With Optically-stimulated Phosphor Patents (Class 250/484.4)
-
Patent number: 7897938Abstract: Comprising a first step of supporting a substrate formed with a scintillator on at least three protrusions of a target-support element disposed on a vapor deposition table so as to keep a distance from said vapor deposition table; a second step of introducing said vapor deposition table having said substrate supported by said target-support element into a vapor deposition chamber of a CVD apparatus; and a third step of depositing an organic film by CVD method onto all surfaces of said substrate, provided with said scintillator, introduced into said vapor deposition chamber.Type: GrantFiled: December 17, 2009Date of Patent: March 1, 2011Assignee: Hamamatsu Photonics K.K.Inventors: Takuya Homme, Toshio Takabayashi, Hiroto Sato
-
Patent number: 7893405Abstract: A radiation detection apparatus includes an optical detector disposed on a substrate and having a plurality of photoelectric conversion elements which convert light into an electrical signal, and a scintillator layer disposed on the optical detector and having a columnar crystal structure which converts radiation into light, wherein the concentration of an activator of the scintillator layer is higher at the radiation-incident side opposite the optical detector and is lower at the optical detector side. The scintillator panel includes the substrate and the scintillator layer disposed on the substrate, wherein the concentration of the activator of the scintillator layer is higher at the radiation-incident side and is lower at the light-emission side.Type: GrantFiled: April 17, 2009Date of Patent: February 22, 2011Assignee: Canon Kabushiki KaishaInventors: Kazumi Nagano, Yoshihiro Ogawa, Satoshi Okada, Keiichi Nomura
-
Publication number: 20100307587Abstract: The present invention provides a method for controlling an optical property of a wavelength conversion sheet. The method is a method for controlling an optical property of a wavelength conversion sheet that contains a transparent resin and a phosphor and achieves wavelength conversion by absorbing light in a specific wavelength range other than a target wavelength range and emitting light in a target wavelength range, wherein the phosphor contains a phosphor having a perylene skeleton, and a stokes shift of the wavelength conversion sheet is controlled by adjusting a concentration of the phosphor having a perylene skeleton to the transparent resin in a range of 0.5% to 3.5% by weight.Type: ApplicationFiled: June 8, 2010Publication date: December 9, 2010Applicant: NITTO DENKO CORPORATIONInventors: Michie Sakamoto, Megumu Nagasawa
-
Patent number: 7834330Abstract: There is provided a radiation image conversion panel having strong resistance to physical impact, and in which enhanced sharpness and adhesion are balanced, especially, enhanced adhesion of a photostimulable phosphor layer onto a support is achieved, and a preparation method of the radiation image conversion panel. The radiation image conversion panel comprising on a support a sublayer and at least one photostimulable phosphor layer in this order from the support, featured in that the photostimulable phosphor layer is formed by a gas phase method and has a thickness of not less than 50 ?m, and the sublayer comprises a thermoplastic resin and the thickness of the central portion in an image area of the sublayer is greater than that of the peripheral portion of the image area.Type: GrantFiled: March 22, 2006Date of Patent: November 16, 2010Assignee: Konica Minolta Medical & Graphic, Inc.Inventors: Takafumi Yanagita, Tadashi Arimoto
-
Patent number: 7829179Abstract: A photoluminescent sheet is disclosed. In one embodiment, the photoluminescent sheet has a phosphor, absorbs some light, of at least one wavelength, of light emitted from a light source, emits particular light of a wavelength different from the wavelength of the emitted light and allows the remaining of the light emitted from the light source to penetrates the photoluminescent sheet, whereas the photoluminescent sheet comprises at least a surface comprising a wet preventing layer for minimizing a contracting area between the photoluminescent sheet and another sheet. According to at least one embodiment, wet is not generated on a screen even though the photoluminescent sheet is connected to other sheets.Type: GrantFiled: March 12, 2007Date of Patent: November 9, 2010Assignee: LG Innotek Co., Ltd.Inventors: Choong-Yong Sohn, Young-Wook Ko
-
Publication number: 20100270462Abstract: The invention provides methods and apparatus for detecting radiation including x-ray photon (including gamma ray photon) and particle radiation for radiographic imaging (including conventional CT and radiation therapy portal and CT), nuclear medicine, material composition analysis, container inspection, mine detection, remediation, high energy physics, and astronomy. This invention provides novel face-on, edge-on, edge-on sub-aperture resolution (SAR), and face-on SAR scintillator detectors, designs and systems for enhanced slit and slot scan radiographic imaging suitable for medical, industrial, Homeland Security, and scientific applications. Some of these detector designs are readily extended for use as area detectors, including cross-coupled arrays, gas detectors, and Compton gamma cameras. Energy integration, photon counting, and limited energy resolution readout capabilities are described.Type: ApplicationFiled: April 6, 2009Publication date: October 28, 2010Inventors: Robert Sigurd Nelson, William Bert Nelson
