JPS6479700A - X-ray aperture for x-ray ct device - Google Patents
X-ray aperture for x-ray ct deviceInfo
- Publication number
- JPS6479700A JPS6479700A JP62236112A JP23611287A JPS6479700A JP S6479700 A JPS6479700 A JP S6479700A JP 62236112 A JP62236112 A JP 62236112A JP 23611287 A JP23611287 A JP 23611287A JP S6479700 A JPS6479700 A JP S6479700A
- Authority
- JP
- Japan
- Prior art keywords
- ray
- cut hole
- plate
- hole
- source
- 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.)
- Pending
Links
- 230000000007 visual effect Effects 0.000 abstract 1
Landscapes
- Apparatus For Radiation Diagnosis (AREA)
Abstract
PURPOSE:To limit a visual field of an X-ray fan beam going through a cut hole in an X-ray shield, by providing a cut hole in an X-ray shielding plate, by rotating the plate around the hole region and by adjusting an apparent slit width made by the cut hole. CONSTITUTION:An X-ray fan beam 19 is emitted from an X-ray source 15 and irradiates an irradiation surface 21 through a cut hole 13. In this case, a plate 9 is placed so that the cut hole 13 may have the maximum width against the X-ray source 15. Then, for example, the plate 9 is rotated around a rotation axis O along a direction of an arrow I or J, thereby the plate 9 is rotated to the position shown by a dotted line 14. In this situation, the beam 19 emitted from the source 15 goes through an apparent width K' of the cut hole 13. Through this way, the irradiation beam 19 is limited as shown by a dotted line 20.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62236112A JPS6479700A (en) | 1987-09-22 | 1987-09-22 | X-ray aperture for x-ray ct device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62236112A JPS6479700A (en) | 1987-09-22 | 1987-09-22 | X-ray aperture for x-ray ct device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6479700A true JPS6479700A (en) | 1989-03-24 |
Family
ID=16995916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62236112A Pending JPS6479700A (en) | 1987-09-22 | 1987-09-22 | X-ray aperture for x-ray ct device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6479700A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04106800U (en) * | 1990-11-14 | 1992-09-14 | 日新ハイボルテ−ジ株式会社 | Electron beam irradiation device |
JP2014104356A (en) * | 2012-11-27 | 2014-06-09 | Ge Medical Systems Global Technology Co Llc | Ct collimator and ct system including the ct collimator |
-
1987
- 1987-09-22 JP JP62236112A patent/JPS6479700A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04106800U (en) * | 1990-11-14 | 1992-09-14 | 日新ハイボルテ−ジ株式会社 | Electron beam irradiation device |
JP2014104356A (en) * | 2012-11-27 | 2014-06-09 | Ge Medical Systems Global Technology Co Llc | Ct collimator and ct system including the ct collimator |
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