Eastman-kodak Company

Carestream Health, Inc.

Other

University of Pittsburgh

Carestream Dental Technology Topco Limited

Thomson Research Associates International Limited

Seshadri Jagannathan

Ramesh Jagannathan

Sridhar Sadasivan

Glen C Irvin, Jr

Rajesh Vinodrai Mehta

David John Nelson

Suresh Sunderrajan

John E Rueping

Charles M Rankin

Thomas N Blanton

Kevin L Bishop

Gary Edward Merz

Jerzy A Budz

Jean-Marc Inglese

Tommie L Royster, Jr

David W Gruszczynski

David E Fenton

Brian Patrick Aylward

Daniel M Leusch

Lawrence D Folts

Samuel Chen

John W Boettcher

Chang-Ying Joseph Yang

Barbara Ulreich

Betsy J Guffey

Richard A Lombardo

Dilip K Chatterjee

Timothy John Tredwell

Mark Edward Irving

Lloyd A Lobo

David D Tuschel

Kathleen R Gisser

Philip J Zola

Heinz E Stapelfeldt

Heidi E Dankosh

Mark S Purdum

Ross A Sprout

Tin T Vo

David C Gliottone

Narasimharao Dontula

Kenneth Joseph Reed

Kurt Michael Schroeder

Eric R Schmittou

Roger L Klaus

James R Milch

Sanford A Asher

Bradley Stephen Jadrich

Peter Jerome Cowdery-Corvan

Michael W Orem

Allen K Tsaur

Jerzy Z Mydlarz

Yun C Chang

Marcus Stephen Bermel

David Wallace Sandford

Kelly Stephen Robinson

Bradley M Houghtaling

Jess B Hendricks, Iii

Marcia K Hansen

Julia S Tan

Eric L Dillenbeck

Craig L Barnes

Karen L Pond

Byron R Sever

Thomas C Jackson

Rajendrakumar V Mehta

Robert S Cupello

Harold G Judd

David F Mahar

Rasu Kesavamoorthy

Guisheng Pan

Song-Yuan Chang

Joseph J Tiberio

David G Juhas

William C Lenhart

Yannick Lerat

Alan R Sadler

Thomas Nelson Blanton

Betsy Guffey

David Gruszczynski

Brian P Aylward

Yun Chea Chang

Mark Steven Fornalik

Jerzy Antoni Budz

Patricia A Walsh

Kevin Lee Bishop

Craig Llewellyn Barnes

A cathode of an electron emitting device is described, where the cathode comprises a carbon nanotube (CNT); a nano-filler material; and a carbonizable polymer, and where the cathode exhibits increased hardness, is formed by high temperature thermal treatment, and is devoid of a substrate. Also described is a method of forming a cathode of an electron emitting device, where the method comprises a) forming a dispersed mixture comprising a carbon nanotube, a nano-filler material, and a carbonizable polymer in a solvent; b) coating and/or extruding the mixture; c) drying the coated and/or extruded mixture to remove at least a substantial portion of the solvent; and d) subjecting the dried mixture to a high temperature thermal treatment; where the method results in the cathode of an electron emitting device having increased hardness.

Carbon nanotube based cold cathodes for x-ray generation

A storage phosphor panel can include an extruded inorganic storage phosphor layer including a thermoplastic polymer and an inorganic storage phosphor material, where the extruded inorganic storage phosphor panel has an image quality comparable to that of a traditional solvent coated inorganic storage phosphor screen. Further disclosed are certain exemplary method and/or apparatus embodiments that can provide inorganic storage phosphor panels including a selected blue dye that can be recycled while maintaining sufficient image quality characteristics.

