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146 条记录 (耗时 0.025 秒)

    MR imaging magnet with body coil illuminating the imaging bore
    51.
    发明授权
    MR imaging magnet with body coil illuminating the imaging bore 有权
    具有身体线圈的MR成像磁体照射成像孔

    公开(公告)号：US07999546B2

    公开(公告)日：2011-08-16

    申请号：US12375553

    申请日：2007-07-04

    申请人： Stephen Paul Trowell ,  Neil Charles Tigwell

    发明人： Stephen Paul Trowell ,  Neil Charles Tigwell

    IPC分类号： G01V3/00

    CPC分类号： G01R33/28

    摘要： An imaging magnet has a patient bore for receiving a human or animal patient, including a body coil assembly having a body coil former and a body coil. The body coil assembly is provided with at least one source of light that is incorporated within the body coil assembly, and embedded within the body coil former, that radiates light into the patient bore.

    摘要翻译： 成像磁体具有用于接收人或动物患者的患者孔，包括具有身体线圈形成器和身体线圈的身体线圈组件。 身体线圈组件设置有至少一个光源，该光源结合在体线圈组件内，并且嵌入体内线圈成形器内，将光辐射到患者孔中。

    Electromagnet
    52.
    发明授权
    Electromagnet 有权
    电磁铁

    公开(公告)号：US07859375B2

    公开(公告)日：2010-12-28

    申请号：US12060666

    申请日：2008-04-01

    申请人： Andrew Farquhar Atkins ,  Graham Gilgrass ,  Andrew James Gray

    发明人： Andrew Farquhar Atkins ,  Graham Gilgrass ,  Andrew James Gray

    IPC分类号： H01F1/00 ,  H01F6/00 ,  H01F13/00 ,  H01F3/00 ,  H01F7/00 ,  H01F5/00

    CPC分类号： G01R33/3815 ,  H01F5/02 ,  H01F6/04 ,  H01F6/06 ,  H01F27/322 ,  H01F27/327

    摘要： An electromagnet comprising a plurality of coils of superconductive material, monolithically embedded in an embedding material, which is solid at the temperature of operation of the superconductive electromagnet, and a method for producing an electromagnet comprising a plurality of coils of superconductive material, comprising the steps of winding coils of superconductive material, retaining the coils at predetermined relative positions, and monolithically embedding the plurality of superconducting coils in an embedding material, which is solid at the temperature of operation of the superconductive electromagnet.

    摘要翻译： 一种电磁体，包括多个超导材料线圈，其整体地嵌入嵌入材料中，其在超导电磁体的操作温度下是固体的，以及一种用于制造包括多个超导材料线圈的电磁体的方法，包括步骤 的超导材料的绕组线圈，将线圈保持在预定的相对位置，并且将多个超导线圈单体嵌入嵌入材料中，该嵌入材料在超导电磁体的操作温度下是固体的。

    Apparatus for cooling
    54.
    发明授权
    Apparatus for cooling 有权
    冷却装置

    公开(公告)号：US07832216B2

    公开(公告)日：2010-11-16

    申请号：US11723165

    申请日：2007-03-16

    申请人： Eugene Astra

    发明人： Eugene Astra

    IPC分类号： F25B19/00

    CPC分类号： F25D3/10 ,  F25D19/00 ,  F25D2400/02 ,  H01F6/04

    摘要： Apparatus for cooling a cooled equipment, comprising: a cryogen vessel (10) housing the cooled equipment; a gaseous cryogen filling the cryogen vessel; a refrigerator (12) having a cooling surface exposed to the interior of the cryogen vessel (10) so as to cool the gaseous cryogen; and a gas current generator arranged to cause circulation of the gaseous cryogen freely within the cryogen vessel, such that the gaseous cryogen is cooled by the refrigerator, and is warmed by heat from the cooled equipment, thereby cooling the cooled equipment.

