WO2012007881A3 - X-ray tube arrangement with toroidal rotatable filter arrangement and computed tomography device comprising same - Google Patents

X-ray tube arrangement with toroidal rotatable filter arrangement and computed tomography device comprising same Download PDF

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Publication number
WO2012007881A3
WO2012007881A3 PCT/IB2011/053012 IB2011053012W WO2012007881A3 WO 2012007881 A3 WO2012007881 A3 WO 2012007881A3 IB 2011053012 W IB2011053012 W IB 2011053012W WO 2012007881 A3 WO2012007881 A3 WO 2012007881A3
Authority
WO
WIPO (PCT)
Prior art keywords
filter
arrangement
toroidal
ray tube
same
Prior art date
Application number
PCT/IB2011/053012
Other languages
French (fr)
Other versions
WO2012007881A2 (en
Inventor
Rolf Karl Otto Behling
Original Assignee
Koninklijke Philips Electronics N.V.
Philips Intellectual Property & Standards Gmbh
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 Koninklijke Philips Electronics N.V., Philips Intellectual Property & Standards Gmbh filed Critical Koninklijke Philips Electronics N.V.
Publication of WO2012007881A2 publication Critical patent/WO2012007881A2/en
Publication of WO2012007881A3 publication Critical patent/WO2012007881A3/en

Links

Classifications

    • 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
    • G21K1/10—Scattering devices; Absorbing devices; Ionising radiation filters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/40—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis
    • A61B6/4035—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis the source being combined with a filter or grating
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/48—Diagnostic techniques
    • A61B6/482—Diagnostic techniques involving multiple energy imaging
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/16—Vessels; Containers; Shields associated therewith
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computerised tomographs
    • A61B6/032—Transmission computed tomography [CT]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/10—Drive means for anode (target) substrate
    • H01J2235/1046—Bearings and bearing contact surfaces
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/16—Vessels
    • H01J2235/165—Shielding arrangements
    • H01J2235/166—Shielding arrangements against electromagnetic radiation

Abstract

An X-ray tube arrangement (120) for dual energy operation is proposed. The arrangement comprises an electron source (210) for emitting an electron beam (215) and a disk-shaped anode (230). Furthermore, a rotatable filter arrangement (125) is provided comprising a toroidal filter (126) with a filter pattern comprising an X-ray absorption portion arranged along a circumference of the toroidal filter (126). The rotatable filter arrangement (125) is adapted to rotate the toroidal filter around a rotation axis (237) orthogonal to the disk-shaped anode (230). The filter arrangement (125) may be attached to the tube housing (122) such that the toroidal filter (126) is held by a bearing (124). Alternatively, the toroidal filter (126) may be attached to the anode (230). Gyroscopic forces resulting upon filter (126) rotation may be reduced especially when applied in a rotating gantry of a CT device.
PCT/IB2011/053012 2010-07-13 2011-07-07 X-ray tube arrangement with toroidal rotatable filter arrangement and computed tomography device comprising same WO2012007881A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP10169443.8 2010-07-13
EP10169443 2010-07-13

Publications (2)

Publication Number Publication Date
WO2012007881A2 WO2012007881A2 (en) 2012-01-19
WO2012007881A3 true WO2012007881A3 (en) 2012-04-19

Family

ID=44630319

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2011/053012 WO2012007881A2 (en) 2010-07-13 2011-07-07 X-ray tube arrangement with toroidal rotatable filter arrangement and computed tomography device comprising same

Country Status (1)

Country Link
WO (1) WO2012007881A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9320481B2 (en) 2014-03-31 2016-04-26 General Electric Company Systems and methods for X-ray imaging

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4433431A (en) * 1981-05-05 1984-02-21 Siemens Aktiengesellschaft Rotating anode x-ray tube
JPS6237853A (en) * 1985-08-13 1987-02-18 Toshiba Corp X-ray tube device with magnetic bearing
US20010055365A1 (en) * 2000-06-15 2001-12-27 Hiroto Yasutake Rotary anode type x-ray tube and x-ray tube apparatus provided with the same
US20040086081A1 (en) * 2002-10-30 2004-05-06 Frederic Dahan Assembly for mounting a radiation emitting device, radiation emitting device having such an assembly, and a radiological apparatus having such an assembly and emitting device
US20040247082A1 (en) * 2003-06-05 2004-12-09 Ge Medical Systems Global Technology Company, Llc Ct imaging system with multiple peak x-ray source
US20100127589A1 (en) * 2007-04-25 2010-05-27 Siemens Aktiengesellschaft Bearing device having a shaft which is mounted magnetically such that it can rotate about an axis with respect to a stator, and having a damping apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080232549A1 (en) 2005-08-09 2008-09-25 Koninklijke Philips Electronics, N.V. System and Method For Dual Energy Dynamica X-Ray Imaging

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4433431A (en) * 1981-05-05 1984-02-21 Siemens Aktiengesellschaft Rotating anode x-ray tube
JPS6237853A (en) * 1985-08-13 1987-02-18 Toshiba Corp X-ray tube device with magnetic bearing
US20010055365A1 (en) * 2000-06-15 2001-12-27 Hiroto Yasutake Rotary anode type x-ray tube and x-ray tube apparatus provided with the same
US20040086081A1 (en) * 2002-10-30 2004-05-06 Frederic Dahan Assembly for mounting a radiation emitting device, radiation emitting device having such an assembly, and a radiological apparatus having such an assembly and emitting device
US20040247082A1 (en) * 2003-06-05 2004-12-09 Ge Medical Systems Global Technology Company, Llc Ct imaging system with multiple peak x-ray source
US20100127589A1 (en) * 2007-04-25 2010-05-27 Siemens Aktiengesellschaft Bearing device having a shaft which is mounted magnetically such that it can rotate about an axis with respect to a stator, and having a damping apparatus

Also Published As

Publication number Publication date
WO2012007881A2 (en) 2012-01-19

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