Abstract: There is disclosed a multiple gaseous discharge display/memory panel having an electrical memory and capable of producing a visual display, the panel being characterized by an ionizable gaseous medium in a gas chamber formed by a pair of opposed dielectric material charge storage members which are respectively backed by an array of conductor (electrode) members, the conductor array behind each dielectric material member being appropriately oriented with respect to the conductor array behind the opposing dielectric material member so as to define a plurality of discrete discharge volumes constituting a discharge unit, the surface of at least one dielectric material member comprising at least one inorganic non-oxide lead compound, said compound being present in an amount sufficient to improve the operating characteristics of the panel, especially more uniform and/or lower panel operating voltages.

Abstract: An electronic sampling head comprising a housing having a path for impinging radiation, a photoemissive element positioned across said path, photoelectron ejection means positioned in proximity to said photoemissive element, means for applying ultrashort sampling potential differences between said photoemissive element and said photoelectron ejection means for accelerating photoelectrons emitted by said photoemissive element in response to said incident radiation, and means for detecting said photoelectrons all resulting in the capability of detecting high-speed radiation phenomena with waveform fidelity.

Abstract: Apparatus for detecting the presence of extraneous matter and/or cracks in translucent containers and in particular translucent containers when the colour density and/or wall thickness of the translucent containers vary significantly from container to container which includes a vertical spot beam of light which is projected through the container to generate an electrical inspection signal corresponding to the amount of light passing through the container. This electrical inspection signal is compared with a predetermined electrical acceptance signal, which is a function of the vertical position of the spot beam of light relative to the container. There is an ambient light correction and for colored containers either the inspection signal or the acceptance signal is altered during the inspection process to take account of the colored density and/or wall thickness.

Abstract: An electron scanning apparatus is capable of two-dimensional scanning of a specimen with a primary electron beam and also capable of radiating the primary electron beam in spot on the specimen. While moving the specimen in a straight line, the two-dimensional scanning with the primary electron beam is selectively alternated with the spot radiation with the primary electron beam, thus making it possible to identify the point of analysis on the specimen in the course of linear analysis of the specimen.

Abstract: A radiological screen for placing on a patient's skin comprising a flat jacket containing a fine particulate filler and a settable resin binder, the fine particulate filler being of a material which absorbs medical radiation, and the jacket including a window to transmit such radiation through the flat jacket.

Abstract: Method and apparatus for detection of mercury vapor present in environmental atmosphere for the purpose of detecting the degree of environmental mercury pollution that might be present. Environmental air is passed through a bed of fibrous material such as glass wool, the fibers of which are coated with a noble metal, such as silver, capable of extracting mercury vapor from the environmental air. The bed of fibrous material may be placed within a heating chamber where sufficient heat is applied to drive off the collected mercury and a clean and perhaps inert gasiform fluid, such as clean air, nitrogen, argon, etc. is passed through the heating chamber to serve as a carrier for mercury vapor that is driven off of the bed of fibrous material. The mercury vapor laden carrier gas is then cooled and the mercury vapor present in the gas is collected by passing the gas through a screen of nylon mesh that is also coated with the noble metal.

Abstract: A sequence of separate radiographs are made by indexing a radiation source along a known path relative to the object under study. Thus, each radiograph contains information from a different perspective. A holographically-recorded image is then made from each radiographic perspective by exact re-tracing of the rays through each radiographic perspective such that the re-tracing duplicates the geometry under which it was originally prepared. The holographically-stored images are simultaneously illuminated with the conjugate of the reference beam used in the original recordings. The result is the generation of a three-dimensional real image of the object such that a light-sensitive device can be moved to view the real image along any desired surface with the optical information in all other surfaces greatly suppressed.

Abstract: A beam of spectral energy is directed onto a weld spot and the integrity of the weld is measured by the strength of the reflected beam or of the transmitted beam, which may also involve a function of the refractive characteristic effect of the weld spot on the incident beam.

Abstract: A ball universal joint for wave guides comprising a package of plates, each of which having therein a rectangular cross-section hole a quarter-wave length, the plates being compressed on one another by interposing balls separating and restraining the plates and being rotably carried in a rigid framework. Intermediate these plates, a rigid body is positioned and is fast with the framework and provides a curved intermediate step, in which a curved rectangular cross-section hole of average half-wave length is formed. The two end faces of the rigid body lie on planes forming a 90.degree. angle therebetween, so that the axes of the end plates in the plate package form a 90.degree. angle therebetween.

