EP2984672A1 - Dispositif de tomodensitométrie rapide par faisceau d'électrons - Google Patents

Dispositif de tomodensitométrie rapide par faisceau d'électrons

Info

Publication number
EP2984672A1
EP2984672A1 EP14722085.9A EP14722085A EP2984672A1 EP 2984672 A1 EP2984672 A1 EP 2984672A1 EP 14722085 A EP14722085 A EP 14722085A EP 2984672 A1 EP2984672 A1 EP 2984672A1
Authority
EP
European Patent Office
Prior art keywords
electron beam
target
arrangement according
ray detector
vacuum chamber
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
EP14722085.9A
Other languages
German (de)
English (en)
Other versions
EP2984672B1 (fr
Inventor
Frank Barthel
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.)
Helmholtz Zentrum Dresden Rossendorf eV
Original Assignee
Helmholtz Zentrum Dresden Rossendorf eV
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
Application filed by Helmholtz Zentrum Dresden Rossendorf eV filed Critical Helmholtz Zentrum Dresden Rossendorf eV
Publication of EP2984672A1 publication Critical patent/EP2984672A1/fr
Application granted granted Critical
Publication of EP2984672B1 publication Critical patent/EP2984672B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/24—Tubes wherein the point of impact of the cathode ray on the anode or anticathode is movable relative to the surface thereof
    • H01J35/30—Tubes wherein the point of impact of the cathode ray on the anode or anticathode is movable relative to the surface thereof by deflection of the cathode ray
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
    • H01J35/08—Anodes; Anti cathodes
    • H01J35/112—Non-rotating anodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/14—Arrangements for concentrating, focusing, or directing the cathode ray
    • H01J35/153—Spot position control
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/02—Constructional details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/16—Vessels
    • H01J2235/163—Vessels shaped for a particular application

