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    • 1. 发明授权
    • Cryostat having a magnet coil system, which comprises an LTS section and an encapsulated HTS section
    • 具有磁体线圈系统的低温恒温器,其包括LTS部分和封装的HTS部分
    • US08255023B2
    • 2012-08-28
    • US12225192
    • 2007-03-07
    • Klaus SchlengaMarion KlaeserThomas Arndt
    • Klaus SchlengaMarion KlaeserThomas Arndt
    • H01F6/04H01F6/06G01V3/00
    • H01F6/06G01R33/3804G01R33/3815H01F6/04
    • A cryostat (1) with a magnet coil system including superconductors for the production of a magnet field B0 in a measuring volume (3) has a plurality of radially nested solenoid-shaped coil sections (4, 5, 6) and which are electrically connected in series, at least one of which being an LTS section (5, 6) with a conventional low temperature superconductor (LTS) and at least one of which being an HTS section (4) including a high temperature superconductor (HTS), wherein the magnet coil system is located in a helium tank (9) of the cryostat (1) along with liquid helium at a helium temperature TL. The apparatus is characterized in that a chamber (11) is provided within which the HTS sections (4) are held having an internal portion with a sufficiently low pressure such that helium located therein at a temperature of TL is gaseous. The cryostat in accordance with the invention can be utilized to maintain HTS coil sections over a long period of time in a reliable fashion.
    • 具有包括用于在测量体积(3)中产生磁场B0的超导体的磁体线圈系统的低温恒温器(1)具有多个径向嵌套的螺线管状线圈部分(4,5,6),它们电连接 串联地,其中至少一个是具有常规低温超导体(LTS)的LTS部分(5,6),并且其中至少一个是包括高温超导体(HTS)的HTS部分(4),其中, 磁体线圈系统位于低温恒温器(1)的氦气罐(9)中以及氦温度TL下的液氦。 该装置的特征在于提供一个室(11),其中保持HTS部分(4)具有足够低压力的内部部分,使得位于其中的TL温度为气态的氦气。 根据本发明的低温恒温器可以用于以可靠的方式长时间地维持HTS线圈段。
    • 3. 发明授权
    • Magnetic resonance apparatus with phase-aligned coupling-in of working gas pressure pulses
    • 具有相位对准的工作气体压力脉冲耦合的磁共振装置
    • US07464556B2
    • 2008-12-16
    • US11330163
    • 2006-01-12
    • Klaus Schlenga
    • Klaus Schlenga
    • F25B9/00F25B19/00
    • F25B9/14F25B2309/006F25B2500/13G01R33/3815
    • A magnetic resonance apparatus comprising a superconducting magnet coil disposed in a cryostat, and a refrigerator for cooling same comprising a compressor (1) for compressing a working gas, and a high-pressure line (2) and a low-pressure line (3) disposed between the compressor (1) and a control valve (5), which periodically connects the high-pressure line (2) and the low-pressure line (3) to at least one connecting line (6) between the control valve (5) and a cold head (4) of the refrigerator, thereby producing pressure pulses through the switched working gas, wherein the control valve (5) and/or connecting line (6) and cold head (4) components are rigidly mechanically coupled to the cryostat, is characterized in that at least one of the above-mentioned lines (2, 3, 6) is branched on the compressor side upstream of the rigidly coupled components, and is symmetrically joined at one of the coupled components in such a manner that the pressure pulses through the working gas are vectorially compensated for at the component where the branched line is joined, thereby minimizing vibrations of the cryostat. The inventive magnetic resonance apparatus greatly reduces transmission of oscillations to the magnet coil and thereby the number and strength of artefacts in the spectra or images acquired with this magnetic resonance apparatus, to ensure high-quality magnetic resonance recordings.
