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1. 发明授权

US06670878B2 Magnet arrangement comprising a superconducting magnet coil system and a magnetic field forming device and a dimensioning method 有权
公开(公告)号：US06670878B2
公开(公告)日：2003-12-30
申请号：US09953313
申请日：2001-09-17
申请人： Robert Schauwecker , Pierre-Alain Bovier , Daniel Eckert , Frank Laukien
发明人： Robert Schauwecker , Pierre-Alain Bovier , Daniel Eckert , Frank Laukien
IPC分类号： H01F500
CPC分类号： G01R33/3875 , G01R33/3815
摘要： A magnet arrangement comprising a superconducting magnet coil system (M) for producing a magnetic field in the direction of a z axis in a working volume (AV) disposed on the z axis about z=0, wherein the superconducting magnet coil system (M) comprises a radially inner partial coil system (C1) and a radially outer partial coil system (C2) which is coaxial thereto, and with a field forming device (P) of magnetic material disposed in a preferably cylindrically symmetrical fashion about the z axis, located radially between the radially inner and the radially outer partial coil system (C1, C2), and being coaxial with respect to the two partial coil systems (C1, C2), wherein the radially inner partial coil system (C1) produces a homogeneous field in the working volume (AV) and the radially outer partial coil system (C2) produces an inhomogeneous field in the working volume (AV) is characterized in that the radially outer partial coil system (C2) produces, together with the magnetic field forming device (P), a homogeneous field in the working volume (AV), wherein the magnetic material of the field forming device (P) is largely magnetically saturated with its magnetization pointing substantially in a direction along the z axis. In this fashion, a homogenized radially inner partial coil system (C1) can be supplemented with an inhomogeneous radially outer partial coil system (C2), such that, through the use of a magnetic field forming device (P), the overall resulting magnet arrangement once more produces a homogeneous magnetic field in the working volume of the magnet arrangement.

2. 发明授权

US06265960B1 Actively shielded magnet system with Z2 shim 有权
标题翻译：主动屏蔽磁体系统与Z2垫片
公开(公告)号：US06265960B1
公开(公告)日：2001-07-24
申请号：US09643933
申请日：2000-08-23
申请人： Robert Schauwecker , Pierre-Alain Bovier , Daniel Eckert
发明人： Robert Schauwecker , Pierre-Alain Bovier , Daniel Eckert
IPC分类号： G01V300
CPC分类号： G01R33/421 , G01R33/3815 , G01R33/3875
摘要： A magnet system for magnetic resonance spectrometers comprising an actively shielded superconducting magnet with a radially inner and a radially outer coil system (M1, M2), wherein the two coil systems carry the same current and have identical opposite dipole moments, and comprising a shim coil system for correcting magnetic field inhomogeneities in the working volume, whose z component varies in proportion to z2, is characterized in that the shim coil system comprises a radially inner shim coil set (Si) which is inductively decoupled from the magnet system and generates a magnetic field in the working volume, whose z component varies like &Dgr;H0 +c2·z2 with c2=const., and a radially outer shim coil set (Sa) which is also inductively decoupled from the magnet system and generates a homogeneous magnetic field −&Dgr;H0 in the working volume. This produces a Z2 shim system with technically simple means which is, on the one hand, compact and does not waste any unnecessary space in the area of the magnet windings, and on the other hand is not susceptible to disturbances due to fluctuating external magnetic fields.
摘要翻译：一种用于磁共振光谱仪的磁体系统，包括具有径向内部和径向外部线圈系统（M1，M2）的主动屏蔽超导磁体，其中两个线圈系统承载相同的电流并具有相同的相反偶极矩，并且包括垫片线圈用于校正其z分量与z2成比例变化的工作体积中的磁场不均匀性的系统的特征在于，垫片线圈系统包括径向内部垫片线圈组（Si），其从磁体系统感应地解耦并产生磁其z分量随着具有c2 = const的DELTAH0 + c2.z2而变化，以及径向外部垫片线圈组（Sa），其也与磁体系统电感解耦并产生均匀的磁场-DELTAH0 工作量。这产生了一种技术上简单的方法的Z2垫片系统，其一方面是紧凑的，并且不会浪费磁铁绕组区域中的不必要的空间，另一方面不易受到外部磁场波动的干扰。

