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| Number | Title | Issue Date |
| 5753920 | Integrated charge monitor An integrated charge monitor for measuring a level of cumulative radiation exposure includes semiconductor devices having characteristics that change with a cumulative level of radiation to which the devices are exposed, different amounts of radiation shi... | 05/19/1998 |
| 5693954 | Verification of the performance of photostimulable phosphor read out system A radiographic image read out system having on-line performance verification. A number of parameters to be used in a test program are stored together with (a) limiting value(s) for (a) characteristic value(s) resulting from application of the test program... | 12/02/1997 |
| 5686732 | X-ray apparatus comprising a photoconductor and a charging device An apparatus, including a photoconductor (1) for converting X-rays into a charge pattern, and a controllable charging device (3, 9) for charging the surface of the photoconductor to a defined potential. The service life of the charging device is prolonged... | 11/11/1997 |
| 5672874 | Infrared oil-concentration meter An oil concentration meter includes a sample cell for receiving an oil sample that can be irradiated with infrared rays from a light source. A first interference filter having a design wavelength of 3.4 μm is positioned before a measuring detector, while... | 09/30/1997 |
| 5668375 | Fast scan reset for a large area x-ray detector A large area solid state x-ray detector employs a plurality of cells arranged in rows and columns composed of photodiodes that are charged, exposed to x-rays which deplete their charge in proportion to the exposure, and then recharged to determine the amo... | 09/16/1997 |
| 5661310 | Radiation dose mapping systems and methods A dose distribution analyzer (20) and methods for providing a radiation dose map indicating energy of a spacially variable radiation pattern beamed onto a dose map radiation dosimeter (10). The radiation dosimeter (10) is exposed to a proposed spacially v... | 08/26/1997 |
| 5646409 | Method of suppressing extraneous radiation effects in radioactive measuring methods The instant invention relates to a method to compensate for extraneous radiation caused by the effects of intermittent active radiation sources (not effects due to cosmic or terrestrial radiation) that can cause errors in radiation measured values. For th... | 07/08/1997 |
| 5629524 | High speed crystallography detector A device for the collection, digitization and analysis of synchrotron x-ray crystallographic data using an area detector which detects x-ray photons directly on arrays of solid state detectors and stores the information on capacitors located on readout un... | 05/13/1997 |
| 5623147 | Radiation-sensitive detector A device for detecting infrared radiation which comprises a sensitive arm which, over at least a portion of its length, consists of bimetal. One end of said arm is joined to a membrane.... | 04/22/1997 |
| 5619038 | Method and apparatus for determining the polymer content of a cellulose/polymer mixture and associated calibration A method and apparatus for determining and adjusting the polymer content of a cellulose/polymer blend prior to use in a paper-making machine. The method for evaluating a desired polymer contained in a cellulose/polymer mixture comprising the steps of acqu... | 04/08/1997 |
| 5612540 | Optical method for the detection of cervical neoplasias using fluorescence spectroscopy A method for detecting tissue abnormality, particularly precancerous cervical tissue, through fluorescence spectroscopy is disclosed. In vitro fluorescence measurements over a variety of different fluorescence spectra are used to screen tissue samples. Us... | 03/18/1997 |
| 5604346 | Arrangement for recording an IR-image An arrangement for recording an IR image of an object. The arrangement has a focal plane array (FPA) of IR detectors and an optic which images the object on the focal plane IR detector array. At least one temperature reference is arranged in the beam path... | 02/18/1997 |
| 5602393 | Microbolometer detector element with enhanced sensitivity A microbolometer detector element includes an optically absorptive material structure that absorbs a portion of incident radiation, and has a plurality of openings that diffract other portions of the incident radiation. The absorptive structure has an ele... | 02/11/1997 |
| 5602391 | Quincunx sampling grid for staring array An imaging device (10) includes an array (18) of picture elements (16) or pixels, each of which is responsive to incident radiant energy to provide an output signal. The array (18) consists of pixels (16) in adjacent horizontal rows, each row having a cer... | 02/11/1997 |
