JP2007289550A - X線管配置 - Google Patents
X線管配置 Download PDFInfo
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- JP2007289550A JP2007289550A JP2006123114A JP2006123114A JP2007289550A JP 2007289550 A JP2007289550 A JP 2007289550A JP 2006123114 A JP2006123114 A JP 2006123114A JP 2006123114 A JP2006123114 A JP 2006123114A JP 2007289550 A JP2007289550 A JP 2007289550A
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- 238000003384 imaging method Methods 0.000 claims description 8
- 230000004304 visual acuity Effects 0.000 abstract description 8
- 238000010894 electron beam technology Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000003902 lesion Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- -1 aluminum and copper Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000002601 radiography Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
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- Apparatus For Radiation Diagnosis (AREA)
Abstract
【解決手段】X線撮影装置において、X線管を焦点の中央を回転中心とし、X線管の管軸を、中心X線を照射する方向から見たときにフィラメント側を奥に、陽極部を手前になるように一定角度だけ傾けることにより、中心X線の照射する方向から見たときのX線管ターゲット角度が見かけ上小さくなり、X線撮影に際し、みかけの焦点、即ち実効焦点サイズを小さくする。
【選択図】図2
Description
従って、陽極の角度が小さくなればなるほど実効焦点サイズの1辺を小さくすることができる。しかし、ここで、陽極の角度が小さくなればなるほど撮影に必要とされる照射野内での線量の不均一が発生する。これはヒールエフェクトと称され、増感紙フイルム系を用いて撮影が行なわれる場合には問題となる。
2 陽極
3 陽極のターゲット設置面
4 ターゲット
Claims (2)
- X線ヘッドに固定されているX線管の幾何学的配置を変えるに当たり、X線管の陰極と陽極とを結ぶ線を管軸とすると、焦点の中央を回転中心とし、X線管を中心X線方向から焦点方向を見た時、陰極部を奥に、陽極部を手前方向に一定角度だけ回転させ、回転後の中心X線の照射する方向から見たときのX線管ターゲットの角度を見かけ上小さくすることで、実効焦点サイズを見かけ上小さくしたことを特徴とするX線管配置。
- X線撮影に当たり、照射野内におけるX線強度分布が不均一な場合は、受光装置やX線発生装置にX線強度分布補正手段を設けるようにしたことを特徴とするX線管配置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006123114A JP4777130B2 (ja) | 2006-04-27 | 2006-04-27 | 固定陽極型のx線管における実効焦点を見かけ上小さくする方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006123114A JP4777130B2 (ja) | 2006-04-27 | 2006-04-27 | 固定陽極型のx線管における実効焦点を見かけ上小さくする方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007289550A true JP2007289550A (ja) | 2007-11-08 |
JP4777130B2 JP4777130B2 (ja) | 2011-09-21 |
Family
ID=38760759
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006123114A Active JP4777130B2 (ja) | 2006-04-27 | 2006-04-27 | 固定陽極型のx線管における実効焦点を見かけ上小さくする方法 |
Country Status (1)
Country | Link |
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JP (1) | JP4777130B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011206534A (ja) * | 2010-03-12 | 2011-10-20 | Morita Mfg Co Ltd | X線撮影装置 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7299867B2 (ja) | 2020-11-02 | 2023-06-28 | 株式会社モリタ製作所 | X線撮影装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6251199A (ja) * | 1985-08-29 | 1987-03-05 | Yokogawa Medical Syst Ltd | 可変焦点型x線断層撮像装置 |
JPH04231941A (ja) * | 1990-12-28 | 1992-08-20 | Shimadzu Corp | 回転陰極x線管 |
JPH07161319A (ja) * | 1993-12-07 | 1995-06-23 | Toshiba Corp | X線管装置 |
JP2001198119A (ja) * | 2000-01-24 | 2001-07-24 | Hitachi Medical Corp | X線ct装置 |
-
2006
- 2006-04-27 JP JP2006123114A patent/JP4777130B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6251199A (ja) * | 1985-08-29 | 1987-03-05 | Yokogawa Medical Syst Ltd | 可変焦点型x線断層撮像装置 |
JPH04231941A (ja) * | 1990-12-28 | 1992-08-20 | Shimadzu Corp | 回転陰極x線管 |
JPH07161319A (ja) * | 1993-12-07 | 1995-06-23 | Toshiba Corp | X線管装置 |
JP2001198119A (ja) * | 2000-01-24 | 2001-07-24 | Hitachi Medical Corp | X線ct装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011206534A (ja) * | 2010-03-12 | 2011-10-20 | Morita Mfg Co Ltd | X線撮影装置 |
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JP4777130B2 (ja) | 2011-09-21 |
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