-
Patent number: 7800088Abstract: A method of identifying a source of a substance incorporating one or more luminescent markers comprises illuminating the substance to stimulate emission from at least one of the luminescent markers. A luminescent signature is generated from the detected luminescent emission. The source of the substance is identified based on a match between the generated luminescent signature and a pre-defined luminescent signature.Type: GrantFiled: November 2, 2005Date of Patent: September 21, 2010Assignee: NCR CorporationInventors: Gary A. Ross, Graham I. Johnson, Barrie Clark, Simon J. Forrest
-
Patent number: 7800078Abstract: A printed circuit device used in conjunction with inductive power and data transmission applications is formed substantially of ferrite material, with an inductive coil conductor formed around the substrate to increase the electromagnetic properties of the coil for both power and data transmission functions, thereby eliminating the need for a discrete ferrite core wire-wound coil to be connected to the circuit device.Type: GrantFiled: April 15, 2004Date of Patent: September 21, 2010Assignee: Sensors for Medicine and Science, Inc.Inventors: Arthur E. Colvin, Jr., John S. Gerig, Paul Samuel Zerwekh, Jeffrey C. Lesho, Benjamin N. McLeod
-
Patent number: 7781747Abstract: The present invention relates to a novel dosimeter filter and a dosimeter incorporating the same. More specifically, one embodiment of the invention relates to a very thin dosimetry device generally comprising: an optically stimulated luminescent material OSLM (i.e. aluminum oxide) sandwiched between at least two novel CEEC filters, wherein each CEEC filter comprises two layers of filtering material: an electronic equilibrium filter layer and an energy compensation filter layer wherein the electronic equilibrium filters comprise steel and wherein the energy compensation filters comprise Tantalum.Type: GrantFiled: August 29, 2008Date of Patent: August 24, 2010Assignee: Dept. of Homeland SecurityInventors: Gladys Klemic, Paul Bailey, Cecilia Breheny
-
Patent number: 7781746Abstract: A carrier for transporting a section of flexible phosphor imaging medium through a scanner has a flexible support having a front surface and a back surface, at least one releasable retaining element coupled to the flexible support for holding a first surface of the section of flexible phosphor imaging medium against the front surface of the flexible support, and a flexible frame extending at least partially along the perimeter of the flexible support and having a thickness above the front surface of the flexible support that is substantially the same as the thickness of the section of flexible phosphor imaging medium that is held against the front surface.Type: GrantFiled: March 27, 2009Date of Patent: August 24, 2010Assignee: Carestream Health, Inc.Inventors: Michael K. Rogers, Anthony Dirisio
-
Publication number: 20100207031Abstract: A scintillator arrangement for detecting X-ray radiation includes a plurality of pixels separated from one another by reflectors and made of a scintillator ceramic, doped in particular by cerium, for converting the X-ray radiation into visible light. In at least one embodiment, the reflectors are designed for absorbing light with a wavelength range which corresponds to a selected emission band of the scintillator ceramic. Thus, the concentration of cerium in the scintillator ceramic can be reduced and this leads to an increased light yield.Type: ApplicationFiled: February 16, 2010Publication date: August 19, 2010Inventor: Jürgen Leppert
-
Publication number: 20100193690Abstract: A scintillation device includes a scintillator body and a plurality of boot sections spaced apart from each other by at least one gap. Each of the plurality of boot sections substantially surrounds a portion of the scintillator body and wherein the plurality of boot sections are characterized by a total length that is less than a length of the scintillator body.Type: ApplicationFiled: January 29, 2010Publication date: August 5, 2010Applicant: Saint-Gobain Ceramics & Plastics, Inc.Inventor: Jeffrey D. Hunt
-
Patent number: 7767981Abstract: An image capturing system includes a cassette having a radiation detector, an image memory, and a cassette controller, an image capturing apparatus, a display device, and a host computer. The cassette controller comprises a capacity value transmitter for transmitting a capacity value of the radiation image information to the host computer before transmission process, and an image transmitter for transmitting the radiation image information. The host computer comprises an indicator controller for controlling the display device to display an indicator representing the capacity value received from the cassette as the upper limit, and a bar controller for controlling the display device to display a bar moving toward the indicator and having a length corresponding to the received capacity value of the radiation image information while the radiation image information is being received.Type: GrantFiled: July 30, 2008Date of Patent: August 3, 2010Assignee: Fujifilm CorporationInventors: Takeshi Kuwabara, Eiichi Kito, Tsuyoshi Tanabe, Takuya Yoshimi, Kazuharu Ueta, Makoto Iriuchijima, Yasunori Ohta