| 5600142 | Measurement of vaporized hydrogen peroxide On line and essentially continuous measurements of hydrogen peroxide vapor in the presence of water vapor can be made using near infrared (NIR) spectroscopy using fiber optic cables to transmit infrared radiation between, e.g, a sterilization chamber and ... | 02/04/1997 |
| 5598005 | Non-destructive method for determining the extent of cure of a polymerizing material and the solidification of a thermoplastic polymer based on wavelength shift of fluroescence The change in the peak fluorescence wavelength of a small amount of a fluorescent compound, i.e., a fluorophore, which has been dissolved in a polymerizing material or a thermoplastic polymer is used to determine the extent of cure or solidification, resp... | 01/28/1997 |
| 5596191 | Method and apparatus for epithermal neutron porosity measurement corrected for tool standoff and formation lithology A method of determining porosity of an earth formation penetrated by a wellbore including irradiating the earth formation with bursts of neutrons from a source in the wellbore and counting epithermal neutrons at a first detector axially spaced from the so... | 01/21/1997 |
| 5594253 | Hybrid luminescent device for imaging of ionizing and penetrating radiation A hybrid luminescent device for converting ionizing and penetrating radiation energy such as x-rays, gamma rays, neutrons, ions, electrons, and the like into visible light for imaging applications. The hybrid luminescent device includes a phosphor screen ... | 01/14/1997 |
| 5591975 | Optical sensing apparatus for remotely measuring exhaust gas composition of moving motor vehicles A light source radiates an infrared beam that passes through a chopper, a calibration cell and the exhaust plume of a motor vehicle passing in front of the source. A photosensor assembly includes a plurality of photodetectors which are spaced closely adja... | 01/07/1997 |
| 5589688 | Infrared radiation sensor An infrared radiation sensor of high accuracy is provided which is suitable for a thermometer to be used for effecting noncontacting determination of a temperature of a subject under test, particularly a temperature of a tympanic membrane, by utilizing th... | 12/31/1996 |
| 5585636 | Characteristic absorption Apparatus and methods for monitoring characteristic absorption of a substance in a mixture include applying radiation pulses with a wavelength characteristic of the substance to be measured and a wavelength uncharacteristic of the substance to a measuring... | 12/17/1996 |
| 5585633 | Terrestrial sensor device for satellite or the like The terrestrial sensor device is suitable for use on a satellite or spacecraft. It has a lens for forming an image of the Earth in a focal plane, and a sensor placed in the focal plane. The sensor is constituted by a two-dimensional array of pyroelectric ... | 12/17/1996 |
| 5583345 | Method of and apparatus for picking up and displaying a stereoscopic image from an object permeated with radioactive rays A method and apparatus is provided for picking up and displaying a stereoscopic image from an object permeated with radioactive rays. In accordance with the method, a plurality of radioactive rays which are non-parallel with each other are directed substa... | 12/10/1996 |
| 5578833 | Analyzer An analyzer capable of detecting a light element, such as Na, capable of evaluating a sample having an uneven surface, such as a pattern-carrying wafer without destroying and damaging the same. The analyzer is of simple construction, is simple in operatio... | 11/26/1996 |
| 5578832 | Method and apparatus for imaging a sample on a device The present invention provides methods and systems for detecting a labeled marker on a sample located on a support. The imaging system comprises a body for immobilizing the support, an excitation radiation source and excitation optics to generate and dire... | 11/26/1996 |
| 5578829 | On-line monitor for moisture contamination in HCL gas and copper contamination in NH4 OH solutions A light beam is passed through a tube containing a material being monitored and a contaminant wherein the light is absorbed by the contaminant or some form of the contaminant to the exclusion of the material being monitored. Since the amount of light pass... | 11/26/1996 |
