EP0285702A1 - Feuille de matière luminescente stimulable - Google Patents

Feuille de matière luminescente stimulable Download PDF

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Publication number
EP0285702A1
EP0285702A1 EP87117493A EP87117493A EP0285702A1 EP 0285702 A1 EP0285702 A1 EP 0285702A1 EP 87117493 A EP87117493 A EP 87117493A EP 87117493 A EP87117493 A EP 87117493A EP 0285702 A1 EP0285702 A1 EP 0285702A1
Authority
EP
European Patent Office
Prior art keywords
stimulable phosphor
sheet
phosphor sheet
support
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87117493A
Other languages
German (de)
English (en)
Other versions
EP0285702B1 (fr
Inventor
Kaoru - C/O Fuji Photo Co. Ltd Tamura
Terumi - C/O Fuji Photo Film Co. Ltd. Matsuda
Shumpeita - C/O Fuji Photo Film Co. Ltd. Torii
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP6958484A external-priority patent/JPS60212754A/ja
Priority claimed from JP6958384A external-priority patent/JPS60213646A/ja
Priority claimed from JP6958584A external-priority patent/JPS60211398A/ja
Priority claimed from JP6958784A external-priority patent/JPS60211400A/ja
Priority claimed from JP6958684A external-priority patent/JPS60211399A/ja
Priority claimed from JP6958884A external-priority patent/JPS60213897A/ja
Priority claimed from JP18012484A external-priority patent/JPS6157941A/ja
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of EP0285702A1 publication Critical patent/EP0285702A1/fr
Application granted granted Critical
Publication of EP0285702B1 publication Critical patent/EP0285702B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K4/00—Conversion screens for the conversion of the spatial distribution of X-rays or particle radiation into visible images, e.g. fluoroscopic screens

