JP2018061694A - 放射線画像読取装置 - Google Patents
放射線画像読取装置 Download PDFInfo
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- 230000005855 radiation Effects 0.000 title claims abstract description 51
- 238000001514 detection method Methods 0.000 claims abstract description 151
- 230000003287 optical effect Effects 0.000 claims abstract description 103
- 230000005284 excitation Effects 0.000 claims abstract description 84
- 238000002834 transmittance Methods 0.000 claims description 33
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- G—PHYSICS
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- 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
- G03B42/021—Apparatus for direct X-ray cinematography
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/20—Measuring radiation intensity with scintillation detectors
- G01T1/2012—Measuring radiation intensity with scintillation detectors using stimulable phosphors, e.g. stimulable phosphor sheets
- G01T1/2014—Reading out of stimulable sheets, e.g. latent image
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- 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
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- 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
- A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/20—Measuring radiation intensity with scintillation detectors
- G01T1/2012—Measuring radiation intensity with scintillation detectors using stimulable phosphors, e.g. stimulable phosphor sheets
- G01T1/2016—Erasing of stimulable sheets, e.g. with light, heat or the like
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
- G02B5/226—Glass filters
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/26—Reflecting filters
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/28—Interference filters
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/28—Interference filters
- G02B5/285—Interference filters comprising deposited thin solid films
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/28—Interference filters
- G02B5/285—Interference filters comprising deposited thin solid films
- G02B5/286—Interference filters comprising deposited thin solid films having four or fewer layers, e.g. for achieving a colour effect
-
- 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
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/0402—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
- H04N2201/0404—Scanning transparent media, e.g. photographic film
- H04N2201/0412—Scanning X-ray films
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/0402—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
- H04N2201/0436—Scanning a picture-bearing surface lying face up on a support
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Abstract
【解決手段】放射線画像読取装置1は、光走査部と、光検出部7と、光学フィルタ10と、を備えている。イメージングプレートIPの表面IPaで反射された励起光ELが光学フィルタ10を透過する透過率、及び、検出面S内において走査線に垂直な方向に対して所定角度θよりも大きい角度を成してイメージングプレートIPの表面IPaから放出された信号光FLが光学フィルタ10を透過する透過率のそれぞれは、検出面S内において走査線Lに垂直な方向に対して所定角度θよりも小さい角度を成してイメージングプレートIPの表面IPaから放出された信号光FLが光学フィルタ10を透過する透過率よりも小さい。
【選択図】図8
Description
Claims (5)
- 放射線画像が記録された記録媒体の表面に対して、走査線に沿って励起光を走査する光走査部と、
前記走査線を含み且つ前記記録媒体の前記表面と交差する検出面内において、前記励起光の走査により前記記録媒体の前記表面から放出された信号光を検出する光検出部と、
前記記録媒体の前記表面と前記光検出部との間に配置された光学フィルタと、を備え、
前記記録媒体の前記表面で反射された前記励起光が前記光学フィルタを透過する透過率、及び、前記検出面内において前記走査線に垂直な方向に対して所定角度よりも大きい角度を成して前記記録媒体の前記表面から放出された前記信号光が前記光学フィルタを透過する透過率のそれぞれは、前記検出面内において前記走査線に垂直な方向に対して前記所定角度よりも小さい角度を成して前記記録媒体の前記表面から放出された前記信号光が前記光学フィルタを透過する透過率よりも小さい、放射線画像読取装置。 - 前記検出面内において前記励起光の走査領域と前記信号光の検出領域とが中央揃えの位置関係にある場合において、前記走査領域の幅をW1とし、前記検出領域の幅をW2(>W1)とし、前記走査領域と前記検出領域との距離をDとし、前記所定角度をθとすると、
θ=tan−1{(W2−W1)/2D}が成立する、請求項1に記載の放射線画像読取装置。 - 前記光学フィルタは、
ガラス板と、
前記ガラス板の一方の表面に形成された第1誘電体多層膜と、
前記ガラス板の他方の表面に形成された第2誘電体多層膜と、を有し、
