JPS6333608U - - Google Patents
Info
- Publication number
- JPS6333608U JPS6333608U JP12814386U JP12814386U JPS6333608U JP S6333608 U JPS6333608 U JP S6333608U JP 12814386 U JP12814386 U JP 12814386U JP 12814386 U JP12814386 U JP 12814386U JP S6333608 U JPS6333608 U JP S6333608U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- gradient
- magnet device
- main axis
- coils
- 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
- 238000004804 winding Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Magnetic Resonance Imaging Apparatus (AREA)
Description
第１Ａ図、第１Ｂ図はＸ方向勾配磁界発生用コ
イル組の部分を示す磁石装置の概略部分端面図お
よび側面図、第２Ａ図、第２Ｂ図はＹ方向勾配磁
界発生用コイル組の部分を示す第１Ａ図、第１Ｂ
図と同様な図、第３図は１個のコイル組中の代表
的コイル構造を示す図、第４図は１個のコイル組
の詳細を示す概略斜視図である。
３……主軸、５，５０……勾配コイル組対、５
Ａ，５Ｂ……第１コイル、６，６０……勾配コイ
ル組対、１０……第２コイル、Ｘ……第２軸、Ｙ
……第２軸。
Figures 1A and 1B are schematic partial end and side views of the magnet device showing the coil set for generating a gradient magnetic field in the X direction, and Figures 2A and 2B show the coil set for generating a gradient magnetic field in the Y direction. Figures 1A and 1B shown.
3 is a diagram showing a typical coil structure in one coil set, and FIG. 4 is a schematic perspective view showing details of one coil set. 3... Main shaft, 5, 50... Gradient coil set pair, 5
A, 5B...First coil, 6,60...Gradient coil pair, 10...Second coil, X...Second axis, Y
...Second axis.
Claims (1)
生手段と、主軸の両側に配置された勾配コイル対
とを備え、勾配コイル組対に電流が流れると、該
勾配コイル組対間で主軸を横切つて延在する第２
軸に沿つて該勾配コイル組対により勾配磁界が発
生され、各勾配コイル組は第１、第２コイルを有
し、該第１、第２のコイルの巻線は主軸とほぼ同
心なそれぞれの面上に形成され、第２コイルが磁
石装置の中心領域に配置されて、使用時にこの中
心領域は残りの領域より高い電流密度を有してい
ることを特徴とする磁石装置。 ２ 実用新案登録請求の範囲第１項において、第
２軸は相互に横切ると共に、主軸を横切ることを
特徴とする磁石装置。 ３ 実用新案登録請求の範囲第１項または第２項
において、各勾配コイル組の第２コイルは、対応
する第１コイルとほぼ同軸であることを特徴とす
る磁石装置。 ４ 実用新案登録請求の範囲第１項〜第３項のい
ずれかにおいて、各勾配コイル組の第１、第２コ
イルは、電気的に直列に接続されていることを特
徴とする磁石装置。 ５ 実用新案登録請求の範囲第１項〜第４項のい
ずれかにおいて、磁界発生手段は主軸とほぼ共軸
な少なくとも１個の電気コイルを備えていること
を特徴とする磁石装置。[Claims for Utility Model Registration] 1. Comprising a magnetic field generating means that generates a substantially uniform magnetic field along the main axis, and a pair of gradient coils arranged on both sides of the main axis, when a current flows through the pair of gradient coils, a second gradient coil extending across the main axis between the pair of gradient coils;
A gradient magnetic field is generated by the pair of gradient coil sets along an axis, each gradient coil set having a first and a second coil, the windings of the first and second coils having respective windings substantially concentric with the principal axis. A magnet device formed on a surface, characterized in that the second coil is arranged in a central region of the magnet device, such that in use this central region has a higher current density than the remaining regions. 2. The magnet device according to claim 1, characterized in that the second axes cross each other and the main axis. 3 Utility Model Registration The magnet device according to claim 1 or 2, characterized in that the second coil of each gradient coil set is substantially coaxial with the corresponding first coil. 4 Utility Model Registration The magnet device according to any one of claims 1 to 3, characterized in that the first and second coils of each gradient coil set are electrically connected in series. 5 Utility Model Registration The magnet device according to any one of claims 1 to 4, characterized in that the magnetic field generating means includes at least one electric coil substantially coaxial with the main axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12814386U JPH0334898Y2 (en) | 1986-08-22 | 1986-08-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12814386U JPH0334898Y2 (en) | 1986-08-22 | 1986-08-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6333608U true JPS6333608U (en) | 1988-03-04 |
| JPH0334898Y2 JPH0334898Y2 (en) | 1991-07-24 |
Family
ID=31023548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12814386U Expired JPH0334898Y2 (en) | 1986-08-22 | 1986-08-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0334898Y2 (en) |
-
1986
- 1986-08-22 JP JP12814386U patent/JPH0334898Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0334898Y2 (en) | 1991-07-24 |
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