Definitions

  • the present invention relates to a stimulable phos­phor sheet employable in a radiation image recording and reproducing method utilizing a stimulable phosphor.
  • the method involves steps of causing a stimulable phosphor to absorb a radiation having passed through an object or having radiated from an object; sequentially exciting (or scan­ning) the phosphor with an electromagnetic wave such as visible light or infrared rays (stimulating rays) to release the radiation energy stored in the phosphor as light emission (stimulated emission); photoelectrically detecting the emitted light to obtain electric signals; and reproducing the radiation image of the object as a visible image, numerals, symbols, etc. from the electric signals.
  • an electromagnetic wave such as visible light or infrared rays (stimulating rays) to release the radiation energy stored in the phosphor as light emission (stimulated emission)
  • photoelectrically detecting the emitted light to obtain electric signals
  • reproducing the radiation image of the object as a visible image, numerals, symbols, etc. from the electric signals.
  • a radiation image is obtainable with a sufficient amount of information by applying a radiation to the ob­ject at a considerably smaller dose, as compared with the conventional radiography. Accordingly, the radiation image recording and reproducing method is of great value, especially when the method is used for medical diagnosis.
  • a stimulable phosphor is generally employed in the form of a stimulable phosphor sheet (also referred to as a radiation image storage panel, and gene­rally in the form of a sheet of rectangle, square, etc.) which comprises a support and a phosphor layer provided thereon.
  • the phosphor layer comprises a stimulable phos­phor and a binder.
  • a protective film made of a transparent plastic film is provided on a surface of the phosphor layer to protect the phosphor layer from physi­cal and chemical deterioration.
  • the stimulable phosphor sheet does not serve to finally record image information, but only stores the information temporarily to provide the image or the like on an independently prepared final recording medium as described above. Accordingly, the stimulable phosphor sheet can be repeatedly used and such repeated use brings about economical advantage.
  • the repeated used of the stimulable phosphor sheet is particularly advantageous, for instance, in the case that a radiation image information recording and reading de­vice employing the stimulable phosphor sheet is mounted on a traveling station such as a radiographic apparatus-­carryig car to conduct mass radiographic examination in various places. More in detail, it is inconvenient to carry a great number of stimulable phosphor sheets on a traveling station, and there is a limitation on the num­ber of sheets capable of being carried on a car such as a radiographic apparatus-carrying car.
  • the stimulable phosphor sheets are mounted on a radiographic car under such conditions that the stimulable phosphor sheets are repeatedly used; radiation image information of an object is recorded on each stimulable phosphor sheet and read out to obtain image information as a signal; and the obtained signal is transferred to a recording medium having a great record­ing capacity such as a magnetic tape so as to repeatedly use the stimulable phosphor sheet in cycle.
  • a recording medium having a great record­ing capacity such as a magnetic tape
  • the stimulable phosphor sheet can be efficiently and repeatedly used in cycle.
  • the radiation image information recording and reading device in one aspect, is desirably mounted on a traveling station such as a radiographic apparatus-carry­ing car in the form of a united built-in device which comprises an image recording means for exposing a stimu­lable phosphor sheet to a radiation having passed through an object so as to record and store a radiation image in the stimulable phosphor sheet, a read-out means for read­ing out the radiation image stored in the stimulable phosphor sheet, an erasure means for releasing and eras­ ing radiation energy remaining in the stimulable phosphor sheet for the next use of the stimulable phosphor sheet, and a conveyance means for moving the stimulable phosphor sheet in cycle to each of the above-mentioned means.
  • the radiation image information recording and reading device having the above-mentioned constitution have various advantages not only in mounting in the traveling station such as a radiographic apparatus-carrying car but also in setting in hospitals, so that the above device is conve­nient in practical use.
  • the radiation image information recording and read­ing device utilizing the above-mentioned system of re­peatedly and cyclically using the stimulable phosphor sheet is disclosed in Japanese Patent Application No. 58(1983)-66730 filed in the present applicant (assignee).
  • the stimulable phosphor sheet is occasion­ally conveyed vertically or almost vertically for the purpose of making the device compact.
  • a stimulable phosphor sheet has physical deterio­ration such as a scratch on a surface thereof (a phosphor layer-side surface of the sheet), the quality of image or the accuracy of image information provided by the phos­phor sheet tends to decrease markedly. For this reason, it is necessary to select the means for conveying a sti­mulable phosphor sheet with such a careful consideration that the surface of the stimulable phosphor sheet is not damaged. From this viewpoint, as a means for conveying a stimulable phosphor sheet, a belt conveyor made of a soft sheet-material is generally employed.
  • the belt conveyor is suitable for conveying the stimulable phosphor sheet horizontally, it is unsuitable for convey­ing the stimulable phosphor sheet in the direction other than the horizontal direction, particularly in the verti­cal or almost vertical direction. More in detail, in the process for conveying a stimulable phosphor sheet verti­cally or almost vertically using a belt conveyor, it is necessary to arrange a pair of belt conveyors in such a manner that the belt conveyors are in face to face con­tact with each other so as to convey the stimulable phos­phor sheet under the condition that the stimulable phos­phor sheet is sandwiched between that pair of belt con­veyors.