    • 一种磁共振装置,包括设置在低温恒温器中的超导磁体线圈和用于冷却的冷冻机,其包括用于压缩工作气体的压缩机(1)和高压管线(2)和低压管线(3) 设置在压缩机(1)和控制阀(5)之间,其将高压管线(2)和低压管线(3)周期性地连接到控制阀(5)之间的至少一个连接管线 )和冰箱的冷头(4),由此产生通过切换的工作气体的压力脉冲,其中控制阀(5)和/或连接管线(6)和冷头(4)部件刚性机械地联接到 低温恒温器的特征在于,上述管线(2,3,6)中的至少一个在刚性耦合部件的上游的压缩机侧分支,并且在耦合部件之一对称地接合,使得 通过工作气体的压力脉冲是矢量 在分支线连接的部件上进行补偿,从而最小化低温恒温器的振动。 本发明的磁共振装置极大地减少了对磁体线圈的振荡传输,从而大大降低了使用该磁共振装置获得的光谱或图像中的伪影的数量和强度,以确保高质量的磁共振记录。
    • 5. 发明申请
    • Superconductor magnet coil configuration
    • 超导体电磁线圈配置
    • US20060055494A1
    • 2006-03-16
    • US11214852
    • 2005-08-31
    • Volker NiemannGerhard RothKlaus Schlenga
    • Volker NiemannGerhard RothKlaus Schlenga
    • H01F3/00
    • G01R33/3815H01F6/06H01F27/2847H01F27/34H01F41/048H01F41/082
    • A superconducting magnet coil configuration comprising at least one section of a superconducting strip conductor, which is continuously wound in a cylindrical winding chamber (1) between two end flanges (2, 3) in several solenoid-like layers is characterized in that the section comprises an axial region of reduced current density (=notch region (12)), and the winding chamber (1) in the notch region (12) contains a first separating body (4) with a truncated conical envelope (5) which axially divides the winding chamber (1) into two partial chambers (6, 7), the superconducting strip conductor being guided over the truncated conical envelope (5) of the first separating body (4) from one partial chamber (6) into the other partial chamber (7) via a single-layer transfer winding (9), and a second separating body (10) is provided which supplements the first separating body (4) in the notch region (12) in a radial outer direction to form a circular cylinder, wherein the single-layer transfer winding (9) is disposed between the separating bodies (4, 10). The inventive magnet coil configuration thereby realizes an HTS coil with a notch region for correcting inhomogeneities, wherein bending of the strip conductor through a small radius of curvature is not necessary.
    • 超导磁体线圈构造包括至少一部分超导条形导体,其连续地卷绕在几个螺线管状层中的两个端部凸缘(2,3)之间的圆柱形卷绕腔(1)中,其特征在于,该部分包括 减小电流密度的轴向区域(=切口区域(12))和切口区域(12)中的卷绕室(1)包含具有截头圆锥形包络线(5)的第一分离体(4) 卷绕室(1)分成两个部分室(6,7),超导条状导体被引导到第一分离体(4)的截头圆锥形包络(5)从一个部分室(6)进入另一部分室 (9),并且设置有第二分离体(10),其在径向外侧方向上在凹口区域(12)中补充第一分离体(4)以形成圆柱体, w 在这里,单层转移绕组(9)设置在分离体(4,10)之间。 本发明的磁体线圈结构由此实现具有用于校正不均匀性的切口区域的HTS线圈,其中条形导体通过小的曲率半径的弯曲是不必要的。
    • 7. 发明申请
    • Tape-type superconductor with anisotropy of critical currents
    • 具有临界电流各向异性的带式超导体
    • US20110263432A1
    • 2011-10-27
    • US13064885
    • 2011-04-25
    • Alexander UsoskinKlaus Schlenga
    • Alexander UsoskinKlaus Schlenga
    • H01B12/02
    • H01L39/143H01L39/2454
    • A tape-type superconductor (1), comprising an elongated substrate (2), in particular a metal tape, and a continuous superconducting layer (3), in particular of a HTS type material, deposited on the substrate (2), is characterized in that Ic∥/Ic⊥≧1.5, with Ic∥ being the width density of critical current of the continuous superconducting layer (3) in parallel to the substrate (2) and in parallel to the elongated direction of the substrate (2), and with Ic⊥ being the width density of critical current of the continuous superconducting layer (3) in parallel to the substrate (2) and perpendicular to the elongated direction of the substrate (2). The tape-type superconductor has reduced ac losses.
