FR2304320A1 - Appareil de tomographie avec compensation des variations de spectre d'energie de la source de rayonnement - Google Patents
Appareil de tomographie avec compensation des variations de spectre d'energie de la source de rayonnementInfo
- Publication number
- FR2304320A1 FR2304320A1 FR7607825A FR7607825A FR2304320A1 FR 2304320 A1 FR2304320 A1 FR 2304320A1 FR 7607825 A FR7607825 A FR 7607825A FR 7607825 A FR7607825 A FR 7607825A FR 2304320 A1 FR2304320 A1 FR 2304320A1
- Authority
- FR
- France
- Prior art keywords
- compensation
- variations
- radiation source
- energy spectrum
- tomography device
- 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
Links
- 230000005855 radiation Effects 0.000 title 1
- 238000001228 spectrum Methods 0.000 title 1
- 238000003325 tomography Methods 0.000 title 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
- A61B6/58—Testing, adjusting or calibrating thereof
- A61B6/582—Calibration
- A61B6/583—Calibration using calibration phantoms
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S378/00—X-ray or gamma ray systems or devices
- Y10S378/901—Computer tomography program or processor
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)
- Analysing Materials By The Use Of Radiation (AREA)
- Medical Treatment And Welfare Office Work (AREA)
- Measurement Of Radiation (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB11131/75A GB1537487A (en) | 1975-03-18 | 1975-03-18 | Radiography |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2304320A1 true FR2304320A1 (fr) | 1976-10-15 |
FR2304320B1 FR2304320B1 (fr) | 1979-08-31 |
Family
ID=9980619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7607825A Granted FR2304320A1 (fr) | 1975-03-18 | 1976-03-18 | Appareil de tomographie avec compensation des variations de spectre d'energie de la source de rayonnement |
Country Status (8)
Country | Link |
---|---|
US (1) | US4044260A (fr) |
JP (1) | JPS51126086A (fr) |
DE (1) | DE2611532B2 (fr) |
FR (1) | FR2304320A1 (fr) |
GB (1) | GB1537487A (fr) |
HK (1) | HK48779A (fr) |
MY (1) | MY8000021A (fr) |
NL (1) | NL7602700A (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2397179A1 (fr) * | 1977-07-12 | 1979-02-09 | Emi Ltd | Appareil de tomographie a traitement ameliore |
EP0022722A1 (fr) * | 1979-07-17 | 1981-01-21 | Thomson-Csf | Appareil comportant un tomodensitomètre et procédé d'utilisation de cet appareil en cinédensigraphie |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1430088A (en) * | 1972-05-17 | 1976-03-31 | Emi Ltd | Radiography |
US4118628A (en) * | 1975-03-18 | 1978-10-03 | Emi Limited | Radiographic apparatus with correction for radiation hardness variations |
GB1572599A (en) * | 1976-02-10 | 1980-07-30 | Emi Ltd | Radiography |
JPS52151587A (en) * | 1976-04-19 | 1977-12-16 | Varian Associates | Sectional camera scanner |
JPS5396689A (en) * | 1977-01-19 | 1978-08-24 | Varian Associates | Device for and method of reforming data |
AU522916B2 (en) * | 1977-09-30 | 1982-07-01 | Ohio Nuclear | X-ray tomographic apparatus |
FR2519772B1 (fr) * | 1982-01-08 | 1986-01-31 | Thomson Csf | Dispositif de detection de reference pour tomodensitometre multidetecteur et tomodensitometre comportant un tel dispositif |
JPS59155238A (ja) * | 1983-02-24 | 1984-09-04 | 株式会社東芝 | X線ct装置 |
US5416816A (en) * | 1994-01-27 | 1995-05-16 | Boston Test Tool Company | Calibration template for computed radiography |
US5619042A (en) * | 1995-07-20 | 1997-04-08 | Siemens Medical Systems, Inc. | System and method for regulating delivered radiation in a radiation-emitting device |
US5953388A (en) * | 1997-08-18 | 1999-09-14 | George Mason University | Method and apparatus for processing data from a tomographic imaging system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2019365A1 (fr) * | 1968-08-23 | 1970-07-03 | Emi Ltd | |
DE2426343A1 (de) * | 1973-06-01 | 1974-12-12 | Emi Ltd | Vorrichtung zur untersuchung von objekten mittels durchdringender strahlung |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1478123A (en) * | 1973-08-18 | 1977-06-29 | Emi Ltd | Tomography |
-
1975
- 1975-03-18 GB GB11131/75A patent/GB1537487A/en not_active Expired
-
1976
- 1976-03-15 NL NL7602700A patent/NL7602700A/xx active Search and Examination
- 1976-03-16 DE DE2611532A patent/DE2611532B2/de not_active Ceased
- 1976-03-17 JP JP51029034A patent/JPS51126086A/ja active Granted
- 1976-03-18 FR FR7607825A patent/FR2304320A1/fr active Granted
- 1976-03-18 US US05/668,045 patent/US4044260A/en not_active Expired - Lifetime
-
1979
- 1979-07-19 HK HK487/79A patent/HK48779A/xx unknown
-
1980
- 1980-12-31 MY MY198021A patent/MY8000021A/xx unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2019365A1 (fr) * | 1968-08-23 | 1970-07-03 | Emi Ltd | |
DE2426343A1 (de) * | 1973-06-01 | 1974-12-12 | Emi Ltd | Vorrichtung zur untersuchung von objekten mittels durchdringender strahlung |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2397179A1 (fr) * | 1977-07-12 | 1979-02-09 | Emi Ltd | Appareil de tomographie a traitement ameliore |
EP0022722A1 (fr) * | 1979-07-17 | 1981-01-21 | Thomson-Csf | Appareil comportant un tomodensitomètre et procédé d'utilisation de cet appareil en cinédensigraphie |
Also Published As
Publication number | Publication date |
---|---|
JPS51126086A (en) | 1976-11-02 |
US4044260A (en) | 1977-08-23 |
MY8000021A (en) | 1980-12-31 |
JPS5533335B2 (fr) | 1980-08-30 |
DE2611532B2 (de) | 1979-07-26 |
NL7602700A (nl) | 1976-09-21 |
DE2611532A1 (de) | 1976-09-23 |
FR2304320B1 (fr) | 1979-08-31 |
GB1537487A (en) | 1978-12-29 |
HK48779A (en) | 1979-07-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |