With Optically-stimulated Phosphor Patents (Class 250/484.4)
  • Patent number: 7897938
    Abstract: 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: Grant
    Filed: December 17, 2009
    Date of Patent: March 1, 2011
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Takuya Homme, Toshio Takabayashi, Hiroto Sato
  • Patent number: 7893405
    Abstract: 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: Grant
    Filed: April 17, 2009
    Date of Patent: February 22, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazumi Nagano, Yoshihiro Ogawa, Satoshi Okada, Keiichi Nomura
  • Publication number: 20100307587
    Abstract: 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: Application
    Filed: June 8, 2010
    Publication date: December 9, 2010
    Applicant: NITTO DENKO CORPORATION
    Inventors: Michie Sakamoto, Megumu Nagasawa
  • Patent number: 7834330
    Abstract: 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: Grant
    Filed: March 22, 2006
    Date of Patent: November 16, 2010
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Takafumi Yanagita, Tadashi Arimoto
  • Patent number: 7829179
    Abstract: 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: Grant
    Filed: March 12, 2007
    Date of Patent: November 9, 2010
    Assignee: LG Innotek Co., Ltd.
    Inventors: Choong-Yong Sohn, Young-Wook Ko
  • Publication number: 20100270462
    Abstract: 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: Application
    Filed: April 6, 2009
    Publication date: October 28, 2010
    Inventors: Robert Sigurd Nelson, William Bert Nelson
  • Patent number: 7800088
    Abstract: 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: Grant
    Filed: November 2, 2005
    Date of Patent: September 21, 2010
    Assignee: NCR Corporation
    Inventors: Gary A. Ross, Graham I. Johnson, Barrie Clark, Simon J. Forrest
  • Patent number: 7800078
    Abstract: 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: Grant
    Filed: April 15, 2004
    Date of Patent: September 21, 2010
    Assignee: 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: 7781747
    Abstract: 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: Grant
    Filed: August 29, 2008
    Date of Patent: August 24, 2010
    Assignee: Dept. of Homeland Security
    Inventors: Gladys Klemic, Paul Bailey, Cecilia Breheny
  • Patent number: 7781746
    Abstract: 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: Grant
    Filed: March 27, 2009
    Date of Patent: August 24, 2010
    Assignee: Carestream Health, Inc.
    Inventors: Michael K. Rogers, Anthony Dirisio
  • Publication number: 20100207031
    Abstract: 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: Application
    Filed: February 16, 2010
    Publication date: August 19, 2010
    Inventor: Jürgen Leppert
  • Publication number: 20100193690
    Abstract: 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: Application
    Filed: January 29, 2010
    Publication date: August 5, 2010
    Applicant: Saint-Gobain Ceramics & Plastics, Inc.
    Inventor: Jeffrey D. Hunt
  • Patent number: 7767981
    Abstract: 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: Grant
    Filed: July 30, 2008
    Date of Patent: August 3, 2010
    Assignee: Fujifilm Corporation
    Inventors: Takeshi Kuwabara, Eiichi Kito, Tsuyoshi Tanabe, Takuya Yoshimi, Kazuharu Ueta, Makoto Iriuchijima, Yasunori Ohta
  • Publication number: 20100163751
    Abstract: 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: Application
    Filed: December 17, 2009
    Publication date: July 1, 2010
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Takuya HOMME, Toshio Takabayashi, Hiroto Sato
  • Patent number: 7741619
    Abstract: 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: Grant
    Filed: July 7, 2008
    Date of Patent: June 22, 2010
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Mitsuru Sekiguchi, Takehiko Shoji
  • Publication number: 20100116992
    Abstract: 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: Application
    Filed: February 22, 2008
    Publication date: May 13, 2010
    Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.
    Inventors: Shinji Kudo, Yasushi Nakano
  • Publication number: 20100117006
    Abstract: 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: Application
    Filed: April 3, 2008
    Publication date: May 13, 2010
    Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.
    Inventors: Naoyuki Sawamoto, Takehiko Shoji, Masashi Kondo
  • Publication number: 20100108912
    Abstract: 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: Application
    Filed: April 3, 2008
    Publication date: May 6, 2010
    Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.
    Inventors: Mika Sakai, Takehiko Shoji
  • Publication number: 20100102251
    Abstract: 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: Application
    Filed: September 14, 2009
    Publication date: April 29, 2010
    Inventors: Rolando Ferrini, Urs Fuerholz, Olivier Nicolet, Marc Pauchard, Juliette Perrenoud, Libero Zuppiroli
  • Patent number: 7704651
    Abstract: 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: Grant
    Filed: August 17, 2007
    Date of Patent: April 27, 2010
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Hideki Shibuya, Kuniaki Nakano, Shigetami Kasai
  • Patent number: 7692161
    Abstract: 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: Grant
    Filed: December 10, 2007
    Date of Patent: April 6, 2010
    Assignee: General Electric Company
    Inventors: Nelson Raymond Corby, Jr., Clifford Bueno
  • Patent number: 7675039
    Abstract: 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: Grant
    Filed: September 25, 2003
    Date of Patent: March 9, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Eiji Oyaizu, Masami Okamura
  • Publication number: 20100051837
    Abstract: 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: Application
    Filed: March 11, 2008
    Publication date: March 4, 2010
    Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.
    Inventors: Keiko Maeda, Tetsuo Shima
  • Publication number: 20100034351
    Abstract: 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: Application
    Filed: February 22, 2008
    Publication date: February 11, 2010
    Inventors: Takafumi Yanagita, Tadashi Arimoto
  • Patent number: 7659524
    Abstract: 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: Grant
    Filed: July 2, 2008
    Date of Patent: February 9, 2010
    Assignee: Konica Minolta Medical & Graphics, Inc.
