WO2014080692A1 - 可搬型放射線画像撮影装置 - Google Patents
可搬型放射線画像撮影装置 Download PDFInfo
- Publication number
- WO2014080692A1 WO2014080692A1 PCT/JP2013/076300 JP2013076300W WO2014080692A1 WO 2014080692 A1 WO2014080692 A1 WO 2014080692A1 JP 2013076300 W JP2013076300 W JP 2013076300W WO 2014080692 A1 WO2014080692 A1 WO 2014080692A1
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- WO
- WIPO (PCT)
- Prior art keywords
- housing
- casing
- layer
- thickness
- portable radiographic
- Prior art date
Links
- 238000002601 radiography Methods 0.000 title abstract description 4
- 239000006260 foam Substances 0.000 claims abstract description 53
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 25
- 239000004917 carbon fiber Substances 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 22
- 230000005855 radiation Effects 0.000 claims abstract description 22
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000003384 imaging method Methods 0.000 claims description 40
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 8
- 239000004744 fabric Substances 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002984 plastic foam Substances 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
- A61B6/4283—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by a detector unit being housed in a cassette
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4405—Constructional features of apparatus for radiation diagnosis the apparatus being movable or portable, e.g. handheld or mounted on a trolley
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B42/00—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means
- G03B42/02—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means using X-rays
- G03B42/04—Holders for X-ray films
Definitions
- the present invention relates to a portable radiographic image capturing apparatus.
- a so-called CR (Computed Radiography) device that accumulates energy of radiation transmitted through a subject in a stimulable phosphor sheet has been widely used.
- the energy of the radiation accumulated in the stimulable phosphor sheet is emitted from the stimulable phosphor sheet as stimulating light by scanning the stimulable phosphor sheet with laser light. This is used by photoelectrically converting it with a photomultiplier tube or the like to obtain image data.
- a cassette in which a photostimulable phosphor sheet is housed is often used.
- the cassette of the CR device is used by being loaded into a conventional Bucky device (also referred to as a Bucky radiographing table or the like; see FIG. 3 to be described later) installed in a facility such as a hospital where a conventional screen / film cassette is loaded.
- a conventional Bucky device also referred to as a Bucky radiographing table or the like; see FIG. 3 to be described later
- the screen / film cassette is often designed and manufactured according to the JIS standard size.
- a radiographic imaging apparatus usually includes a sensor panel in which a plurality of radiation detection elements such as photodiodes that generate electric charges according to the dose of irradiated radiation are two-dimensionally arranged. It is also known as FPD (Flat Panel Detector) because it detects radiation.
- FPD Full Panel Detector
- a cassette type radiographic image capturing apparatus (that is, a portable radiographic image capturing apparatus) in which the sensor panel is housed in a casing and can be carried has come to be put into practical use.
- this portable radiographic imaging device is used by loading an existing Bucky device in a hospital or the like into an existing Bucky device without replacing it with a new Bucky device, as in the case of the cassette for the CR device. In order to be able to do this, it is often formed in a size conforming to the JIS standard size in a conventional screen / film cassette (see, for example, Patent Document 1).
- such a portable radiographic image capturing apparatus is often configured to be used without being loaded into the bucky apparatus as described above.
- the portable radiographic image capturing apparatus is brought into a patient's room, home, etc. In many cases, it is configured so that radiographic imaging can be performed in a state of being directly applied.
- an electronic component is included, or a glass substrate is used to protect a photodiode or the like as will be described later. Compared to it, it becomes heavier.
- the impact applied to the apparatus when the portable radiographic image capturing apparatus is hit is increased accordingly.
- the portable radiographic image capturing apparatus is used by being mounted on the bucky device as described above, the portable radiographic image capturing device is hit against a hard corner or the like of the bucky device, for example, the portable radiographic image capturing device.
- the impact when hitting the handrail or corner of the bed is increased.
- the case of the portable radiographic imaging device is not a simple plastic, but a carbon fiber is hardened with a resin or the like.
- Increasing cases are made of carbon plates. However, in general, since the carbon plate is heavier than plastic, it is a factor that increases the weight of the portable radiographic imaging device.
- portable radiographic imaging is performed by embedding a foam 103 made of foamed resin or the like between carbon plates 102 a and 102 b constituting the housing 101.
- the weight of the housing 101 of the device 100 can be reduced (see, for example, Patent Documents 2 and 3).
