序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
161 Radiation image detection method and system US11486042 2006-07-14 US20070012890A1 2007-01-18 Kaku Irisawa
A radiation image detector includes an up-conversion phosphor layer for emitting fluorescence by irradiation with infrared light, a first electrode layer for transmitting the infrared light, the fluorescence and radiation carrying a radiation image, a photoconductive layer for recording, a charge storage portion, a photoconductive layer for readout, and a second electrode layer for transmitting the infrared light and the readout light. Radiation is recorded as latent image charge in the charge storage portion. The electric charge is read out from the charge storage portion by irradiating the photoconductive layer for readout with the readout light from the second electrode layer side. The up-conversion phosphor layer is irradiated with the infrared light from the second electrode layer side and remaining charge in the vicinity of the first electrode layer is erased by fluorescence emitted from the up-conversion phosphor layer by irradiation with the infrared light.
162 Radiographic image conversion panel US11228235 2005-11-10 US07153637B2 2006-12-26 Hideki Shibuya; Kuniaki Nakano; Shigetami Kasai
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.
163 Inorganic scintillator, and radiation detector and PET apparatus employing it US11437703 2006-05-22 US20060266945A1 2006-11-30 Kazuhisa Kurashige; Hiroyuki Ishibashi; Tatsuya Usui; Shigenori Shimizu; Naoaki Shimura
The inorganic scintillator of the invention has the chemical composition represented by CexLnySizOu (where Ln represents at least two elements selected from among Y, Gd and Lu. 0.001≦x≦0.1, 1.9≦y≦2.1, 0.9≦z≦1.1, 4.9≦u≦5.1) and emits fluorescence upon incidence of radiation, wherein the maximum peak wavelength in the intensity spectrum of the emitted fluorescence is a peak in the range between 450 nm and 600 nm.
164 Electroluminescent phosphor powders, methods for making phosphor powders and devices incorporating same US11410700 2006-04-24 US20060257659A1 2006-11-16 Mark Hampden-Smith; Toivo Kodas; James Caruso; Quint Powell; Klaus Kunze; Daniel Skamser
Electroluminescent phosphor powders and a method for making phosphor powders. The phosphor powders have a small particle size, narrow particle size distribution and are substantially spherical. The method of the invention advantageously permits the economic production of such powders. The invention also relates to improved devices, such as electroluminescent display devices, incorporating the phosphor powders.
165 Method for storing and reproducing radiation image and radiation image storage device US10180063 2002-06-27 US07091510B2 2006-08-15 Hirokazu Misawa; Kenji Takahashi; Satoshi Arakawa
A radiation image storage device composed of a fluorescent sheet which contains a phosphor which absorbs a radiation energy and emits a light of ultraviolet or visible region, and a radiation image storage panel having a fluorescent layer and a radiation image storage layer, in which the fluorescent layer contains a phosphor that absorbs a radiation energy and emits a light of ultraviolet or visible region, and the radiation image storage layer contains a stimulable oxide phosphor that absorbs the light emitted by the phosphors of the fluorescent layer and the fluorescent sheet to store energy of the absorbed light and releases the stored energy in the form of a light upon irradiation with a light of visible or infrared region is favorably employed for a radiation image storing and reproducing method.
166 X-ray image tube, X-ray image tube device and X-ray device US10795414 2004-03-09 US07053382B2 2006-05-30 Takashi Noji; Koichi Nittoh; Chikara Konagai
An object of the present invention is to provide an X-ray image tube which enables acquisition of an image of a proper density by increasing contrast without increasing an irradiation dose of X-rays. The X-rays absorbed or scattered through a subject emit light on an input surface formed in an input window, and the light is further converted into electrons on a photoelectric surface which converts the light into the electrons, accelerated and focused by a focusing electrode, and then guided to an anode side. The electrons guided to the anode side are made visible by a fluorescent substance, and an image of a color is projected on a glass plate with a luminance and a color based on a distribution of the incident X-rays in accordance with the dose of the X-rays.