    Inventors: Shinichi Okamura, Takafumi Yanagita
  • Patent number: 7655927
    Abstract: 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: Grant
    Filed: January 8, 2009
    Date of Patent: February 2, 2010
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Jun Sakurai, Ichinobu Shimizu, Gouji Kamimura
  • Patent number: 7655926
    Abstract: 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: Grant
    Filed: March 1, 2006
    Date of Patent: February 2, 2010
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventor: Kiyoshi Hagiwara
  • Publication number: 20100012854
    Abstract: 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: Application
    Filed: July 17, 2009
    Publication date: January 21, 2010
    Inventors: Martin Hoheisel, Klaus Lowack
  • Publication number: 20100006762
    Abstract: 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: Application
    Filed: September 23, 2009
    Publication date: January 14, 2010
    Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Electron Tubes & Devices Co., Ltd.
    Inventors: Atsuya Yoshida, Hiroshi Horiuchi
  • Publication number: 20090323059
    Abstract: 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: Application
    Filed: June 29, 2007
    Publication date: December 31, 2009
    Inventors: Wanxin Sun, Hanry Yu
  • Publication number: 20090303727
    Abstract: 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-dimensionally
    Type: Application
    Filed: April 2, 2009
    Publication date: December 10, 2009
    Inventor: Leif Eric Tobias Levon
  • Patent number: 7618511
    Abstract: 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: Grant
    Filed: March 5, 2004
    Date of Patent: November 17, 2009
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Hiroto Sato, Takaharu Suzuki, Masahiro Suganuma
  • Publication number: 20090278056
    Abstract: 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: Application
    Filed: April 13, 2007
    Publication date: November 12, 2009
    Applicant: CENTAL GLASS COMPANY, LIMITED
    Inventors: Hideyuki Okamoto, Yoshinori Kubota, Takuya Teshima
  • Publication number: 20090277494
    Abstract: 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: Application
    Filed: October 23, 2006
    Publication date: November 12, 2009
    Applicant: SOLARSTRUCTURE LIMITED
    Inventors: Massimo Mazzer, Barry M. Clive, Keith W.J. Barnham
  • Publication number: 20090261273
    Abstract: 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: Application
    Filed: December 11, 2008
    Publication date: October 22, 2009
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Jun Sakurai, Ichinobu Shimizu, Gouji Kamimura
  • Publication number: 20090261274
    Abstract: 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: Application
    Filed: January 8, 2009
    Publication date: October 22, 2009
    Applicant: HAMAMATSU PHOTONICS K.K
    Inventors: Jun SAKURAI, Ichinobu Shimizu, Gouji Kamimura
  • Publication number: 20090256084
    Abstract: 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: Application
    Filed: May 22, 2009
    Publication date: October 15, 2009
    Inventors: EDGAR ALZNER, Yehuda Rosenstock
  • Patent number: 7601385
    Abstract: 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: Grant
    Filed: April 19, 2005
    Date of Patent: October 13, 2009
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Osamu Morikawa, Takehiko Shoji, Shinji Kudo
  • Patent number: 7601973
    Abstract: 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: Grant
    Filed: February 9, 2006
    Date of Patent: October 13, 2009
    Assignee: Agfa-Gevaert HealthCare GmbH
    Inventors: Joerg Frankenberger, Robert Fasbender, Clemens Herrmann, Johan Lamotte, Stephan Mair, Horst Scherer
  • Publication number: 20090250633
    Abstract: 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: Application
    Filed: October 24, 2005
    Publication date: October 8, 2009
    Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.
    Inventors: Shinichi Okamura, Takafumi Yanagita
  • Patent number: 7592609
    Abstract: 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: Grant
    Filed: April 26, 2007
    Date of Patent: September 22, 2009
    Assignees: 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: 20090224177
    Abstract: 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: Application
    Filed: February 27, 2009
    Publication date: September 10, 2009
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Junichi KINOMOTO, Hajime SAITO
  • Publication number: 20090218518
    Abstract: 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: Application
    Filed: September 1, 2006
    Publication date: September 3, 2009
    Applicant: EPPENDORF AG
    Inventors: Andreas Schirr, Gerd Eckert, Markus Lapczyna
  • Patent number: 7564047
    Abstract: 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: Grant
    Filed: October 26, 2007
    Date of Patent: July 21, 2009
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Tadashi Arimoto, Takafumi Yanagita, Yoshihiro Gorouya
  • Publication number: 20090173892
    Abstract: 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: Application
    Filed: January 19, 2007
    Publication date: July 9, 2009
    Applicant: PERKINELMER SINGAPORE PTE LTD.
    Inventors: Patrick Courtney, Paul Orange, Janet Park, Claire Hooper
  • Publication number: 20090166559
    Abstract: 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: Application
    Filed: November 18, 2005
    Publication date: July 2, 2009
    Applicant: Henkel Corporation
    Inventors: Michael P. Levandoski, Hsien-Kun Chu, Richard Corrao
  • Patent number: 7554101
    Abstract: 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: Grant
    Filed: May 29, 2007
    Date of Patent: June 30, 2009
    Assignee: Agfa HealthCare
    Inventors: Jean-Pierre Tahon, Carlo Uyttendaele
  • Publication number: 20090152474
    Abstract: 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: Application
    Filed: July 28, 2006
    Publication date: June 18, 2009
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE
    Inventors: Michel Berger, Alain Gliere, Henri Grateau
  • Publication number: 20090146080
    Abstract: 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: Application
    Filed: June 14, 2006
    Publication date: June 11, 2009
    Inventor: Gregor Liebsch
  • Publication number: 20090146079
    Abstract: 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: Application
    Filed: December 10, 2007
    Publication date: June 11, 2009
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Nelson Raymond Corby, JR., Clifford Bueno