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4511927 |
Liquid coupling system for video projectors
A liquid coupling system for a video projector having a liquid in intimate contact with a CRT screen and the first lens element of the lens arrangement. The liquid is optically transparent and...
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4508967 |
Electronic optical apparatus comprising pyrolytic graphite elements
The electronic optical apparatus provided is such that the parts situated in the immediate vicinity of the beam, anode, screen placed inside the condenser block, screen formed from a tube and...
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4506374 |
Hybrid collimator
A hybrid collimator for tomographic imaging with a scintillation camera comprising a coded aperture plate and a parallel plate collimator. The code plate includes a plurality of lateral slits each...
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4495419 |
Radiation detection device
A radiation detection device is provided which comprises a box-like housing having a radiation permeable window located in one side. A scintillator is mounted in the housing; the scintillator...
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4484078 |
Medical apparatus
The apparatus comprises a first apparatus part and a second apparatus part which is disposed on and extends outward from the first part. The second part is movable with respect to the first part...
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4476385 |
Utilizing gamma cameras for uptake studies
A generally cylindrical radiation shielding adapter makes possible the efficient utilization of a gamma camera for uptake studies. Only a small portion of the camera's field of view is utilized,...
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4471226 |
Safety applicator for radiation
An improved safety housing for a radiation source used in polymerization of materials. The housing includes an interlock feature which prevents activation of the source unless the shield is placed...
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4467197 |
Apparatus for monitoring the acceleration energy of an electron accelerator
The apparatus contains a target exposed to a beam of accelerated electrons and an electron absorber positioned behind the target. The acceleration energy of the electron accelerator is monitored by...
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4467205 |
Highly-steady beam generating for charged particles
An electron beam generating system provides a high degree of steadiness of the beam current and comprises a heated cathode, an auxiliary electrode lying at a more negative potential than the...
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4465540 |
Method of manufacture of laminate radiation collimator
A collimator (21, 38, 38A) transmits intercepted X rays or the like along an array of predetermined spaced apart paths (22, 22A), which may be parallel or convergent, while absorbing intercepted...
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4463266 |
Neutron collimator
A neutron collimator with an adjustable irradiation field for an effective neutron radiation source includes a protective radiation casing; a frame surrounded by the casing; a plurality of...
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4463257 |
Rotatable support for selectively aligning a window with the channel of a probe
A mechanism is disclosed for selectively aligning one of two different radiation passing windows with the channel of a measuring device. The measuring device includes an elongated tubular probe...
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4460832 |
Attenuator for providing a test image from a radiation source
A nuclear radiation attenuator for providing a test image from a source of radiation is disclosed. The attenuator provides a test image including a plurality of discrete target images located in a...
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4447724 |
Apparatus for the chemical analysis of samples
An apparatus for the chemical analysis of a sample ejects neutral and charged particles from the sample by ion bombardment from a primary ion source. An electric diaphragm passes only the ejected...
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4446570 |
Collimator for a radiation detector and method of making same
A collimator for an Anger-type scintillation camera is disclosed in which a plurality of spaced pins of radiation transmitting material located within an internal cavity of a collimator housing...
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4445040 |
Shaping aperture for a charged particle forming system
A shaping aperture used in a charged particle forming system and provided with a slit for shaping the cross section of a charged beam emitted is disclosed in which at least two thin plates each...
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4445041 |
Electron beam blanker
An electron beam blanker for use in electron beam lithography systems is disclosed which is capable of providing exposure rates on the order of 300MHz at beam currents of approximately 600nA. A...
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4435838 |
Method and apparatus for tomographical imaging
The specification concerns a method and apparatus for tomographically imaging different selected planes of a three-dimensional object by detecting radiation through a coded aperture mask, storing...
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4419585 |
Variable angle slant hole collimator
A variable angle radiation collimator particularly for use in gamma-photon medical diagnostic systems in a gamma-photon camera system for radiological examination of human subjects. The collimator...
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4419577 |
Test pattern device for radiation detector and method of manufacture
A test pattern device for testing scintillation cameras has a radiation transparent body member with internal mercury-filled communicating passages that define a calibrated radiation opaque test...
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4408124 |
BRH Test pattern for gamma camera performance (an evaluator)
A test phantom for testing the performance of gamma cameras comprises a plate impervious to gamma rays having an orthogonal array of apertures defined therethrough. The apertures are uniform in...
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4395775 |
Optical devices utilizing multicapillary arrays
Optical devices utilizing multicapillary arrays such as beam splitters, calibrated beam attenuators, collimators, beam steering devices, beam modulators and phase shifters and lens.
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4393127 |
Structure with a silicon body having through openings
A structure for shaping or masking energetic radiation is described. The structure comprises a shallow silicon body having at least one through opening, and a metal silicide layer covering the...
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4389633 |
Coded aperture imaging with self-supporting uniformly redundant arrays
A self-supporting uniformly redundant array pattern for coded aperture imaging. The present invention utilizes holes which are an integer times smaller in each direction than holes in conventional...
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4384919 |
Method of making x-ray masks
An x-ray mask is made by forming a thin polyimide membrane on a silicon wafer substrate which is then back-etched to form a mask supporting ring of the substrate.
