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Match Document Document Title
7361908 Radiation dose estimation for radiochromic films based on measurements at multiple absorption peaks  
A method of estimating a radiation dose deposited on a radiochromic film based on absorption measurements at least at two wavelengths as well as devices implementing the estimation method. The...
7335899 Media for detection of X-ray exposure  
The invention relates to An X-ray exposure indicator device comprising a solid X-ray sensitive material that upon X-ray exposure undergoes a chromatic change, wherein the exposure indicator device...
7332728 Tamper-proof container  
A system and method for detecting radiation from a source in a container is disclosed. A continuous optical fiber path is disposed in a medium which is part of or associated with a container and...
7271393 UV radiation meter using visible light sensors  
An apparatus for quantifying irradiance has a first sensor having an output for providing a reference signal of irradiance within a first band, such as the visible light band. A filter and a second...
7242010 GaSe crystals for broadband terahertz wave detection  
A broad bandwidth detector to measure intensity information of terahertz (THz) frequency pulses. The detector includes: coupling optics coupled to a coherent optical source; a GaSe substrate...
7211783 Tamper-proof container  
A sheet includes an optical fiber extending across at least a portion of its surface to detect nuclear radiation. The sheet can line at least a portion of a shipping container or box. Radiation...
7166851 Semiconductor chip-based radiation detector  
The present invention is a self-contained device for measuring exposure to radiation which includes an integrated circuit device incorporating a polymer dispersed liquid crystal component that...
7098463 Three-dimensional dosimeter for penetrating radiation and method of use  
This invention relates to a method of forming a three-dimensional (3D) dosimetric map in a solid translucent or transparent polymer and to an article of manufacture comprising a polymer formulated...
7098444 Tamper proof container  
A liner sheet lines at least a portion of an interior surface of a shipping container or box and defines an optical path extending across at least a portion of the sheet, such that a breach of the...
7029819 Phosphor screen and imaging assembly  
A phosphor screen comprises an inorganic phosphor capable of absorbing X-rays and emitting electromagnetic radiation having a wavelength greater than 300 nm. The phosphor is disposed on a support...
6969860 PMMA-dosimeter  
A PMMA dosimeter for ionizing radiation shows not only a broad dose measurement range but also sensitivity less depending upon temperature. PMMA having a glass transition point Tg higher than 120°...
6894284 UV optical fluoride crystal elements for λ < 200nm laser lithography and methods therefor  
This invention provides a method of detecting sub-ppm lead impurity levels in a below 200 nm transmitting optical calcium flouride crystal. The method includes providing a below 200 nm wavelength...
6892948 Method of measuring dose of local radiation  
A method of measuring an absorbed dose of ionizing radiation using a measuring device that bears an integral identification mark, comprising the steps of: providing a support; disposing on the...
6818904 Ultraviolet radiation exposure sensor  
An ultraviolet radiation sensor that indicates a predetermined cumulative exposure to ultraviolet radiation is disclosed. The presently preferred sensor comprises a membrane, a base, an ultraviolet...
6815686 Method and apparatus for UV measurement  
A spherical actinometer integrates the omnidirectional radiant flux over time to obtain the radiant energy or fluence incident on the sphere utilizing a small spherical vessel containing a solution...
6783901 Photosensitive plastics films and information storage devices  
A plastics film is provided which is filled with a filler, has diffuse reflective properties and is coated with a coating containing a photosensitive organic compound. The film is useful in the...
6762403 Actinometric monitor for measuring irradiance in ultraviolet light reactors  
A tubular holder for an actinometric monitoring element for monitoring the irradiance of ultraviolet light within a liquid to be treated for microorganism control. The holder extends into the...
6750458 System and method for detecting radioactive contamination  
A method for detecting radioactive contamination is provided. The method includes placing a radiochromic material on a surface. It is then determined whether spotting of the radiochromic material...
6734440 Sunlight dosage indicator  
A multilayer sunlight dosage indicator comprising (a) an indicator layer comprising a sunlight-sensitive ink, wherein the ink undergoes a color change upon exposure to a known amount of sunlight;...
6730915 Position sensor for ultraviolet and deep ultraviolet beams  
A position sensor for ultraviolet beams includes a beam positioning member for directing an ultraviolet beam along a path; a downconverter member for converting the beam to visible light; a...
6683309 Radiation detector using polymer-dispersed liquid crystal cell  
Generally, and in one form, the present invention is a device for the measurement of radiant energy using a polymer dispersed liquid crystal cell. In another form, the present invention is a device...
6646273 Sun exposure and radiation dosimeter  
A radiation dosimeter is described which utilizes the conversion of iodide by impinging ultraviolet or other equal or greater energy radiation in the presence of a thiosulfate moderating agent and...
6633374 Dosimeter for assessing degree of illumination  
A dosimeter for evaluating the degree of illumination by a change in coloration includes a substrate on which is positioned a light-sensitive coloring substance, where the coloring substance is...
6596542 Flow-through chemical actinometer for ultraviolet disinfection reactors  
A chemical actinometer for determining the absolute level of exposure to ultraviolet light of a fluid to be treated for disinfection purposes. The actinometer includes a translucent sample cell...
6586751 Light source power tester  
A device for testing the light power output of an optical system comprises a thermochromic element, a body element optionally providing collimation or other means of reproducible positioning, and...
