Analytical instrument with variable apertures for radiation beam
    1.
    发明申请
    Analytical instrument with variable apertures for radiation beam 有权
    具有可变孔径的分析仪器用于辐射束

    公开(公告)号:US20060108534A1

    公开(公告)日:2006-05-25

    申请号:US11257765

    申请日:2005-10-25

    IPC分类号: G01T1/24

    CPC分类号: G01N23/20008

    摘要: An X-ray analysis device makes use of a variable aperture for controlling the position and cross section of the X-ray beam. The variable aperture is configured to allow changes in the cross section and/or position of the beam by movement of one aperture component in one direction. In one embodiment, the aperture medium is a perforated disk that is rotated to expose different aperture holes to the beam. In another embodiment, the aperture medium is a perforated tape that is moved in a linear direction to expose different aperture holes to the beam. The tape may be wound about two axes to control its movement, or may be a continuous loop. A cassette may also be used to house the tape.

    摘要翻译: X射线分析装置利用可变孔径来控制X射线束的位置和横截面。 可变孔径被配置为允许通过一个孔径分量在一个方向上的移动来改变横梁的横截面和/或位置。 在一个实施例中,孔介质是被旋转以暴露到梁的不同孔径的多孔盘。 在另一个实施例中,孔径介质是穿过带状物,其沿直线方向移动以暴露到梁的不同孔径。 磁带可以围绕两个轴线缠绕以控制其运动,或者可以是连续的环路。 也可以使用盒式磁带来容纳磁带。

    Superconducting magnet system with drift compensation
    2.
    发明授权
    Superconducting magnet system with drift compensation 有权
    具有漂移补偿的超导磁体系统

    公开(公告)号:US07183769B2

    公开(公告)日:2007-02-27

    申请号:US11047637

    申请日:2005-02-02

    IPC分类号: G01V3/00

    摘要: The system describes a means and a method for stabilizing the magnetic field generated in the measuring volume of a high-resolution magnetic resonance spectrometer having an actively shielded magnet coil (4) which is located in a cryostat (2) and which is superconductingly short-circuited. The system comprises a compensation coil (12) which is decoupled from the magnet coil (4), and is disposed on the shielding coil (4b) of the magnet coil (4).

    摘要翻译: 该系统描述了用于稳定在高分辨率磁共振光谱仪的测量体积中产生的磁场的方法和方法,所述高分辨率磁共振光谱仪具有位于低温恒温器(2)中的主动屏蔽的磁体线圈(4),并且是超导短路的, 电路 该系统包括与磁体线圈(4)去耦的补偿线圈(12),并设置在电磁线圈(4)的屏蔽线圈(4b)上。

    Method and apparatus for determining the fat content
    3.
    发明授权
    Method and apparatus for determining the fat content 有权
    用于确定脂肪含量的方法和装置

    公开(公告)号:US06972566B2

    公开(公告)日:2005-12-06

    申请号:US10764981

    申请日:2004-01-26

    IPC分类号: G01N24/08 G01R33/44 G01V3/00

    CPC分类号: G01R33/44 G01N24/08

    摘要: A description is given of a method for determining the content of a first component of a sample, which first component provides a first NMR signal and has a first self-diffusion coefficient D1, the sample additionally containing at least one further component which provides a further NMR signal and has a larger self-diffusion coefficient D2, in particular for determining the fat content of a hydrous sample, with the aid of a low-resolution nuclear magnetic resonance (NMR) pulse spectrometer, the sample being excited by a radio-frequency (RF) excitation pulse and being exposed to a magnetic gradient field and to a sequence of further refocusing RF pulses for generating spin echo signals, the spin echo signals being detected and their amplitude values being determined, from which a value for the content of the first component of the sample is determined. The magnetic gradient field is not switched off during the sequence of further refocusing RF pulses.

    摘要翻译: 给出了用于确定样品的第一组分的含量的方法的描述,该第一组分提供第一NMR信号并具有第一自扩散系数D 1,样品另外含有 至少一个另外的组分,其提供另外的NMR信号并且具有较大的自扩散系数D 2,特别是用于通过低分辨率核磁铁来确定含水样品的脂肪含量 共振(NMR)脉冲光谱仪,样品被射频(RF)激发脉冲激发并暴露于磁梯度场和进一步重新聚焦RF脉冲序列以产生自旋回波信号,检测到自旋回波信号 并且确定它们的振幅值,由此确定样品的第一组分的含量的值。 在进一步重新聚焦RF脉冲的序列期间,磁梯度场不被关闭。

    Superconducting magnet system
    4.
    发明授权
    Superconducting magnet system 有权
    超导磁体系统

