JP4297740B2 - 放射線源を動作させる方法及び装置 - Google Patents
放射線源を動作させる方法及び装置 Download PDFInfo
- Publication number
- JP4297740B2 JP4297740B2 JP2003174483A JP2003174483A JP4297740B2 JP 4297740 B2 JP4297740 B2 JP 4297740B2 JP 2003174483 A JP2003174483 A JP 2003174483A JP 2003174483 A JP2003174483 A JP 2003174483A JP 4297740 B2 JP4297740 B2 JP 4297740B2
- Authority
- JP
- Japan
- Prior art keywords
- radiation source
- computer
- detector
- spot
- center
- 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 - Fee Related
Links
- 230000005855 radiation Effects 0.000 title claims description 85
- 238000000034 method Methods 0.000 title description 18
- 238000005070 sampling Methods 0.000 claims description 21
- 238000003384 imaging method Methods 0.000 claims description 12
- 238000009827 uniform distribution Methods 0.000 claims description 4
- 238000010894 electron beam technology Methods 0.000 claims description 2
- 238000002591 computed tomography Methods 0.000 description 17
- 230000004907 flux Effects 0.000 description 10
- 238000009826 distribution Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000013170 computed tomography imaging Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
-
- 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
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
-
- 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
- A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/4021—Arrangements for generating radiation specially adapted for radiation diagnosis involving movement of the focal spot
- A61B6/4028—Arrangements for generating radiation specially adapted for radiation diagnosis involving movement of the focal spot resulting in acquisition of views from substantially different positions, e.g. EBCT
-
- 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
- A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/4035—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 or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/4064—Arrangements for generating radiation specially adapted for radiation diagnosis specially adapted for producing a particular type of beam
- A61B6/4085—Cone-beams
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pulmonology (AREA)
- Theoretical Computer Science (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- X-Ray Techniques (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/064,189 US6754300B2 (en) | 2002-06-20 | 2002-06-20 | Methods and apparatus for operating a radiation source |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2004024872A JP2004024872A (ja) | 2004-01-29 |
| JP2004024872A5 JP2004024872A5 (enExample) | 2008-09-04 |
| JP4297740B2 true JP4297740B2 (ja) | 2009-07-15 |
Family
ID=29717753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003174483A Expired - Fee Related JP4297740B2 (ja) | 2002-06-20 | 2003-06-19 | 放射線源を動作させる方法及び装置 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6754300B2 (enExample) |
| EP (1) | EP1374776B1 (enExample) |
| JP (1) | JP4297740B2 (enExample) |
| DE (1) | DE60330207D1 (enExample) |
Families Citing this family (52)
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| US7082182B2 (en) * | 2000-10-06 | 2006-07-25 | The University Of North Carolina At Chapel Hill | Computed tomography system for imaging of human and small animal |
| US6904118B2 (en) * | 2002-07-23 | 2005-06-07 | General Electric Company | Method and apparatus for generating a density map using dual-energy CT |