3. 发明授权

US08154292B2 Apparatus for carrying out DNP-NMR measurements with a compensation configuration and method for designing the compensation configuration 有权
标题翻译：用于以补偿配置进行DNP-NMR测量的设备和用于设计补偿配置的方法
公开(公告)号：US08154292B2
公开(公告)日：2012-04-10
申请号：US12458488
申请日：2009-07-14
申请人： Pierre-Alain Bovier , Robert Schauwecker , Daniel Eckert
发明人： Pierre-Alain Bovier , Robert Schauwecker , Daniel Eckert
IPC分类号： G01V3/00
CPC分类号： G01R33/62 , G01R33/281 , G01R33/30 , G01R33/3873 , G01R33/3875
摘要： An apparatus for DNP-NMR measurement on a sample, with a magnet configuration for producing a magnetic field in a first working volume and in, a second working volume with a magnetic field gradient in the direction of an axis (z) which extends through the second working volume, with a device for measuring MR signals, with a DNP excitation device, and with a positioning mechanism for transferring the sample, is characterized in that, near the second working volume, a compensation configuration made of magnetic material is mounted that, in the operating condition of the magnet configuration, produces a magnetic field gradient in the direction of the axis (z) in the second working volume that is between −90% and −110% of the magnetic field gradient of the same order of the stray field of the magnet configuration.
摘要翻译：一种用于在样品上进行DNP-NMR测量的装置，具有用于在第一工作体积中产生磁场的磁体构造和在沿着轴线（z）延伸的轴线（z）的方向上具有磁场梯度的第二工作体积第二工作体积，具有用于测量MR信号的装置，具有DNP激励装置，以及用于传送样品的定位机构，其特征在于，在第二工作体积附近，安装由磁性材料制成的补偿构造，在磁体结构的运行状态下，在第二工作容积中沿轴线方向（z）产生磁场梯度，该磁场梯度在杂散相同阶数的磁场梯度的-90％至-110％之间磁铁配置场。

4. 发明申请

US20100171495A1 Apparatus for carrying out DNP-NMR measurements with a compensation configuration and method for designing the compensation configuration 有权
标题翻译：用于以补偿配置进行DNP-NMR测量的设备和用于设计补偿配置的方法
公开(公告)号：US20100171495A1
公开(公告)日：2010-07-08
申请号：US12458488
申请日：2009-07-14
申请人： Pierre-Alain Bovier , Robert Schauwecker , Daniel Eckert
发明人： Pierre-Alain Bovier , Robert Schauwecker , Daniel Eckert
IPC分类号： G01R33/44
CPC分类号： G01R33/62 , G01R33/281 , G01R33/30 , G01R33/3873 , G01R33/3875
摘要： An apparatus for DNP-NMR measurement on a sample (P), with a magnet configuration (M) for producing a magnetic field in a first working volume (V1), wherein the magnet configuration (M) produces a stray field in a second working volume (V2) in the direction of an axis (z) with a magnetic field gradient (H1M, H2M, HnM) in the direction of the axis (z), wherein the axis (z) extends through the second working volume (V2), with a device (N) for measuring MR signals, with a DNP excitation device (D), and with a positioning mechanism (T) for transferring the sample (P), is characterized in that, near the second working volume (V2), a compensation configuration (m) made of magnetic material is mounted that, in the operating condition of the magnet configuration (M), produces a magnetic field gradient (H1m, H2m, Hnm) in the direction of the axis (z) in the second working volume (V2) that is between −90% and −110% of the magnetic field gradient of the same order (H1M, H2M, . . . ; HnM) of the stray field of the magnet configuration (M) in the direction of the axis (z) in the second working volume (V2). Thus, homogenization of the magnetic field in the second working volume can be achieved by technically simple means.
摘要翻译：一种用于在样品（P）上进行DNP-NMR测量的装置，具有用于在第一工作体积（V1）中产生磁场的磁体构造（M），其中，磁体构造（M）在第二工作中产生杂散场（z）延伸穿过第二工作容积（V2）的轴（z）方向上的磁场梯度（H1M，H2M，HnM）的轴向（z）方向上的体积（V2），具有用于测量MR信号的装置（N），具有DNP激励装置（D）以及用于传送样品（P）的定位机构（T），其特征在于，在第二工作容积（V2）附近，，安装由磁性材料制成的补偿构造（m），在磁体构造（M）的运行状态下，在所述磁体构造（M）的轴线（z）的方向上产生磁场梯度（H1m，H2m，Hnm）第二工作体积（V2）在t的相同阶数（H1M，H2M，...，HnM）的磁场梯度的-90％到-110％之间在第二工作容积（V2）中，沿着轴线（z）的方向的磁体构造（M）的杂散场。因此，可以通过技术上简单的手段来实现第二工作容积中的磁场的均匀化。