Abstract: In an X-ray generator, different starting powers may be selected and corresponding to each starting power a different reduction instant is measured at which time resistors are inserted into the high-voltage and the filament circuits to reduce power. Different starting powers may be associated with different organ exposures in which case the system has advantages similar to those where the load is reduced in several steps without the high cost.

Abstract: During the process of manufacturing tires, vulcanized tires are classified by the utilization of radiations into the white tire having a white rubber compound layer, or a white ribbon, and the black tire having no such white ribbon, while those tires are classified according to the external dimensions such as an inside diameter. More specifically, a radiation source provided on the side of one wallside of a tire emits radiations to the tire at a predetermined angle of inclination, while a radiation detector provided on the side of the other wallside of the tire detects the intensity of radiations which have passed through the tire, whereby the classification of tires is carried out according to the comparison of two outputs which the radiation detector produces at two predetermined relative positions of the tire and the radiation source.

Abstract: At least two coil spring rotational mode reverberation lines having transducers at two remote ends thereof are coupled in cascade circuit by means of intermediate long wire transverse mode line structure. Thus, two (or more) coils may be located side by side with a long thin wire coupling opposite ends of the coils, thereby considerably reducing packaging size of long time delay reverberation lines, and producing coupling means that is less susceptible to physical shock. The wire comprises universal type coupling means for coupling together coils of different characteristics.

Abstract: A charging device for an electrophotographic apparatus wherein at least a first portion of a control plate is movable relative to a corona generating device. A support member having a photoconductive insulating layer is maintained in spaced relationship relative to the corona generating device. A suitable mechanism is operably associated with the control plate for varying the position of at least the first portion of the control plate relative to the corona generating device to thereby adjust the strength of the corona discharge from the portion of the corona generating device generally adjacent the first portion of the control plate.

Abstract: Apparatus for examining a body by means of penetrating radiation includes a source of the radiation, disposed to irradiate the body, and detector means, responsive to the radiation, disposed to receive radiation emergent from the body. The source and detector means are scanned relative to the body, the scanning motion including a rotation of the source and detector means around the body. An attenuating mass is disposed between the source and detector means and rotates therewith so as to present substantially the same profile to the radiation when the source and detector means assume different angular positions with respect to the body.

Abstract: A novel apparatus for radiographic examination purposes comprises an x-ray source emitting a flat beam. Detectors are arranged in the plane of the beam in order each to pick up part of the beam. To avoid the Compton effect, each detector is associated with it an auxiliary detector which only receives the rays emitted by the Compton effect. An electrical circuit forms a predetermined linear combination of the signals respectively picked up by each detector and the associated auxiliary detector, this in order to prevent the errors which are due to the Compton effect when the beam passes through the body being analysed.

Abstract: The invention concerns a process for the two-sided exposure of a semiconductor or substrate plate, especially exposure of a wafer, through exposure masks which are arranged in plane parallel, parallel and rotational alignment to either side of a semiconductor plate. The invention further concerns an apparatus for parallel and rotational alignment to either side of a semiconductor plate. The invention further concerns an apparatus for parallel and rotational alignment of a semiconductor or substrate plate, especially alignment of a wafer, in relation to two exposure masks, operating on either of the two surfaces of the semiconductor or substrate plate, for the purpose of a two-sided exposure, in accord with the process established by the invention.

Abstract: In an X-ray collimator including both "near" and "far" shutter mechanisms, the improvement comprising locating two pairs of independently movable near shutters within an outwardly extending lead cone. The cone is positioned against the X-ray generator tube window and as a result the near shutters are in closer proximity to the focal spot of a rotating anode disc of an X-ray tube than heretofore possible. The cone contains an aperture which defines the maximum size of the primary beam passing through the shutter mechanisms; however, the body of the cone and the closer positioning of the near shutters to the focal spot effectively controls and restricts secondary radiation which is emitted at angles different from the primary beam passing through the collimator.

Abstract: A multicavity waveguide filter in which each of the cavities has a pair of orthogonally related modes of propagation. The cavities are positioned side by side with the long axis of each of the cavities being aligned parallel to each other. The cavities are tuned by tuning plungers which are simultaneously moved to predetermined positions within the cavity.

Abstract: A collimator kit having a number of parts which may be assembled in various combinations to provide focusing collimators with different performance characteristics for radioisotope imaging apparatus.

Abstract: A device for scanning optical images wherein light intensity of a scanned image line is converted to a pulse width modulation rather than a charge profile. A photo transistor row is connected to an inverter chain, and OR-gates have outputs which are fed to a common read line while the input signal of each OR-gate is tapped over coordinated partial rows of the photo transistor row.