Definitions

  • the invention relates to an arrangement for electron beam
  • X-ray computed tomography For example, electron beam x-ray computed tomography has been used in medical diagnostics for several years.
  • a guided in a vacuum chamber electron beam is guided by means of an electromagnetic deflection over a partially circular metal target, whereby a fast moving X-ray focal spot is generated.
  • X-ray detector detects the transmitted through the object X-ray. From the measured data can then by applying tomographic
  • Image reconstruction methods the density distribution in the irradiated section plane are calculated.
  • No. 4,352,021 A describes such a system in which the electron beam is conducted from a static electron gun from the axial direction onto the target. Due to the limited possible deflection angle of the Ablenkspulenevers the arrangement described in US 4,352,021 A here is a considerable axial distance of the electron gun to the image plane necessary to achieve a focal spot of reasonable diameter. This leads to increased expense in the beam shaping and guiding, and thus increases the cost of the vacuum pumping system because of the large recipient volume, and limits the size of the objects to be examined in the axial direction. In addition, this arrangement limits the possible projection angle for tomographic scans, since electron beam and object are partially in the way of each other. The same applies to US 2003/0161434. DE 10 2007 008 349 A1 describes a system for fast axial offset-free scans,
  • Pipelines a minimum distance of the electron beam X-ray computer tomography system to flanges, fittings and similar radially projecting components necessary. This leads to relevant restrictions in the selection of the possible examination objects and locations, and thus to a restriction of the applicability.
  • Object of the present invention is to provide an arrangement for X-ray computed tomography, in which the above-mentioned defects are reduced.
  • the object is achieved by the axial size of the electron beam X-ray computer tomography system is significantly reduced, so that this system requires no complicated Strahlformungs- and - enclosuressysteme.
  • one or more longitudinal coils are used to force an electron beam injected in the direction of the main planes of the coils into a circular path in the magnetic field of the coils.
  • the main advantage of the invented X-ray computed tomography array is that the system requires little axial space, making it suitable for non-contact measurements in close quarters and close to fittings and flanges.
  • this system achieves a very large projection angle, allowing the artifact-free reconstruction of large diameter objects in relation to the target / detector diameter. It is advantageous that the
  • inventive system without elaborate beam forming and - Equipmentssysteme manages and thus is robust to use.
  • the arrangement according to the invention comprises
  • generated electron beam (5) can be injected radially in the direction of the main planes of the coil,
  • bremsstrahlung targets (4) are arranged,
  • the X-ray detector arc (6) lies within or outside the target radius
  • the X-ray detector plane is arranged with or without axial offset to the target plane.
  • the longitudinal coils can be arranged inside or outside the vacuum chamber. If the longitudinal coils are arranged outside the vacuum chamber, the outer wall of the vacuum chamber (2) advantageously consists of a diamagnetic material.
  • Thin longitudinal coils are used.
  • Thin longitudinal coils according to the invention are coils with only one or a small number of turns, i. the diameter is much larger than the length of the coil.
  • the X-ray detector arc (6) is arranged outside the vacuum chamber (2), in which case the vacuum chamber (2)
  • a special embodiment allows a synchronous multi-level tomography.
  • the electron gun (1), the target (4) and the X-ray detector arc (6) in the axial direction many times, ideally arranged one above the other.
  • the longitudinal coil has corresponding axial
  • the Bremsstrahlung target (4) exists when it is before
  • X-ray detector arc (6) is arranged, made of a material of low density and it is on the inside of Bremsstrahlungstargets (4) a thin
  • X-ray conversion layer applied from a material of high atomic number.
  • the target surface may be designed tooth-shaped structured in a further embodiment variant.
  • the electron gun (1) can be arranged both inside and outside the longitudinal coils (3). If the electron gun (1) is arranged outside the longitudinal coils (3), the electron beam will pass through an axial gap between the longitudinal coils injected into the flooding area.
  • the longitudinal coils are used in pairs.
  • Figures 1 and 2 show two embodiments of the arrangement.
  • the arrangement comprises an annular target (4), as well as an outside of the target (4) arranged X-ray detector arc (6), which may consist of juxtaposed single detectors.
  • the X-ray detector arc (6) can be arranged both without and with a small axial offset to the target (4).
  • FIG. 1 shows a variant in which the electron gun (1) lies within the longitudinal coils (3).
  • the electron beam (5) is inside the vacuum chamber (2) in
  • Electron beam generator (1) generated and forced in the flooding region of the longitudinal coils (3) by the Lorentz force on a circular path.
  • the radius of the circular path of the electron beam (5) is varied, whereby the
  • the object to be examined is located, from which data sets of transmission projections from different ones
  • Electron beam generator (1) outside the longitudinal coils (3) and passes through an axial gap between these longitudinal coils (3) in the flow area.

Landscapes

  • X-Ray Techniques (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

Le but de l'invention est de fournir un dispositif de tomodensitométrie par faisceau d'électrons qui puisse fonctionner sans l'importante étendue axiale du canon à électrons, et qui se passe sensiblement d'éléments opto-électroniques de guidage de faisceau. Selon l'invention, un arc de détecteurs de rayons X (6) et la cible (4) sont disposés dans un plan d'irradiation entourant la section d'examen, et un faisceau d'électrons généré dans un générateur de faisceau d'électrons (1) est introduit dans la zone de force magnétique d'une ou plusieurs bobines longitudinales, ledit faisceau étant contraint de suivre une orbite circulaire par le champ magnétique. Par une modification périodique de l'intensité du champ, le rayon de l'orbite est augmenté, ce qui amène le faisceau d'électrons à atteindre la cible (4) au niveau d'un foyer (7) se déplaçant tangentiellement. Le détecteur de rayons X (6) entourant la cible enregistre des projections de la transmission du rayonnement par l'objet (8) disposé au centre de ce dispositif. La générateur de faisceau d'électrons (1) peut être agencé aussi bien à l'intérieur qu'à l'extérieur des bobines longitudinales (3). La cible et le plan de détection peuvent présenter ou non un décalage axial.
EP14722085.9A 2013-04-09 2014-04-02 Dispositif de tomodensitométrie rapide par faisceau d'électrons Active EP2984672B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013206252.4A DE102013206252A1 (de) 2013-04-09 2013-04-09 Anordnung zur schnellen Elektronenstrahl-Röntgencomputertomographie
PCT/DE2014/000160 WO2014166468A1 (fr) 2013-04-09 2014-04-02 Dispositif de tomodensitométrie rapide par faisceau d'électrons

