JPS62111571U - - Google Patents
Info
- Publication number
- JPS62111571U JPS62111571U JP19942785U JP19942785U JPS62111571U JP S62111571 U JPS62111571 U JP S62111571U JP 19942785 U JP19942785 U JP 19942785U JP 19942785 U JP19942785 U JP 19942785U JP S62111571 U JPS62111571 U JP S62111571U
- Authority
- JP
- Japan
- Prior art keywords
- projector
- positron
- total reflection
- axis direction
- body axis
- 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
- 238000002834 transmittance Methods 0.000 claims 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案における一実施例の走査装置開
口部付近の断面の一部の拡大図、第２図は従来の
ポジトロンＣＴ装置のスライス位置表示装置付近
の断面図、第３図は本考案によるスライス位置表
示の方法を説明する図である。
１ａ……シンチレータ、１ｂ……光電子増倍管
、２ａ……シールド（寝台側）、２ｂ……第１ス
ライスシールド、２ｃ……第２スライスシールド
、２ｄ……第３スライスシールド、２ｅ……シー
ルド、３……投光器、４ａ，４ｂ，４ｃ，４ｄ…
…ハーフミラー、４ｅ……全反射ミラー、５……
透明窓、６……光線、７……カバー、８……開口
部。
FIG. 1 is an enlarged view of a part of a cross section near the opening of a scanning device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of a conventional positron CT device near a slice position display device, and FIG. 3 is a cross-sectional view of the present invention FIG. 3 is a diagram illustrating a method of displaying slice positions according to the method. 1a...scintillator, 1b...photomultiplier tube, 2a...shield (bed side), 2b...first slice shield, 2c...second slice shield, 2d...third slice shield, 2e...shield , 3... Floodlight, 4a, 4b, 4c, 4d...
...half mirror, 4e...total reflection mirror, 5...
Transparent window, 6...ray of light, 7...cover, 8...opening.
Claims (1)
の寝台側又はその反対側に、体軸方向に投光器を
取り付け、検出器リング間に、投光器に最も近い
ところには透過率の高いハーフミラーを、投光器
から遠くなるに従つて透過率の低いハーフミラー
を、最も遠いところには全反射のミラーを取り付
け、前記投光器からの光をこれらのハーフミラー
や全反射ミラーによつて、体軸方向と垂直に被検
体に向けて反射させて、検出器リング内のスライ
ス位置を表示することを特徴とするポジトロンＣ
Ｔ用スライス位置表示装置。 In a positron CT system, a projector is installed in the body axis direction on the bed side of the scanning device opening or on the opposite side, and a half mirror with high transmittance is placed between the detector rings at the point closest to the projector, and placed far away from the projector. At the farthest point, a half mirror with lower transmittance is installed, and a total reflection mirror is installed at the farthest point, and the light from the projector is directed to the subject perpendicularly to the body axis direction using these half mirrors and total reflection mirrors. Positron C characterized by displaying the slice position within the detector ring by reflecting it toward the detector ring.
Slice position display device for T.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19942785U JPS62111571U (en) | 1985-12-27 | 1985-12-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19942785U JPS62111571U (en) | 1985-12-27 | 1985-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62111571U true JPS62111571U (en) | 1987-07-16 |
Family
ID=31161041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19942785U Pending JPS62111571U (en) | 1985-12-27 | 1985-12-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62111571U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6423682U (en) * | 1987-07-31 | 1989-02-08 |
-
1985
- 1985-12-27 JP JP19942785U patent/JPS62111571U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6423682U (en) * | 1987-07-31 | 1989-02-08 |
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