    公开(公告)号:US06727699B2

    公开(公告)日:2004-04-27

    申请号:US10050996

    申请日:2002-01-22

    申请人: Arne Kasten

    发明人: Arne Kasten

    IPC分类号: G01V300

    CPC分类号: G01R33/389 G01R33/3815

    摘要: The invention concerns a means and a method for stabilizing a magnetic field generated by a superconductingly short-circuited main coil located in a cryostat in the measuring volume of a high-resolution magnetic resonance spectrometer, which comprises compensation coils which are dimensioned and positioned such that they, in their entirety, are suited to largely compensate for field drifts of the superconductingly short-circuited main coil in the measuring volume. The drift compensation coils consist of HTS material and are disposed radially outside of the main coil at a higher temperature level.

    摘要翻译: 本发明涉及一种用于稳定位于高分辨率磁共振光谱仪的测量体积中的低温恒温器中的超导短路主线圈所产生的磁场的方法和方法,该补偿线圈的尺寸和位置使得 它们整体上适合于大大地补偿测量体积中超导短路主线圈的场漂移。 漂移补偿线圈由HTS材料组成,并在较高的温度水平位于主线圈的径向外侧。

    Apparatus and method for the rapid discharge of a superconducting magnet
coil
    5.
    发明授权
    Apparatus and method for the rapid discharge of a superconducting magnet coil 失效
    用于快速放电超导磁体线圈的装置和方法

    公开(公告)号:US5847633A

    公开(公告)日:1998-12-08

    申请号:US861489

    申请日:1997-05-22

    摘要: A device for the safe discharge of a superconducting magnet coil (4) which is located inside a cryostat (2) and superconductively short-circuited by a superconducting switch (7) providing at or in the cryostat (2) a transmitter (10) of electromagnetic energy being located at a temperature level considerably above the cryogenic temperature of the superconducting magnet coil (4), which transmitter can be switched on quickly from outside, and by arranging in the region of the superconducting switch (7) at the cryogenic temperature level of the superconducting magnet coil (4) a receiver (20) for the emitted electromagnetic energy, which transmits the received energy directly or indirectly to a heating device (15) of the superconducting switch (7) or which activates an auxiliary energy source (41) in the region of the superconducting switch (7) , which on its turn effects a heating of the superconducting switch (7), so that it becomes normal-conducting and causes a discharge process of the superconducting magnet coil (4) via resistors (18) and/or diodes (19), being located at the cryogenic temperature level, there being no electrically conducting connection between transmitter (10; 10') and receiver (20). In this way, the magnet can be discharged without contact.

    摘要翻译: 一种用于安全地放电位于低温恒温器(2)内部并由超导开关(7)短路的超导磁体线圈(4)的装置,所述超导开关(7)在低温恒温器(2)处或其中提供低温恒温器(2)的发射器(10) 电磁能位于明显高于超导磁体线圈(4)的低温温度的温度水平,该发射器可以从外部快速接通,并且通过在超导开关(7)的区域内以低温温度排列 超导磁体线圈(4)的发射电磁能的接收器(20),其将所接收的能量直接或间接地传递到超导开关(7)的加热装置(15)或激活辅助能量源(41) )在超导开关(7)的区域中,其反过来影响超导开关(7)的加热,使得其变为正常导通并且导致 超导磁体线圈(4)经由电阻器(18)和/或二极管(19)位于低温温度水平,在发射器(10; 10')和接收器(20)。 以这种方式,可以不接触地排出磁体。

    Apparatus and method for the rapid discharge of superconducting magnet
coil
    6.
    发明授权
    Apparatus and method for the rapid discharge of superconducting magnet coil 失效
    超导磁体线圈快速放电的装置和方法

    公开(公告)号:US5686877A

    公开(公告)日:1997-11-11

    申请号:US559363

    申请日:1995-11-16

    摘要: A device for the safe discharge of a superconducting magnet coil (4) which is located inside a cryostat (2) and superconductively short-circuited by a superconducting switch (7) providing at or in the cryostat (2) a transmitter (10) of electromagnetic energy being located at a temperature level considerably above the cryogenic temperature of the superconducting magnet coil (4), which transmitter can be switched on quickly from outside, and by arranging in the region of the superconducting switch (7) at the cryogenic temperature level of the superconducting magnet coil (4) a receiver (20) for the emitted electromagnetic energy, which transmits the received energy directly or indirectly to a heating device (15) of the superconducting switch (7) or which activates an auxiliary energy source (41) in the region of the superconducting switch (7), which on its turn effects a heating of the superconducting switch (7), so that it becomes normal-conducting and causes a discharge process of the superconducting magnet coil (4) via resistors (18) and/or diodes (19), being located at the cryogenic temperature level, there being no electrically conducting connection between transmitter (10; 10') and receiver (20). In this way, the magnet can be discharged without contact.