Publications (2)

Publication Number Publication Date
EP2984672A1 true EP2984672A1 (fr) 2016-02-17
EP2984672B1 EP2984672B1 (fr) 2019-03-13

Family

ID=50679801

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14722085.9A Active EP2984672B1 (fr) 2013-04-09 2014-04-02 Dispositif de tomodensitométrie rapide par faisceau d'électrons

Country Status (5)

Country Link
US (1) US20160027606A1 (fr)
EP (1) EP2984672B1 (fr)
JP (1) JP6099227B2 (fr)
DE (1) DE102013206252A1 (fr)
WO (1) WO2014166468A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019099904A1 (fr) 2017-11-16 2019-05-23 Varian Medical Systems, Inc. Sortie de faisceau améliorée et mise en forme de champ dynamique destinés à un système de radiothérapie
CN111880055B (zh) * 2020-07-09 2024-04-16 上海联影医疗科技股份有限公司 打火检测装置和方法

Family Cites Families (94)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4130759A (en) * 1977-03-17 1978-12-19 Haimson Research Corporation Method and apparatus incorporating no moving parts, for producing and selectively directing x-rays to different points on an object
US4392235A (en) * 1979-08-16 1983-07-05 General Electric Company Electronically scanned x-ray tomography system
US4352021A (en) 1980-01-07 1982-09-28 The Regents Of The University Of California X-Ray transmission scanning system and method and electron beam X-ray scan tube for use therewith
US4521900A (en) * 1982-10-14 1985-06-04 Imatron Associates Electron beam control assembly and method for a scanning electron beam computed tomography scanner
US4631741A (en) * 1984-04-05 1986-12-23 Imatron, Inc. Beam spot monitoring arrangement for use in a scanning electron beam computed tomography scanner and method
US4618970A (en) * 1984-04-05 1986-10-21 Imatron, Inc. Beam positioning arrangement for use in a scanning electron beam computed tomography scanner and method
US4625150A (en) * 1984-04-16 1986-11-25 Imatron, Inc. Electron beam control assembly for a scanning electron beam computed tomography scanner
US4644168A (en) * 1984-05-14 1987-02-17 Imatron Inc. Electron beam deflecting magnet assembly for a scanning electron beam computed tomography scanner
US4736396A (en) * 1984-05-29 1988-04-05 Imatron, Inc. Tomosynthesis using high speed CT scanning system
US4573179A (en) * 1984-05-29 1986-02-25 Imatron, Inc. Scanned projection radiography using high speed computed tomographic scanning system
US4672649A (en) * 1984-05-29 1987-06-09 Imatron, Inc. Three dimensional scanned projection radiography using high speed computed tomographic scanning system
US4944448A (en) * 1986-05-09 1990-07-31 Imatron, Inc. Composite electron beam target for use in X-ray imaging system and method of making same
EP0269927B1 (fr) * 1986-11-25 1993-05-05 Siemens Aktiengesellschaft Appareil de tomographie assisté par ordinateur
EP0370124B1 (fr) * 1988-11-22 1993-07-14 Siemens Aktiengesellschaft Tomographie par ordinateur
EP0455177A3 (en) * 1990-04-30 1992-05-20 Shimadzu Corporation High-speed scan type x-ray generator
US5490193A (en) * 1990-07-23 1996-02-06 Hitachi, Ltd. X-ray computed tomography system
EP0481103B1 (fr) * 1990-10-15 1994-12-21 Siemens Aktiengesellschaft Tomodensitomètre avec faisceau électronique dévié suivant une trajectoire circulaire
DE4103588C1 (fr) * 1991-02-06 1992-05-27 Siemens Ag, 8000 Muenchen, De
US5197088A (en) * 1991-05-03 1993-03-23 Bruker Analytic Electron beam x-ray computer tomography scanner
