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. |