  • said conveying device is complicated in structure, and it is difficult to make the device com­pact. Further, there are other problems such that the surface of the stimulable phosphor sheet tends to suffer scratches when the rate of one belt conveyor is made dif­ferent from that of the other, even if the difference therebetween is very small.
  • the present invention provides a stimulable phosphor sheet preferably employable in the conveying method.
  • the stimulable phosphor sheet of the invention comlustrates, in one aspect, a support, a phosphor layer con­taining a stimulable phosphor and a binder, and a protec­tive film superposed in this order, which is character­ized in that at least both sides of the phosphor layer along the direction to be conveyed are retracted from the corresponding side edges of the support, and both of said sides of the phosphor layer and support are protected by a polymer coating layer or a polymer film.
  • the stimulable phosphor sheet of the invention com strictlyprises, in another aspect, comprises a support, a phos­phor layer containing a stimulable phosphor and a binder, and a protective film superimposed in this order, which is characterized in that at least both sides of the phosphor layer along the direction to be conveyed are retracted from the corresponding side edges of the support, and both of said retracted sides of the phosphor layer are protected by a solid material fixedly placed in the area formed by the retraction of the side of phosphor layer.
  • the stimulable phosphor sheet of the invention in a further aspect, comprises a substrate, a support, a phos­phor layer containing a stimulable phosphor and a binder, and a protective film superposed in this order, which is characterized in that at least both sides of the phosphor layer and support along the direction to be conveyed are retracted from the corresponding side edges of the sub­strate, and both of said sides of the sheet are protected by a polymer coating layer or a polymer film.
  • the stimulable phosphor sheet of the invention in a still further aspect, comprises a substrate, a support, a phosphor layer containing a stimulable phosphor and a binder, and a protective film superposed in this order, which is characterized in that at least both sides of the phosphor layer and support along the direction to be con­veyed are retracted from the corresponding sides edges of the substrate, and both of said retracted sides of the phosphor layer and support are protected by a solid mate­rial fixedly placed in the area formed by the retraction of the side of phosphor layer.
  • the general constitution of the conventional stimu­lable phosphor sheet which is an object of the conveyance in the present invention is well known.
  • the stimulable phosphor sheet is generally employed, as described above, in the form of a sheet comprising a support and a phos­phor layer provided thereon which comprises a stimulable phosphor and a binder.
  • a protective film of a transparent plastic material On the surface of the phosphor layer is provided a protective film of a transparent plastic material, because the phosphor layer is easily affected by physical shocks.
  • Fig. 1 schematically illustrates the constitution of the conventional stimulable phosphor sheet.
  • the stimulable phosphor sheet comprises a support 11, a phosphor layer 12 and a protective film 13.
  • the support material include plastic films such as films of cellulose acetate and polyethylene tere­phthalate, metal sheets such as aluminum foil, ordinary papers, baryta paper, and resin-coated papers.
  • On the surface of the support may be provided other functional layers such as an adhesive layer, a light-reflecting layer and a light-absorbing layer.
  • the phosphor layer essentially comprises stimulable phosphor particles dispersed in a binder.
  • the stimulable phos­phor employed in the invention can be selected from the known stimulable phosphors.
  • Examples of the known stimu­lable phosphor include a divalent europium activated alkaline earth metal fluorohalide phosphor (M II FX:Eu2+, 6in which M II is at least one alkaline earth metal selected from the group consisting of Mg, Ca and Ba; and X is at least one halogen selected from the group con­sisting of Cl, Br, and I); an europium and samarium activated strontium sulfide phosphide (SrS:Eu,Sm); an europium and samarium activated lanthanum oxysulfide phosphor (La2O2S:Eu,Sm); an europium activated barium aluminate phosphor (M II FX:Eu2
  • a transparent protective film is then provided on the surface of the phosphor layer to physically and che­mically protect the phosphor layer.
  • Examples of the material employable for the preparation of the transpar­ent protective film include cellulose acetate, polymethyl methacrylate, polyethylene terephthalate and polyethyl­ene.
  • the transparent protective film generally has a thickness within the range of approx. 0.1 - 20 ⁇ m.
  • the stimulable phosphor sheet can be colored with an appropriate colorant as described in U.S. Patent No. 4,394,581 and U.S. Patent Application No. 326,642.
  • white powder may be dispersed in the phosphor layer as described in U.S. Patent No. 4,350,893.
  • FIGs. 2 and 3 [(1) and (2)] are schematic views of the conveying device which are preferably employed in the method of conveying a stimulable phosphor sheet according to the present invention.
  • the method of conveying a sti­mulable phosphor sheet of the invention is described hereinafter, by referring to an embodiment employing the conveying devices shown in Figs. 2 and 3.