-
Publication number: 20100163751Abstract: Comprising a first step of supporting a substrate formed with a scintillator on at least three protrusions of a target-support element disposed on a vapor deposition table so as to keep a distance from said vapor deposition table; a second step of introducing said vapor deposition table having said substrate supported by said target-support element into a vapor deposition chamber of a CVD apparatus; and a third step of depositing an organic film by CVD method onto all surfaces of said substrate, provided with said scintillator, introduced into said vapor deposition chamber.Type: ApplicationFiled: December 17, 2009Publication date: July 1, 2010Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Takuya HOMME, Toshio Takabayashi, Hiroto Sato
-
Patent number: 7741619Abstract: An objective is to provide a flat panel detector exhibiting high durability and less noise, which is fitted with a scintillator for radiation exhibiting high emission efficiency, wherein the scintillator is easy to be manufactured because of the simple structure. Also disclosed is a scintillator panel for radiation possessing a radiotransparent substrate and provided thereon, a phosphor layer from which light is emitted by exposing the substrate to radiation and a reflective film at which light from the phosphor layer is reflected, wherein the reflective film provided between the substrate and the phosphor layer possesses a multilayer film composed of at least two dielectric layers exhibiting a high reflectivity.Type: GrantFiled: July 7, 2008Date of Patent: June 22, 2010Assignee: Konica Minolta Medical & Graphic, Inc.Inventors: Mitsuru Sekiguchi, Takehiko Shoji
-
Publication number: 20100116992Abstract: There are provided a scintillator panel excellent in productivity and exhibiting enhanced emission-extracting efficiency and sharpness, resulting in reduced deterioration in sharpness between planar light-receiving element, and a radiation flat panel detector.Type: ApplicationFiled: February 22, 2008Publication date: May 13, 2010Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.Inventors: Shinji Kudo, Yasushi Nakano
-
Publication number: 20100117006Abstract: A scintillator panel exhibiting enhanced emission luminance is disclosed, comprising a phosphor layer containing a phosphor capable of emitting light upon exposure to radiation, a substrate supporting the phosphor layer and a protective film covering the phosphor layer and the substrate, wherein the phosphor layer comprises two or more layers, and satisfying the following expression 1: 1.0?B/A?1000??Expression 1 wherein B is an average activator concentration (mol %) of an uppermost phosphor layer, based on a phosphor and A is an average activator concentration (mol %) of the other phosphor layers, based on a phosphor.Type: ApplicationFiled: April 3, 2008Publication date: May 13, 2010Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.Inventors: Naoyuki Sawamoto, Takehiko Shoji, Masashi Kondo
-
Publication number: 20100108912Abstract: A scintillator plate which is excellent in sharpness and luminance is disclosed, comprising sequentially on a substrate a reflection layer and a scintillator layer containing cesium iodide and an activator and having a thickness of L, wherein the following requirement (1) is met: 2?B/A??Requirement (1) wherein A is an average activator concentration of the scintillator layer and B is an activator concentration in a region of the scintillator layer from the reflection layer side to the position of L/5.Type: ApplicationFiled: April 3, 2008Publication date: May 6, 2010Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.Inventors: Mika Sakai, Takehiko Shoji
-
Publication number: 20100102251Abstract: The present invention has the objective to increase the light output yield of a light conversion foil in comparison to the impacting light. There is proposed to realize the following effects in the various layers of a conversion foil, individually or in combination, namely the isolation of the conversion layer (3) from the support (1) by a, preferably microporous and mesoporous, interlayer (2), and the incorporation of scattering centers (4) either into this interlayer, or into the conversion layer, or into both.Type: ApplicationFiled: September 14, 2009Publication date: April 29, 2010Inventors: Rolando Ferrini, Urs Fuerholz, Olivier Nicolet, Marc Pauchard, Juliette Perrenoud, Libero Zuppiroli
-
