JPS61154911U - - Google Patents
Info
- Publication number
- JPS61154911U JPS61154911U JP3941385U JP3941385U JPS61154911U JP S61154911 U JPS61154911 U JP S61154911U JP 3941385 U JP3941385 U JP 3941385U JP 3941385 U JP3941385 U JP 3941385U JP S61154911 U JPS61154911 U JP S61154911U
- Authority
- JP
- Japan
- Prior art keywords
- filter
- electromagnets
- switching device
- magnetic body
- tomography apparatus
- 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
- 238000003325 tomography Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
Landscapes
- Apparatus For Radiation Diagnosis (AREA)
Description
第１図イ乃至ニは、本考案の一実施例を示す構
成図、第２図は、本考案の他の実施例を示す構成
図、第３図は、Ｘ線断層撮影装置の概念構成図で
ある。
１１……ケース、１２ａ乃至１２ｄ……軸（案
内手段）、１３及び２３……フイルタ、１４及び
１５……強磁性体、１６及び１７……電磁石、２
０……電磁石用操作部、２１及び２２……フイル
タ位置検出部。
Figures 1A to D are block diagrams showing one embodiment of the present invention, Figure 2 is a block diagram showing another embodiment of the present invention, and Figure 3 is a conceptual block diagram of an X-ray tomography apparatus. It is. 11...Case, 12a to 12d...Shaft (guiding means), 13 and 23...Filter, 14 and 15...Ferromagnetic material, 16 and 17...Electromagnet, 2
0... Electromagnet operation section, 21 and 22... Filter position detection section.
Claims (1)
の投影データを収集して断層画像を求めるＸ線断
層撮影装置のフイルタ切替え装置において、 案内手段によつて前記Ｘ線のフアンビーム面に
略垂直方向で移動し得るように支持されたフイル
タと、該フイルタと一体化される磁性体と、該磁
性体に対向し、かつ、前記フイルタを間にして設
置される１組の電磁石と、該電磁石の付勢を切替
えて前記フイルタの保持位置を決定する操作部と
を備えることを特徴とするＸ線断層撮影装置のフ
イルタ切替え装置。[Scope of Claim for Utility Model Registration] In a filter switching device for an X-ray tomography apparatus that obtains a tomographic image by collecting projection data when a subject is irradiated with Fan-beam X-rays, a filter supported so as to be movable in a direction substantially perpendicular to the fan beam plane of the wire; a magnetic body integrated with the filter; and a filter installed opposite to the magnetic body with the filter interposed therebetween. A filter switching device for an X-ray tomography apparatus, comprising: a set of electromagnets; and an operation section that switches the energization of the electromagnets to determine a holding position of the filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3941385U JPS61154911U (en) | 1985-03-19 | 1985-03-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3941385U JPS61154911U (en) | 1985-03-19 | 1985-03-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61154911U true JPS61154911U (en) | 1986-09-26 |
Family
ID=30547335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3941385U Pending JPS61154911U (en) | 1985-03-19 | 1985-03-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61154911U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4710542U (en) * | 1971-03-01 | 1972-10-07 | ||
| JPS5425689A (en) * | 1977-07-29 | 1979-02-26 | Toshiba Corp | Wedge filter unit |
-
1985
- 1985-03-19 JP JP3941385U patent/JPS61154911U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4710542U (en) * | 1971-03-01 | 1972-10-07 | ||
| JPS5425689A (en) * | 1977-07-29 | 1979-02-26 | Toshiba Corp | Wedge filter unit |
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