber and opposite the pinhole (16), a screen (28) which is transparent in the luminous range and capable of converting the source radiation into luminous radiation and of preventing the light in the area from reaching the screen while remaining transparent to the source radiation. A camera (30) is connected to the screen and provides an image of the sources in the form of electric signals, by virtue of the luminous radiation it receives from the screen, as well as an image of the area by virtue of the light it receives from this area through the screen when a shutter is open. The images can be superposed and can be made visible through signal processing and display.
Claims14
Device for the localization of radiation sources (2) liable to be found in a given area, said device comprising a pinhole chamber (4) whose walls from a shield against the radiation emanating from said sources, and means (20) for shuttering said pinhole chamber, said shuttering means being transparent to radiation from said sources, said device comprising, furthermore, in said pinhole chamber and opposite a pinhole (16), a luminescent screen (28) which is transparent in a luminous range and which is capable of converting said radiation from said sources into luminous radiation, said shuttering means being, in addition, capable of preventing light from said area from reaching said screen, said device also comprising a camera (30) connected optically to said screen and capable of providing, in the form of electric signals, an image of said sources by means of luminous radiation which said camera receives from said screen, and an image of said area by means of said light which said camera receives from said area through said screen when said shuttering means are open, sensitivity of said camera being sufficient to ensure that an acceptable image of said sources will be obtained for a given radiation-detection efficiency of said screen, said image of said area and said image of said sources being capable of superposition and being visible through use of means (40) for processing and display of said electric signals.
Device for the localization of radiation sources (2) liable to be found in a given area, said device comprising a pinhole chamber (4) whose walls form a shield against the radiation emanating from said sources, and means (20) for shuttering said pinhole chamber, said shuttering means being transparent to radiation from said sources, said device comprising, furthermore, in said pinhole chamber and opposite a pinhole (16), a luminescent screen (28) which is transparent in luminous range and which is capable of converting said radiation from said sources into luminous radiation, said shuttering means being, in addition, capable of preventing light from said area from reaching said screen, said device also comprising a camera (30) connected optically to said screen and capable of providing, in the form of electric signals, an image of said sources by means of luminous radiation which said camera receives from said screen, and an image of said area by means of aid light which said camera receives from said area through said screen when said shuttering means are open, sensitivity of said camera being sufficient to ensure that an acceptable image of said sources will be obtained for a given radiation-detection efficiency of said screen, said image of said area and said image of aid sources being capable of superposition and being visible through use of means (40) for processing and display of said electric signals, wherein said device is carried by a movable support (58) having a position which is known on a continuing basis and which thereby enables the taking of complementary photographs which are either symmetrical or are taken from precisely-determined, distant or close-up positions, and wherein said processing and display means (40) are provided to enable stereoscopic views, calculation of the distance from said sources (2) in relation to the photographic plane, and calculation of the intensity of the radiation in contact with said sources.
Dependencies are inferred from the claim text.