5. 发明申请

US20080252402A1 Split-coil magnet arrangement with improved mechanical construction 有权
标题翻译：分体式磁体布置具有改进的机械结构
公开(公告)号：US20080252402A1
公开(公告)日：2008-10-16
申请号：US11882151
申请日：2007-07-31
申请人： Raffaele Gilardi , Stefan Schneider , Robert Schauwecker , Pierre-Alain Bovier
发明人： Raffaele Gilardi , Stefan Schneider , Robert Schauwecker , Pierre-Alain Bovier
IPC分类号： H01F6/06 , G01R33/38
CPC分类号： G01R33/3815 , G01R33/288 , G01R33/3802 , G01R33/3806 , H01F6/06 , H01F7/202 , H01F27/306 , Y10S505/879
摘要： A magnet arrangement with a magnet coil system (M) with two coil systems (C, D) that are each arranged in a container (B1, B2) positioned around the z axis and that are axially mechanically separated by a split (G), wherein each coil system (C, D) comprises a first (C1, D1) and a second coil section system (C2, D2), wherein the first coil section systems (C1, D1) are exposed to attractive magnetic forces showing toward the split (G) (KC2, KD2) and the second coil section systems (C2, D2), to repulsive magnetic forces showing away from the split (G) (KC2, KD2), and containing in the split (G) at least one mechanical structure that withstands compressive loads (E1, E2) and that supports a part of the attractive magnetic forces (KC1, KD1), is characterized in that, in the split (G) within the dimensions of the containers (B1, B2), a mechanical structure (H1) is provided that mechanically withstands tensile loads in the z direction, supports a part of the repulsive magnetic forces in the axial direction (KC2, KD2), is connected to the containers (B1, B2) and holds them together. With the inventive magnet arrangement, the magnetic forces can be better controlled. At the same time, a low-cost, space and weight saving assembly can be implemented.
摘要翻译：具有带有两个线圈系统（C，D）的磁体线圈系统（M）的磁体装置，每个线圈系统（C，D）分别布置在围绕z轴定位的容器（B 1，B 2）中，），其中每个线圈系统（C，D）包括第一（C 1，D 1）和第二线圈段系统（C 2，D 2），其中第一线圈段系统（C 1，D 1）对于分裂（G）（K C2 C2，K D2）和第二线圈段系统（C 2，D 2）的吸引力磁力到排斥磁力显示远离分裂（G）（K C2 C2，K D2），并且在分割（G）中包含至少一个承受压缩载荷的机械结构（E 1 ，E 2），并且其支撑有吸引力的磁力（K SUB C1，K D1）的一部分，其特征在于，在分割（G）内的尺寸的容器（B 1，B 2）中，机械结构（H 1）被机械地提供并且在z方向上的拉伸载荷在轴向方向（K C2 C2，K D2）上支撑一部分排斥磁力，连接到容器（B 1 ，B 2）并把它们放在一起。利用本发明的磁体布置，可以更好地控制磁力。同时，可以实现低成本，空间和重量的组装。