Patent number: 7704651Abstract: A radiographic image conversion panel containing a substrate having thereon a phosphor layer formed by a vapor-accumulating method, wherein the phosphor layer has a thickness distribution of not more than ±20%, the thickness distribution being defined by the formula: ((Dmax?Dmin)/(Dmax+Dmin))×100, provided that Dmax is a maximum thickness of the phosphor layer; and Dmin is a minimum thickness of the phosphor layer.Type: GrantFiled: August 17, 2007Date of Patent: April 27, 2010Assignee: Konica Minolta Medical & Graphic, Inc.Inventors: Hideki Shibuya, Kuniaki Nakano, Shigetami Kasai
-
Patent number: 7692161Abstract: A computed radiography plate including a substrate is provided. The computed radiography plate also includes at least one phosphor layer disposed above the substrate. The computed radiography plate also includes a protective layer disposed above the phosphor layer. The computed radiography plate further includes multiple patterns inscribed within at least one of the phosphor layer, the protective layer or the substrate.Type: GrantFiled: December 10, 2007Date of Patent: April 6, 2010Assignee: General Electric CompanyInventors: Nelson Raymond Corby, Jr., Clifford Bueno
-
Patent number: 7675039Abstract: A phosphor sheet 8 for a radiation detector used by being attached to a photoelectric conversion film 20 of a radiation detector 4 includes a sheet-shaped support 11, and a phosphor layer 12 provided thereon. The phosphor layer 12 contains a europium-activated rare earth oxysulfide phosphor having a europium concentration in a range of 0.01 to 3.5 mol %. The radiation detector 4 includes the phosphor sheet 8 being irradiated with radiation rays transmitted through a specimen and converting the radiation rays into light, a photoelectric conversion film 20 for converting the light from the phosphor sheet 8 into electric charges, and a charge information reading section 30 for reading out the charges generated on the photoelectric conversion film 20 for each of a plurality of pixels 31.Type: GrantFiled: September 25, 2003Date of Patent: March 9, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Eiji Oyaizu, Masami Okamura
-
Publication number: 20100051837Abstract: Disclosed is a radiation image conversion panel containing a support having thereon a phosphor layer containing an alkali metal halide phosphor which is deposited on the support by a gas phase accumulation method, wherein the alkali metal halide phosphor includes a columnar crystal and an existing ratio of an activation agent of the columnar crystal on a surface of the columnar crystal to an inner portion of the columnar crystal is from 0.7 to 20.Type: ApplicationFiled: March 11, 2008Publication date: March 4, 2010Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.Inventors: Keiko Maeda, Tetsuo Shima
-
Publication number: 20100034351Abstract: Disclosed are a radiation image conversion panel, which provides high luminance, an image without white or black defects, an image free from cracks and an image with reduced unevenness, and its manufacturing method. Also disclosed is an X-ray radiographic system employing the radiation image conversion panel. The radiation image conversion panel of the invention comprises a substrate and provided thereon, a reflection layer, a phosphor layer and a protective layer in that order, wherein the phosphor layer is composed of a phosphor crystal in the form of column, and the reflection layer is formed by vapor phase deposition of two or more kinds of metals.Type: ApplicationFiled: February 22, 2008Publication date: February 11, 2010Inventors: Takafumi Yanagita, Tadashi Arimoto
-
Patent number: 7659524Abstract: A method of preparing a radiation image conversion panel including a substrate and a phosphor layer, may include heating an evaporation source containing a phosphor raw material to evaporate the raw material and depositing an evaporated material on the substrate to form the phosphor layer, while the substrate being heated, wherein in (ii), a temperature of the substrate increases at a rate of 0 to 5° C./min, and falling within a range of from 60 to 110° C.Type: GrantFiled: July 2, 2008Date of Patent: February 9, 2010Assignee: Konica Minolta Medical & Graphics, Inc.Inventors: Shinichi Okamura, Takafumi Yanagita
-
Patent number: 7655927Abstract: The present invention relates to a radiation image converting panel with a structure to realize an improvement in moisture resistance in the periphery of the panel. The radiation image converting panel comprises a support body and a radiation converting film formed on the support body. The radiation converting film is formed on a film forming region which exists within a first main surface of the support body and includes at least a gravity center position of the first main surface. An average crystal diameter of columnar crystals located on a peripheral measuring area of the film forming region is controlled to be 1.3 times or more larger than an average crystal diameter of columnar crystals located on a central measuring area corresponding to a gravity center position of the film forming region, whereby moisture resistance in the periphery of the panel is improved, so that a sufficient fluorescence lifetime of the panel as a whole is maintained.Type: GrantFiled: January 8, 2009Date of Patent: February 2, 2010Assignee: Hamamatsu Photonics K.K.Inventors: Jun Sakurai, Ichinobu Shimizu, Gouji Kamimura
-