    摘要翻译: 一种用于安全地放电位于低温恒温器(2)内部并由超导开关(7)短路的超导磁体线圈(4)的装置,所述超导开关(7)在低温恒温器(2)处或其中提供低温恒温器(2)的发射器(10) 电磁能位于明显高于超导磁体线圈(4)的低温温度的温度水平,该发射器可以从外部快速接通,并且通过在超导开关(7)的区域内以低温温度排列 超导磁体线圈(4)的发射电磁能的接收器(20),其将所接收的能量直接或间接地传递到超导开关(7)的加热装置(15)或激活辅助能量源(41) )在超导开关(7)的区域中,其反过来影响超导开关(7)的加热,使得其变为正常导通并且引起s的放电过程 通过位于低温温度水平的电阻器(18)和/或二极管(19)的高导磁体线圈(4),在发射器(10; 10')和接收器(20)。 以这种方式,可以不接触地排出磁体。

    Magnet system with superconducting field coils
    7.
    发明授权
    Magnet system with superconducting field coils 失效
    具超导磁场线圈的磁体系统

    公开(公告)号:US5276399A

    公开(公告)日:1994-01-04

    申请号:US775980

    申请日:1991-10-28

    CPC分类号: G01R33/3815 G01R33/421

    摘要: In a magnet system with two coil systems of different mean diameter arranged coaxially with respect to the longitudinal axis of the system defined by the direction of the field in the homogeneity region, which are rotationally symmetrical and are arranged symmetrically about the transverse median plane of the system perpendicular to the longitudinal axis and can carry exciting currents which result in overlapping magnetic fields that compensate, at least approximately, for the dipole fields of the two coil systems, an operating mode selector switch device (22) configured as a superconducting network is provided, by means of which the magnet system (10) can also be switched, as an alternative to the operating mode which provides considerable dipole-field compensation in the outer space of the magnet system (10), to that operating mode in which the magnetic fields generated by the two coil systems (11 and 12) at the center thereof are aligned in the same direction. In a special configuration, the ratio B.sub.0i :B.sub.0a between the values of the field strengths B.sub.0 1 and B.sub.a generated by the inner field coil (11) and the outer field coil (12) is equal to 3.

    摘要翻译: PCT No.PCT / DE90 / 00300 Sec。 371日期1991年10月28日 102(e)日期1991年10月28日PCT 1990年4月25日PCT PCT。 出版物WO90 / 日期为1990年11月15日。在具有不同平均直径的两个线圈系统的磁体系统中,相对于由均匀区域中的场的方向限定的系统的纵向轴线同轴地布置,该旋转对称并且对称地布置 关于垂直于纵向轴线的系统的横向中间平面,并且可以承载导致重叠的磁场的激励电流,至少大体上补偿两个线圈系统的偶极子场,操作模式选择器开关装置(22) 配置为超导网络,通过该磁体系统(10)也可以切换,作为在磁体系统(10)的外部空间中提供相当大的偶极场补偿的操作模式的替代, 其中由两个线圈系统(11和12)在其中心产生的磁场在相同方向上对准的操作模式。 在特殊构造中,内磁场线圈(11)和外磁场线圈(12)产生的场强B01和Ba的值之间的比率B0i:B0a等于3。

    Method and device for compensating undesirable side bands in nuclear
magnetic resonance spectra
    8.
    发明授权
    Method and device for compensating undesirable side bands in nuclear magnetic resonance spectra 失效
    用于补偿核磁共振谱中不期望的边带的方法和装置

    公开(公告)号:US5191287A

    公开(公告)日:1993-03-02

    申请号:US697682

    申请日:1991-05-09

    CPC分类号: G01R33/46 G01R33/4625

    摘要: The present invention relates to a method and a device for compensating undesirable side bands in nuclear magnetic resonance spectrometers. The frequency (.omega..sub.m) and the phase of rotation of the sample (10) are detected by means of a light sensor (12) and supplied to a compensation generator (18). The latter generates modulation signals (44 and 43) for modulating the amplitude and the phase of the detected nuclear magnetic signal of the sample, using an amplitude modulator (13) and a phase modulator (14), the modulation frequency being equal to an integral multiple, including the simple value, of the frequency of rotation (.omega..sub.m) of the sample. The additional frequency components heterodyne with the side bands provoked by the rotation of the sample (10) in the static magnetic field (B.sub.O), whereby the said side bands are eliminated.