6. 发明授权

US06781494B2 Actively shielded superconducting magnet assembly with a device for additional fringe field optimization 有权
标题翻译：主动屏蔽的超导磁体组件具有用于附加边缘场优化的装置
公开(公告)号：US06781494B2
公开(公告)日：2004-08-24
申请号：US10456775
申请日：2003-06-09
申请人： Robert Schauwecker , Andreas Amann , Pierre-Alain Bovier
发明人： Robert Schauwecker , Andreas Amann , Pierre-Alain Bovier
IPC分类号： H01F600
CPC分类号： G01R33/3815 , G01R33/421
摘要： A magnet assembly for generating a magnetic field (H) in the direction of a z axis in a working volume (AV) comprises an actively shielded superconducting magnet coil system (M) and at least one current path (P1, . . . , Pn) which is superconductingly closed in the operating state. The actively shielded superconducting magnet coil system (M) has a radially inner partial coil system (C1) and a radially outer partial coil system (C2) disposed coaxially with respect to each other. An external device supplies current to the current paths (P1, . . . , Pn) to charge each path to a respective current (IP1, . . . , IPn) in the operating state. When optimizing the fringe field behavior outside of the magnet system, the overall magnitude of magnetic dipole moments of the current paths (P1, . . . , Pn), charged to their respective operating currents (IP1, . . . , IPn), is at least 0.1% of the magnitude of the magnetic dipole moment of the charged partial coil system (C2). When charging the current paths (P1, . . . ,Pn) to their respective operating current (IP1, . . . , IPn), the resulting change &Dgr;H2 of the coefficient of second order (H2) of the polynomial expansion of the magnetic field (H) of the magnet assembly is given by: |&Dgr;H2|
摘要翻译：用于在工作体积（AV）中在z轴方向上产生磁场（H）的磁体组件包括主动屏蔽的超导磁体线圈系统（M）和至少一个电流通路（P1 ...，Pn）在运行状态下超导闭合。主动屏蔽的超导磁体线圈系统（M）具有径向内部部分线圈系统（C1）和相对于彼此同轴设置的径向外侧局部线圈系统（C2）。外部设备向当前路径（P1，...，Pn）提供电流，以将每个路径充电到处于工作状态的相应电流（IP1，...，IPn）。当优化磁体系统外部的边缘场行为时，充电到它们各自的工作电流（IP1，...，IPn）的电流路径（P1，...，Pn）的磁偶极矩的总体大小是是充电的部分线圈系统（C2）的磁偶极矩的至少0.1％。当将电流路径（P1，...，Pn）充电到它们各自的工作电流（IP1，...，IPn）时，得到的磁场多项式扩展的二阶系数（H2）的变化量ΔH2 磁体组件的高度（H）由下式给出：| DeltaH2 |

7. 发明授权

US07567158B2 Superconducting magnet arrangement with hysteresis free field coil 有权
公开(公告)号：US07567158B2
公开(公告)日：2009-07-28
申请号：US12149639
申请日：2008-05-06
申请人： Francesca Venturini , Robert Schauwecker , Pierre-Alain Bovier
发明人： Francesca Venturini , Robert Schauwecker , Pierre-Alain Bovier
IPC分类号： H01F6/00
CPC分类号： G01R33/3815 , G01R33/3802 , G01R33/445 , G01R33/60 , H01F6/00
摘要： A magnet arrangement (M, M′, M″, M′″) for generating a magnetic field in the direction of a z-axis in a working volume (V) disposed on the z-axis about z=0, with a magnet coil system (A, A′, A″, A′″) which comprises one or more superconducting magnet partial coil systems (A1, A1′, A1″, A1′″, A2′″, . . ., An′″), each forming superconductingly short-circuited current paths in the operating state, and with a further coil system (C, C′, C″, C′″) which can be charged or discharged independently of the magnet coil system (A, A′, A″, A′″) and comprises a first and a second partial coil system (C1, C2, C1′ C2′, C1″, C2″, C1′″, C2′″), wherein the first partial coil system (C1, C1′, C1″, C1′″) and the second partial coil system (C2, C2′, C2″, C2′″) each comprise at least one coil, wherein all coils of the further coil system (C, C′, C″, C′″) are connected in series, wherein gCeff,diamag>0.1 mT/A, is characterized in that gC1eff,diamag>0.1 mT/A, gC2eff,diamag>0.1 mT/A, g C ⁢ ⁢ 1 eff , class g C ⁢ ⁢ 1 eff , diamag ∉ [ 0.95 , 1.05 ] , g C ⁢ ⁢ 2 eff , class g C ⁢ ⁢ 2 eff , diamag ∉ [ 0.95 , 1.05 ] , wherein g C eff , class g C eff , diamag ∈ [ 0.95 , 1.05 ] . A substantially linear field change can thereby be realized in the working volume in dependence on a current change in the further coil system (C, C′, C″, C′″).

