JP2017221862A5 - - Google Patents

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JP2017221862A5
JP2017221862A5 JP2017193922A JP2017193922A JP2017221862A5 JP 2017221862 A5 JP2017221862 A5 JP 2017221862A5 JP 2017193922 A JP2017193922 A JP 2017193922A JP 2017193922 A JP2017193922 A JP 2017193922A JP 2017221862 A5 JP2017221862 A5 JP 2017221862A5
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Claims (17)

  1. 長手軸に沿って設けられ、かつ、少なくとも一部が前記長手軸に沿って延びる磁場を発生させるように構成される1つ又は複数の磁石;
    前記長手軸へ向かうように放射線ビームを案内するように構成される線形粒子加速器(ライナック);及び、
    前記磁場から前記ライナックを遮蔽するように構成される遮蔽体;
    を有するシステムであって、
    前記遮蔽体は少なくとも第1シェルと第2シェルを有し、
    前記第2シェルは、前記第1シェルの内部に位置し、かつ、前記第1シェルより高い透磁率を有し、
    前記第1シェルと前記第2シェルは少なくとも部分的に前記ライナックを取り囲む、
    システム。
  2. 前記第2シェルは、前記第1シェルより低い飽和磁束密度を有する、請求項1に記載のシステム。
  3. 前記第2シェルは、ミューメタルを含む、請求項1に記載のシステム。
  4. 前記第1シェル及び前記第2シェルは、異なる鋼から形成される、請求項1に記載のシステム。
  5. 前記第1シェルが少なくとも部分的に前記ライナックと前記第2シェルを取り囲む、請求項1に記載のシステム。
  6. 前記ライナックによって発生するRF放射から前記1つ又は複数の磁石を遮蔽するように構成されるRF遮蔽体をさらに有し、前記RF遮蔽体は、前記ライナックのいくつか又は全ての構成要素を少なくとも部分的に取り囲み、前記RF遮蔽体は、RF吸収材料及び/又はRF反射材料の1つ又は複数の層を有する、請求項1に記載のシステム。
  7. 磁場を発生させるように構成される磁気共鳴撮像システム;
    線形加速器;
    前記磁場から前記線形加速器を遮蔽するように構成される外側磁気遮蔽体;及び
    前記外側磁気遮蔽体の少なくとも部分的に内側の内側磁気遮蔽体;
    を有するシステムであって、
    前記内側磁気遮蔽体は、前記外側磁気遮蔽体より高い透磁率を有する、
    システム。
  8. 前記内側磁気遮蔽体は、前記外側磁気遮蔽体より低い飽和磁束密度を有する、請求項7に記載のシステム。
  9. 前記内側磁気遮蔽体は、ミューメタルを含む、請求項7に記載のシステム。
  10. 前記外側磁気遮蔽体及び前記内側磁気遮蔽体は、異なる鋼から形成される、請求項7に記載のシステム。
  11. 前記外側磁気遮蔽体が少なくとも部分的に前記線形加速器と前記内側磁気遮蔽体を取り囲む、請求項7に記載のシステム。
  12. 前記線形加速器によって発生するRF放射から前記磁気共鳴撮像システムを遮蔽するように構成されるRF遮蔽体をさらに有し、前記RF遮蔽体は、前記線形加速器のいくつか又は全ての構成要素を少なくとも部分的に取り囲み、前記RF遮蔽体は、RF吸収材料及び/又はRF反射材料の1つ又は複数の層を有する、請求項7に記載のシステム。
  13. 長手軸に沿って設けられ、かつ、少なくとも一部が前記長手軸に沿って延びる磁場を発生させるように構成される1つ又は複数の磁石;
    前記長手軸へ向かうように放射線ビームを案内するように構成される線形粒子加速器(ライナック);
    前記磁場から前記ライナックを遮蔽するように構成される遮蔽体であって、前記遮蔽体は少なくとも第1シェルと第2シェルを有し、前記第2シェルは、前記第1シェルの内部に位置し、前記第1シェルと前記第2シェルは少なくとも部分的に前記ライナックを取り囲む、遮蔽体;及び
    前記ライナックによって発生するRF放射から前記1つ又は複数の磁石を遮蔽するように構成されるRF遮蔽体であって、前記RF遮蔽体は、前記ライナックのいくつか又は全ての構成要素を少なくとも部分的に取り囲む、RF遮蔽体;
    を有する、システム。
  14. 前記RF遮蔽体は、RF吸収材料及びRF反射材料のうちの少なくとも一で形成される層を有する、請求項13に記載のシステム。
  15. 前記RF遮蔽体は、RF反射材料の少なくとも1つの層とRF吸収材料の1つの層とを有する、請求項13に記載のシステム。
  16. 前記RF遮蔽体は、銅ホイル、アルミニウムホイル、又は炭素ファイバーを含む、請求項13に記載のシステム。
  17. 前記RF遮蔽体は、前記RF遮蔽体を通って延びる1つ又は複数のスロットを有する、請求項13に記載のシステム。
JP2017193922A 2009-07-15 2017-10-04 線形加速器及び磁気共鳴撮像装置を互いに遮蔽する方法及び装置 Active JP6462084B2 (ja)

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