Patent number: 7655926Abstract: Provided are a rare earth activated alkaline earth metal fluorohalide stimulable phosphor exhibiting high image quality of radiation images and reduction of luminance degradation, and a radiation image conversion panel employing the stimulable phosphor represented by Formula (1) Ba(1-x)M2(x)FBr(y)I(1-y):aM1, bLn, cO, wherein M1 is at least an alkali metal selected from the group consisting of Li, Na, K, Rb and Cs; M2 is at least an alkaline earth metal selected from the group consisting of Be, Mg, Sr and Ca; Ln is at least a rare earth element selected from the group consisting of Ce, Pr, Sm, Eu, Gd, Tb, Tm, Dy, Ho, Nd, Er and Yb; and x, y, a, b and c are values meeting the following conditions: 0?x?0.3, 0?y?0.9, 0?a?0.05 0<b?0.2 and 0?c?0.1, wherein a spectral width at 80% intensity to the maximum intensity of an instantaneous excitation spectrum is 23.0 nm or less.Type: GrantFiled: March 1, 2006Date of Patent: February 2, 2010Assignee: Konica Minolta Medical & Graphic, Inc.Inventor: Kiyoshi Hagiwara
-
Publication number: 20100012854Abstract: A scintillator plate has a radiation-permeable substrate on which a scintillator layer is applied. The substrate is composed of a cellular metallic material and has a smooth, closed outer skin. Such a scintillator plate has high mechanical stability with good radiation permeability.Type: ApplicationFiled: July 17, 2009Publication date: January 21, 2010Inventors: Martin Hoheisel, Klaus Lowack
-
Publication number: 20100006762Abstract: A reflective resin sheet is bonded to one face of a supporting substrate transmitting a radiation ray and a resin sheet of the same material as that of the reflective resin sheet to the other face of the supporting substrate. A phosphor layer converting a radiation ray into visible light is formed additionally on the reflective resin sheet formed on one face of the supporting substrate. The phosphor layer is enclosed with an additional moisture-proof layer and the reflective resin sheet. It is possible to obtain a scintillator panel higher in sensitivity characteristics, stabilized in quality and more cost-effective by placing the reflective resin sheet between the supporting substrate and the phosphor layer.Type: ApplicationFiled: September 23, 2009Publication date: January 14, 2010Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Electron Tubes & Devices Co., Ltd.Inventors: Atsuya Yoshida, Hiroshi Horiuchi
-
Publication number: 20090323059Abstract: A microscope for optical imaging of high optical scattering coefficient biological tissue, comprising an optical excitation source for irradiating a scan area of the sample and generating optical emissions, wherein the sample has a first face facing away from the source and a second face facing the source. A two dimensional element for scanning the light over the sample; a focusing element having a numerical aperture NAi to focus the light onto the sample; a first optical condenser to collect light from the first face, the collected light comprising source transmitted light and first optical emission generated in the sample, the condenser having a NA2 larger than NAi; an optical filter to block the transmitted source light; an aperture with a size corresponding to the irradiated area of the sample, the aperture at the conjugate image position of the sample generated by the condenser; and an optical detector collecting light from the first face for detecting the first optical emission from the scan area.Type: ApplicationFiled: June 29, 2007Publication date: December 31, 2009Inventors: Wanxin Sun, Hanry Yu
-
Publication number: 20090303727Abstract: A Safety reflector suitable as a road stud or hazard reflecting ornament able to utilize ambient light without solar panels batteries or diodes, in order to reflect light multi-dimensionallyType: ApplicationFiled: April 2, 2009Publication date: December 10, 2009Inventor: Leif Eric Tobias Levon
-
Patent number: 7618511Abstract: An auxiliary substrate 20 is overlapped onto a thin substrate 11, and substrate 11 and auxiliary substrate 20 are covered with an organic film 12. Thereafter, a scintillator 13 is formed on a scintillator forming portion 12A of organic film 12 that corresponds to substrate 11. Here, since thickness is added to substrate 11 by auxiliary substrate 20, the warping of substrate 11 is prevented and scintillator 13 is formed uniformly.Type: GrantFiled: March 5, 2004Date of Patent: November 17, 2009Assignee: Hamamatsu Photonics K.K.Inventors: Hiroto Sato, Takaharu Suzuki, Masahiro Suganuma
-
Publication number: 20090278056Abstract: There is provided, in a light source having at least an excitation light source, a rare-earth doped, fluoride optical waveguide, a multiplexing means and an optical fiber for output, an ASE light source characterized in that an ASE light that has a wavelength shorter than an excitation light and that has been generated by an up-conversion process generated in an inside of the rare-earth doped, optical waveguide is outputted to outside via at least one long-wavelength cut-off device provided inside or outside of an apparatus.Type: ApplicationFiled: April 13, 2007Publication date: November 12, 2009Applicant: CENTAL GLASS COMPANY, LIMITEDInventors: Hideyuki Okamoto, Yoshinori Kubota, Takuya Teshima
