EP0175578A2 - Radiographische Bildspeicherung und Verfahren zur Durchführung derselben - Google Patents

Radiographische Bildspeicherung und Verfahren zur Durchführung derselben Download PDF

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Publication number
EP0175578A2
EP0175578A2 EP19850306650 EP85306650A EP0175578A2 EP 0175578 A2 EP0175578 A2 EP 0175578A2 EP 19850306650 EP19850306650 EP 19850306650 EP 85306650 A EP85306650 A EP 85306650A EP 0175578 A2 EP0175578 A2 EP 0175578A2
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EP
European Patent Office
Prior art keywords
stimulable phosphor
image storage
radiographic image
layer
stimulable
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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
EP19850306650
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English (en)
French (fr)
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EP0175578B1 (de
EP0175578A3 (en
Inventor
Hisanori Tsuchino
Akiko Kano
Koji Amitani
Fumio Shimada
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Konica Minolta Inc
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Konica Minolta Inc
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Publication date
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Publication of EP0175578A2 publication Critical patent/EP0175578A2/de
Publication of EP0175578A3 publication Critical patent/EP0175578A3/en
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Publication of EP0175578B1 publication Critical patent/EP0175578B1/de
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    • 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

  • This invention relates to a radiographic image storage panel, and especially to a radiographic image storage panel which provides a radiographic image having a high sharpness.
  • Such a radiographic image as an X-ray image has been widely used for diagnosis of diseases and the like.
  • an X-ray radiophoto-graphy wherein a phosphor layer (a fluorescent screen) is irradiated with X-rays which are transmitted by a subject to have visible rays produced, and a silver salt-coated photographic film is irradiated with said produced visible rays and then developed as in the common photographic way, is applied.
  • a phosphor layer a fluorescent screen
  • radioactive rays which are transmitted by a subject are made absorbed by a fluorescent screen, then said screen is made excited by light or thermal energy or the like so that said screen may emit as fluorecence radiation energy which is absorbed and accumulated thereby, and then said emitted fluorescence is detected to make an image.
  • methods of radiographic image storage to use a stimulable phosphor and to use visible or infrared rays as stimulable excitation rays have been proposed by U.S. Patent No. 3,859,527 and Japanese Patent O.P.I. Publication No. 12144/1980.
  • the layer containing a stimulable phosphor is formed on a support.
  • This layer is irradiated with radioactive rays which are transmitted by the subject to accumulate radiation energy in accordance with transmission rate of every site of the subject so as to build a latent image, and then scanned with stimulable excitation rays to make accumulated radiation energy emit site by site.
  • the emitted radiation energy is converted to light, and then the image is made according to optical signals based on variation of intensity of the light. This final image is allowed either to be regenerated as a hard copy, or to be regenerated on CRT.
  • radiographic image storage panel which has a layer containing a stimulable phosphor
  • such a radiographic image storage panel which has a layer containing a stimulable phosphor
  • a radiographic image storage panel which has a layer containing a stimulable phosphor
  • the packing density-of the stimulable phosphor is necessarily low as 50% for packing ratio, and consequently requires the layer containing the stimulable phosphor to be much thick to secure a sufficiently high radiosensitivity as shown in Fig. 3.
  • the radiosensitivity linearly rises until the thickness reaches about 350 p m, but levels off over about 450 ⁇ m of thickness.
  • Such a leveling- off of the radiosensitivity is caused by missing the emission of the stimulable fluoresence from the inside of the layer containing the stimulable phosphor due to the dispering of the stimulable fluorescence among stimulable phosphor particles.
  • the image graininess according to the above radiographic image storage methods definitely depends on the locational fluctuations of number of radiation quantums (quantum mottles), and/or structural disturbances of the layer containing the stimulable phosphor of the radiographic image storage panel (structure mottles), the thinning of said layer causes the increase in quantum mottles through the decrease in number of radioactive quantums absorbed in said layer, and/or the decrease in structure mottles through the actuali- zation of structural disturbances, resulting in the deterioration of the image quality. Therefore, it is necessary to make said layer thicker as possible for the requirement of improving of the image graininess.
  • the image sharpness in the conventional radiography depends on the Diffusion of the instantaneous fluorescence (the fluoresence on irradiating) by the phosphor in the fluorescent screen