6584216 Method for standardizing the MR image intensity scale  
The present invention provides a method for standardizing MR image intensity scales by the use of post-processing intensity transformation techniques applied to routinely acquired images. The...
6569319 UV light intensity detector in a water treatment system  
The present invention is directed to a light monitoring system used in a water treatment system. The monitoring system includes a light pipe and a light intensity detector. The light pipe is...
6559455 Multiple ultraviolet sensitive patches on a single strip and a process for manufacturing thereof  
The present invention is an article of manufacture for use in alerting a person of exposure to an excessive amount of ultraviolet radiation. In one embodiment, the article of manufacture comprises...
6504161 Radiation indicator device  
A radiation indicator device for use in indicating exposure to ultraviolet-B radiation. The device includes a radiation sensitive mixture which is selectively responsive to ultraviolet radiation...
6485872 Method and apparatus for measuring the composition and other properties of thin films utilizing infrared radiation  
The composition, free carrier concentrations, and other properties of thin films and graded layers embedded in film stack structures are measured by the method of the invention, which is based upon...
6437346 Solar blind-UVC photochromic detector and method for calibration  
The present invention relates to an ultraviolet radiation detector in general and more specifically to a solar blind ultraviolet radiation detector; that is, a detector insensitive to the radiation...
6433270 Photoinduced molecular switches  
ORGANOMETALLIC COORDINATION complexes exhibiting two separate, stable forms are described. Conversion from one form to the other is intramolecular, reversible, light-activated (a molecular switch)...
6406914 Radiation exposure dose-history indicator  
The present composition for use in radiation exposure dose-history indicators comprises a radioactive ray-absorber and/or a radioactive ray-excited fluorescence-emitting agent, a color-developing...
6403962 Fibre optic X-ray camera  
A device for detecting X-radiation comprises a scintillator for converting X-radiation impinging thereon into light, a detecting device for detecting the light produced by the scintillator, and a...
6294792 UV dosimeter  
The subject of the invention is a UV dosimeter suitable for visual evaluation, which is consisted of a light-sensitive layer on a carrier and a cover layer. The thickness of the light-sensitive...
6285031 Radiation dosimetry method and associated apparatus  
A method and associated apparatus for monitoring exposure to radiation, with compensation for temperature variation of a sensor and variations in the amount of radiation sensitive material in a...
6268602 Method for manufacturing calibrated radiation dosimeter  
In a method for manufacturing a calibrated radiation dosimeter, a layer of radiation sensitive material is applied to a substrate, the radiation sensitive material having an optical density which...
6255659 Method and apparatus for passive optical dosimeter comprising caged dye molecules  
A new class of ultraviolet dosimeters is made possible by exposing caged dye molecules, which generate a dye molecule on exposure to ultraviolet radiation, to an exterior environment. Applications...
6249004 Inorganic crystal based composite material high dose dosimeter and method of using same  
The present invention is a composite material containing a mix of dosimeter material powder and a polymer powder wherein the polymer is transparent to the photons of wavelengths absorbed by the...
6232610 Dosimetry apparatus and method  
A dosimeter analysis system provides the capability to easily handle the radiochromic pieces of film which are commonly employed as dosimeters and make an accurate analysis of the amount of...
6218673 Optical scanning tomography for three-dimensional dosimetry and imaging of energy fields  
An optical scanner gives three dimensional dosimetric data by scanning, with at least one light beam, a translucent medium exhibiting optical properties which change upon receipt of radiant energy...
6198108 Dosimeter device and method of producing same  
A dosimeter device that is fabricated from a flat member separated into panels along fold lines. In an illustrated embodiment, a first panel has two attenuators thereon, a first attenuator formed...
6130435 Apparatus and method for measuring the effectiveness of a sunscreen composition  
An apparatus for measuring the effectiveness of a sunscreen composition applied to protect an epidermis from harmful exposure to ultraviolet light, the epidermis having a texture and an absorbent...
6114707 Label for certifying an inspection by penetrating radiation  
A method for checking whether an article has been inspected by penetrating radiation is described, wherein the article is provided with a heat stimulable storage phosphor whereby penetrating...
6054256 Method and apparatus for indicating ultraviolet light exposure  
Applications of photoerasable colorant composition include photoerasable price markings for pricing goods, documents such as gaming tickets for securely communicating concealed information,...
6046455 Integrating ultraviolet exposure detection devices  
Diyne monomers are used as photochromic agents in devices or formulations. The devices and formulations may be applied to body parts for semi-pemanent attachment at various sites to allow for...
6015621 Ultraviolet dosimeter film  
An ultraviolet-sensitive dosimeter material comprises at least one diazonium compound featuring absorption in the ultraviolet wavelength range, and a binder. The diazonium compound is preferably...
5990485 Label for certifying an inspection by penetrating radiation  
A label is provided, comprising a means wherein penetrating radiation leaves a human- or machine-readable semi-permanent or permanent mark. Preferably said means is a storage phosphor. A method for...
5986273 Ultraviolet radiation sensor  
An ultraviolet radiation sensor that may be worn on the skin to indicate exposure of the skin to ultraviolet radiation. The sensor comprises a transparent semi-permeable membrane having an upper...
5914197 Ultraviolet active wristband  
The present invention teaches an ultraviolet active wristband. The ultraviolet active wristband is made of the same materials as any wristband already in the market. However, the present wristband...
Matches 1 - 50 out of 232 1 2 3 4 5 >