| US8275091B2 (en) | 2002-07-23 | 2012-09-25 | Rapiscan Systems, Inc. | Compact mobile cargo scanning system |
| US7813473B2 (en) * | 2002-07-23 | 2010-10-12 | General Electric Company | Method and apparatus for generating temporally interpolated projections |
| US7963695B2 (en) | 2002-07-23 | 2011-06-21 | Rapiscan Systems, Inc. | Rotatable boom cargo scanning system |
| GB0309371D0 (en) | 2003-04-25 | 2003-06-04 | Cxr Ltd | X-Ray tubes |
| US9113839B2 (en) | 2003-04-25 | 2015-08-25 | Rapiscon Systems, Inc. | X-ray inspection system and method |
| US7949101B2 (en) | 2005-12-16 | 2011-05-24 | Rapiscan Systems, Inc. | X-ray scanners and X-ray sources therefor |
| GB0309383D0 (en) | 2003-04-25 | 2003-06-04 | Cxr Ltd | X-ray tube electron sources |
| GB0309379D0 (en) | 2003-04-25 | 2003-06-04 | Cxr Ltd | X-ray scanning |
| US8223919B2 (en) | 2003-04-25 | 2012-07-17 | Rapiscan Systems, Inc. | X-ray tomographic inspection systems for the identification of specific target items |
| GB0309385D0 (en) | 2003-04-25 | 2003-06-04 | Cxr Ltd | X-ray monitoring |
| GB0525593D0 (en) | 2005-12-16 | 2006-01-25 | Cxr Ltd | X-ray tomography inspection systems |
| US8243876B2 (en) | 2003-04-25 | 2012-08-14 | Rapiscan Systems, Inc. | X-ray scanners |
| US9208988B2 (en) | 2005-10-25 | 2015-12-08 | Rapiscan Systems, Inc. | Graphite backscattered electron shield for use in an X-ray tube |
| GB2436713B (en) * | 2003-04-25 | 2008-02-06 | Cxr Ltd | X-ray tube electron sources |
| US8094784B2 (en) | 2003-04-25 | 2012-01-10 | Rapiscan Systems, Inc. | X-ray sources |
| US8451974B2 (en) | 2003-04-25 | 2013-05-28 | Rapiscan Systems, Inc. | X-ray tomographic inspection system for the identification of specific target items |
| US10483077B2 (en) | 2003-04-25 | 2019-11-19 | Rapiscan Systems, Inc. | X-ray sources having reduced electron scattering |
| US8804899B2 (en) | 2003-04-25 | 2014-08-12 | Rapiscan Systems, Inc. | Imaging, data acquisition, data transmission, and data distribution methods and systems for high data rate tomographic X-ray scanners |
| GB0309387D0 (en) | 2003-04-25 | 2003-06-04 | Cxr Ltd | X-Ray scanning |
| GB0812864D0 (en) | 2008-07-15 | 2008-08-20 | Cxr Ltd | Coolign anode |
| US8837669B2 (en) | 2003-04-25 | 2014-09-16 | Rapiscan Systems, Inc. | X-ray scanning system |
| US6928141B2 (en) | 2003-06-20 | 2005-08-09 | Rapiscan, Inc. | Relocatable X-ray imaging system and method for inspecting commercial vehicles and cargo containers |
| US7639774B2 (en) * | 2003-12-23 | 2009-12-29 | General Electric Company | Method and apparatus for employing multiple axial-sources |
| US7333587B2 (en) * | 2004-02-27 | 2008-02-19 | General Electric Company | Method and system for imaging using multiple offset X-ray emission points |
| US7173996B2 (en) * | 2004-07-16 | 2007-02-06 | General Electric Company | Methods and apparatus for 3D reconstruction in helical cone beam volumetric CT |
| US7471764B2 (en) | 2005-04-15 | 2008-12-30 | Rapiscan Security Products, Inc. | X-ray imaging system having improved weather resistance |
| US8155262B2 (en) * | 2005-04-25 | 2012-04-10 | The University Of North Carolina At Chapel Hill | Methods, systems, and computer program products for multiplexing computed tomography |
| US9046465B2 (en) | 2011-02-24 | 2015-06-02 | Rapiscan Systems, Inc. | Optimization of the source firing pattern for X-ray scanning systems |