167 Preparation of stimulable phosphor sheet US10761238 2004-01-22 US07009191B2 2006-03-07 Yuji Isoda
A stimulable phosphor sheet is prepared by applying an electron beam to a stimulable phosphor or its source in a vacuum to vaporize a phosphor or its source and depositing the vaporized phosphor or source on the support, under the condition that the electron beam is applied to the stimulable phosphor or source at an accelerating voltage of 1.5 kV to 5.0 kV. The stimulable phosphor or its source is preferably in the form of a solid having a relative density of 80% to 98%.
168 Oxygen-containing phosphor powders, methods for making phosphor powders and devices incorporating same US10424994 2003-04-28 US07005085B2 2006-02-28 Mark J. Hampden-Smith; Toivo T. Kodas; James Caruso; Daniel J. Skamser; Quint H. Powell
Phosphor powders and a method for making phosphor powders. The powders are oxygen-containing, such as metal oxides, silicates, borates or titanates and have a small particle size, narrow particle size distribution and are substantially spherical. The method of the invention advantageously permits the continuous production of such powders. The invention also relates to improved devices, such as display devices, incorporating the phosphor powders.
169 Flat storage element for an X-ray image US09869407 1999-11-29 US06974959B1 2005-12-13 Michael Thoms
Storage film (10) serving to produce latent X-ray images in lieu of conventional X-ray film, containing storage particles (20) which are held together by a binding agent (22) and in which metastable electronic excited states can be produced. The refractive index of the binding agent (22) and the storage particles (20) are selected in such a way that they are equally high so that the storage layer (12) formed by the storage particles (20) and the binding agent (22) behave like an optically homogenous body.
170 Cathodoluminescent phosphor powders, methods for making phosphor powders and devices incorporating same US09751341 2000-12-29 US06875372B1 2005-04-05 Mark J. Hampden-Smith; Toivo T. Kodas; James Caruso; Quint H. Powell; Klaus Kunze; Daniel J. Skamser
Cathodoluminescent phosphor powders and a method for making phosphor powders. The phosphor powders have a small particle size, narrow particle size distribution and are substantially spherical. The method of the invention advantageously permits the economic production of such powders. The invention also relates to improved devices, such as cathodoluminescent display devices, incorporating the phosphor powders.
171 Preparation of radiation image storage panel US10212042 2002-08-06 US06870167B2 2005-03-22 Yasuo Iwabuchi; Makoto Kashiwaya; Atsunori Takasu; Yuichi Hosoi
A radiation image storage panel having a phosphor layer which is composed of a phosphor having a matrix component and an activator component is prepared by the steps of forming on a substrate a lower prismatic crystalline layer composed of the matrix component by vapor deposition; and forming on the lower prismatic crystalline layer an upper prismatic crystalline layer composed of the matrix component and the activator component by vapor deposition.
172 Phosphor panel with a protective layer US10113252 2002-04-01 US06822243B2 2004-11-23 Rudi Van den Bergh; Paul Leblans; Ludo Joly; Luc Struye
A phosphor panel with a protective coating divided in at least two layers: a layer A, being closest to said phosphor layer and a layer B farther away from said phosphor layer wherein the layer A has a lower water vapor permeability coefficient than the layer B. Layer A has a water vapor permeability coefficient, P, so that 0 ≤ P ≤ 1 × 10 - 11 ⁢ cm 3 ⁡ ( STP ) · cm cm 2 · s · P ⁢   ⁢ a .
173 Binderless phosphor screen having a pigmented interlayer US10342712 2002-11-21 US06815095B2 2004-11-09 Paul Leblans; Luc Struye; Ludo Joly
A binderless stimulable phosphor screen is provided, comprising a vapor deposited phosphor layer on a support, wherein between the support and the phosphor layer a ceramic layer is present, wherein said ceramic layer preferably comprises a mixture of pigments so that the optical density of the phosphor screen is higher for the stimulating wavelength than for the stimulated emission wavelength of the vapor deposited phosphor.