- illustration of a glass substrate, an electronic component, and the like housed in the housing 101 is omitted.
- a plurality of carbon plates having the same thickness can be laminated on the outer side and the inner side of the foam 103, respectively.
- the casing 101 may be damaged due to, for example, breaking of the carbon plate 102a of the outer layer of the casing 101. is there. Further, if the number of the outer layer and inner layer carbon plates of the foam 103 is increased in order to prevent the outer layer carbon plate 102a of the casing 101 from cracking, the entire casing 101 becomes heavier.
- the portable radiographic image capturing apparatus is configured in the JIS size as described above, the thickness of the portable radiographic image capturing apparatus does not fall within the range of 13 to 16 mm which is the thickness dimension of the JIS size. .
- the present invention has been made in view of the above-mentioned problems, and portable radiation that can reduce the weight of the housing and can maintain sufficient impact strength on the surface of the housing.
- An object is to provide an image photographing apparatus.
- the portable radiographic imaging device of the present invention is: A sensor panel that converts the irradiated radiation into an electrical signal to obtain image data; A housing that houses the sensor panel and is formed of a material containing carbon fiber; With A foam layer is embedded in the housing, The casing is formed such that a layer outside the foam layer is thicker than a layer inside the foam layer.
- the portable radiographic imaging device of the present invention it is possible to reduce the weight of the casing by forming the casing from a material containing carbon fiber and embedding a foam layer in the casing. It becomes.
- the thickness of the outer layer outside the foam layer in the housing is made thicker than the thickness of the inner layer inside the foam layer (that is, the foam layer is placed inside the housing 2).
- the housing By configuring the housing (to be eccentric), it is possible to make the thickness of the outer layer thicker than when the outer layer and the inner layer are formed to have the same thickness, for example. Therefore, it is possible to increase the outer layer's impact strength by increasing the thickness of the outer layer and maintain sufficient impact strength on the case surface without increasing the overall thickness of the case. It becomes possible to do.
- FIG. 2 is a cross-sectional view taken along line XX in FIG.
- FIG. 2 is a cross-sectional view taken along line XX in FIG.
- FIG. 2 is an external appearance perspective view which shows the structural example of the Bucky apparatus for standing position photography as an example of a Bucky apparatus.
- It is sectional drawing for demonstrating the state which made the position which embeds a foam layer in a housing
- a scintillator or the like is provided, and the emitted radiation is converted into electromagnetic waves of other wavelengths such as visible light, and the converted electromagnetic waves are converted into electrical signals to obtain image data.
- a so-called indirect radiographic imaging apparatus will be described.
- the present invention relates to a so-called direct radiographic imaging apparatus that obtains image data by directly converting radiation into an electrical signal by a radiation detection element without using a scintillator or the like. It can also be applied to.
- FIG. 1 is a perspective view showing an appearance of a portable radiographic image capturing apparatus according to the present embodiment
- FIG. 2 is a cross-sectional view taken along line XX of FIG.
- the portable radiographic imaging apparatus 1 includes a scintillator substrate 34 having a scintillator 3 formed on the surface in a housing 2, a sensor substrate 4 that detects visible light from the scintillator 3, and the like.
- the configured sensor panel SP is accommodated.
- the configuration of the hollow rectangular tube-shaped housing body 2A having the radiation incident surface R in the housing 2 will be described in detail later.
- casing 2 is formed by obstruct
- the lid member 2B on one side of the housing 2 has an indicator constituted by a power switch 37, a changeover switch 38, a connector 39, an LED for displaying a battery state, an operating state of the portable radiographic imaging apparatus 1, and the like. 40 etc. are arranged.
- the connector 39 can be connected to a connector provided at the end of the cable, and is wired to, for example, an external device via the connector 39. It is possible to transmit and receive signals and the like and transmit image data and the like by a method. Further, the battery 36 (see FIG. 2 described later) of the portable radiographic image capturing apparatus 1 can be charged via the connector 39.
- the lid member 2C on the opposite side of the housing 2 is provided with an antenna device embedded in the lid member 2C, for example.
- this antenna device is provided.
- a foam layer 21 (see FIG. 4 and the like described later) is embedded in the housing 2. However, this point will be described in detail later.