| US8189893B2 (en) * | 2006-05-19 | 2012-05-29 | The University Of North Carolina At Chapel Hill | Methods, systems, and computer program products for binary multiplexing x-ray radiography |
| US7486760B2 (en) * | 2006-08-15 | 2009-02-03 | Ge Security, Inc. | Compact systems and methods for generating a diffraction profile |
| US7778386B2 (en) * | 2006-08-28 | 2010-08-17 | General Electric Company | Methods for analytic reconstruction for mult-source inverse geometry CT |
| US7835486B2 (en) * | 2006-08-30 | 2010-11-16 | General Electric Company | Acquisition and reconstruction of projection data using a stationary CT geometry |
| US20080056432A1 (en) * | 2006-08-30 | 2008-03-06 | General Electric Company | Reconstruction of CT projection data |
| US7616731B2 (en) * | 2006-08-30 | 2009-11-10 | General Electric Company | Acquisition and reconstruction of projection data using a stationary CT geometry |
| US7706499B2 (en) * | 2006-08-30 | 2010-04-27 | General Electric Company | Acquisition and reconstruction of projection data using a stationary CT geometry |
| US7428292B2 (en) * | 2006-11-24 | 2008-09-23 | General Electric Company | Method and system for CT imaging using multi-spot emission sources |
| GB0803644D0 (en) | 2008-02-28 | 2008-04-02 | Rapiscan Security Products Inc | Scanning systems |
| GB0803641D0 (en) | 2008-02-28 | 2008-04-02 | Rapiscan Security Products Inc | Scanning systems |
| GB0809110D0 (en) | 2008-05-20 | 2008-06-25 | Rapiscan Security Products Inc | Gantry scanner systems |
| GB0816823D0 (en) | 2008-09-13 | 2008-10-22 | Cxr Ltd | X-ray tubes |
| US8600003B2 (en) | 2009-01-16 | 2013-12-03 | The University Of North Carolina At Chapel Hill | Compact microbeam radiation therapy systems and methods for cancer treatment and research |
| GB0901338D0 (en) | 2009-01-28 | 2009-03-11 | Cxr Ltd | X-Ray tube electron sources |
| DE102009012631B4 (de) * | 2009-03-11 | 2011-07-28 | Bayer Schering Pharma Aktiengesellschaft, 13353 | Filter für einen Computertomographen sowie Computertomograph |
| DE102009020400B4 (de) * | 2009-05-08 | 2016-04-21 | Siemens Aktiengesellschaft | Verfahren und Vorrichtung zur Bildbestimmung aus beim Durchlaufen einer Trajektorie aufgenommenen Röntgenprojektionen |
| DE102009057066B4 (de) * | 2009-12-04 | 2021-09-30 | Siemens Healthcare Gmbh | Strahlentherapiegerät mit einer Bildgebungsvorrichtung und Verfahren zur Erzeugung eines Bildes |
| US8358739B2 (en) | 2010-09-03 | 2013-01-22 | The University Of North Carolina At Chapel Hill | Systems and methods for temporal multiplexing X-ray imaging |
| US9218933B2 (en) | 2011-06-09 | 2015-12-22 | Rapidscan Systems, Inc. | Low-dose radiographic imaging system |
| AU2014212158B2 (en) | 2013-01-31 | 2017-04-20 | Rapiscan Systems, Inc. | Portable security inspection system |
| WO2021051191A1 (en) | 2019-09-16 | 2021-03-25 | Voti Inc. | Probabilistic image analysis |
| US11551903B2 (en) | 2020-06-25 | 2023-01-10 | American Science And Engineering, Inc. | Devices and methods for dissipating heat from an anode of an x-ray tube assembly |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4682291A (en) * | 1984-10-26 | 1987-07-21 | Elscint Ltd. | Noise artifacts reduction |
| US4728893A (en) * | 1985-07-31 | 1988-03-01 | The Regents Of The University Of California | Increased signal-to-noise ratio in magnetic resonance images using synthesized conjugate symmetric data |
| US5459319A (en) * | 1988-02-23 | 1995-10-17 | The Boeing Company | Radiation detector circuit having a 1-bit quantized output |