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4382184 |
Apparatus and method for simultaneously displaying relative displacements of a fluctuating biological object
X-ray apparatus and method for producing discrete images of a human organ in fluctuating motion, e.g., the heart and related vessels. Each image is derived at a selected time related to the cardiac...
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4377752 |
Scintillation camera radiation shielding
A radiation absorption shield assembly is disclosed for controlling the configuration of the radiation sensitive field of a radiation detecting camera. The shield assembly includes a first annular...
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4370556 |
Self-supporting mask, method for production as well as use of same
Mask for use in the treatment of substrates with an image-forming medium. The mask foil is thermally prestressed by the frame at the temperature of use. For this purpose, the material of the frame...
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4360797 |
Coded aperture imaging with uniformly redundant arrays
A system utilizing uniformly redundant arrays to image non-focusable radiation. The uniformly redundant array is used in conjunction with a balanced correlation technique to provide a system with...
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4359642 |
Collimator assembly for an electron accelerator
The collimator assembly comprises a collimator shielding block for blocking undesired X-rays and an insert piece inserted into the shielding block. The insert piece which is made of a material of...
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4352015 |
Anti-contamination diaphragm for an electron beam apparatus
In order to reduce object contamination during the examination or machining of the object in an electron beam apparatus, an anti-contamination diaphragm is provided in place of the customary...
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4347440 |
Filter arrangement for an x-ray apparatus
The filter arrangement for an X-ray apparatus contains an X-ray source for emitting a diverging beam of X-rays and a filter plate positioned in the beam of X-rays. The beam is symmetrical with...
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4342817 |
Mask for structuring surface areas, and method of making it
A mask for structuring surface areas and a method for manufacture thereof. The mask includes at least one metal layer with throughgoing apertures which define the mask pattern and a semiconductor...
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4333010 |
Dose calibrator linearity evaluation
A method and apparatus is disclosed for evaluating the linearity of response of a radioactivity dose measurement device over a range of radioactivity dose levels. In accordance with the method, a...
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4327966 |
Variable attenuator for laser radiation
The invention relates to a variable attenuator having two phase gratings (1 and 2) with rectangular grooves. In a first embodiment of the present invention the gratings are slidably mounted (10,...
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4324980 |
Electron exit window assembly for a linear accelerator
The electron exit window assembly contains a metal cover plate, a titanium insert piece and a titanium exit window. The cover plate covers the interior of the last cavity of the accelerator. It...
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4324979 |
Variable neutron collimator
A variable neutron collimator comprising at least three neutron absorbing blocks spaced from the position of a source of neutrons, each block having a surface remote from said position which is...
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4314158 |
Electron applicator for a linear accelerator
The electron applicator incorporates a stationary support tube and an insert tube. The support tube and the insert tube each have a first end portion and a second end portion. The first end portion...
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4310760 |
Optical fuze with improved range function
An optical proximity fuze is disclosed which has an improved response at se range with respect to a target. The fuze comprises a source of infrared radiation or visible light which is projected...
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4310215 |
Stable ultraviolet chemical filter
A liquid chemical filter for suppressing the heat producing portion of the solar spectrum emanating from a simulated solar source and composed of a mixture a hydrochloric acid, cobalt sulfate and...
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4298005 |
Radiation apparatus
A radiation apparatus for cosmetic, photobiological and/or photo chemical purposes containing at least one ultraviolet ray source and devices for operation for the production of the ignition...
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4288697 |
Laminate radiation collimator
A collimator (21, 38, 38A) transmits intercepted X rays or the like along an array of predetermined spaced apart paths (22, 22A), which may be parallel or convergent, while absorbing intercepted...
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4286168 |
Phantom simulation device for scintillation cameras
A phantom simulation imaging quality control device that effectively simulates one centimeter lesions, using steel ball bearings as gamma ray attenuators. The bearings are mounted in a synthetic...
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4283632 |
Electron beam aperture device
A 10 to 50 microns thick apertured foil is coated on at least one of its sides with a material having a thickness of about 10 to 100 microns. The atomic number of the coating material is such that...
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4270053 |
Electronic or ionic optical apparatus
Electronic or ionic optical apparatus having baffled wall areas wherein the individual baffles are constructed and positioned such that a maximum probability is created for particles departing from...
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4258427 |
Isotope analysis
The difference in concentration of a selected isotope in two materials is measured by directing gaseous beams of the materials towards the inlet of a mass spectrometer. A shutter alternately blocks...
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4254174 |
Supported membrane composite structure and its method of manufacture
A process for fabricating polyimide membrane x-ray lithography masks is described. Thin membrane of polyimide is formed by spinning polyamic acid on a glass substrate and polymerizing in situ. The...
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4250392 |
Bi-focal collimator
A collimator suitable for use in the creation of more than one miniaturized image of a radioactive concentration simultaneously by a radiation receiving and imaging device, said collimator having...
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4245217 |
Passive infrared alarm device
A passive infrared alarm device evaluates the changes in infrared radiation level of a monitored room or a monitored portion of a room for alarm purposes. In accordance with the invention, an...
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4222177 |
Apparatus for curing photo-developing inks
Method of drying photo developing ink printed on sheet material, said method comprising the steps of conveying the sheet material through a developing zone below a line source of ultra-violet...
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