8. 发明申请

US20090002107A1 Superconducting magnet arrangement with hysteresis free field coil 有权
公开(公告)号：US20090002107A1
公开(公告)日：2009-01-01
申请号：US12149639
申请日：2008-05-06
申请人： Francesca Venturini , Robert Schauwecker , Pierre-Alain Bovier
发明人： Francesca Venturini , Robert Schauwecker , Pierre-Alain Bovier
IPC分类号： H01F6/06
CPC分类号： G01R33/3815 , G01R33/3802 , G01R33/445 , G01R33/60 , H01F6/00
摘要： A magnet arrangement (M, M′, M″, M′″) for generating a magnetic field in the direction of a z-axis in a working volume (V) disposed on the z-axis about z=0, with a magnet coil system (A, A′, A″, A′″) which comprises one or more superconducting magnet partial coil systems (A1, A1′, A1″, A1′″, A2′″, . . . , An′″), each forming superconductingly short-circuited current paths in the operating state, and with a further coil system (C, C′, C″, C′″) which can be charged or discharged independently of the magnet coil system (A, A′, A″, A′″) and comprises a first and a second partial coil system (C1, C2, C1′ C2′, C1″, C2″, C1′″, C2′″), wherein the first partial coil system (C1, C1′, C1″, C1′″) and the second partial coil system (C2, C2′, C2″, C2′″) each comprise at least one coil, wherein all coils of the further coil system (C, C′, C″, C′″) are connected in series, wherein gCeff,diamag>0.1 mT/A, is characterized in that gC1eff,diamag>0.1 mT/A, gC2eff,diamag>0.1 mT/A, g C   1 eff , class g C   1 eff , diamag ∉ [ 0.95 , 1.05 ] , g C   2 eff , class g C   2 eff , diamag ∉ [ 0.95 , 1.05 ] , wherein g C eff , class g C eff , diamag ∉ [ 0.95 , 1.05 ] . A substantially linear field change can thereby be realized in the working volume in dependence on a current change in the further coil system (C, C′, C″, C′″).

9. 发明授权

US06307370B1 Active shielded superconducting assembly with improved compensation of magentic field disturbances 有权
标题翻译：主动屏蔽超导组件改善了磁场扰动的补偿
公开(公告)号：US06307370B1
公开(公告)日：2001-10-23
申请号：US09347054
申请日：1999-07-02
申请人： Robert Schauwecker , Pierre-Alain Bovier , Daniel M. Eckert
发明人： Robert Schauwecker , Pierre-Alain Bovier , Daniel M. Eckert
IPC分类号： G01V300
CPC分类号： G01R33/421
摘要： A superconducting magnet arrangement with at least two current paths, short-circuited via switches in the operational state, which may carry different currents, wherein the magnet arrangement comprises at least one actively shielded superconducting magnet with a radially inner and a radially outer coil system which carry approximately the same current and have dipole moments of approximately the same magnitude, but opposite in direction, such that an outer magnetic field disturbance in a working volume of the magnet arrangement in the long-term behavior is suppressed to a remaining value of less than 20% of the external magnetic field disturbance, is characterized in that sections of the superconducting current paths are disturbance, is characterized in that sections of the superconducting current paths are bridged by ohmic resistors and that said sections and the ohmic resistors are chosen such that the magnetic field disturbance in the working volume is reduced already directly after its occurrence with respect to the field shift remaining after a long time, and that subsequently, the magnetic field disturbance in the working volume approaches the said field shift monotonously with a time constant of &tgr;≧2 sec. In this manner, also the short-term behavior of such a magnet system is improved in case an external disturbance occurs and new ways for optimizing the dynamic disturbance behavior are shown which require relatively little technical expense.
摘要翻译：具有至少两个电流路径的超导磁体布置，其处于工作状态的短路通路开关，其可以承载不同的电流，其中所述磁体布置包括至少一个主动屏蔽的超导磁体，所述超导磁体具有径向内部和径向外部线圈系统，具有大致相同的电流并且具有大致相同大小的偶极矩，但是在方向上相反，使得在长期行为中的磁体排列的工作体积中的外部磁场扰动被抑制到小于外部磁场干扰的20％的特征在于，超导电流路径的部分是干扰，其特征在于，超导电流路径的部分由欧姆电阻桥接，并且所述部分和欧姆电阻器被选择为使得工作体积中的磁场干扰已经直接减少其相对于长时间剩余的场偏移的发生，随后，工作体积中的磁场干扰以> = 2秒的时间常数单调接近所述场偏移。以这种方式，在外部干扰发生的情况下也改善了这种磁体系统的短期行为，并且示出了需要较少技术费用的用于优化动态扰动行为的新方法。