  • the image sharpness in the above radiographic image storage method using the stimulable phosphor does not depend on the Diffusion of the stimulable fluorescence by the stimulable phosphor in the radiographic image storage panel, but depends on the extension of the stimulable excitation rays in said panel. The reason for this is as follows.
  • the radiographic image information accumulated in the panel is taken out thereof on a time series basis, the stimulable fluorescence by the stimulable excitation rays irradiated at a certain time (t.) is desirably recorded as the output from a certain pixed (xi, yi) on said panel which is irradiated with said stimulable excitation rays at that time (ti).
  • the invention is presented with considerations of the above drawbacks and contradictions in the prior arts of radiographic image storage panel using some stimulable phosphor.
  • the first object of the invention is to provide a radiographic image storage panel having an improved radiosensitivity and giving a highly sharp image.
  • the second object of the invention is to provide a radiographic image storage panel giving an image high in sharpness as well as in graininess.
  • the third object of the invention is to provide a process for preparing such a radiographic image storage panel as above.
  • a radiographic image storage panel having at least one layer containing a stimulable phosphor
  • the above objects of the invention are attained by a radiographic image storage panel which is characterized by that said layer containing a stimulable phosphor has a stimulable phosphor layer part without binder; a radiographic image storage panel which is characterized by that said stimulable phosphor layer part without binder is formed in said layer containing a stimulable phosphor; and, in addition, a process for preparing said radiographic image storage panel.
  • the stimulable phosphor penetrates into such a layer with binder as the support, its undercoating layer or the protective layer, or that the binder in the undercoating or protective layer intrudes into the layer containing a stimulable phosphor.
  • the description is given hereinafter regarding such mixed layers as nonproduced.
  • the packing density ratio and the sensitivity to X-rays of the layer containing a stimulable phosphor are improved because of the absence of binder therein.
  • the absence of binder causes also the directivity of the layer containing a stimulable phosphor to improve, resulting in both the improvement of sensitivity through the detectability of stimulable fluorescence from the inside of the layer containing a stimulable phosphor, and the improvement of the image sharpness through the reduction of diffusion of the stimulable exciting emission.
  • the absence of binder in the layer containing a stimulable phosphor of the inventaion causes the packing density ratio'of the stimulable phosphor to improve, resulting in the improving of image graininess through the reduction of both quantum mottles by radioactive rays, and structural mottles of the layer containing a stimulable phosphor.
  • the invention has very great effects, and so is industrially useful.
  • Fig. 1 illustrates the relation between the layer thickness or the quantity adhered and the relative radiosensitivity in the radiographic image storage panel of the invention.
  • Fig. 2 (a) and (b) show samples of support used in the invention;
  • Figs. 2 (c) and (d) show samples of sectional view of said radiographic image storage panel where the layer containing a stimulable phosphor is provided onto said support.
  • Fig. 3 illustrates the relation between the layer thickness or the quantity adhered and the relative radiosensitivity in the conventional radiographic image storage panel.
  • Fig. 4 illustrates the relation between the layer thickness and the modulation transfer function (MTF) at 2 cycles/mmof spatial frequency in the conventional radiographic image storage panel.
  • Fig. 5 is a schematic drawing of the radiographic image storage method used in the invention.
  • said stimulable phosphor is referred to the phosphor which, after the initial irradiation of light or high-energy radioactive rays, emits the stimulable luminescence corresponding to the dose of the initial irradiation of light or high-enegy, radioactive rays, being induced by some optical, thermal,. mechanical, chemical or electrical stimulation (that is, stimulable excitation), and, preferably from the practical viewpoint, is the phosphor which does so induced by stimulable excitation rays with 500 nm or longer wavelength.
  • a stimulable phosphor used in the radiophotographic image storage panel of the invention each of the following phosphors is useful for example:
  • alkali halide phosphors are especially preferable because their easy formability of a layer containing a stimulable phosphor by means of vacuum evaporation, sputtering or the like.
  • the stimulable phosphors used in the radiographic image storage panel of the invention are not limited to above-mentioned phosphors, but include any phosphor if it can exhibit stimulable luminescence on irradiation with stimulable excitation rays after the radiation of radioactive rays.
