EP0255017B1 - Appareil de diagnostic par rayons X pour prises de vues radiographiques - Google Patents
Appareil de diagnostic par rayons X pour prises de vues radiographiques Download PDFInfo
- Publication number
- EP0255017B1 EP0255017B1 EP87110496A EP87110496A EP0255017B1 EP 0255017 B1 EP0255017 B1 EP 0255017B1 EP 87110496 A EP87110496 A EP 87110496A EP 87110496 A EP87110496 A EP 87110496A EP 0255017 B1 EP0255017 B1 EP 0255017B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ray
- speed
- grid
- exposure
- diagnostic apparatus
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
- H05G1/08—Electrical details
- H05G1/26—Measuring, controlling or protecting
- H05G1/30—Controlling
- H05G1/38—Exposure time
- H05G1/42—Exposure time using arrangements for switching when a predetermined dose of radiation has been applied, e.g. in which the switching instant is determined by measuring the electrical energy supplied to the tube
- H05G1/44—Exposure time using arrangements for switching when a predetermined dose of radiation has been applied, e.g. in which the switching instant is determined by measuring the electrical energy supplied to the tube in which the switching instant is determined by measuring the amount of radiation directly
-
- 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
- G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
- G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
- G21K1/025—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using multiple collimators, e.g. Bucky screens; other devices for eliminating undesired or dispersed radiation
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
- H05G1/08—Electrical details
- H05G1/60—Circuit arrangements for obtaining a series of X-ray photographs or for X-ray cinematography
Claims (1)
- Appareil de radiodiagnostic servant à réaliser des radiographies et comportant une grille antidiffusante (7) placée devant le dispositif (9) d'enregistrement sur film, un régulateur (11) servant à déplacer la grille antidiffusante (7) pendant une prise de vue perpendiculairement au rayon central (10) du faisceau (4) de rayons X, et des moyens (6) servant à former un signal électrique correspondant à la durée de la prise de vue, caractérisé par le fait qu'il est prévu un dispositif (17, 18) servant à commander la vitesse du déplacement de la grille antidiffusante (7) et auquel est envoyé le signal servant à déterminer la vitesse en fonction de la durée de la prise de vue.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3625856 | 1986-07-31 | ||
DE3625856 | 1986-07-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0255017A1 EP0255017A1 (fr) | 1988-02-03 |
EP0255017B1 true EP0255017B1 (fr) | 1990-06-27 |
Family
ID=6306359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87110496A Expired - Lifetime EP0255017B1 (fr) | 1986-07-31 | 1987-07-20 | Appareil de diagnostic par rayons X pour prises de vues radiographiques |
Country Status (4)
Country | Link |
---|---|
US (1) | US4803716A (fr) |
EP (1) | EP0255017B1 (fr) |
JP (1) | JPS63157742U (fr) |
DE (1) | DE3763469D1 (fr) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5040202A (en) * | 1989-06-05 | 1991-08-13 | General Electric | Method and apparatus for reducing x-ray grid images |
US4969174A (en) * | 1989-09-06 | 1990-11-06 | General Electric Company | Scanning mammography system with reduced scatter radiation |
US4998270A (en) * | 1989-09-06 | 1991-03-05 | General Electric Company | Mammographic apparatus with collimated controllable X-ray intensity and plurality filters |
FI85775C (fi) * | 1990-11-22 | 1992-05-25 | Planmed Oy | Foerfarande och anordning vid roentgenteknik. |
US5379335A (en) * | 1993-08-09 | 1995-01-03 | Picker International, Inc. | Automatic grid oscillation control for radiographic imaging systems |
JPH10305030A (ja) * | 1997-03-06 | 1998-11-17 | Canon Inc | 放射線撮像装置及び放射線撮像装置の駆動方法 |