| US5799111A (en) * | 1991-06-14 | 1998-08-25 | D.V.P. Technologies, Ltd. | Apparatus and methods for smoothing images |
| JP3468372B2 (ja) * | 1992-09-07 | 2003-11-17 | 株式会社日立メディコ | 定位的放射線治療装置 |
| KR970009469B1 (ko) * | 1993-06-05 | 1997-06-13 | 삼성전자 주식회사 | 더블스무딩(Double Smoothing) 기능을 갖는 비월/순차주사변환장치 및 그 방법 |
| DE19502576B4 (de) * | 1994-02-25 | 2004-04-15 | Siemens Ag | Computertomograph mit Spiralabtastung |
| US5778046A (en) * | 1996-01-19 | 1998-07-07 | The Regents Of The University Of California | Automatic X-ray Beam Equalizer |
| US5663995A (en) * | 1996-06-06 | 1997-09-02 | General Electric Company | Systems and methods for reconstructing an image in a CT system performing a cone beam helical scan |
| US5809178A (en) * | 1996-06-11 | 1998-09-15 | Apple Computer, Inc. | Elimination of visible quantizing artifacts in a digital image utilizing a critical noise/quantizing factor |
| EP0823691B1 (en) * | 1996-08-08 | 2003-12-17 | Agfa-Gevaert | Method of correcting a radiation image for defects in the recording member |
| US5818896A (en) * | 1996-11-18 | 1998-10-06 | General Electric Company | Methods and apparatus for three-dimensional and maximum intensity projection image reconstruction in a computed tomography system |
| US6164847A (en) * | 1997-01-28 | 2000-12-26 | Agfa Corporation | Imaging parameter detection |
| US6069979A (en) * | 1997-02-25 | 2000-05-30 | Eastman Kodak Company | Method for compressing the dynamic range of digital projection radiographic images |
| SE9700772D0 (sv) * | 1997-03-03 | 1997-03-03 | Ericsson Telefon Ab L M | A high resolution post processing method for a speech decoder |
| US5805663A (en) * | 1997-05-08 | 1998-09-08 | Futec, Inc. | Radiation imaging method and system |
| US6069982A (en) * | 1997-12-23 | 2000-05-30 | Polaroid Corporation | Estimation of frequency dependence and grey-level dependence of noise in an image |
| DE19835296A1 (de) * | 1998-08-05 | 2000-02-10 | Philips Corp Intellectual Pty | Computertomograph mit kegelförmigen Strahlenbündel und helixförmiger Abtastbahn |
| US6280084B1 (en) * | 1998-08-25 | 2001-08-28 | General Electric Company | Methods and apparatus for indirect high voltage verification in an imaging system |
| US6215115B1 (en) * | 1998-11-12 | 2001-04-10 | Raytheon Company | Accurate target detection system for compensating detector background levels and changes in signal environments |
| DE19959092A1 (de) * | 1999-12-08 | 2001-06-13 | Philips Corp Intellectual Pty | Verfahren zur Kombination von Rekonstruktionsbildern |
| US6333968B1 (en) * | 2000-05-05 | 2001-12-25 | The United States Of America As Represented By The Secretary Of The Navy | Transmission cathode for X-ray production |
| DE10038328A1 (de) * | 2000-08-05 | 2002-02-14 | Philips Corp Intellectual Pty | Computertomograph mit kegelförmigen Strahlenbündel und helixförmiger Relativbewegung |
-
2002
- 2002-06-20 US US10/064,189 patent/US6754300B2/en not_active Expired - Lifetime
-
2003
- 2003-06-18 EP EP03253828A patent/EP1374776B1/en not_active Expired - Lifetime
- 2003-06-18 DE DE60330207T patent/DE60330207D1/de not_active Expired - Lifetime
- 2003-06-19 JP JP2003174483A patent/JP4297740B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US20030235267A1 (en) | 2003-12-25 |
| EP1374776A1 (en) | 2004-01-02 |
| EP1374776B1 (en) | 2009-11-25 |
| DE60330207D1 (de) | 2010-01-07 |
| US6754300B2 (en) | 2004-06-22 |
| JP2004024872A (ja) | 2004-01-29 |
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