    摘要翻译： 用于冷却冷却设备的设备，包括：冷却设备的容器; 填充冷冻剂容器的气态冷冻剂; 具有暴露于所述冷冻剂容器（10）内部的冷却表面以冷却所述气态冷冻剂的冰箱（12）; 以及气体发生器，其布置成使致冷剂容器内的气态冷冻剂自由循环，使得气态冷冻剂被冰箱冷却，并通过来自冷却设备的热量加热，从而冷却冷却的设备。

    Radiation detector including means for indicating satisfactory operation
    55.
    发明授权
    Radiation detector including means for indicating satisfactory operation 失效
    辐射检测器包括用于指示令人满意的操作的装置

    公开(公告)号：US07368707B2

    公开(公告)日：2008-05-06

    申请号：US10512256

    申请日：2003-04-23

    申请人： William Frederick Croydon

    发明人： William Frederick Croydon

    IPC分类号： G12B13/00

    CPC分类号： G01T1/185

    摘要： A radiation detector, comprising a sensitive volume filled with a counter gas; an anode and a cathode each in communication with the counter gas; a voltage supply for maintaining a potential difference between the anode and the cathode, said potential difference being less than required to cause gas discharge in the counter gas. The radiation detector further comprises a photoemissive material in communication with the sensitive volume. The photoemissive material may be provided as a coating on the cathode. The radiation detector may further comprise a controllable light source for supplying photons of a known wavelength to the photoemissive material. Electrons may be emitted by the photoemissive material in response to the provision of said photons, said electrons causing avalanche breakdown of the counter gas, indicating satisfactory operation of the radiation detector.

    摘要翻译： 一种辐射检测器，包括填充有反气体的敏感体积; 每个与对流气体连通的阳极和阴极; 用于维持阳极和阴极之间的电位差的电压源，所述电位差小于在反气体中引起气体放电所需的电位差。 辐射检测器还包括与敏感体积连通的光发射材料。 光发射材料可以作为阴极上的涂层提供。 放射线检测器还可以包括用于将已知波长的光子提供给光发射材料的可控光源。 响应于所述光子的提供，电子可以由光发射材料发射，所述电子引起对流气体的雪崩击穿，表明辐射探测器的令人满意的操作。

    Method of determining a timing offset between a first clock and a second clock in a communications network
    56.
    发明授权
    Method of determining a timing offset between a first clock and a second clock in a communications network 有权
    确定通信网络中的第一时钟和第二时钟之间的定时偏移的方法

    公开(公告)号：US07120090B2

    公开(公告)日：2006-10-10

    申请号：US10532486

    申请日：2003-10-20

    申请人： James David Smith

    发明人： James David Smith

    IPC分类号： G04B47/00 ,  G04F8/00 ,  H04L7/00 ,  G06F1/12

    CPC分类号： H04J3/0667

    摘要： A system for determining a timing offset between a first clock and a second clock at respective first and second points in a communications network. A series of request signals is transmitted from the first point in the network to the second point in the network. A series of reply signals is transmitted from the second point in the network to the first point in the network. Each reply signal and a corresponding reply signal having a minimum round trip delay time are identified and a minimum single leg delay time is determined from the minimum round trip delay time. A timing offset between the clock values of the first clock and the second clock at a first instance is estimated, the estimation being based upon the minimum single leg delay time, and a transmission time and a reception time of one of the identified request signal and the corresponding reply signal, as given by the respective clocks at the transmission and reception points of the signal.

    摘要翻译： 一种用于在通信网络中的相应第一和第二点处确定第一时钟和第二时钟之间的定时偏移的系统。 一系列请求信号从网络中的第一点发送到网络中的第二个点。 一系列应答信号从网络中的第二个点发送到网络中的第一个点。 识别每个应答信号和具有最小往返行程延迟时间的对应应答信号，并根据最小往返行程延迟时间确定最小单次延迟时间。 估计在第一时刻的第一时钟和第二时钟的时钟值之间的定时偏移，该估计基于最小单次延迟时间，以及所识别的请求信号之一的发送时间和接收时间，以及 相应的应答信号，由信号的发送和接收点处的各个时钟给出。