-
Publication number: 20090277494Abstract: Light collectors for use in building-integrated solar concentrators comprise waveguiding components incorporating spaced-apart light collecting elements arranged to collect light from a plurality of lenses in a lens array and deliver light to solar cells for photovoltaic conversion, where several lenses are coupled to each individual solar cell. The light collecting elements may comprise shaped ends of bulk waveguides to deliver incident solar radiation directly to the solar cells, or luminescent or amplifying material that converts the incident radiation to a secondary light signal that is delivered to the cells. The lenses may be pivotally mounted in a variety of ways to improve solar tracking by avoiding mechanical clashes between lenses and optimising the amount of incident light that is harvested. Filters containing heavy water may be positioned in front of the solar cells to absorb long wavelength light unconvertible by the cells, heat energy being then extractable from the heavy water.Type: ApplicationFiled: October 23, 2006Publication date: November 12, 2009Applicant: SOLARSTRUCTURE LIMITEDInventors: Massimo Mazzer, Barry M. Clive, Keith W.J. Barnham
-
Publication number: 20090261273Abstract: The present invention relates a radiation image converting panel with a structure capable of arbitrarily controlling a change in luminance distribution of an entire panel surface after formation of a moisture-resistant protective film. The radiation image converting panel comprises a radiation converting film doped with Eu and covered with a moisture-resistant protective film. The Eu concentration in the radiation converting film is preliminarily adjusted such that the Eu concentration at a central portion or peripheral portion of the film falls within an optimal range, and the other film portion is provided with a positive or negative concentration gradient such that the Eu concentration thereof gradually become higher or lower than the optimal range. The luminance distribution of the entire panel in which the moisture-resistant protective film has been formed can be controlled by providing the Eu concentration to be added with a concentration gradient.Type: ApplicationFiled: December 11, 2008Publication date: October 22, 2009Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Jun Sakurai, Ichinobu Shimizu, Gouji Kamimura
-
Publication number: 20090261274Abstract: The present invention relates to a radiation image converting panel with a structure to realize an improvement in moisture resistance in the periphery of the panel. The radiation image converting panel comprises a support body and a radiation converting film formed on the support body. The radiation converting film is formed on a film forming region which exists within a first main surface of the support body and includes at least a gravity center position of the first main surface. An average crystal diameter of columnar crystals located on a peripheral measuring area of the film forming region is controlled to be 1.3 times or more larger than an average crystal diameter of columnar crystals located on a central measuring area corresponding to a gravity center position of the film forming region, whereby moisture resistance in the periphery of the panel is improved, so that a sufficient fluorescence lifetime of the panel as a whole is maintained.Type: ApplicationFiled: January 8, 2009Publication date: October 22, 2009Applicant: HAMAMATSU PHOTONICS K.KInventors: Jun SAKURAI, Ichinobu Shimizu, Gouji Kamimura
-
Publication number: 20090256084Abstract: These and other objects of the present invention are achieved by a process and apparatus for interrogating or scanning a photo-stimulable phosphor substrate containing projected image-wise information wherein a laser beam is directed towards a lens to produce a planar light beam directed onto the storage substrate as a focused light line to stimulate luminescent information detected by a linear sensor for collection and transmission to a computer assembly.Type: ApplicationFiled: May 22, 2009Publication date: October 15, 2009Inventors: EDGAR ALZNER, Yehuda Rosenstock
-
Patent number: 7601385Abstract: It is an object to provide a radiation image conversion panel exhibiting excellent properties in luminance and sharpness, and a preparation method thereof. Provided also is a drastically increased amount of stimulated luminescence of a post-manufacture radiation image conversion panel. Disclosed is a method for manufacturing a radiation image conversion panel in which a stimulable phosphor layer having a thickness of not less than 50 ?m is formed on a support vapor deposition and then is heat-treated, wherein a ratio of transmittance T/T0 (T represents transmittance after heat-treating, and T0 before heat-treating) at a stimulated luminescence wavelength of the stimulable phosphor is 0.5?T/T0?10. Also disclosed is a method for manufacturing a radiation image conversion panel via conducting a process of soaking in a halogenated solvent, as well as a process of heating a phosphor panel possessing a stimulable phosphor layer.Type: GrantFiled: April 19, 2005Date of Patent: October 13, 2009Assignee: Konica Minolta Medical & Graphic, Inc.Inventors: Osamu Morikawa, Takehiko Shoji, Shinji Kudo