Radiation sensing thermoplastic composite panels

A storage phosphor panel can include an extruded inorganic storage phosphor layer including a thermoplastic polymer and an inorganic storage phosphor material, where the extruded inorganic storage phosphor panel has an image quality comparable to that of a traditional solvent coated inorganic storage phosphor screen. Further disclosed are certain exemplary method and/or apparatus embodiments that can provide inorganic storage phosphor panels including a selected blue dye that can improve resolution. Certain exemplary storage phosphor panels include inorganic storage phosphor material with specific extrudable blue dye (copper phthalocyanine) for resolution greater than 16 line pairs per mm. Certain exemplary storage phosphor panel embodiments include any non-needle storage phosphor panel with resolution greater than or equal to 19 line pairs per mm.

A storage phosphor panel can include an extruded inorganic storage phosphor layer including a thermoplastic polymer and an inorganic storage phosphor material, where the extruded inorganic storage phosphor panel has an image quality comparable to that of a traditional solvent coated inorganic storage phosphor screen. Further disclosed are certain exemplary method and/or apparatus embodiments that can provide inorganic storage phosphor panels including reduced noise. Further disclosed are certain exemplary method and/or apparatus embodiments that can include inorganic storage phosphor layer including at least one polymer, an inorganic storage phosphor material, and a copper phthalocyanine based blue dye.

A storage phosphor panel can include an extruded inorganic storage phosphor layer including a thermoplastic polyolefin and an inorganic storage phosphor material, where the extruded inorganic storage phosphor panel has a DQE comparable to that of a traditional extruded inorganic solvent coated inorganic storage phosphor screen. Also disclosed is an inorganic storage phosphor detection system including an extruded inorganic storage phosphor panel that can include an extruded inorganic storage phosphor layer including a thermoplastic olefin and an inorganic storage phosphor material; and photodetector(s) coupled to the extruded inorganic storage phosphor panel to detect photons generated from the extruded inorganic storage phosphor panel. Further disclosed is a method of making an extruded inorganic storage phosphor panel that can include providing thermoplastic particles including at least one thermoplastic polyolefin and an inorganic storage phosphor material; and melt extruding the thermoplastic particles to form an extruded inorganic storage phosphor layer.

Described is a scintillator screen including a plurality of filaments. Each of the plurality of filaments includes scintillating particles dispersed within a thermoplastic polymer. The thermoplastic polymer includes an elastic additive. The scintillating particles are from about 10 volume percent to about 60 volume percent of each of the plurality of filaments. Each of the plurality of filaments has a refractive index of greater than or equal to 1.5. The plurality of filaments are substantially parallel to each other and are at a volume packing of from about 60 percent to about 90 percent.

Digital radiography detector

Described is a scintillator screen that includes a supporting layer having a phosphor dispersed in a polymeric binder disposed on the supporting layer and a barrier layer disposed on the polymeric binder. The barrier layer includes a non-moisture absorbing polymer selected from the group consisting of polyethylene terephthalate, cellulose diacetate, ethylene vinyl acetate and polyvinyl butyraldehyde. The barrier layer has a thickness of less than 1 micron. An antistatic layer is disposed on the barrier layer. The antistatic layer includes poly(3,4-ethylenedixythiophene)-poly(styrene sulfonate) (PEDOT/PSS) dispersed in a polymer selected from the group consisting of a polyester and a polyurethane. The antistatic layer has a transparency of greater than 95 percent at a wavelength of from about 400 nm to 600 nm.

Coatings for digital detectors

Provided herein are laminated devices including an extruded scintillation screen comprising a scintillator material that does not attract dust, and a thermally-sensitive elastomer binder; and a fiber optic plate. Also provided herein are methods of making a laminated device and methods of making an X-ray imaging panel.

X-ray imaging panel with thermally-sensitive adhesive and methods of making thereof

There is described a digital radiography panel that includes a scintillator screen, an adhesive layer and a flat panel detector. The scintillator screen includes a supporting layer; a phosphor dispersed in a polymeric binder disposed on the supporting layer and an antistatic layer disposed on the polymeric binder, wherein the antistatic layer has a transparency of greater than 95 percent at a wavelength of from about 400 nm to 600 nm and a surface resistivity of less than 10ohms per square. The adhesive layer is disposed on the scintillator screen and includes a material selected from the group consisting of acrylic polymers and urethane polymers. The adhesive layer has a thickness of from about 5 &#x3bc;m to about 15 &#x3bc;m. The adhesive layer has a transmittance of greater than 95 percent at a wavelength of from about 400 nm to 600 nm. The flat panel detector is disposed on the adhesive layer.