10. 发明授权

US07728707B2 Split-coil magnet arrangement with improved mechanical construction 有权
标题翻译：分体式磁体布置具有改进的机械结构
公开(公告)号：US07728707B2
公开(公告)日：2010-06-01
申请号：US11882151
申请日：2007-07-31
申请人： Raffaele Gilardi , Stefan Schneider , Robert Schauwecker , Pierre-Alain Bovier
发明人： Raffaele Gilardi , Stefan Schneider , Robert Schauwecker , Pierre-Alain Bovier
IPC分类号： H01F1/00 , H01F3/00 , H01F7/00 , H01F5/00 , H01F6/00 , G01V3/00
CPC分类号： G01R33/3815 , G01R33/288 , G01R33/3802 , G01R33/3806 , H01F6/06 , H01F7/202 , H01F27/306 , Y10S505/879
摘要： A magnet arrangement with a magnet coil system (M) with two coil systems (C, D) that are each arranged in a container (B1, B2) positioned around the z axis and that are axially mechanically separated by a split (G), wherein each coil system (C, D) comprises a first (C1, D1) and a second coil section system (C2, D2), wherein the first coil section systems (C1, D1) are exposed to attractive magnetic forces showing toward the split (G) (KC1, KD1) and the second coil section systems (C2, D2), to repulsive magnetic forces showing away from the split (G) (KC2, KD2), and containing in the split (G) at least one mechanical structure that withstands compressive loads (E1, E2) and that supports a part of the attractive magnetic forces (KC1, KD1), is characterized in that, in the split (G) within the dimensions of the containers (B1, B2), a mechanical structure (H1) is provided that mechanically withstands tensile loads in the z direction, supports a part of the repulsive magnetic forces in the axial direction (KC2, KD2), is connected to the containers (B1, B2) and holds them together. With the inventive magnet arrangement, the magnetic forces can be better controlled. At the same time, a low-cost, space and weight saving assembly can be implemented.
摘要翻译：一种具有带有两个线圈系统（C，D）的磁体线圈系统（M）的磁体装置，每个线圈系统（C）分别布置在围绕z轴定位的容器（B1，B2）中，其中每个线圈系统（C，D）包括第一（C1，D1）和第二线圈段系统（C2，D2），其中第一线圈段系统（C1，D1）（G）（KC1，KD1）和第二线圈段系统（C2，D2），分离（G）（KC2，KD2）表示的斥力磁力，并且在分割（G）中包含至少一个机械承受压缩载荷（E1，E2）并支撑一部分有吸引力的磁力（KC1，KD1）的结构的特征在于，在容器（B1，B2）的尺寸内的裂缝（G）中，提供机械结构（H1），其机械地承受在z方向上的拉伸载荷，支撑一部分排斥磁力 x线方向（KC2，KD2）连接到容器（B1，B2）并保持在一起。利用本发明的磁体布置，可以更好地控制磁力。同时，可以实现低成本，空间和重量的组装。

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