US5224137A (en) * 1991-05-23 1993-06-29 Imatron, Inc. Tuning the scanning electron beam computed tomography scanner
US5212737A (en) * 1991-09-30 1993-05-18 Imatron, Inc. Real time data averager for use in computed tomography scanning
DE4139150C1 (en) * 1991-11-28 1993-06-24 Siemens Ag, 8000 Muenchen, De Computer tomograph with part ring formed X=ray source and detector - has double ring system without complementary interpolation
US5193105A (en) * 1991-12-18 1993-03-09 Imatron, Inc. Ion controlling electrode assembly for a scanning electron beam computed tomography scanner
DE69320814T2 (de) * 1992-06-26 1999-01-14 Siemens Ag Vorrichtung zum kombinieren von detektorausgängen eines strahlungsabtastsystems
US5386445A (en) * 1993-12-14 1995-01-31 Imatron, Inc. Method and apparatus for electron beam focusing adjustment by electrostatic control of the distribution of beam-generated positive ions in a scanning electron beam computed tomography scanner
US5491734A (en) * 1993-12-14 1996-02-13 Imatron, Inc. Off-axis scanning electron beam computed tomography system
US5406479A (en) * 1993-12-20 1995-04-11 Imatron, Inc. Method for rebinning and for correcting cone beam error in a fan beam computed tomographic scanner system
DE4409365C1 (de) * 1994-03-18 1995-03-16 Siemens Ag Röntgencomputertomograph
US5442673A (en) * 1994-03-30 1995-08-15 Siemens Aktiengesellschaft Fixed septum collimator for electron beam tomography
DE4413689C1 (de) * 1994-04-20 1995-06-08 Siemens Ag Röntgencomputertomograph
DE4433133C1 (de) * 1994-09-16 1995-12-07 Siemens Ag Röntgenstrahler mit einer Elektronenquelle zum Senden eines Bündels von Elektronen entlang einer langgestreckten Anode
DE4434704C1 (de) * 1994-09-28 1995-06-29 Siemens Ag Röntgenröhre mit einem ringförmigen Vakuumgehäuse
DE19510047C2 (de) * 1995-03-20 1998-11-05 Siemens Ag Anode für eine Röntgenröhre
DE19514332C1 (de) * 1995-04-18 1996-07-25 Siemens Ag Röntgencomputertomograph
US5719914A (en) * 1995-11-13 1998-02-17 Imatron, Inc. Method for correcting spherical aberration of the electron beam in a scanning electron beam computed tomography system
DE19617131C2 (de) * 1996-04-29 2001-05-23 Siemens Ag Röntgen-Computertomograph
DE19618749A1 (de) * 1996-05-09 1997-11-13 Siemens Ag Röntgen-Computertomograph
DE19710222A1 (de) * 1997-03-12 1998-09-17 Siemens Ag Röntgenstrahlerzeuger
DE19721981C1 (de) * 1997-05-26 1998-09-24 Siemens Ag Röntgen-Computertomograph mit elektronischer Abtastung einer ringförmigen Anode
US6009146A (en) * 1997-06-23 1999-12-28 Adler; Richard J. MeVScan transmission x-ray and x-ray system utilizing a stationary collimator method and apparatus
US6160869A (en) * 1998-10-01 2000-12-12 Imatron, Inc. Chicane magnet focusing system and deflection magnet for a scanning electron beam computed tomography system
US6421420B1 (en) * 1998-12-01 2002-07-16 American Science & Engineering, Inc. Method and apparatus for generating sequential beams of penetrating radiation
US6181765B1 (en) * 1998-12-10 2001-01-30 General Electric Company X-ray tube assembly
US6130929A (en) * 1998-12-11 2000-10-10 Imatron, Inc. Method for eliminating artifacts in scanning electron beam computed tomographic images due to cone beam geometry
US6208711B1 (en) * 1999-09-21 2001-03-27 Imatron, Inc. Method and apparatus for clearing ions in a scanning electron beam computed tomographic system using a single potential power source
US6628745B1 (en) * 2000-07-01 2003-09-30 Martin Annis Imaging with digital tomography and a rapidly moving x-ray source