174 Device with Mn2+ activated green emitting SrAl12O19 luminescent material US09746349 2000-12-26 US06774556B2 2004-08-10 Alok Mani Srivastava; Holly Ann Comanzo; Douglas Allen Doughty; William Winder Beers
A SrAl12O19 green luminescent material is doped with Mn2+ activator ions and at least one trivalent rare earth sensitizer ion species. Preferably, the material contains four rare earth ions: Ce3+, Pr3+, Gd3+ and Tb3+. Optionally, a portion of the aluminum may be substituted with magnesium. The material may be used as a display device or lamp phosphor or as an X-ray diagnostic or laser scintillator.
175 Radiation image conversation panel and preparation method thereof US10621634 2003-07-17 US20040016890A1 2004-01-29 Akihiro Maezawa; Noriyuki Mishina
A radiation image conversion panel is disclosed, comprising on a support a stimulable phosphor layer comprising a stimulable phosphor, wherein the stimulable phosphor layer is formed by vapor deposition on the support which is comprised of a polymer material. A preparation method thereof is also disclosed.
176 Method for manufacturing a transparent binderless storage phosphor screen US10461247 2003-06-13 US20040001953A1 2004-01-01 Luc Struye; Paul Leblans
A method has been disclosed for manufacturing a binderless storage phosphor screen or panel comprising a support and a stimulable phosphor layer with a layer thickness in the range from 100 nullm up to 1000 nullm, said phosphor layer having a transparency of at least 50% for radiation in the wavelength range from 350 nm up to 750 nm, characterized in that said transparency has been provided by melting of a powdery phosphor or a phosphor present in structured form in a structured layer, at least in part, in order to get a liquid phosphor layer, followed by solidifying said liquid phosphor layer.
177 Sulfur-containing phosphor powders, methods for making phosphor powders and devices incorporating same US09718640 2000-11-22 US06645398B1 2003-11-11 Mark J. Hampden-Smith; Toivo T. Kodas; James Caruso; Daniel J. Skamser; Quint H. Powell; Klaus Kunze
Sulfur-containing phosphor powders, methods for making phosphor powders and devices incorporating same. The powders have a small particle size, narrow particle size distribution and are substantially spherical. The method of the invention permits the continuous production of such powders. The invention also relates to products such as display devices incorporating such phosphor powders.
178 Electroluminescent phosphor powders, methods for making phosphor powders and devices incorporating same US09757302 2001-01-09 US06627115B2 2003-09-30 Mark J. Hampden-Smith; Toivo T. Kodas; James Caruso; Quint H. Powell; Klaus Kunze; Daniel J. Skamser
Electroluminescent phosphor powders and a method for making phosphor powders. The phosphor powders have a small particle size, narrow particle size distribution and are substantially spherical. The method of the invention advantageously permits the economic production of such powders. The invention also relates to improved devices, such as electroluminescent display devices, incorporating the phosphor powders.
179 Stimulable phosphor sheet US09675009 2000-09-29 US06624436B1 2003-09-23 Katsuhiro Kohda
A stimulable phosphor sheet comprises an intermediate layer constituted of a substance, which absorbs low energy components of radiation and transmits at least light having predetermined wavelengths, and stimulable phosphor layers, which are overlaid respectively on two surfaces of the intermediate layer. The substance contains a bismuth compound or at least one lead compound selected from the group consisting of PbF2, 2PbCO3.Pb(OH)2, PbTe, and PbWO4. The intermediate layer is chemically stable, has a high capability of separating energy distributions, and acts such that an energy subtraction image having good image quality is obtained from energy subtraction processing.
180 Binderless phosphor screen on a support colored with a pigment mixture US10342711 2002-11-20 US20030134087A1 2003-07-17 Ludo Joly; Paul Leblans; Luc Struye
A binderless stimulable phosphor screen has been described, comprising a phosphor layer with needle-shaped phosphor crystals on a support absorbing at least 30% of the stimulating light and reflecting at least 60% of the stimulated light, wherein the support can be a PET support including a mixture of blue and white pigments.
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