前記記録媒体の前記表面で反射された前記励起光が前記第1誘電体多層膜及び前記第2誘電体多層膜を透過する透過率、並びに、前記検出面内において前記走査線に垂直な方向に対して前記所定角度よりも大きい角度を成して前記記録媒体の前記表面から放出された前記信号光が前記第1誘電体多層膜及び前記第2誘電体多層膜を透過する透過率のそれぞれは、前記検出面内において前記走査線に垂直な方向に対して前記所定角度よりも小さい角度を成して前記記録媒体の前記表面から放出された前記信号光が前記第1誘電体多層膜及び前記第2誘電体多層膜を透過する透過率よりも小さい、請求項1又は2に記載の放射線画像読取装置。 - 前記記録媒体の前記表面と前記光学フィルタとの間に配置され、前記検出面に垂直な面内のみについて、前記記録媒体の前記表面で反射された前記励起光及び前記記録媒体の前記表面から放出された前記信号光を収束させる機能を有する光学素子、を更に備える、請求項1〜3のいずれか一項に記載の放射線画像読取装置。
- 前記光検出部は、前記走査線に平行な方向に沿って配列された複数の光検出素子を含み、
複数の前記光検出素子は、1つのチャネルとして制御される、請求項1〜4のいずれか一項に記載の放射線画像読取装置。
Priority Applications (15)
Application Number | Priority Date | Filing Date | Title |
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JP2016201663A JP6804257B2 (ja) | 2016-10-13 | 2016-10-13 | 放射線画像読取装置 |
EP23166750.2A EP4221178A1 (en) | 2016-10-13 | 2017-10-04 | Radiation image reading device |
CN202011202621.XA CN112235479B (zh) | 2016-10-13 | 2017-10-04 | 放射线图像读取装置 |
KR1020227021157A KR20220088818A (ko) | 2016-10-13 | 2017-10-04 | 방사선 화상 독취 장치 |
US16/341,162 US11355150B2 (en) | 2016-10-13 | 2017-10-04 | Radiation image reading device |
CN202011202173.3A CN112235478B (zh) | 2016-10-13 | 2017-10-04 | 放射线图像读取装置 |
EP23166751.0A EP4221179A1 (en) | 2016-10-13 | 2017-10-04 | Radiation image reading device |
CN202011202643.6A CN112235480B (zh) | 2016-10-13 | 2017-10-04 | 放射线图像读取装置 |
PCT/JP2017/036177 WO2018070325A1 (ja) | 2016-10-13 | 2017-10-04 | 放射線画像読取装置 |
EP17859806.6A EP3528484B1 (en) | 2016-10-13 | 2017-10-04 | Radiation image reading device |
KR1020197008406A KR102413195B1 (ko) | 2016-10-13 | 2017-10-04 | 방사선 화상 독취 장치 |
CN201780062934.XA CN109804613B (zh) | 2016-10-13 | 2017-10-04 | 放射线图像读取装置 |
JP2020200196A JP7382303B2 (ja) | 2016-10-13 | 2020-12-02 | 放射線画像読取装置 |
JP2020200193A JP7328197B2 (ja) | 2016-10-13 | 2020-12-02 | 放射線画像読取装置 |
US17/735,444 US20220270646A1 (en) | 2016-10-13 | 2022-05-03 | Radiation image reading device |
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JP2016201663A JP6804257B2 (ja) | 2016-10-13 | 2016-10-13 | 放射線画像読取装置 |
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JP2020200193A Division JP7328197B2 (ja) | 2016-10-13 | 2020-12-02 | 放射線画像読取装置 |
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JP2018061694A true JP2018061694A (ja) | 2018-04-19 |
JP6804257B2 JP6804257B2 (ja) | 2020-12-23 |
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US (2) | US11355150B2 (ja) |
EP (3) | EP3528484B1 (ja) |
JP (1) | JP6804257B2 (ja) |
KR (2) | KR102413195B1 (ja) |
CN (4) | CN112235478B (ja) |
WO (1) | WO2018070325A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021045579A (ja) * | 2016-10-13 | 2021-03-25 | 浜松ホトニクス株式会社 | 放射線画像読取装置 |
JP2021045578A (ja) * | 2016-10-13 | 2021-03-25 | 浜松ホトニクス株式会社 | 放射線画像読取装置 |
JP7445795B2 (ja) | 2020-12-02 | 2024-03-07 | 浜松ホトニクス株式会社 | 放射線画像読取装置 |
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JP6059094B2 (ja) | 2013-06-25 | 2017-01-11 | 浜松ホトニクス株式会社 | 放射線画像読出装置 |
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JP2021045579A (ja) * | 2016-10-13 | 2021-03-25 | 浜松ホトニクス株式会社 | 放射線画像読取装置 |
JP2021045578A (ja) * | 2016-10-13 | 2021-03-25 | 浜松ホトニクス株式会社 | 放射線画像読取装置 |
JP7445795B2 (ja) | 2020-12-02 | 2024-03-07 | 浜松ホトニクス株式会社 | 放射線画像読取装置 |
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CN112235480B (zh) | 2023-07-04 |
KR20220088818A (ko) | 2022-06-28 |
US20200185002A1 (en) | 2020-06-11 |
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CN112235478B (zh) | 2023-08-29 |
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CN112235478A (zh) | 2021-01-15 |
JP6804257B2 (ja) | 2020-12-23 |
EP3528484A1 (en) | 2019-08-21 |
CN109804613A (zh) | 2019-05-24 |
CN109804613B (zh) | 2020-11-24 |
CN112235480A (zh) | 2021-01-15 |
US20220270646A1 (en) | 2022-08-25 |
WO2018070325A1 (ja) | 2018-04-19 |
CN112235479A (zh) | 2021-01-15 |
EP4221178A1 (en) | 2023-08-02 |
EP3528484B1 (en) | 2024-04-17 |
KR20190062404A (ko) | 2019-06-05 |
KR102413195B1 (ko) | 2022-06-27 |
US11355150B2 (en) | 2022-06-07 |
CN112235479B (zh) | 2024-02-09 |
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