-
Patent number: 7601973Abstract: The invention relates to a radiography system with a recording device and to a corresponding method for recording X-rays in storage phosphor layers. In order to improve a picture quality of an X-ray, a recording control is provided for controlling the recording device such that in a first phosphor layer having a first thickness, an X-ray with a first energy limit of the X-ray radiation is recorded, and in a second phosphor layer, having a second thickness which is greater than the first thickness, an X-ray with a second energy limit of the X-ray radiation is recorded, the second energy limit of the X-ray radiation being greater than the first energy limit of the X-ray radiation.Type: GrantFiled: February 9, 2006Date of Patent: October 13, 2009Assignee: Agfa-Gevaert HealthCare GmbHInventors: Joerg Frankenberger, Robert Fasbender, Clemens Herrmann, Johan Lamotte, Stephan Mair, Horst Scherer
-
Publication number: 20090250633Abstract: An objective is to provide a high quality radiation image conversion panel and a manufacturing method thereof in which strength and heat resistance of an undercoat resin layer, and no cracks are generated in a stimulable phosphor layer. Disclosed is a radiation image conversion panel comprising a support and provided thereon, a stimulable phosphor layer, wherein a crosslinked undercoat resin layer that is formed between the support and the stimulable phosphor layer has a chemical bonding intensity ratio of NCO group/methyl group of 0.2-2.0.Type: ApplicationFiled: October 24, 2005Publication date: October 8, 2009Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.Inventors: Shinichi Okamura, Takafumi Yanagita
-
Patent number: 7592609Abstract: Disclosed herein are a thermoluminescent dosimeter for radiation monitoring, comprising LiF doped with Mg, Cu and Si, and a fabrication method thereof. The LiF:Mg,Cu,Si thermoluminescent dosimeter is fabricated by heating a LiF-based thermoluminescent powder material having a composition of LiF mother material, 0.1-0.5 mol % of a Mg compound, 0.001-0.05 mol % of a Cu compound and 0.5-1.3 mol % of a Si compound to a temperature of 900-1200° C. to melt the LiF-based material, cooling the melted material, compression-molding the cooled material, sintering the molded material, cooling the sintered material, and then annealing the cooled material. The thermoluminescent dosimeter has high thermal stability and thus maintains constant thermoluminescence sensitivity even when it is annealed at a high temperature of more than 240° C.Type: GrantFiled: April 26, 2007Date of Patent: September 22, 2009Assignees: Korea Atomic Energy Research Institute, Korea Hydro & Nuclear Power Co. Ltd.Inventors: Jang-Lyul Kim, Jung-Il Lee, Jeong-Sun Yang, Bong-Hwan Kim, Jong-Soo Kim
-
Publication number: 20090224177Abstract: A color conversion member of a high efficiency achieved by restraining fluorescence emitted from a certain phosphor from being absorbed again by another different phosphor, as well as a light emitting apparatus including the color conversion member are provided. The color conversion member includes N light transmissive members each containing a different one of N different phosphors illuminated with excitation light to emit fluorescence in a visible wavelength region, and the N light transmissive members are stacked in order (N is a natural number of not less than two). The color conversion member is designed in such a manner that the refractive index increases in the thickness direction while the fluorescence wavelength decreases in the thickness direction.Type: ApplicationFiled: February 27, 2009Publication date: September 10, 2009Applicant: SHARP KABUSHIKI KAISHAInventors: Junichi KINOMOTO, Hajime SAITO
-
Publication number: 20090218518Abstract: Apparatus for carrying out real-time PCR reactions, including a thermocycler having a reaction region with a plurality of temperature-regulable receptacles for reaction vessels, an illumination device, which has a plurality of light-emitting diodes and is assigned to the reaction region and by means of which excitation light can be radiated into the receptacles, a detector device, which generates measured values in a manner dependent on a measured light intensity, optical devices defining a beam path that leads from the illumination device to the receptacles and from there to the detector device, a reference device, which generates a reference measured value by measurement of the light intensity of a light-emitting diode, and an evaluation device, which takes into account the reference measured value with the measured values, wherein the reference device has a reference light-emitting diode, the light of which is coupled into the beam path behind the reaction region.Type: ApplicationFiled: September 1, 2006Publication date: September 3, 2009Applicant: EPPENDORF AGInventors: Andreas Schirr, Gerd Eckert, Markus Lapczyna
-
