NO841579L - Fremgangsmaate og anordning for styring og fokusering av et tomografiapparat - Google Patents
Fremgangsmaate og anordning for styring og fokusering av et tomografiapparatInfo
- Publication number
- NO841579L NO841579L NO841579A NO841579A NO841579L NO 841579 L NO841579 L NO 841579L NO 841579 A NO841579 A NO 841579A NO 841579 A NO841579 A NO 841579A NO 841579 L NO841579 L NO 841579L
- Authority
- NO
- Norway
- Prior art keywords
- focusing
- electron
- anode
- hole
- focusing plane
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 19
- 238000003325 tomography Methods 0.000 title claims description 11
- 238000010894 electron beam technology Methods 0.000 claims description 28
- 230000001133 acceleration Effects 0.000 claims description 5
- 238000002048 anodisation reaction Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000009795 derivation Methods 0.000 description 3
- 238000010304 firing Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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
-
- 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
-
- 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
-
- 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
- H05G1/70—Circuit arrangements for X-ray tubes with more than one anode; Circuit arrangements for apparatus comprising more than one X ray tube or more than one cathode
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- High Energy & Nuclear Physics (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pulmonology (AREA)
- Theoretical Computer Science (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- X-Ray Techniques (AREA)
- Eye Examination Apparatus (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI822880A FI822880L (fi) | 1982-08-19 | 1982-08-19 | Foerfarande och anordning foer styrning och fokusering av en tomografiapparat |
Publications (1)
Publication Number | Publication Date |
---|---|
NO841579L true NO841579L (no) | 1984-04-18 |
Family
ID=8515926
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO841579A NO841579L (no) | 1982-08-19 | 1984-04-18 | Fremgangsmaate og anordning for styring og fokusering av et tomografiapparat |
Country Status (9)
Country | Link |
---|---|
US (1) | US4669102A (fr) |
EP (1) | EP0116622B1 (fr) |
JP (1) | JPS59501429A (fr) |
AU (1) | AU567437B2 (fr) |
DE (2) | DE8390478U1 (fr) |
DK (1) | DK203084D0 (fr) |
FI (1) | FI822880L (fr) |
NO (1) | NO841579L (fr) |
WO (1) | WO1984000848A1 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4606061A (en) * | 1983-12-28 | 1986-08-12 | Tokyo Shibaura Denki Kabushiki Kaisha | Light controlled x-ray scanner |
US4755994A (en) * | 1985-09-06 | 1988-07-05 | Republic Telcom Systems Corporation | Capacity expander for telephone line |
DE4015105C3 (de) * | 1990-05-11 | 1997-06-19 | Bruker Analytische Messtechnik | Röntgen-Computer-Tomographie-System |
DE4015180A1 (de) * | 1990-05-11 | 1991-11-28 | Bruker Analytische Messtechnik | Roentgen-computer-tomographie-system mit geteiltem detektorring |
US5197088A (en) * | 1991-05-03 | 1993-03-23 | Bruker Analytic | Electron beam x-ray computer tomography scanner |
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 |
WO2007135614A1 (fr) * | 2006-05-22 | 2007-11-29 | Philips Intellectual Property & Standards Gmbh | Tube radiogène à faisceau d'électrons manipulé de manière synchrone au mouvement rotatif de l'anode |
DE102012005767A1 (de) * | 2012-03-25 | 2013-09-26 | DüRR DENTAL AG | Phasenkontrast-Röntgen-Tomographiegerät |
CN103908277B (zh) * | 2012-12-31 | 2017-03-08 | 清华大学 | Ct设备及其方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4045672A (en) * | 1975-09-11 | 1977-08-30 | Nihon Denshi Kabushiki Kaisha | Apparatus for tomography comprising a pin hole for forming a microbeam of x-rays |
NL7611391A (nl) * | 1975-10-18 | 1977-04-20 | Emi Ltd | Roentgentoestel. |
GB1568782A (en) * | 1976-02-28 | 1980-06-04 | Jeol Ltd | Apparatus for obtaining an x-ray image of a slice plane of an object |
JPS53124996A (en) * | 1977-03-17 | 1978-10-31 | Haimuson Jieekobu | Method of and device for generating and directing high intensity xxray |
US4300051A (en) * | 1978-06-29 | 1981-11-10 | Spire Corporation | Traveling cathode X-ray source |
JPS5546408A (en) * | 1978-09-29 | 1980-04-01 | Toshiba Corp | X-ray device |
GB2042790B (en) * | 1979-02-20 | 1982-12-15 | Emi Ltd | Conical scanning x-ray tubes |
JPS5622037A (en) * | 1979-07-31 | 1981-03-02 | Shimadzu Corp | X-ray tube device |
US4287425A (en) * | 1979-12-31 | 1981-09-01 | Pfizer, Incorporated | Construction of a CT scanner using heavy ions or protons |
-
1982
- 1982-08-19 FI FI822880A patent/FI822880L/fi not_active Application Discontinuation
-
1983
- 1983-08-19 JP JP58502893A patent/JPS59501429A/ja active Pending
- 1983-08-19 DE DE19838390478U patent/DE8390478U1/de not_active Expired
- 1983-08-19 EP EP83902815A patent/EP0116622B1/fr not_active Expired
- 1983-08-19 AU AU19440/83A patent/AU567437B2/en not_active Ceased
- 1983-08-19 US US06/604,626 patent/US4669102A/en not_active Expired - Fee Related
- 1983-08-19 DE DE19833390160 patent/DE3390160T1/de not_active Withdrawn
- 1983-08-19 WO PCT/FI1983/000059 patent/WO1984000848A1/fr active IP Right Grant
-
1984
- 1984-04-18 DK DK2030/84A patent/DK203084D0/da not_active Application Discontinuation
- 1984-04-18 NO NO841579A patent/NO841579L/no unknown
Also Published As
Publication number | Publication date |
---|---|
FI822880L (fi) | 1984-02-20 |
DE3390160T1 (de) | 1984-11-29 |
JPS59501429A (ja) | 1984-08-09 |
US4669102A (en) | 1987-05-26 |
DK203084A (da) | 1984-04-18 |
DK203084D0 (da) | 1984-04-18 |
EP0116622A1 (fr) | 1984-08-29 |
WO1984000848A1 (fr) | 1984-03-01 |
AU567437B2 (en) | 1987-11-19 |
EP0116622B1 (fr) | 1988-06-08 |
DE8390478U1 (de) | 1985-01-31 |
AU1944083A (en) | 1984-03-07 |
FI822880A0 (fi) | 1982-08-19 |
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