  • the conveying device preferably employed in the method of conveying a stimulable phosphor sheet according to the invention is a device basically comprising guiding members 22 and 23 (22a, 23a, 22b, 23b, ...)[32 and 33 (32a, 33a, 32b, 33b, ...)] for keeping both sides of a stimulable phosphor sheet 21[31], and two or more driving members 24 (24a, 24b, 24c, ...)[34 (34a, 34b, 34c, ...)] arranged along the conveying direction (direction along the indicated arrow) for providing a driving force on both surfaces of the stimulable phosphor sheet 21[31], in which the distance between said two driving members which adjoin each other along the conveying direction (e.g., 24b and 24c)[e.g., 34b and 34c] is smaller than the length of the stimulable phosphor sheet measured in the conveying direction.
  • the guiding members of the device keep the stimulable phosphor sheet at the both sides thereof.
  • the guiding members prevent the sheet from bending in the vertical direction against the sur­face plane of the sheet (namely, flexure) and from moving laterally.
  • the guiding member is, for instance, U-shaped in the section. Accordingly, the guiding member is not necessarily in contact with the stimulable phosphor sheet to keep it.
  • the surface of the sheet on which the radiation image is stored and recorded is kept being from contact with members of the device, since the stimulable phosphor sheet 21 is kept by the guiding members 22 and 23[32 and 33] at both sides of the sheet which do not participate in storing and recording the radiation image.
  • the shape of the guiding member is not restricted to one as shown in Figs. 2 and 3, and any shape can be optionally used, as far as the guiding mem­ber has the above-described functions. Further, there is no specific limitation on the material of the guiding member.
  • the guiding member is not necessarily employed in the form of individually separated member as shown in Figs. 2 and 3, and a united guiding member, for instance, a member in which one guiding member 22[32] is combined with another guiding member 23[33] on the back surface-­side of the stimulable phosphor sheet 21[31] (support side-surface of the sheet) in Figs. 2 and 3, can be em­ployed with appropriate selection of the driving members as described hereinafter.
  • the driving members of the conveying device apply a driving force to the surface(s) of the stimulable phosphor sheet, and make it possible to convey (i.e., move) the stimulable phosphor sheet in a given direction.
  • the driving members comprises at least two members, and the distance (l) between the two driving members which are adjacent to each other along the con­veying direction is smaller than the length (m) of the stimulable phosphor sheet in the conveying direction. Two or more driving members having the above-described constitution can convey the stimulable phosphor sheet wtih little error.
  • the driving member for providing a driving force on the surfaces of the stimu­lable phosphor sheet are a driving member comprising a pair of rollers as shown in Figs. 2 and 3.
  • the length of the roller is preferably as almost the same as width of the stimulable phosphor sheet (length measured in the lateral direction, but the length of the roller is not restricted to the above-mentioned length.
  • the roller may comprise a plurality of short rollers.
  • the driving mem­ber may not consist of a pair of rollers, and for exam­ple, a driving member comprising a driving roller and a fixed supporting member which is associated with the roller is employable. Further, other driving members than the above-mentioned rollers can be employed in the invention.
  • the surface of the driving member especially the surface thereof which are to be in contact with the sur­face of the stimulable phosphor sheet, are preferably formed by a soft and elastic material such as rubber.
  • the driving force is generally supplied to the driv­ing members 24 (24a, 24b, 24c, ...)[24 (34a, 34b, 34c, ...)] from a means 26[37] such as a motor through a driv­ing power-transmitting means 25[36] such as a chain and a belt. This driving force is then supplied to the stimu­lable phosphor sheet 21[31] under rotation via surfaces thereof.
  • the guiding member and driving members are supported by an appropriate means such as a fixing means or a sup­porting means so as to fulfill each function in the area.
  • the stimulable phosphor sheet can be easily and reliably conveyed in di­rections other than horizontal direction, particularly in the vertical or almost vertical direction (upward and/or downward conveying), without damaging the surfaces of the sheet.
  • the vertical or almost vertical conveyance giving no damage to the surface of stimulable phosphor sheet has been hardly attained in the conventional method using a belt conveyor.
  • the method of conveying the stimulable phosphor sheet of the invention can be effectively used not only in the conveyance of a stimulable phosphor sheet in the vertical or almost vertical direction but also in the conveyance with alteration of the direction (e.g. L-­turn and U-turn).
  • the method can be effectively employed in the conveyance of a stimu­lable phosphor sheet in the horizontal direction.
  • a belt conveyor is conventionally used in the conveyance thereof in such direction.
  • the method can be employed in combination with a con­ventional method using a belt conveyor in conveying the stimulable phosphor sheet in a radiation image informa­tion recording and reading device.
  • the device illustrated in the Fig. 3 is further pro­vided with a guiding means 35 (35a, 35b, 35c, ...) for guiding the front end of the stimulable phosphor sheet.
  • the guiding means 35 is arranged in the vicinity of the driving means 34, for instance, just in front of the driving means 34.
  • the guiding means 35 serves to smooth­ly engage the coming stimulable phosphor sheet with the driving means.
  • the stimulable phosphor sheet essentially comprising a support and a phosphor layer is considerably rigid, flexure may occasionally happen on most of the conventional stimulable phosphor sheet used in a relatively thin plate having a width of approx. 30 - 60 cm at the front end.
