An air ionizing device that minimizes interference with existing room-air flow and lighting, comprising a narrow enclosed housing of an insulating material having intake openings and vent openings. Disposed inside the housing is a fan that takes room-air axially through the openings in the housing, and disperses the air radially. The room-air collects inside the housing until the capacity is reached, and then flows downwardly in a laminar fashion sufficiently near a plurality of electrodes to be...

The disclosed dosimeter system includes a dosimeter and a reader, the dosimeter including a protective outer container and a support for elements sensitive to radiation, the reader including a frame and a mechanism for receiving the dosimeter. The frame has a cover for supporting measurement devices and a source, and a base for guiding the mechanism which receives the dosimeter. The dosimeter support includes a casing having a movable body for the sensitive elements. The mechanism of the reader ...

The device has at least one planar detector (2.sub.a, 2.sub.b) able to transform a radiation (8) into electrical charges and a common electrode (12) on an input face and a mosaic of point electrodes (14) and metal bands (34.sub.a -34.sub.e) on an output face, several planar integrated circuit chips (10a, 10b) facing the input face of the detector and having a mosaic of reading circuits (16) and metal bands (30a, 30d) for connecting the circuits to external supply, control and processing devices ...

The tendency of polymers which are normally transparent after molding to undergo yellowing upon exposure to ionizing radiation is reduced by blending them with another polymer that has the effect of improving the ionizing radiation resistance over and above a mere dilution effect. The blends are moldable into medical products that can be sterilized repeatedly with little or no yellowing.

A gas detector for ionizing radiation particularly of the .beta. type leading to the emission of energetic electrons by a surface adapted to provide for mono-dimensional or two-dimensional detection. The gas detector includes a sealed enclosure containing an ionizing electron generating gas and at least two grids at different electric potentials, one of them constituting the anode. One of the grids at least is formed in a first direction by a plurality of electrically insulating wires serving as...

A method to reduce high breakout and sustaining forces between slidable surfaces includes applying a film of lubricant to at least one of the surfaces and subjecting the lubricant and surface to an ionizing plasma. The invention includes articles having slidable surfaces of low breakout and sustaining forces.

A method to reduce high breakout and sustaining forces between slidable surfaces includes applying a film of lubricant to at least one of the surfaces and subjecting the lubricant and surface to an ionizing plasma. The invention includes articles having slidable surfaces of low breakout and sustaining forces.

An improved air ionizing apparatus that may be used as part of an air filtering system. The apparatus consists of an air passageway with at least one negatively charged ionizing member therein and a conductive strip, positively charged with respect to the ionizing member extending around at least a major portion of the interior periphery of the outlet of the passageway. The conductive strip attracts the negative ions, causing them to disperse as air directed down the passageway propels them towa...

There is disclosed a dosimeter to be used in connection with slit radiography and comprised of a gas filled chamber with one side wall provided with a plurality of X-ray transparent strip-like electrodes extending substantially transversely to a longitudinal direction of the oblong-shaped casing and another side wall provided with wire electrodes extending parallel to such longitudinal direction of the oblong-shaped casing wherein each of the strip-like electrodes generates a signal representati...

The invention is directed to a dosimeter for pulsed beams of high-energy, ionizing radiation. The dosimeter employs the radiative recombination of radiation-induced excitation in a material. The dose is proportional to this fluorescence signal at any time. To be useful, this fluorescence should have a lifetime about an order of magnitude greater than the duration of the radiation pulse, so as to make the excitation to occur instantaneously. In addition, the material should be relatively insensit...