    • 特征在于沉积在基板(2)上的长条基板(2),特别是金属带和连续超导层(3),特别是HTS型材料的带式超导体(1)的特征在于 在Ic∥/Ic⊥≥1.5中,其中Ic∥是连续超导层(3)平行于衬底(2)并与衬底(2)的细长方向平行的临界电流的宽度密度, 并且Ic⊥是连续超导层(3)平行于衬底(2)并垂直于衬底(2)的细长方向的临界电流的宽度密度。 磁带式超导体减少了交流损耗。
    • 9. 发明申请
    • Cryostat Having a Magnet Coil System, Which Comprises an LTS Section and an Encapsulated HTS Section
    • 具有磁体线圈系统的低温恒温器,其包含LTS部分和封装的HTS部分
    • US20090233797A1
    • 2009-09-17
    • US12225192
    • 2007-03-07
    • Klaus SchlengaMarion KlaeserThomas Arndt
    • Klaus SchlengaMarion KlaeserThomas Arndt
    • H01F6/04F17C3/02H01F6/06H01L39/00
    • H01F6/06G01R33/3804G01R33/3815H01F6/04
    • A cryostat (1) with a magnet coil system including superconductors for the production of a magnet field B0 in a measuring volume (3) has a plurality of radially nested solenoid-shaped coil sections (4, 5, 6) and which are electrically connected in series, at least one of which being an LTS section (5, 6) with a conventional low temperature superconductor (LTS) and at least one of which being an HTS section (4) including a high temperature superconductor (HTS), wherein the magnet coil system is located in a helium tank (9) of the cryostat (1) along with liquid helium at a helium temperature TL. The apparatus is characterized in that a chamber (11) is provided within which the HTS sections (4) are held having an internal portion with a sufficiently low pressure such that helium located therein at a temperature of TL is gaseous. The cryostat in accordance with the invention can be utilized to maintain HTS coil sections over a long period of time in a reliable fashion.
    • 具有包括用于在测量体积(3)中产生磁场B0的超导体的磁体线圈系统的低温恒温器(1)具有多个径向嵌套的螺线管状线圈部分(4,5,6),它们电连接 串联地,其中至少一个是具有常规低温超导体(LTS)的LTS部分(5,6),并且其中至少一个是包括高温超导体(HTS)的HTS部分(4),其中, 磁体线圈系统位于低温恒温器(1)的氦气罐(9)中以及氦温度TL下的液氦。 该装置的特征在于提供一个室(11),其中保持HTS部分(4)具有足够低压力的内部部分,使得位于其中的TL温度为气态的氦气。 根据本发明的低温恒温器可以用于以可靠的方式长时间地维持HTS线圈段。
    • 10. 发明授权
    • Superconductor magnet coil configuration
    • 超导体电磁线圈配置
    • US07330092B2
    • 2008-02-12
    • US11214852
    • 2005-08-31
    • Volker NiemannGerhard RothKlaus Schlenga
    • Volker NiemannGerhard RothKlaus Schlenga
    • H01F1/00
    • G01R33/3815H01F6/06H01F27/2847H01F27/34H01F41/048H01F41/082
    • A superconducting magnet coil configuration comprising at least one section of a superconducting strip conductor, which is continuously wound in a cylindrical winding chamber (1) between two end flanges (2, 3) in several solenoid-like layers is characterized in that the section comprises an axial region of reduced current density (=notch region (12)), and the winding chamber (1) in the notch region (12) contains a first separating body (4) with a truncated conical envelope (5) which axially divides the winding chamber (1) into two partial chambers (6, 7), the superconducting strip conductor being guided over the truncated conical envelope (5) of the first separating body (4) from one partial chamber (6) into the other partial chamber (7) via a single-layer transfer winding (9), and a second separating body (10) is provided which supplements the first separating body (4) in the notch region (12) in a radial outer direction to form a circular cylinder, wherein the single-layer transfer winding (9) is disposed between the separating bodies (4, 10). The inventive magnet coil configuration thereby realizes an HTS coil with a notch region for correcting inhomogeneities, wherein bending of the strip conductor through a small radius of curvature is not necessary.
    • 超导磁体线圈构造包括至少一部分超导条形导体,其连续地卷绕在几个螺线管状层中的两个端部凸缘(2,3)之间的圆柱形卷绕腔(1)中,其特征在于,该部分包括 减小电流密度的轴向区域(=切口区域(12))和切口区域(12)中的卷绕室(1)包含具有截头圆锥形包络线(5)的第一分离体(4) 卷绕室(1)分成两个部分室(6,7),超导条状导体被引导到第一分离体(4)的截锥形包络(5)从一个部分室(6)引导到另一部分室 (9),并且设置有第二分离体(10),其在径向外侧方向上在凹口区域(12)中补充第一分离体(4)以形成圆柱体, w 在这里,单层转移绕组(9)设置在分离体(4,10)之间。 本发明的磁体线圈结构由此实现具有用于校正不均匀性的切口区域的HTS线圈,其中条形导体通过小的曲率半径的弯曲是不必要的。