| 5578830 | Neutron dose equivalent meter A neutron dose equivalent detector for measuring neutron dose capable of accurately responding to neutron energies according to published fluence to dose curves. The neutron dose equivalent meter has an inner sphere of polyethylene, with a middle shell ov... | 11/26/1996 |
| 5576541 | Apparatus for measuring the basis weight An apparatus for measuring the basis weight of a web-shaped material under test comprises a radioactive ଲ radiation source on one side of the material under test and a ଲ radiation detector on the other side of the material under test. For focu... | 11/19/1996 |
| 5576545 | Line source for attenuation correction in nuclear medicine studies and apparatus and methods for using the source In a system which corrects for attenuation artifacts in a SPECT study, a line source is parallel to the axis of rotation of the scintillation camera detector(s) and is scanned in a plane which is parallel to the detector. Advantageously, the line source i... | 11/19/1996 |
| 5574287 | Response excursion reduction method for radiant flux sensors A non-zero feedback radiant flux reduces a radiant flux sensor's primary response excursion by keeping the total radiant flux on the sensor virtually constant. An increase in signal radiant flux is countered by a virtually equal decrease in feedback radia... | 11/12/1996 |
| 5574281 | Sensing device for incorporating thermally bistable material A device capable of storing information, comprising a new sulfide alloy embedded in a substrate, the alloy exhibiting a metal-semiconductor phase transition with hysteresis as a function of temperature and a positive temperature coefficient. In one embodi... | 11/12/1996 |
| 5572021 | Methods of detecting the locations of well treating fluids Methods are provided for detecting the surface and/or subterranean locations of well treating fluids after the treating fluids have been introduced into wells and used for performing treatments therein. The methods of determining the subterranean location... | 11/05/1996 |
| 5569914 | Method for measuring height of fill in a production tubing/casing annulus The location in a wellbore of the top of a quantity of fill material which is sufficient to restrict flow in a tubing/casing annulus at a location deep in a well is determined by dropping a radioactive source through the annulus so that it falls to the to... | 10/29/1996 |
| 5567939 | Infrared scanner and stand assembly An infrared scanner and stand assembly including a tripod, a scanner holder connected to the head of the tripod by a ball and socket joint to hold an infrared scanner for permitting the infrared scanner to be adjusted horizontally as well as vertically th... | 10/22/1996 |
| 5567946 | Deconnable self-reading pocket dosimeter containment with self-contained light A container for a self-reading pocket dosimeter includes a transparent tube for receiving the self-reading pocket dosimeter, a light source mounted at one end of the transparent tube, and an eyepiece mounted on an opposite end of the transparent tube for ... | 10/22/1996 |
| 5567942 | Infrared array sensor system An infrared array sensor system capable of sensing the position and orientation of a human body without using any expensive sensor elements required in conventional infrared array sensors and having functions enabling it to an air conditioner by a relativ... | 10/22/1996 |
| 5565682 | Electrical contact to the common electrode of an infrared detector array A system for infrared sensing has thermally sensitive picture elements within a substrate; bias contact areas within the substrate and around a periphery of the thermally sensitive picture elements; a common electrode on a front side of the thermally sens... | 10/15/1996 |
| 5565683 | Heat source detector A heat source detector includes an infrared sensor 1 wherein plural infrared ray sensing elements 7 on which an infrared image is formed by an infrared lens 10 are arranged into an array form; and an infrared analyzer 2 which analyzes a detection signal d... | 10/15/1996 |
| 5565678 | Radiographic image quality assessment utilizing a stepped calibration target A system and method for performing a rapid, automatic, quantitative assessment of the image quality of a radiographic image is disclosed. The present invention utilizes a stepped calibration target made of differentially attenuating disks that is exposed ... | 10/15/1996 |
| 5563409 | Crosstalk measurement system and technique An automated test system and method for infrared focal plane detector arr which utilize X-Y positioning of a focused laser spot scanning individual detector array elements Detector element outputs are processed for the entire focal plane array resulting ... | 10/08/1996 |