  • stimulable phosphor is lamellarly deposited without binder on a support to form a layer containing the stimulable phosphor, resulting in the formation of the radiographic image storage panel of the invention.
  • the radiographic image storage panel of the invention is also allowed to be a group of stimulable phosphor layers which are composed of two or more stimulable phosphor layers containing at least one among above-mentioned stimulable phosphors. Stimulable phosphor which are contained by respective stimulable phosphor layers are allowed to be the same of different from each other.
  • this vacuum evaporating method it is also allowed to have said layer containing a stimulable phosphor formed by repeating plural number of vaporizing procedures. In addition, it is also allowed to conduct co-vacuum evaporation using plural number of resistive heaters or electron beams.
  • the layer containing stimulable phosphor is provided with a protective layer on its side opposite to said support if necessary, to complete the radopgraphic image storage panel of the invention.
  • a protective layer on its side opposite to said support if necessary, to complete the radopgraphic image storage panel of the invention.
  • it is allowed to have the layer containing a stimulable phosphor formed on a protective layer first, and then to provide it with a support.
  • this vacuum evaporating method it is also allowed to cool or heat the layer to be deposited onto, said support or protective layer, during vaporizing if necessary, or to heat-treat the deposited layer after vaporizing.
  • the second method is sputtering technique.
  • a sputtering apparatus in which support has been placed is evacuated to a level of 10- 6 Torr or so, then such an inert gas as Ar or Ne is introduced into said apparatus to raise the inner pressure up to a level of 10- 3 Torr or so.
  • at least one stimulable phosphor afore-mentioned as target is sputtered to have a layer of said phosphor with a desired thickness deposited on the surface of said support.
  • this sputtering method it is also allowed to have said layer containing a stimulable phosphor formed by repeating plural number of sputtering procedures. It is also allowed to have a layer containing a stimulable phosphor formed by sputtering, concurrently or in order, plural number of targets comprising different stimulable phosphors respectively.
  • the layer containing a stimulable phosphor is provided with a protective layer on its side opposite to said support if necessary, to complete the radiographic image panel of the invention.
  • a protective layer on its side opposite to said support if necessary, to complete the radiographic image panel of the invention.
  • this sputtering method it is also possible to employ plural number of stimulable phosphor ' s raw materials as targets, and to sputter them concurrently or in order to synthesize the intended stimulable phosphor on the support, and to have a layer containing the stimulable phosphors formed concurrently.
  • this sputterling method it is also allowed to apply a reactive sputtering technique if necessary by introducing such a gas as 0 2 or H 2 into the apparatus. Furthermore, it is allowed to cool or heat the layer to be deposited onto, said support or protective layer, during sputtering if necessary. It is also allowed to heat-treat the deposited layer after sputtering.
  • the third method is chemical vapor deposition (CVD).
  • CVD chemical vapor deposition
  • the fourth method is spraying technique.
  • the layer containing a stimulable phosphor without binder is obtained by spraying stimulable phosphor powder onto a tacky layer of the support.
  • the fifth method is a baking method.
  • an organic binder containing stimulable phosphor powder dispersed therein is coated on a support which is then baked and thereby the organic binder is volatilized, and thus a stimulable phosphor layer without binder is obtained.
  • the thickness of the layer containing a stimulable phosphor of the radiographic image storage panel of the invention is varied according to the radiosensitivity of the intended radiographic image storage panel, and the type of the stimulable phosphor, but is preferably selected from a range from 3 0 A m to 1000 ⁇ m, especially from 50 ⁇ m to 800 pm.
  • the thickness of the stimulable phosphor layer is less than 30 ⁇ m, the radiation absorptance thereof deteriorates extremely, and thereby, the radiation sensitivity is lowered and the graininess of an image therefrom is deteriorated.
  • the stimulable phosphor layer is caused to be transparent, and thereby, the two dimentional spreading of stimulable excitation rays in the stimulable phosphor layer is extremely increased, which results in the tendency wherein an image sharpness is deteriorated.
  • Fig. 1 illustrates the relation between the thickness (or the corresponding quantity adhered), and the radiosensitivity of the stimulable phosphor in the radiographic image storage panel of the invention. Since the layer containing a stimulable phosphor of the radiographic image storage panel of the invention does not contain any binder, its quantity adhered of stimulable phosphor (or its packing ratio) amounts to about 2 times comparing to that of the conventional radiographic image storage panel, as definitely seen in comparison with Figs. 3 and 4. Therefore, according to the invention, the improvement of the absorption rate of radiation per unit thickness of layer containing a stimulable phosphor not only produces a radiosensitivity much higher compared to the conventional radiographic image storage panel, but also causes a certain improvement of the graininess of image.