US6876724B2 (en) * 2000-10-06 2005-04-05 The University Of North Carolina - Chapel Hill Large-area individually addressable multi-beam x-ray system and method of forming same
US6735271B1 (en) 2000-11-28 2004-05-11 Ge Medical Systems Global Technology Company Llc Electron beam computed tomographic scanner system with helical or tilted target, collimator, and detector components to eliminate cone beam error and to scan continuously moving objects
US6687332B2 (en) * 2002-03-08 2004-02-03 Ge Medical Systems Global Technology Company, Llc Method and apparatus for patient-in-place measurement and real-time control of beam-spot position and shape in a scanning electron beam computed tomographic system
US6670625B1 (en) * 2002-06-18 2003-12-30 Ge Medical Systems Global Technology Company, Llc Method and apparatus for correcting multipole aberrations of an electron beam in an EBT scanner
US6792077B2 (en) * 2002-06-19 2004-09-14 Ge Medical Systems Global Technology Company, Llc Collimation system for dual slice EBT scanner
US6904118B2 (en) * 2002-07-23 2005-06-07 General Electric Company Method and apparatus for generating a density map using dual-energy CT
US6891321B2 (en) * 2002-11-12 2005-05-10 Ge Medical Systems Global Technology Company, Llc Oil-free electron source having cathode and anode members adjustable with five degrees of freedom
US7447536B2 (en) * 2002-11-12 2008-11-04 G.E. Medical Systems Global Technology Company, Llc System and method for measurement of local lung function using electron beam CT
US6789943B2 (en) * 2002-11-12 2004-09-14 Ge Medical Systems Global Technology Company, Llc Method and apparatus for scatter measurement using an occluded detector ring
US6952466B2 (en) * 2002-11-12 2005-10-04 Ge Medical Systems Global Technology Company, Llc Oil-free electron source for an EBT scanner
US6842499B2 (en) * 2002-11-15 2005-01-11 Ge Medical Systems Global Technology Company, Llc Method and apparatus for connecting temporally separated sinograms in an EBT scanner
US7949101B2 (en) * 2005-12-16 2011-05-24 Rapiscan Systems, Inc. X-ray scanners and X-ray sources therefor
GB0309379D0 (en) * 2003-04-25 2003-06-04 Cxr Ltd X-ray scanning
US7033076B2 (en) * 2003-08-27 2006-04-25 Ge Medical Systems Global Technology Company, Llc Method of stabilizing an x-ray source of an electron beam tomography system
US7280631B2 (en) * 2003-11-26 2007-10-09 General Electric Company Stationary computed tomography system and method
US7023950B1 (en) * 2004-02-11 2006-04-04 Martin Annis Method and apparatus for determining the position of an x-ray cone beam produced by a scanning electron beam
JP2007534415A (ja) * 2004-04-28 2007-11-29 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ ３次元電子ビームコンピュータ断層撮影
US7049616B2 (en) * 2004-05-17 2006-05-23 General Electric Company Methods, apparatus, and software for adjusting the focal spot of an electron beam
US7218700B2 (en) * 2004-05-28 2007-05-15 General Electric Company System for forming x-rays and method for using same
US7372937B2 (en) * 2004-07-16 2008-05-13 University Of Iowa Research Foundation Systems and methods of non-standard spiral cone-beam computed tomograpy (CT)
US7835562B2 (en) * 2004-07-23 2010-11-16 General Electric Company Methods and apparatus for noise reduction filtering of images
ATE499600T1 (de) * 2004-12-17 2011-03-15 Koninkl Philips Electronics Nv Elektronencomputertomografie und elektronencomputertomograf