FR2784569B1 (fr) | 1998-10-15 | 2001-02-16 | Ge Medical Syst Sa | Procede d'amelioration de la qualite d'une image radiographique d'un objet obtenue par un appareil de radiographie equipe d'une grille antidiffusion |
US6181773B1 (en) | 1999-03-08 | 2001-01-30 | Direct Radiography Corp. | Single-stroke radiation anti-scatter device for x-ray exposure window |
JP4557357B2 (ja) * | 2000-03-31 | 2010-10-06 | キヤノン株式会社 | 撮影制御装置、撮影制御方法及び記憶媒体 |
US6795528B2 (en) * | 2001-01-12 | 2004-09-21 | Canon Kabushiki Kaisha | Radiographic apparatus, radiographic method, and computer-readable storage medium |
FR2823970B1 (fr) | 2001-04-30 | 2003-11-28 | Ge Med Sys Global Tech Co Llc | Procede d'amelioration de l'image d'un objet obtenue a partir d'un appareil de radiographie muni d'une grille anti diffusion et dispositif de mise en oeuvre |
JP4695795B2 (ja) * | 2001-09-21 | 2011-06-08 | キヤノン株式会社 | 撮像装置及び撮像方法 |
DE102004017180B4 (de) * | 2004-04-07 | 2007-08-02 | Siemens Ag | Röntgendiagnostikeinrichtung zur digitalen Radiographie |
US7672428B1 (en) * | 2006-05-17 | 2010-03-02 | Elekta Ab (Publ) | Radiotherapy apparatus |
JP2010012030A (ja) * | 2008-07-03 | 2010-01-21 | Fujifilm Corp | 放射線画像撮影装置 |
JP2010012024A (ja) * | 2008-07-03 | 2010-01-21 | Fujifilm Corp | 放射線画像撮影装置 |
DE102011080279A1 (de) * | 2011-08-02 | 2013-02-07 | Siemens Aktiengesellschaft | Verfahren und Vorrichtung zum Einsatz eines Streustrahlenrasters bei der periodischen Aufnahme von Röntgenbildern |
WO2015016117A1 (fr) * | 2013-07-31 | 2015-02-05 | 株式会社 日立メディコ | Dispositif ct à rayons x, dispositif à haute tension à rayons x, et dispositif d'imagerie à rayons x |
WO2018214027A1 (fr) | 2017-05-23 | 2018-11-29 | Shanghai United Imaging Healthcare Co., Ltd. | Systèmes et procédés d'imagerie par rayons x |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2733613A1 (de) * | 1977-07-26 | 1979-02-08 | Philips Patentverwaltung | Vorrichtung zum antrieb eines streustrahlenrasters |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE884148C (de) * | 1942-01-17 | 1953-07-23 | Siemens Reiniger Werke Ag | Sekundaerstrahlenblende fuer die Untersuchung mit Roentgenstrahlen |
DE956013C (de) * | 1952-07-27 | 1957-01-10 | Siemens Reiniger Werke Ag | Roentgengeraet mit einer ohne Unterbrechung hin- und herbewegten Streustrahlenblende |
JPS5213190U (fr) * | 1975-07-14 | 1977-01-29 | ||
US4096391A (en) * | 1976-10-15 | 1978-06-20 | The Board Of Trustees Of The University Of Alabama | Method and apparatus for reduction of scatter in diagnostic radiology |
US4250103A (en) * | 1978-12-27 | 1981-02-10 | The Boeing Company | Radiographic apparatus and method for monitoring film exposure time |
JPS58152543A (ja) * | 1982-03-09 | 1983-09-10 | 株式会社東芝 | X線撮影装置 |
FR2526575A1 (fr) * | 1982-05-04 | 1983-11-10 | Thomson Csf | Procede de traitement d'image radiologique en vue de corriger ladite image des defauts dus au rayonnement diffuse |
DE3316003A1 (de) * | 1983-05-03 | 1984-11-08 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Vorrichtung zur beseitigung von streustrahlung |
JPS60181638A (ja) * | 1984-02-29 | 1985-09-17 | Toshiba Corp | 放射線像撮影装置 |
-
1987
- 1987-07-20 EP EP87110496A patent/EP0255017B1/fr not_active Expired - Lifetime
- 1987-07-20 DE DE8787110496T patent/DE3763469D1/de not_active Expired - Fee Related
- 1987-07-21 US US07/075,995 patent/US4803716A/en not_active Expired - Fee Related
- 1987-07-29 JP JP1987116591U patent/JPS63157742U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2733613A1 (de) * | 1977-07-26 | 1979-02-08 | Philips Patentverwaltung | Vorrichtung zum antrieb eines streustrahlenrasters |
Also Published As
Publication number | Publication date |
---|---|
US4803716A (en) | 1989-02-07 |
DE3763469D1 (de) | 1990-08-02 |
EP0255017A1 (fr) | 1988-02-03 |
JPS63157742U (fr) | 1988-10-17 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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