  • the layer of a stimulable phosphor of the radiographic image storage panel of the invention does not contain any binder, it has the high directivity of stimulable excitation rays and stimulable luminescence comparing to the conventional radiographic image storage panel, making it permissive to thicken said panel.
  • the layer containing a stimulable phosphor of the radiographic image storage panel of the invention since the layer containing a stimulable phosphor of the radiographic image storage panel of the invention has a good directivity, it causes the dispersion of stimulable excitation rays in the layer containing a stimulus phosphor to reduce, resulting in a remarkable improvement of image sharpness.
  • the especially preferable meterial of support is, for example, such plastic film as cellulose acetate, polyester, polyethylene terephthalate, polyamide, polyimide, cellulose triacetate or polycarbonate film,or such metallic sheet as aluminum, steel or copper sheet.
  • a matting method is allowed to be either a method for making a rugged surface as shown in Fig. 2(a) or a method for the structure with separately spread small tile-like plates as shown in Fig. 2(b), in addition to a method wherein a matting agent is used.
  • Such an uneven surface as shown in Fig. 2(a) further improves the image sharpness, because the layer containing a stimulable phosphor thereon is finely divided by its uneveness as shown Fig. 2(c).
  • the layer containing a stimulable phosphor also further improves the image sharpness, because the layer containing a stimulable phosphor is deposited thereon sustaining substantially the irregurality of the surface of the support, and because, consequently, the layer containing a stimulable phosphor is composed of a number of small pile- like blocks separated each another by cracks as shown in Fig. 2(d).
  • the support of the invention is allowed to be preliminarily provided with an undercoating layer on its interface with the layer containing a stimulable phosphor for the purpose of improving its adhesiveness to said layer.
  • the thickness of the support is selected according to the nature of its material, but generally ranges from 100 um to 1500 um, and further preferable from 100 um to 1000 um in the handling viewpoint.
  • the layer containing a stimulable phosphor is provided with a protective layer on its side opposite to said support for the purpose of protecting said layer containing a stimulable phosphor physically or chemically.
  • a protected layer is provided by coating its applying liquid directly on said layer containing a stimulable phosphor, or by making separately and sticking itself thereon.
  • the material for the protectivel layer there are used such usual protective material as cellulose acetate, nitrocellulose, polymethyl methacrylate, polyvinyl butyral, polyvinyl formal, polycarbonate, polyester, polyethylene terephthalate, polyethylene, polyvinylidene chloride and nylon.
  • the thickness of the protective layer is preferably 1 pm to 40 ⁇ m or so.
  • the radiographic image storage panel of the invention provides very good sharpness, graininess and sensitivity when used by the radiographic image storage method roughly illustrated in Fig. 5.
  • 55 is a radiation generating device ; 52 is a subject ; 53 is a radiographic image storage panel of the invention ; 54 is a source of stimulable excitation rays ; 55 is a photoelectric conversion device which detects the stimulable fluorescence emitted from said panel 53 ; 56 is a device which regenerates detected signals as an image ; 57 is a displaying device which displays said regenerated image ; and 58 is a screen which separates stimulable fluoresence from stimulable excitation rays, and transmits the only stimulable fluorescence.
  • Any of 53 to 55 is not limitted to the above description so long as it serves to regenerate the optical information as any form.
  • radioactive rays generated by the radiation generating device 51 is transmitted by the subject 52, and thrown into the radiographic image storage panel 53.
  • the thrown radioactive rays are absorbed by the layer containing a stimulable phosphor of said panel 53, and their energy is accumulated therein, resulting in the formation of an accumulative image of radiation transmission.
  • the stimulable fluorescence is emitted by exciting this accumulative image by stimulable excitation rays from the source 54. Since the layer containing a stimulable phosphor does not contain binder, and so has highly directivity, any diffusion of the stimulable excitation rays in the layer containing a stimulable phosphor on scanning said layer with said rays is suppressed.
  • the radiation transmission image of the subject 52 can be observed by photoelectrically converting the optical signals using the device 55 such as a photomultiplying tube, and by regenerating as an image using the device 56 and displaying using the device 57.
  • the alkaline halide stimulable phosphor is vaporized until the thickness of a stimulable phosphor layer formed on the polyethylene terephthalate film reaches 300jum to obtain a radiographic image storage panel A of the invention.