  • the guiding means 35 for guiding the front end of the stimulable phosphor sheet is very effective to enable smooth engagement bet­ween the stimulable phosphor sheet and the driving means.
  • the front end-guiding means can be in the form of a roller arranged in the vicinity of the driving means.
  • the front end-guiding means can be arranged merely on one side of the conveyor.
  • the front end-guiding means is generally made of plastic material, metal, or a composite material of plastic material and metal.
  • the method is suitable for conveying a stimulable phosphor sheet in the vertical or almost vertical direction. Accordingly, from the viewpoint of making the device compact, the method can be preferably and practically employed in the radiation image information recording and reading device in which the stimulable phosphor sheet is required to be conveyed in such direction so as to be repeatedly used in cycle.
  • Both sides of the stimulable phosphor sheet to be employed in the conveying method are preferably formed or processed to have enhanced protec­tion against the physical (mechanical) shock given to these sides by the side-guiding means in the course of the conveying stage, as well as enhanced protection against chemical deterioration.
  • Fig. 4a in which the support, phosphor layer and protective layer are indicated by 41, 42 and 43, respectively.
  • a polymer coating layer as illustrated in Fig. 4b in which the support, phosphor layer, protective layer and polymer coating layer are indicated by 41, 42, 43 and 44, respec­tively.
  • a polymer film as illustrated in Fig. 4c in which the support, phosphor layer, protective layer and polymer film are indicated by 41, 42, 43 and 45, respectively.
  • the polymer film 45 is fixed to the side by an adhesive layer 46.
  • a polymer coating layer as illustrated in Fig. 5a in which the support, phosphor layer, protec­tive layer and polymer coating layer are indicated by 51, 52, 53 and 54, respectively.
  • the side edges on the bot­tom surface of the support can be chamferred, as illus­trated in Fig. 5b.
  • a polymer film as illustrated in Fig. 6a in which the support, phosphor layer, protective layer and polymer film are indicated by 61, 62, 63 and 65, res­pectively.
  • the polymer film 65 is fixed to the side by an adhesive layer 64.
  • the side edges on the bottom sur­face of the support can be chamferred, as illustrated in Fig. 6b.
  • a solid material fixedly placed in the area formed by the retraction of the phosphor layer, as illu­strated in Fig. 7a in which the support, phosphor layer, protective layer and solid material are indicated by 71, 72, 73 and 74, respectively.
  • the side edges on the bot­tom surface of the support can be chamferred, as illus­trated in Fig. 7b.
  • a stimulable phosphor sheet may comprise a substrate, a support, a phosphor layer and a protective film superposed in this order, in which at least both sides of the phospher layer and support along the direction to be conveyed are retracted from the cor­responding side edges of the substrate, and both of said sides of the sheet are protected by a polymer coating layer.
  • Fig. 8a the substrate, support, phosphor layer, protective layer and polymer coating layer are indicated by 81, 82, 83, 84, and 85, respectively.
  • the protection can be made by means of an adhesive layer 86 and a polymer film 87, as illustrated in Fig. 8b.
  • the protection can be made by means of a solid material 88, as illustrated in Fig. 8c.
  • the substrate can be pro­duced from any material employable for the production of the support.
  • the above-described protections can be given to the front and/or rear ends of the stimulable phosphor sheets, to protect the phosphor layer against physical shocks, as well as to keep the phosphor layer from chemical deterio­ration.
  • the front and/or rear ends can be chamferred on the bottom surface.
  • the sides of the protruded support or substrate can effectively keep the phosphor layer from physical shock, friction, and the like applied to the sides of the stimulable phosphor sheet.
  • the polymer coating layer can be provided to the side of the stimulable phosphor sheet, for instance, by applying a solution of a film-forming polymer in a sol­vent to the side and then drying to remove the solvent, or applying reactive material(s) to form a polymer mate­rial to the side and causing the reaction to form in-situ the polymer coating film.
  • a film-forming polymer employed in the above process.
  • a polyurethane-acrylic resin and a mixture of an acrylic resin and vinyl chloride-vinyl acetate copolymer (which is discussed in Japanese Patent Provisional Publication 58(1983)-68746) can be used.
  • the polymer film can be produced from the same mate­rial as that employed for the production of the protec­tive material. For instance, cellulose acetate, poly­methyl methacrylate, polyethylene terephthalate, and polyethylene can be mentioned.
  • the polymer film employed for this purpose may be transparent or not.
  • the film can be fixed to the side, for instance, by an adhesive or another sticky material.
  • the solid materi­al to be arranged adjacent to the side of the phosphor layer.
  • a solid polymer material and a metal can be employed.
  • the solid polymer material can be that mentioned hereinbefore as the material for production of the surface protective film or a polmer film for pro­tection of the side.
  • the solid material can be provided adjacent to the side of the phosphor layer by placing it. Otherwise, a polymer material solution can be introduced in the area and the solid polymer can be formed in-situ after removal of the solvent. Otherwise, a solid polymer material can be formed in-situ by a reaction of reactive compound(s).
  • the solid material can be fixed to the side of the phosphor layer and/or the upper surface of the support or substrate.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Conversion Of X-Rays Into Visible Images (AREA)
  • Radiography Using Non-Light Waves (AREA)
EP19870117493 1984-04-06 1985-04-09 Feuille de matière luminescente stimulable Expired - Lifetime EP0285702B1 (fr)

