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    Magnetic resonance system and method
    6.
    发明申请
    Magnetic resonance system and method 失效

    公开(公告)号：US20060066311A1

    公开(公告)日：2006-03-30

    申请号：US10953924

    申请日：2004-09-29

    申请人： Glen Koste ,  Ronald Watkins ,  Richard Frey ,  Matthew Nielsen ,  Joseph Iannotti ,  Todd Tolliver

    发明人： Glen Koste ,  Ronald Watkins ,  Richard Frey ,  Matthew Nielsen ,  Joseph Iannotti ,  Todd Tolliver

    IPC分类号： G01V3/00

    CPC分类号： G01R33/283

    摘要： A magnetic resonance (MR) system and method for generating information about an object is provided. The MR system comprises at least one MR detector configured to sense a plurality of electromagnetic signals and a modulator coupled to the MR detector and configured to modulate optical signals with the electromagnetic signals to generate corresponding modulated optical signals. The MR system further comprises a resonant matching circuit configured for matching an impedance of the MR detector to an impedance of the modulator to achieve at least one of a voltage gain or a noise performance. An optical conduit coupled to the modulator is configured to transmit the modulated optical signals from within a shielded environment to outside the shielded environment. A signal detector coupled to the optical conduit is configured to convert the modulated optical signals to electrical signals.

    System and method for X-ray generation
    7.
    发明申请
    System and method for X-ray generation 失效
    用于X射线产生的系统和方法

    公开(公告)号：US20060222147A1

    公开(公告)日：2006-10-05

    申请号：US11096488

    申请日：2005-03-31

    申请人： Robert Filkins ,  John Price ,  Brian Lawrence ,  Matthew Nielsen ,  Joseph Manak ,  Bruce Dunham

    发明人： Robert Filkins ,  John Price ,  Brian Lawrence ,  Matthew Nielsen ,  Joseph Manak ,  Bruce Dunham

    IPC分类号： H05G2/00 ,  G21G4/00 ,  H01J35/00

    CPC分类号： H05G2/00

    摘要： A system for generating a tunable X-ray pulse comprises a first electron beam source configured to direct a first electron pulse of predetermined energy and pulse length towards a first interaction zone, a laser beam source configured to direct a first photon pulse of predetermined energy and pulse length towards the first interaction zone to interact with the first electron pulse. The first interaction produces a substantially monochromatic second photon pulse of higher photon energy directed towards a second interaction zone, and a second electron beam source configured to direct a second electron pulse of predetermined energy and pulse length towards the second interaction zone so that the second interaction produces an X-ray pulse of predetermined energy and pulse length in a cascaded inverse Compton scattering (ICS) configuration.

    摘要翻译： 一种用于产生可调谐X射线脉冲的系统包括：第一电子束源，被配置为将预定能量和脉冲长度的第一电子脉冲引导到第一相互作用区域，激光束源被配置为引导预定能量的第一光子脉冲;以及 脉冲长度朝向第一相互作用区域与第一电子脉冲相互作用。 所述第一相互作用产生指向第二相互作用区的较高光子能量的基本上单色的第二光子脉冲，以及被配置成将预定能量和脉冲长度的第二电子脉冲引向所述第二相互作用区域的第二电子束源， 在级联反康普顿散射（ICS）配置中产生预定能量和脉冲长度的X射线脉冲。

    Piezoelectric micro positioner for large temperature range
    9.
    发明申请
    Piezoelectric micro positioner for large temperature range 审中-公开
    压电式微型定位器适用于大温度范围

    公开(公告)号：US20050151443A1

    公开(公告)日：2005-07-14

    申请号：US11014282

    申请日：2004-12-16

    申请人： Charles Seeley ,  Matthew Nielsen ,  Jeffrey Fortin

    发明人： Charles Seeley ,  Matthew Nielsen ,  Jeffrey Fortin

    IPC分类号： H01L41/053 ,  H02N2/00 ,  H01L41/04

    CPC分类号： H02N2/02 ,  H01L41/053

    摘要： Disclosed are a piezoelectric actuator operable over a temperature range, and a method of operating a piezoelectric actuator. The piezoelectric actuator, generally, comprises a support structure, a piezoelectric material supported by the support structure, and an insert disposed between the support structure and the piezoelectric material. The piezoelectric material and the insert are positioned in series, the piezoelectric material and the insert each have a respective length, and together the piezoelectric material and the insert have a combined length. The length of the piezoelectric material changes in response to a voltage applied to the piezoelectric material. Also, the respective lengths of the piezoelectric material and the insert change, in opposite directions, in response to the same change in temperature, and, in this way, the insert mitigates changes in the combined length of the insert and the piezoelectric material due to temperature changes.

    摘要翻译： 公开了一种在温度范围内可操作的压电致动器以及操作压电致动器的方法。 压电致动器通常包括支撑结构，由支撑结构支撑的压电材料以及设置在支撑结构和压电材料之间的插入件。 压电材料和插入件串联放置，压电材料和插入件各自具有相应的长度，并且压电材料和插入件的组合长度一起组合。 压电材料的长度响应于施加到压电材料的电压而变化。 此外，压电材料和插入件的相应长度响应于相同的温度变化而相反地改变，并且以这种方式，插入件减轻了插入件和压电材料的组合长度的变化，由于 温度变化。