Patent number: 7564047Abstract: An objective is to provide a radiation image conversion panel exhibiting no generation of cracks in a phosphor layer, easy cutting, improved image and excellent productivity, and also to provide a manufacturing method and a cassette thereof. Disclosed is a radiation image conversion panel possessing a support and provided thereon, a phosphor layer possessing phosphor having a columnar crystal structure, wherein a region in which no phosphor layer is provided on a surface of the support is within 0.5 mm from an edge of the support.Type: GrantFiled: October 26, 2007Date of Patent: July 21, 2009Assignee: Konica Minolta Medical & Graphic, Inc.Inventors: Tadashi Arimoto, Takafumi Yanagita, Yoshihiro Gorouya
-
Publication number: 20090173892Abstract: Methods and apparatus relating to the imaging of biological samples are provided. More particularly, they relate to the detection of light emanating from fluorescent species present in a sample in order to study the structure and dynamics of such a sample. Such a method of analysis comprises irradiating the sample with a pulse of excitation energy causing fluorescent species in the sample to fluoresce; detecting light emanating from the sample during a predetermined period of time after the pulse; generating and storing data recording at least the wavelength of the detected light against time; and analysing the data with reference to the respective lifetimes of the fluorescent species to detect the presence of the respective emissions from three or more different fluorescent species which emit light simultaneously during at least part of said predetermined period, which are indistinguishable from each other on the basis of their wavelength or lifetime alone.Type: ApplicationFiled: January 19, 2007Publication date: July 9, 2009Applicant: PERKINELMER SINGAPORE PTE LTD.Inventors: Patrick Courtney, Paul Orange, Janet Park, Claire Hooper
-
Publication number: 20090166559Abstract: The present invention relates to curable silicone compositions which include a fluorescent agent for detection purposes and which have a cure system which enables the silicone compositions to possess improved depth of cure. The silicone compositions are photocurable, and may also be moisture or heat curable.Type: ApplicationFiled: November 18, 2005Publication date: July 2, 2009Applicant: Henkel CorporationInventors: Michael P. Levandoski, Hsien-Kun Chu, Richard Corrao
-
Patent number: 7554101Abstract: In favor of adhesion between phosphor layer and support in a radiation image phosphor or scintillator panel comprising as an arrangement of layers, in consecutive order, a support, a precoat layer and a phosphor or scintillator layer having needle-shaped phosphor or scintillator crystals, said precoat layer comprises as a binder an organic cross-linkable monomer, oligomer, polymer or a mixture thereof and a pigment in a weight ratio of pigment to binder in the range from 1/10 to 10/1.Type: GrantFiled: May 29, 2007Date of Patent: June 30, 2009Assignee: Agfa HealthCareInventors: Jean-Pierre Tahon, Carlo Uyttendaele
-
Publication number: 20090152474Abstract: A fluorescence imaging device comprises a light source with two wavelengths and variable lighting power. The light source is in the form of a ring and it comprises an alternation of first and second zones respectively able to emit first and second light radiations respectively having distinct first and second wavelengths. Each of the zones further comprises a plurality of elementary light sources controllable independently by selective lighting control means of said elementary sources.Type: ApplicationFiled: July 28, 2006Publication date: June 18, 2009Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUEInventors: Michel Berger, Alain Gliere, Henri Grateau
-
Publication number: 20090146080Abstract: To determine the oxygen partial pressure distribution in at least one tissue surface section, a fluorescent dye is applied to the tissue surface section, which is impinged with excitation light in order to generate fluorescence. In the rise phase of the fluorescence, at least one first fluorescent image is taken by means of a camera system and in the fall phase of the fluorescence at least one second fluorescent image is taken. Subsequently, the fluorescent intensities in the rise and fall phase are determined based on the first and second fluorescent images taken and, by a ratio formation of the determined fluorescent intensities, the oxygen partial pressure distribution in the at least one tissue surface section is determined.Type: ApplicationFiled: June 14, 2006Publication date: June 11, 2009Inventor: Gregor Liebsch
-
Publication number: 20090146079Abstract: A computed radiography plate including a substrate is provided. The computed radiography plate also includes at least one phosphor layer disposed above the substrate. The computed radiography plate also includes a protective layer disposed above the phosphor layer. The computed radiography plate further includes multiple patterns inscribed within at least one of the phosphor layer, the protective layer or the substrate.Type: ApplicationFiled: December 10, 2007Publication date: June 11, 2009Applicant: GENERAL ELECTRIC COMPANYInventors: Nelson Raymond Corby, JR., Clifford Bueno