- a base 31 is provided in the internal space surrounded by the casing 2, and a lead thin plate (not shown) is provided on the radiation incident surface R side (hereinafter simply referred to as the upper surface side) of the base 31.
- the sensor panel SP is arranged.
- the buffer material 35 is provided between the sensor panel SP and the side surface of the housing 2.
- FIG. 3 is an external perspective view showing a configuration example of a standing-up shooting bucky device as an example of the bucky device.
- the bucky device 50 is configured such that a cassette holder (also referred to as a cassette holding portion) 53 is attached to a column 52 erected on a leg 51 so as to be movable in the vertical direction.
- a drawer 54 having a handle 55 is provided on the side surface of the cassette holder 53, and the portable radiographic imaging device 1 can be loaded therein.
- the portable radiographic imaging device 1 is loaded and used in an existing Bucky device 50 in a facility such as a hospital, which can be loaded with a conventional screen / film cassette or a cassette of a CR device. Therefore, the casing 2 of the portable radiographic image capturing apparatus 1 is formed in a size conforming to the JIS standard size (JISJZ 4905) in the screen / film cassette.
- JISJZ 4905 JIS standard size
- the thickness range of at least the radiation incident direction of the housing 2 is 13 to 16 mm. It is formed to fit inside.
- this invention is applicable also to the portable radiographic imaging device which is not formed in the size based on the above JIS specification sizes.
- the housing 2 that houses the sensor panel SP is formed of a material containing carbon fiber.
- the foam layer is embedded in the housing 2.
- the casing 2 is formed so that the thickness of the layer outside the foam layer is thicker than the thickness of the layer inside the foam layer.
- the outer layer 22 is laminated outside the foam layer 21, and the inner layer 23 is laminated inside the foam layer 21,
- a housing 2 (to be precise, the above-described housing body 2A (see FIG. 1); the same applies hereinafter) is formed.
- FIG. 4 as in FIG. 5 described above, illustration of the sensor panel SP (see FIG. 2) and the like housed in the housing 2 is omitted. Further, the relative thickness, length, size, and the like of each member do not necessarily reflect reality.
- the foam layer 103 is configured to be embedded in the central portion of the casing 101. That is, the casing 101 is formed so that the thickness of the outer layer 102 a outside the foam layer 103 and the thickness of the inner layer 102 b inside the foam layer 103 are substantially equal.
- the casing 2 is hit against the corner of the cassette holder 53 or against the handle 55.
- the outer layer 102a portion of the casing 101 may be broken.
- the carbon plate laminated on the outer layer 102a and the inner layer 102b of the housing 101 is used. If the number of sheets is increased by the same number to increase the thickness of the casing 2, the weight of the casing 101 becomes heavy. Moreover, even if it is going to form the housing
- the casing 2 is embedded at a position where the foam layer 21 is eccentrically located inside the casing 2. It is configured as follows. In other words, in the present embodiment, the portable radiographic imaging device 1 is configured so that the thickness of the outer layer 22 outside the foam layer 21 is thicker than the thickness of the inner layer 23 inside the foam layer 21.
- the body 2 is configured.
- the outer layer 22 is formed to have the same thickness. It is possible to make it thicker than in the case of doing so. And it becomes possible to make the thickness of the outer layer 22 thicker and to improve the impact strength etc. of the outer layer 22 more.
- the housing Even when the foam layer 21 is formed so as to be embedded in the housing 2 in order to reduce the weight of the housing 2, the housing It is possible to sufficiently maintain the impact strength of the surface of No. 2. Therefore, for example, even when an impact is applied by hitting the casing 2 of the portable radiographic imaging device 1 against the corner of the cassette holder 53 or hitting the handle 55 as described above, the casing 2 It is possible to accurately prevent the outer layer 22 from being broken.
- the casing 2 is configured as described above, so that the casing 2 is cracked or the like in a normal shooting operation when an impact is applied to the bucky device 50 or the like. It has been found that it is possible to sufficiently prevent the occurrence of.
- FIG. 4 shows the case where the foam layers 21 are formed on both surfaces of the radiation incident surface R side of the housing 2 and the opposite surface R * .
- the foam layer 21 may be formed only on the surface on the radiation incident surface R side of the housing 2 or only on the surface R * on the other side of the housing 2.
- the foam layer 21 can also be formed on the side surface of the housing 2.
- the foam layer 21 is formed using a very hard, for example, a hard foam based on PMI (polymethacrylimide).