DE102004061347B3 (de) * 2004-12-20 2006-09-28 Siemens Ag Röntgen-Computertomograph für schnelle Bildaufzeichung
US7295651B2 (en) * 2005-06-30 2007-11-13 General Electric Company Stationary computed tomography system and method
EP1899750B1 (fr) * 2005-07-05 2013-10-02 L-3 Communications Security and Detection Systems, Inc. Procedes et dispositif de balayage par faisceau d'electrons
US7281850B2 (en) * 2005-10-03 2007-10-16 General Electric Company Method and apparatus for aligning a fourth generation computed tomography system
EP1883093B1 (fr) * 2006-07-28 2011-11-16 Jan Forster Tomodensitomètre
US7706499B2 (en) * 2006-08-30 2010-04-27 General Electric Company Acquisition and reconstruction of projection data using a stationary CT geometry
US7616731B2 (en) * 2006-08-30 2009-11-10 General Electric Company Acquisition and reconstruction of projection data using a stationary CT geometry
US7835486B2 (en) * 2006-08-30 2010-11-16 General Electric Company Acquisition and reconstruction of projection data using a stationary CT geometry
DE102007008349B4 (de) * 2007-02-20 2009-10-15 Forschungszentrum Dresden - Rossendorf E.V. Anordnung zur Röntgen-Computertomographie
US7639785B2 (en) * 2007-02-21 2009-12-29 L-3 Communications Corporation Compact scanned electron-beam x-ray source
DE102007036038A1 (de) * 2007-08-01 2009-02-05 Siemens Ag Röntgen-Computertomograph der 5ten Generation
DE102008005718A1 (de) * 2008-01-23 2009-07-30 Forschungszentrum Dresden - Rossendorf E.V. Anordnung zur dreidimensionalen Elektronenstrahltomographie
US7940894B2 (en) * 2008-05-22 2011-05-10 Vladimir Balakin Elongated lifetime X-ray method and apparatus used in conjunction with a charged particle cancer therapy system
US7939809B2 (en) * 2008-05-22 2011-05-10 Vladimir Balakin Charged particle beam extraction method and apparatus used in conjunction with a charged particle cancer therapy system
US7899156B2 (en) * 2008-07-16 2011-03-01 L-3 Communications Security And Detection Systems, Inc. Irradiation system including an electron-beam scanner
US7869571B2 (en) * 2008-09-17 2011-01-11 General Electric Company Methods and apparatus for x-ray imaging with focal spot deflection
US8530849B2 (en) * 2008-09-22 2013-09-10 Telesecurity Sciences, Inc. Electron beam scanner
US8625738B2 (en) * 2008-09-22 2014-01-07 Telesecurity Sciences, Inc. Radiation therapy and scanning system
US7872241B2 (en) * 2008-11-19 2011-01-18 Telesecurity Sciences, Inc. Method and apparatus for production and maintenance of electron beam space-charge neutralization
DE102009002114B4 (de) * 2009-04-01 2012-03-15 Helmholtz-Zentrum Dresden - Rossendorf E.V. Anordnung zur Elektronenstrahltomographie
WO2010129058A2 (fr) * 2009-05-08 2010-11-11 L-3 Communications Security and Detection Systems Inc. Système d'imagerie biénergie
US8594272B2 (en) * 2010-03-19 2013-11-26 Triple Ring Technologies, Inc. Inverse geometry volume computed tomography systems
US8483361B2 (en) * 2010-12-22 2013-07-09 General Electric Company Anode target for an x-ray tube and method for controlling the x-ray tube
US8774351B2 (en) * 2011-04-05 2014-07-08 Triple Ring Technologies, Inc. Method and apparatus for advanced X-ray imaging systems
US9460823B2 (en) * 2012-09-10 2016-10-04 Telesecurity Sciences, Inc. Dynamic beam aperture control to reduce radiation dose using collimator
CN103913473B (zh) * 2012-12-31 2017-02-08 清华大学 Ct设备及其方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2014166468A1 *