  • the obtained radiographic image storage panel A is irradiated by 10m R of X-rays from a lamp voltage of 80 KVp, and subsequently stimulably excited by He-Ne laser beam of 633nm.
  • the stimulable fluorescence emitted by the layer containing the stimulable phosphor is photoelectrically converted by a light detector is photomultiplying tube), and the obtained signals are regenerated as an image using an image regenerator, and recorded on a silver salt film.
  • the sensitivity of the radiographic image storage panel A to X-rays is examined with the size of signal, and the modulation transfer function (MTF) and the graininess of the image are examined for the obtained image. The results are shown in Table 1.
  • the sensitivity to X-rays is represented by a relative index against 100 for the radiographic image storage panel A of the invention.
  • the MTF is referred to the value at a spatial frequency of 2 cycles per mm.
  • the grani- ness is evaluated as good, moderate and poor, respectively. °Example 2
  • Procedures of Example 1 are repeated, except for, instead of 300 ⁇ m, 150 ⁇ m of the thinckness of said layer, to obtain the radiographic image storage panel B of the invention.
  • the obtained radiographic image storage panel B is evaluated in the same way as in Example 1. The results are shown in Table 1.
  • Procedures of Example 1 are repeated, except for using, instead of the film of Example 1 as a support, black polyethylene terephtholate film whose surface is provided with a jagged pattern, to obtain the radiographic image storage panel C of the invention.
  • the jagged pattern is constituted by the alternation of grid-like 10 ⁇ m-wide and 100 ⁇ m - high projecting parts, and 100 ⁇ m-by-100 ⁇ m depressed parts.
  • the obtained radiographic image storage panel C is evaluated in the same way as in Example 1.
  • Example 1 Procedures of Example 1 are repeated to obtain the radiographic image storage panel D of the invention.
  • a separated tile-pattern structure is used instead of the film of Example 1 as support.
  • This structure is made by first treating the surface of a 0.5 mm-thick aluminum sheet with anode oxidation, and treating the sheet to seal holes. Then the aluminum sheet is heat-treated over 200°C to generate a number of cracks throughout the aluminum oxide layer.
  • the structure having a number of tile-like small chips separated one another by said cracks throughout its surface is obtained as a support.
  • the obtained radiographic image storage panel D is evaluated in the same way as in Example 1. The results are shown in Table 1.
  • alkaline halide stimulable phosphor (0.9 RbBr 0.1 CsF:0.01 Tl) and 1 wt. part of polyvinyl butyral resin are added to and dispersed into 5 wt. parts of cyclohexanone. This dispersion is evenly applied onto a 300 ⁇ m-thick black polyethylene terephthalate film horizontally held as a support, and air-dried to form a 300 ⁇ m-thick layer containing the stimulable phosphor,
  • the obtained radiographic image storage panel as the control P is evaluated in the same way as in Example 1.
  • Procedures of Control 2 are repeated, except for, instead of 300 ⁇ m, 150 ⁇ m of the thickness of the layer containing the stimulable phosphor.
  • the obtained radiographic image storage panel as the control Q is evaluated in the same way as in Example 1. The results are shown in Table 1.
  • the radiographic image storage panels A to D have roughly twice the sensitivity to X-rays, and have better image graininess compared to the respective Controls P and Q being the same in thickness of the layer containing a stimulable phosphor.
  • radiographic image storage panels A to D are higher in sensitivity to X-rays as above, they are also better in image sharpness compared to Control P and Q, respectively.
  • the layer containing a stimulable phosphor of panel C is finely divided into minute projecting and depressed parts; that layer of panel D is finely dividened by the effect of a number of fine cracks provided on the surface of its support. Consequently, it becomes possible to further reduce dispersing of the stimulable excitation rays in the layer containing a stimulable phosphor, resulting in the further improvement of the image sharpness.
  • a support 300 p m-thick black polyethylene terephthalate film is placed in a sputtering apparatus. Then as a target of sputtering, alkaline halide stimulable phosphor (0.95 RbBr ⁇ 0.05 CsF: 0.005 Tl) is placed in the sputtering apparatus, and subsequently the apparatus is evacuated to 1 x 10- 6 Torr. Sputtering is conducted while introducing Ar gas as a sputter gas, until the thickness of the layer containing the stimulable phosphor depositing on said polyethylene terephthalate film reaches 300 ⁇ m to obtain the radiographic image storage panel E of the invention.
  • alkaline halide stimulable phosphor (0.95 RbBr ⁇ 0.05 CsF: 0.005 Tl) is placed in the sputtering apparatus, and subsequently the apparatus is evacuated to 1 x 10- 6 Torr.
  • Sputtering is conducted while introducing Ar gas as a sputter gas, until the
  • the radiographic image storage panel E by sputtering exhibits good sensitivity to X-rays, graininess as well as sharpness, similarly to panels A to D by vacuum sputtering.