Applications Claiming Priority (14)

Application Number Priority Date Filing Date Title
JP69583/84 1984-04-06
JP69586/84 1984-04-06
JP6958384A JPS60213646A (ja) 1984-04-06 1984-04-06 蓄積性蛍光体シ−トの搬送方法および搬送装置
JP69588/84 1984-04-06
JP6958584A JPS60211398A (ja) 1984-04-06 1984-04-06 蓄積性蛍光体シートの搬送方法
JP69584/84 1984-04-06
JP69585/84 1984-04-06
JP69587/84 1984-04-06
JP6958784A JPS60211400A (ja) 1984-04-06 1984-04-06 蓄積性蛍光体シ−トとその搬送方法
JP6958684A JPS60211399A (ja) 1984-04-06 1984-04-06 蓄積性蛍光体シートの搬送方法
JP6958884A JPS60213897A (ja) 1984-04-06 1984-04-06 蓄積性蛍光体シ−トとその搬送方法
JP6958484A JPS60212754A (ja) 1984-04-06 1984-04-06 蓄積性蛍光体シ−トの搬送方法
JP180124/84 1984-08-29
JP18012484A JPS6157941A (ja) 1984-08-29 1984-08-29 蓄積性螢光体シ−トの搬送方法および搬送装置

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP85104263.0 Division 1985-04-09

Publications (2)

Publication Number Publication Date
EP0285702A1 true EP0285702A1 (fr) 1988-10-12
EP0285702B1 EP0285702B1 (fr) 1993-11-03

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP85104263A Expired - Lifetime EP0159613B1 (fr) 1984-04-06 1985-04-09 Appareil pour le transport d une couche luminescente excitable
EP19870117493 Expired - Lifetime EP0285702B1 (fr) 1984-04-06 1985-04-09 Feuille de matière luminescente stimulable

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP85104263A Expired - Lifetime EP0159613B1 (fr) 1984-04-06 1985-04-09 Appareil pour le transport d une couche luminescente excitable

Country Status (3)

Country Link
EP (2) EP0159613B1 (fr)
CA (1) CA1270407A (fr)
DE (3) DE3586636T2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0503702B1 (fr) * 1991-03-08 1995-05-24 Agfa-Gevaert N.V. Ecran radiographique muni d'une couche renforçant les bords
EP0576054B1 (fr) * 1992-06-16 1996-03-20 Agfa-Gevaert N.V. Ecran radiographique
US6534779B1 (en) * 1999-02-12 2003-03-18 Fuji Photo Film Co., Ltd. Conveyance of stimulable phosphor sheet

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2266901A1 (fr) * 1974-04-08 1975-10-31 Imagex Inc
EP0095188A1 (fr) * 1982-05-24 1983-11-30 Fuji Photo Film Co., Ltd. Panneau de mémoire pour une image de radiation
EP0158959A1 (fr) * 1984-04-06 1985-10-23 Fuji Photo Film Co., Ltd. Couche luminescente excitable

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE444581C (de) 1928-03-22 Johannes Dietrich Foerderanlage fuer flache Foerdergueter, wie Zettel, Briefe u. dgl.
JPS5944333B2 (ja) 1978-07-12 1984-10-29 富士写真フイルム株式会社 放射線像変換方法
US4316667A (en) * 1980-02-19 1982-02-23 International Business Machines Corporation Copier and recirculating document feeder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2266901A1 (fr) * 1974-04-08 1975-10-31 Imagex Inc
EP0095188A1 (fr) * 1982-05-24 1983-11-30 Fuji Photo Film Co., Ltd. Panneau de mémoire pour une image de radiation
EP0158959A1 (fr) * 1984-04-06 1985-10-23 Fuji Photo Film Co., Ltd. Couche luminescente excitable
US4684592A (en) * 1984-04-06 1987-08-04 Fuji Photo Film Co., Ltd. Stimulable phosphor sheet

Also Published As

Publication number Publication date
DE3586636D1 (de) 1992-10-22
EP0159613B1 (fr) 1992-09-16
DE3588045T2 (de) 1995-12-21
DE3586636T2 (de) 1993-01-07
EP0159613A1 (fr) 1985-10-30
DE3587647D1 (de) 1993-12-09
EP0285702B1 (fr) 1993-11-03
DE3587647T2 (de) 1994-03-24
CA1270407A (fr) 1990-06-19
DE3588045D1 (de) 1995-08-31

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