GB1169787A - Tomographic Apparatus - Google Patents
Tomographic ApparatusInfo
- Publication number
- GB1169787A GB1169787A GB33875/67D GB3387567D GB1169787A GB 1169787 A GB1169787 A GB 1169787A GB 33875/67 D GB33875/67 D GB 33875/67D GB 3387567 D GB3387567 D GB 3387567D GB 1169787 A GB1169787 A GB 1169787A
- Authority
- GB
- United Kingdom
- Prior art keywords
- film
- section
- source
- patient
- layer
- 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
Links
- 230000005855 radiation Effects 0.000 abstract 2
- 238000005286 illumination Methods 0.000 abstract 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
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
- A61B6/4435—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure
- A61B6/4441—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure the rigid structure being a C-arm or U-arm
-
- 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
- A61B6/4035—Arrangements for generating radiation specially adapted for radiation diagnosis the source being combined with a filter or grating
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Radiology & Medical Imaging (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (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)
Abstract
1,169,787. Tomographic apparatus. TOKYO SHIBAURA ELECTRIC CO. Ltd. 24 July, 1967 [23 July, 1966]', No. 33875/67. Heading H5R. In a tomographic radiation equipment wherein the layer being photographed is substantially perpendicular to the axis about which the tube and photographic recording means are oscillated, and the photographic film is positioned so as to be parallel to said layer and the X-ray beam is obliquely incident on both layer and film, there is placed between the object and the film a tapered scatter-eliminating plate positioned such that the thinner section of the plate corresponds to that part of the film furthest from the source and the thicker section of the plate corresponds to that part of the film nearest to the radiation source. In Fig. 2 the couch 10 supports a patient 12 under an X-ray source 13 supported by beam 16 oscillatable about horizontal axis 15. A section of the patient 12 perpendicular to the axis 15 is being radiographed and photographic plate 14 is parallel to this section. In the path of the X-ray beam transmitted by the patient there is placed a wedge-shaped screen 18 preferably of lead supported by arm 19. The wedgeshaped section of 18 ensures that the rays from source 13 have an equivalent path length between source and film whichever side of the section under examination they pass through, ensuring that the detail of the desired section is not obscured by unequal illumination of the film.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4823366 | 1966-07-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1169787A true GB1169787A (en) | 1969-11-05 |
Family
ID=12797709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33875/67D Expired GB1169787A (en) | 1966-07-23 | 1967-07-24 | Tomographic Apparatus |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3486022A (en) |
| DE (1) | DE1597425B2 (en) |
| GB (1) | GB1169787A (en) |
| NL (1) | NL6710106A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1007384A (en) * | 1973-06-05 | 1977-03-22 | Godfrey N. Hounsfield | Radiographic apparatus |
| GB1509528A (en) * | 1974-06-07 | 1978-05-04 | Emi Ltd | Radiology |
| US4118629A (en) * | 1974-06-07 | 1978-10-03 | Emi Limited | Radiology |
| US4322619A (en) * | 1979-11-09 | 1982-03-30 | University Of Utah | Optical masking radiography |
| CN104237268B (en) * | 2014-09-30 | 2016-10-05 | 四川泛华航空仪表电器有限公司 | The lossless detection method of oil level signal device variable cross-section composite workpiece |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2405444A (en) * | 1942-08-05 | 1946-08-06 | Moreau Santiago | Radiographic filter |
| US2407938A (en) * | 1943-03-09 | 1946-09-17 | Schonander Nils Georg | X-ray screening apparatus |
| US3248547A (en) * | 1963-10-21 | 1966-04-26 | Picker X Ray Corp | Device for accurately positioning X-ray filters in the beam path |
-
1967
- 1967-07-17 US US653922A patent/US3486022A/en not_active Expired - Lifetime
- 1967-07-20 NL NL6710106A patent/NL6710106A/xx unknown
- 1967-07-21 DE DE19671597425 patent/DE1597425B2/en not_active Withdrawn
- 1967-07-24 GB GB33875/67D patent/GB1169787A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL6710106A (en) | 1968-01-24 |
| DE1597425B2 (en) | 1972-02-17 |
| DE1597425A1 (en) | 1970-06-11 |
| US3486022A (en) | 1969-12-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
| PCNP | Patent ceased through non-payment of renewal fee |