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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)
  • Luminescent Compositions (AREA)
EP19850306650 1984-09-18 1985-09-18 Radiographische Bildspeicherung und Verfahren zur Durchführung derselben Expired - Lifetime EP0175578B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP19636584A JPH0677079B2 (ja) 1984-09-18 1984-09-18 放射線画像情報読取装置
JP196365/84 1984-09-18

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EP0175578A2 true EP0175578A2 (de) 1986-03-26
EP0175578A3 EP0175578A3 (en) 1986-11-12
EP0175578B1 EP0175578B1 (de) 1990-12-27

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Cited By (9)

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DE3909449A1 (de) * 1989-03-22 1990-11-22 Kernforschungsz Karlsruhe Verfahren zur herstellung von leuchtschirmen, verstaerkungs- oder speicherfolien fuer die roentgendiagnostik
EP0889483A1 (de) * 1997-07-04 1999-01-07 Imation Corp. Sinter-Verstärkungsschirm für Röntgenstrahlen und Verfahren zur Herstellung desselben
US5942756A (en) * 1992-02-20 1999-08-24 Imation Corp. Radiation detector and fabrication method
FR2803854A1 (fr) * 2000-01-17 2001-07-20 Siemens Ag Procede d'amelioration de la separation optique de couches de matiere luminescente
EP1276117A2 (de) * 2001-07-10 2003-01-15 Fuji Photo Film Co., Ltd. Schirm zum Speichern eines Strahlungsbildes
US6866979B2 (en) 1996-04-15 2005-03-15 3M Innovative Properties Company Laser addressable thermal transfer imaging element with an interlayer
US7396631B2 (en) 2005-10-07 2008-07-08 3M Innovative Properties Company Radiation curable thermal transfer elements
US7534543B2 (en) 1996-04-15 2009-05-19 3M Innovative Properties Company Texture control of thin film layers prepared via laser induced thermal imaging
US7678526B2 (en) 2005-10-07 2010-03-16 3M Innovative Properties Company Radiation curable thermal transfer elements