- the housing 2 is formed of a material containing carbon fiber, and in particular, the outer layer 22 and the inner layer 23 of the housing 2 are made of a prepreg known as a material containing carbon fiber. Is formed.
- the foam layer 21 is laminated on the outer side of the inner layer 23 formed of prepreg, and the outer layer 22 formed of prepreg is further laminated on the outer side thereof.
- the thickness of the outer layer 22 is made larger than the thickness of the inner layer 23 by increasing the number of layers of the prepreg laminated as the outer layer 22 rather than the prepreg laminated as the inner layer 23.
- a prepreg is a so-called cloth prepreg in which carbon fibers arranged in one direction and carbon fibers arranged in a direction perpendicular thereto are woven, and arranged in one direction.
- a so-called unidirectional prepreg made of only carbon fibers (see, for example, Japanese Patent Application Laid-Open No. 2008-207523). Then, the carbon fibers are hardened with, for example, a resin to form a prepreg.
- the outer layer 22 of the housing 2 can be formed by combining a prepreg made of a cloth material and a prepreg made of a unidirectional material.
- carbon fiber has a very large specific strength and is light as described above, but it is very strong against the tensile force. Therefore, the prepreg made of cloth produces a strong tensile force in the surface direction when it hits an object. However, the carbon fiber is not cut unless the tensile force is abnormally strong. For this reason, the prepreg made of cloth material does not easily crack even when it hits an object, and has a very high impact strength.
- the cloth material prepreg is arranged on the outermost layer of the outer layer 22.
- the cloth material prepreg is arranged on the outermost layer of the outer layer 22.
- the prepreg of the unidirectional material is formed by arranging the carbon fibers so as to face in the same direction and solidifying them with, for example, a resin. And even if a strong tensile force is applied to the extending direction of the carbon fiber, the prepreg of the unidirectional material hardly extends the carbon fiber unless the tensile force applied to the carbon fiber is strong enough to cut the carbon fiber. Therefore, the unidirectional material prepreg has a characteristic that it is difficult to bend in the extending direction of the carbon fiber.
- a part of the unidirectional material prepreg has a carbon fiber extending direction in the longitudinal direction of the housing 2 (that is, for example, in the example of FIG. 1, it is preferable that the casing 2 of the portable radiographic imaging device 1 is not easily bent in the longitudinal direction if it is arranged so as to face in the direction from one X to the other X. .
- a plurality of unidirectional material prepregs are arranged such that the extending directions of the carbon fibers are orthogonal to each other (see Japanese Patent Application Laid-Open No. 2008-207523 described above), or By arranging the casing 2 so that the angle formed by the extending direction of the carbon fibers is, for example, 45 ° (see Japanese Patent Application Laid-Open No. 2004-70253), the casing 2 is difficult to bend in various directions. This makes it possible to improve the rigidity and the like of the housing 2.
- the portable radiographic imaging device 1 forms the housing 2 that houses the sensor panel SP with a material containing carbon fiber, and embeds the foam layer 21 in the housing 2. Further, the outer layer 22 outside the foam layer 21 in the housing 2 is formed to be thicker than the inner layer 23 inside the foam layer 21.
- the thickness of the outer layer 22 outside the foam layer 21 is thicker than the thickness of the inner layer 23 inside the foam layer 21 (that is, the foam layer 21 is placed inside the casing 2 inside).
- the outer layer 22 can be made thicker. Therefore, it is possible to further increase the impact strength of the outer layer 22 by increasing the thickness of the outer layer 22, and a sufficient surface of the housing 2 can be obtained without increasing the thickness of the entire housing 2. It is possible to maintain the impact strength.
- the housing 2 is formed of a material containing carbon fiber, and the foam layer 21 is embedded in the housing 2, thereby It is possible to reduce the weight, and the impact strength of the surface of the housing 2 can be maintained at a sufficient strength that does not cause cracking even if it is hit in a normal use state. It is possible to make the photographing apparatus 1 light, strong and easy to use.
- the foam layer 21 of the housing 2 is formed of a hard foam based on PMI.
- the foam layer 21 is formed using a foam other than the foam based on PMI. It is also possible to do.
- this hard plastic foam a harder and lighter (or cheaper) foam will be developed in the future due to improvements in quality and materials.
- the present invention can be applied to the case of using such a foam.