    Aqueous sample testing apparatus
    57.
    发明授权
    Aqueous sample testing apparatus 失效
    水样试验仪

    公开(公告)号：US5801052A

    公开(公告)日：1998-09-01

    申请号：US680873

    申请日：1996-07-16

    申请人： William Bartlett-Hooker ,  Sanath Ediriweera ,  Stuart Ward

    发明人： William Bartlett-Hooker ,  Sanath Ediriweera ,  Stuart Ward

    IPC分类号： C12M1/34 ,  C12M1/00 ,  C12N1/00 ,  C12Q1/02 ,  C12M3/00 ,  B01F15/02

    CPC分类号： C12M45/00 ,  C12N1/00

    摘要： An apparatus for reconstituting dried bacteria includes a first reservoir for the storage of reconstituting solution, a pump via which the reservoir is coupled to one of a pair of hollow needles arranged side by side in operative association with an apparatus for raising or lowering the pair so that in use they can be lowered to pierce a closure bung of a container in which bacteria are sealed under vacuum, the one needle being effectively longer than the other of the two hollow needles so that consequent upon lowering of the pair, the one needle passes through the bung before the other effectively shorter of the two needles. The shorter of the two needles is coupled to a second reservoir for the transfer thereto, in use of the apparatus, of reconstitution solution from the first reservoir together with bacteria from the container.

    摘要翻译： 用于重构干细菌的装置包括用于储存重构溶液的第一储存器，泵，通过该泵将储存器联接到并排布置的一对空心针中的一个，与用于升高或降低该对的装置可操作地相关联 在使用中，它们可以被降低以刺穿细菌在真空下密封的容器的封闭栓，一个针实际上比两个中空针中的另一个更长，从而随着一对针的下降，一根针通过 通过砰砰之前的另一个有效地更短的两根针。 两个针中较短的一个连接到第二储存器，用于在使用该装置的同时将来自第一储存器的重构溶液与来自容器的细菌一起转移。

    Method and apparatus for compensating for drift in magnetic field strength in superconducting magnets
    60.
    发明授权
    Method and apparatus for compensating for drift in magnetic field strength in superconducting magnets 有权
    用于补偿超导磁体磁场强度漂移的方法和装置

    公开(公告)号：US09213073B2

    公开(公告)日：2015-12-15

    申请号：US14185273

    申请日：2014-02-20

    申请人： Nicholas Paul Aley

    发明人： Nicholas Paul Aley

    IPC分类号： G01R33/387 ,  G01R33/389 ,  G01R33/3815 ,  H01F6/06

    CPC分类号： G01R33/387 ,  G01R33/3815 ,  G01R33/389 ,  H01F6/06

    摘要： An MRI system has a cylindrical superconducting magnet assembly contained in a bore tube of a cylindrical vacuum vessel (OVC), and a gradient coil assembly situated within the OVC bore tube. In an imaging region within a bore of the gradient coil assembly, the magnet assembly produces a magnetic field that is subject to drift during operation of the MRI system. Compensating material is located at a radial position between the imaging region and the magnet in a location that will be heated over a range of temperatures during operation of the MRI system. The compensating material is adjustable between two magnetic phases in response to an applied physical characteristic, which is selectively applied thereto so as to change the compensating material from a first magnetization to a second magnetization, and thereby compensate the drift.

    摘要翻译： MRI系统具有包含在圆柱形真空容器（OVC）的孔管中的圆柱形超导磁体组件和位于OVC孔管内的梯度线圈组件。 在梯度线圈组件的孔内的成像区域中，磁体组件产生在MRI系统操作期间经受漂移的磁场。 在MRI系统的操作期间，补偿材料位于成像区域和磁体之间的径向位置，该位置将在温度范围内被加热。 响应于施加的物理特性，补偿材料在两个磁相之间是可调节的，其被选择性地施加到其上，以便将补偿材料从第一磁化改变为第二磁化，从而补偿漂移。