Adhesive layer for digital detectors

There is described a method of manufacturing a digital radiography panel. The method includes providing a scintillator screen and spray coating an acrylic adhesive composition on the scintillator screen. A flat panel detector and the scintillator screen with acrylic adhesive composition are compressed together at a force of about 5 psi to about 15 psi, at an atmospheric pressure of about 0.3 Torr to about 100.0 Torr for a time sufficient to affix the flat panel detector to the scintillator screen to form the digital radiography panel.

Method of manufacturing digital detectors

A patterned scintillator panel including an extruded scintillator layer comprising a thermoplastic polyolefin and a scintillator material, wherein the scintillator layer comprises a pattern. Also disclosed is a method of making a patterned scintillator panel including forming a scintillator layer by melt extrusion, the scintillator layer comprising thermoplastic particles comprising a thermoplastic polyolefin and a scintillator material; and patterning the scintillator layer. Further disclosed is a method of making a patterned scintillator panel including forming a scintillator layer by injection molding, the scintillator layer comprising thermoplastic particles comprising a thermoplastic polyolefin and a scintillator material; and patterning the scintillator layer.

Patterned radiation-sensing thermoplastic composite panels

Provided herein are exemplary embodiments for phosphor screen including a substrate, a stimulable phosphor layer disposed over the substrate, the stimulable phosphor layer including a stimulable phosphor material, and an adhesive layer disposed by solvent coating over the stimulable phosphor layer, the adhesive layer including solvent-coatable thermally-sensitive elastomers, where the adhesive layer has a dust adhesion of &#x2266;1 dust particles/sq.in.

Laminated storage phosphor panel with thermally-sensitive adhesive and methods of making thereof

A transparent scintillator panel including an extruded scintillation layer comprising a thermoplastic polyolefin and a scintillator material, wherein the transparent scintillator panel has an intrinsic MTF at least 5% greater than the iH50 of a solvent-coated DRZ+ screen. Also disclosed is a scintillation detection system including a transparent scintillator panel comprising an extruded scintillation layer comprising a thermoplastic olefin and a scintillator material; and at least one photodetector coupled to the transparent scintillator panel, wherein at least one photodetector is configured to detect photons generated from the transparent scintillator panel. Further disclosed is a method of making a transparent scintillator panel including providing thermoplastic particles comprising at least one thermoplastic polyolefin and a scintillator material; and melt extruding the thermoplastic particles to form an extruded scintillation layer.

Provided herein are scintillator screens comprising a substrate; a scintillation layer disposed over the substrate, the scintillation layer comprising a scintillator material; and an adhesive layer disposed by solvent coating over the scintillation layer, the adhesive layer comprising solvent-coatable thermally-sensitive elastomer, wherein the adhesive layer has a dust adhesion of &#x2266;1 dust particles/sq.in.

A storage phosphor screen including a substrate; a phosphor layer disposed over the substrate; and an overcoat layer disposed over the phosphor layer, wherein the overcoat layer comprises at least one organic solvent-soluble polymer and at least one light absorbing colorant, and wherein the light absorbing colorant is dispersed within the organic solvent-soluble polymer. Also disclosed is a method of preparing a storage phosphor screen including providing a substrate; providing a phosphor solution comprising a solvent, at least one stimulable phosphor, and a binder; providing an overcoat solution comprising a solvent, at least one organic solvent-soluble polymer and at least one light absorbing colorant; forming a phosphor layer over a surface of the substrate with the phosphor solution; and forming an overcoat layer over the phosphor layer with the overcoat solution, wherein the light absorbing colorant is dispersed within the overcoat layer.

Storage phosphor panel with overcoat comprising dye

Growing community of inventors

Rochester, NY, United States of America

Seshadri Jagannathan