JPH0487490U - - Google Patents
Info
- Publication number
- JPH0487490U JPH0487490U JP13023990U JP13023990U JPH0487490U JP H0487490 U JPH0487490 U JP H0487490U JP 13023990 U JP13023990 U JP 13023990U JP 13023990 U JP13023990 U JP 13023990U JP H0487490 U JPH0487490 U JP H0487490U
- Authority
- JP
- Japan
- Prior art keywords
- line source
- rotating ring
- storage container
- detector array
- circle
- 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
- 238000010586 diagram Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Description
第１図ないし第３図はこの考案の一実施例に係
り、第１図はポジトロンＥＣＴ装置の概略構成を
示した断面図、第２図ａ，ｂはラインソース収納
容器の斜視図、第３図ａ，ｂはラインソースの線
上に位置する検出器範囲を従来例と比較するため
に用いる正面図である。また、第４図ないし第９
図は従来例において一般的なポジトロンＥＣＴ装
置および各補正方法の説明に用いた図であり、第
４図は概略断面図、第５図は同時計数の概要説明
図、第６図は投影データの図、第７図は感度補正
用データの求め方を示す図、第８図は吸収補正デ
ータの求め方を示す図、第９図はエミツシヨンデ
ータおよび真のＲＩ分布の求め方を示す図である
。
２……検出器、６……検出器配列円、１１……
回転リング、２０……ラインソース収納容器、２
２……ラインソース。
1 to 3 relate to an embodiment of this invention, in which FIG. 1 is a sectional view showing the schematic configuration of a positron ECT device, FIGS. 2a and 2b are perspective views of a line source storage container, and FIG. Figures a and b are front views used to compare the detector range located on the line of the line source with a conventional example. Also, Figures 4 to 9
The figures are diagrams used to explain a conventional positron ECT device and each correction method. Figure 4 is a schematic cross-sectional view, Figure 5 is a schematic explanatory diagram of coincidence, and Figure 6 is a diagram of projection data. 7 is a diagram showing how to obtain sensitivity correction data, FIG. 8 is a diagram showing how to obtain absorption correction data, and FIG. 9 is a diagram showing how to obtain emission data and true RI distribution. It is. 2...Detector, 6...Detector array circle, 11...
Rotating ring, 20...Line source storage container, 2
2...Line source.
Claims (1)
と、この回転リングの内側に突出する状態でこの
回転リングに取り付けられるリング状のラインソ
ース収納容器と、このラインソース収納容器に前
記検出器配列円の軸線に対して傾斜した姿勢で取
り付けられるラインソースとを備えたことを特徴
とするポジトロンＥＣＴ装置。 A rotating ring disposed coaxially with the detector array circle, a ring-shaped line source storage container attached to the rotating ring while protruding inside the rotating ring, and the detector array mounted in the line source storage container. A positron ECT device characterized by comprising a line source that is attached in an attitude inclined with respect to the axis of a circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13023990U JP2500237Y2 (en) | 1990-11-30 | 1990-11-30 | Positron ECT device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13023990U JP2500237Y2 (en) | 1990-11-30 | 1990-11-30 | Positron ECT device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0487490U true JPH0487490U (en) | 1992-07-29 |
| JP2500237Y2 JP2500237Y2 (en) | 1996-06-05 |
Family
ID=31877595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13023990U Expired - Lifetime JP2500237Y2 (en) | 1990-11-30 | 1990-11-30 | Positron ECT device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2500237Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020027005A (en) * | 2018-08-10 | 2020-02-20 | 株式会社島津製作所 | Positron ct device |
-
1990
- 1990-11-30 JP JP13023990U patent/JP2500237Y2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020027005A (en) * | 2018-08-10 | 2020-02-20 | 株式会社島津製作所 | Positron ct device |
| CN110811657A (en) * | 2018-08-10 | 2020-02-21 | 株式会社岛津制作所 | Positron CT device |
| CN110811657B (en) * | 2018-08-10 | 2023-09-29 | 株式会社岛津制作所 | Positron CT device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2500237Y2 (en) | 1996-06-05 |
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