    摘要翻译: 本发明涉及用于补偿核磁共振光谱仪中的不期望的边带的方法和装置。 通过光传感器(12)检测样品(10)的频率(ωm)和旋转相位,并将其提供给补偿发生器(18)。 后者产生调制信号(44和43),用于使用振幅调制器(13)和相位调制器(14)调制检测到的核磁信号的振幅和相位,调制频率等于积分 包括样本的旋转频率(ωm)的多个,包括简单的值。 附加频率分量与由频带(10)在静磁场(BO)中的旋转引起的侧带的外差,由此消除所述边带。

    Analysis device with variably illuminated strip detector
    9.
    发明授权
    Analysis device with variably illuminated strip detector 有权
    具有可变照明条状探测器的分析装置

    公开(公告)号:US07263161B2

    公开(公告)日:2007-08-28

    申请号:US11236651

    申请日:2005-09-28

    IPC分类号: G01N23/20

    CPC分类号: G01N23/20 G01T1/2914

    摘要: An X-ray or neutron-optical analysis device comprising means for directing radiation from a source (1) onto a sample (2), and a detector (7) with n substantially identical detector elements (Di) which are disposed parallel, next to each other in a first direction x and which extend in strips in a second direction y, wherein i=1, . . . n, for one-dimensional spatially-resolved detection of radiation reflected, scattered or diffracted by the sample (2) onto the detector (7), and with a detection electronics for processing the detector signals of the n detector elements (Di), wherein the detection electronics can reliably process a maximum radiation intensity per detector element (Di) without overloading, is characterized in that an optical element is disposed in front of the detector (7) which covers or weakens radiation incident on the surfaces of the respective n detector elements (Di) in correspondence with a predetermined, non-constant transmission function f(x) and/or the optical element comprises a collimator (6) which can be displaced along the strip direction y. The inventive analysis device permits artificial enlargement of the dynamic range of the detector (7).

    摘要翻译: 一种X射线或中子光学分析装置,包括用于将来自源(1)的辐射引导到样品(2)上的装置,以及具有n个基本上相同的检测器元件(D)的检测器(7) ),它们在第一方向x彼此相邻地平行设置,并且在第二方向y上以条状延伸,其中i = 1。 。 。 n,用于由样品(2)反射,散射或衍射到检测器(7)上的辐射的一维空间分辨检测,以及用于处理n个检测器元件的检测器信号的检测电子装置(D& 其中检测电子装置可以可靠地处理每个检测器元件的最大辐射强度而不过载,其特征在于,光学元件设置在检测器的前面( 7),其对应于预定的非常数透射函数f(x)覆盖或削弱入射在各个n个检测器元件(D SUB)上的辐射的辐射, 准直器(6),其可沿条带方向y移位。 本发明的分析装置允许人造扩大检测器(7)的动态范围。

    NMR high field magnet coil system with superconducting capability and having an outwardly protruding inner coil section
    10.
    发明授权
    NMR high field magnet coil system with superconducting capability and having an outwardly protruding inner coil section 有权
    NMR高场磁体线圈系统,具有超导能力并具有向外突出的内线圈段

    公开(公告)号:US06774752B2

    公开(公告)日:2004-08-10

    申请号:US10345491

    申请日:2003-01-17

    IPC分类号: H01F722

    摘要: The invention concerns an NMR (nuclear magnetic resonance) high field magnet coil system comprising superconducting conductor structures for generating a homogeneous magnetic field B0 in a measuring volume (23) with several radially nested solenoidal coil sections (12, 13, 31), which is characterized in that the radially innermost coil section (31) is wound with a band-shaped superconductor with an aspect ratio (width to thickness) >3 on a coil support which axially projects, at least at one axial end, past the winding packet of the radially neighboring coil section (12) and the band-shaped superconductor is guided on this side tangentially towards the outside to a region of reduced magnetic field strength and terminates in at least one electrical connecting point (16). This permits use of a brittle band-shaped superconductor for the innermost coil system (31) which cannot be strongly bent at the upper edge.

    摘要翻译: 本发明涉及一种包括超导导体结构的NMR(核磁共振)高场磁体线圈系统,用于在具有多个径向嵌套的螺线管线圈段(12,13,31)的测量体积(23)中产生均匀磁场B0, 其特征在于,径向最内侧的线圈部分(31)在线圈支架上缠绕有长宽比(宽度 - 厚度)> 3的带状超导体,至少在一个轴向端部沿轴向突出超过绕组包 径向相邻的线圈部分(12)和带状超导体在该侧面上朝向外侧切向导致磁场强度降低的区域,并且终止于至少一个电连接点(16)。 这允许对最上面的线圈系统(31)使用脆性带状超导体,其不能在上边缘处强烈弯曲。