Also Published As

Publication number Publication date
JP2016510162A (ja) 2016-04-04
EP2984672B1 (fr) 2019-03-13
JP6099227B2 (ja) 2017-03-22
US20160027606A1 (en) 2016-01-28
DE102013206252A1 (de) 2014-10-09
WO2014166468A1 (fr) 2014-10-16

Similar Documents

Publication Publication Date Title
EP1883093B1 (fr) Tomodensitomètre
DE4409365C1 (de) Röntgencomputertomograph
DE4434704C1 (de) Röntgenröhre mit einem ringförmigen Vakuumgehäuse
DE202013105804U1 (de) Vorrichtungen zum Erzeugen verteilter Röntgenstrahlen
EP2353647B1 (fr) Dispositif doté d'une combinaison à partir d'un dispositif à résonance magnétique et d'un dispositif de thérapie par rayonnement
EP2238908A1 (fr) Arrangement de tomodensitométre à faisceau électronique
DE102010001746B4 (de) Vorrichtung mit einer Kombination aus einer Magnetresonanzvorrichtung und einer Strahlentherapievorrichtung
DE102008050352B4 (de) Multi-Strahl-Röntgenvorrichtung
DE102009021740A1 (de) Strahlentherapiegerät mit einer bildgebenden Einheit
JP2019084426A (ja) 放射線治療システムのためのエネルギー分解器
EP2252216B1 (fr) Agencement pour tomographie à faisceau d'électrons en trois dimensions
EP2984672A1 (fr) Dispositif de tomodensitométrie rapide par faisceau d'électrons
DE212014000043U1 (de) Röntgenstrahlenquelle mit verbesserter Target-Lebensdauer
EP2940457B1 (fr) Dispositif de tomographie assistée par ordinateur (ct)
DE102008050353B3 (de) Kreisförmige Multi-Strahl-Röntgenvorrichtung
WO2013007484A1 (fr) Source de rayons x monochromatique
EP2940459B1 (fr) Dispositif de tomographique informatisée et son procédé
DE102009035439A1 (de) Röntgen-CT-System zur tomographischen Darstellung eines Untersuchungsobjektes, aufweisend eine Röntgenröhre zur Erzeugung von Röntgenstrahlung
DE102006029198A1 (de) Computertomographie-System und Verfahren zur Erzeugung von Schnittbildaufnahmen
WO2008101470A1 (fr) Installation de tomodensitométrie à rayons x
DE102016101787A1 (de) Tomographievorrichtung
DE102007019176A1 (de) Computertomograph
DE102009049663A1 (de) Feldemission-Röntgenquelle mit magnetischem Brennpunkt-Screening
DE102005018342A1 (de) Vorrichtung und Verfahren zur Erzeugung von Röntgenstrahlung
DE102016218889A1 (de) Medizinisches Bildgebungssystem zur kombinierten Magnetresonanz- und Röntgenbildgebung eines Untersuchungsobjektes mit einem Röntgenstrahler und Röntgenstrahler

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20151109

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20181026

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 1108846

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190315

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502014011116

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20190313

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190613

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190313

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190313

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190313

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190313

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190313

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190313

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190313

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190613

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190614

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190313

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190713

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190313

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190313

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190313

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190313

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190313

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190313

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190313

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190313

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502014011116

Country of ref document: DE

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20190430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190713

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190402

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190430

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190430

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190313

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190313

26N No opposition filed

Effective date: 20191216

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20190613

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190430

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190313

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190313

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190402

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190613

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190513

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1108846

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190402

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190402

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190313

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20140402

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190313

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190313

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230430

Year of fee payment: 10