- It may be used in the field of radiographic imaging (especially in the medical field).
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Abstract
Description
照射された放射線を電気信号に変換して画像データを得るセンサーパネルと、
前記センサーパネルを収納し、カーボン繊維を含む材料で形成される筐体と、
を備え、
前記筐体中に、発泡体層が埋め込まれており、
前記筐体は、前記発泡体層よりも外側の層の厚さが、前記発泡体層よりも内側の層の厚さよりも厚くなるように形成されていることを特徴とする。
次に、本実施形態に係る可搬型放射線画像撮影装置1における筐体2の重量を軽減するための構成等について説明する。また、本実施形態に係る可搬型放射線画像撮影装置1の作用についてもあわせて説明する。
以上のように、本実施形態に係る可搬型放射線画像撮影装置1は、センサーパネルSPを収納する筐体2をカーボン繊維を含む材料で形成し、筐体2中に発泡体層21を埋め込み、さらに筐体2における発泡体層21よりも外側の外層22の厚さが、発泡体層21よりも内側の内層23の厚さよりも厚くなるように形成される。
Claims (2)
- 照射された放射線を電気信号に変換して画像データを得るセンサーパネルと、
前記センサーパネルを収納し、カーボン繊維を含む材料で形成される筐体と、
を備え、
前記筐体中に、発泡体層が埋め込まれており、
前記筐体は、前記発泡体層よりも外側の層の厚さが、前記発泡体層よりも内側の層の厚さよりも厚くなるように形成されていることを特徴とする可搬型放射線画像撮影装置。 - 前記筐体は、スクリーン/フィルム用のカセッテにおけるJIS規格サイズに準拠するサイズで形成されていることを特徴とする請求項1に記載の可搬型放射線画像撮影装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/646,540 US9864078B2 (en) | 2012-11-21 | 2013-09-27 | Portable type radiation image capturing apparatus |
JP2014548489A JP6520121B2 (ja) | 2012-11-21 | 2013-09-27 | 可搬型放射線画像撮影装置 |
CN201380060241.9A CN104797192B (zh) | 2012-11-21 | 2013-09-27 | 便携型放射线图像摄影装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2012-254822 | 2012-11-21 | ||
JP2012254822 | 2012-11-21 |
Publications (1)
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WO2014080692A1 true WO2014080692A1 (ja) | 2014-05-30 |
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ID=50775882
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PCT/JP2013/076300 WO2014080692A1 (ja) | 2012-11-21 | 2013-09-27 | 可搬型放射線画像撮影装置 |
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US (1) | US9864078B2 (ja) |
JP (1) | JP6520121B2 (ja) |
CN (1) | CN104797192B (ja) |
WO (1) | WO2014080692A1 (ja) |
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CN105193437A (zh) * | 2014-06-18 | 2015-12-30 | 佳能株式会社 | 放射线摄影装置与放射线摄影系统 |
WO2023032893A1 (ja) | 2021-09-01 | 2023-03-09 | 東レ株式会社 | X線透過部材 |
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US9468118B1 (en) * | 2013-12-20 | 2016-10-11 | Amazon Technologies, Inc. | Reinforced structural composite |
US11022706B2 (en) | 2017-02-14 | 2021-06-01 | Carestream Health, Inc. | Radiographic detector |
JP7199944B2 (ja) | 2018-12-06 | 2023-01-06 | キヤノン株式会社 | 放射線撮影装置 |
WO2021030253A1 (en) | 2019-08-12 | 2021-02-18 | Carestream Health, Inc. | Radiographic detector |
JP2023003636A (ja) * | 2021-06-24 | 2023-01-17 | コニカミノルタ株式会社 | 放射線検出器 |
US11974869B2 (en) * | 2022-01-25 | 2024-05-07 | Kurt Hainze | Portable x-ray cassette positioning system and method |
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KR20240051128A (ko) | 2021-09-01 | 2024-04-19 | 도레이 카부시키가이샤 | X선 투과 부재 |
Also Published As
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JPWO2014080692A1 (ja) | 2017-01-05 |
JP6520121B2 (ja) | 2019-05-29 |
CN104797192A (zh) | 2015-07-22 |
US20150309194A1 (en) | 2015-10-29 |
US9864078B2 (en) | 2018-01-09 |
CN104797192B (zh) | 2018-02-06 |
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