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JPS6412300A (en) * 1987-07-03 1989-01-17 Fuji Photo Film Co Ltd Radiation image conversion panel and its manufacturing method
JPS649399A (en) * 1987-07-01 1989-01-12 Fuji Photo Film Co Ltd Radioactive image conversion panel
JPH0690319B2 (ja) * 1987-02-02 1994-11-14 富士写真フイルム株式会社 放射線像変換パネルの製造法
JPS6363784A (ja) * 1986-09-05 1988-03-22 Fujitsu Ltd 薄膜螢光体
JPS6389660A (ja) * 1986-10-01 1988-04-20 Konica Corp 蛍光体蒸着装置
JPS63262600A (ja) * 1987-04-20 1988-10-28 富士写真フイルム株式会社 放射線像変換パネルおよびその製造法
US5098813A (en) * 1987-07-13 1992-03-24 Konica Corporation Processes for preparing stimulable-phosphor radiation image storage panel using specified heat or heat and activator-containing gas treatment
CA2034118A1 (en) * 1990-02-09 1991-08-10 Nang Tri Tran Solid state radiation detector
US5368882A (en) * 1993-08-25 1994-11-29 Minnesota Mining And Manufacturing Company Process for forming a radiation detector
CA2131243A1 (en) * 1993-09-27 1995-03-28 Kenneth R. Paulson Process for forming a phosphor
US5411806A (en) * 1994-10-07 1995-05-02 Minnesota Mining And Manufacturing Company Method for the manufacture of a phosphor screen and resulting article
US5520965A (en) * 1994-10-07 1996-05-28 Minnesota Mining And Manufacturing Company Radiation cured radiographic intensifying screen
US5569485A (en) * 1994-10-07 1996-10-29 Minnesota Mining And Manufacturing Company Method for the manufacture of a radiographic intensifying screen with antistat
US5998085A (en) * 1996-07-23 1999-12-07 3M Innovative Properties Process for preparing high resolution emissive arrays and corresponding articles
JP4521144B2 (ja) * 1999-07-02 2010-08-11 シミクス・テクノロジーズ・インコーポレーテツド ＣｓＸ光刺激可能な蛍リン光体の製造法及びそれからの蛍リン光体
DE10116803C2 (de) * 2001-04-04 2003-10-02 Siemens Ag Strahlungswandler und Verfahren zur Herstellung desselben
TWI241728B (en) * 2004-09-01 2005-10-11 Epistar Corp Semiconductor light-emitting device and production method thereof

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EP0100483A2 (de) * 1982-07-21 1984-02-15 Fuji Photo Film Co., Ltd. Zusammengesetztes Material zum Speichern eines Strahlungsbildes
EP0102790A2 (de) * 1982-08-25 1984-03-14 Kabushiki Kaisha Toshiba Vorrichtung zum Speichern und zum Wiederaufbauen eines Strahlungsbildes

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GB2096160A (en) * 1981-02-26 1982-10-13 Eastman Kodak Co X-ray intensifying screens
EP0100483A2 (de) * 1982-07-21 1984-02-15 Fuji Photo Film Co., Ltd. Zusammengesetztes Material zum Speichern eines Strahlungsbildes
EP0102790A2 (de) * 1982-08-25 1984-03-14 Kabushiki Kaisha Toshiba Vorrichtung zum Speichern und zum Wiederaufbauen eines Strahlungsbildes

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3909449A1 (de) * 1989-03-22 1990-11-22 Kernforschungsz Karlsruhe Verfahren zur herstellung von leuchtschirmen, verstaerkungs- oder speicherfolien fuer die roentgendiagnostik
US5942756A (en) * 1992-02-20 1999-08-24 Imation Corp. Radiation detector and fabrication method
US6866979B2 (en) 1996-04-15 2005-03-15 3M Innovative Properties Company Laser addressable thermal transfer imaging element with an interlayer
US7226716B2 (en) 1996-04-15 2007-06-05 3M Innovative Properties Company Laser addressable thermal transfer imaging element with an interlayer
US7534543B2 (en) 1996-04-15 2009-05-19 3M Innovative Properties Company Texture control of thin film layers prepared via laser induced thermal imaging
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Also Published As

Publication number Publication date
EP0175578B1 (de) 1990-12-27
EP0175578A3 (en) 1986-11-12
DE3581149D1 (de) 1991-02-07
JPS6173100A (ja) 1986-04-15
JPH0677079B2 (ja) 1994-09-28

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