会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 31. 发明申请
    • LINEAR ACCELERATOR
    • 线性加速器
    • WO99040759A1
    • 1999-08-12
    • PCT/GB1999/000187
    • 1999-02-05
    • H05H7/18H05H9/04
    • H05H9/04H05H7/18
    • This device allows the variation of the coupling between two points in an RF circuit in a very simple way whilst maintaining the RF phase relationship and varying the relative magnitude of the RF fields. The device is characterised by a simple mechanical control of coupling value, that has negligible effect on the phase shift across the device. This is achieved by the simple rotation of the polarisation of a TE111 mode inside a cylindrical cavity. Such a device does not contain resistive elements, and the sliding mechanical surfaces are free from high RF currents. This device finds an application in standing wave linear accelerators, where it is desirable to vary the relative RF field in one set of cavities with respect to another, in order that the accelerator can operate successfully over a wide range of energies.
    • 该装置允许以非常简单的方式在RF电路中的两个点之间的耦合变化,同时保持RF相位关系并改变RF场的相对幅度。 该器件的特征在于耦合值的简单机械控制,对于跨器件的相移具有可忽略的影响。 这通过在圆柱形腔内的TE111模式的极化的简单旋转来实现。 这种装置不包含电阻元件,并且滑动机械表面没有高RF电流。 该装置在驻波线性加速器中发现了一种应用,其中期望相对于另一组空腔改变相对RF场,以便加速器能够在宽范围的能量范围内成功地运行。
    • 39. 发明申请
    • X-RAY APPARATUS
    • X-RAY装置
    • WO2009080080A1
    • 2009-07-02
    • PCT/EP2007/011342
    • 2007-12-21
    • ELEKTA AB (PUBL)THE INSTITUTE OF CANCER RESEARCHBROWN, Kevin, JohnTHOMPSON, Maria, GiuliaROBERTS, David, AnthonyEVANS, Philip, MarkHANSEN, Vibeke, Nordmark
    • BROWN, Kevin, JohnTHOMPSON, Maria, GiuliaROBERTS, David, AnthonyEVANS, Philip, MarkHANSEN, Vibeke, Nordmark
    • H05H9/04
    • H05H7/12H01J35/00H01J2235/08H05H6/00H05H9/04
    • X-ray apparatus comprises a linear accelerator adapted to produce a beam of electrons at one of at least two selectable energies and being controlled to change the selected energy on a periodic basis, and a target to which the beam is directed thereby to produce a beam of x-radiation, the target being non- homogenous and being driven to move periodically in synchrony with the change of the selected energy. In this way, the target can move so that a different part is exposed to the electron beam when different pulses arrive. This enables the appropriate target material to be employed depending on the selected energy. The easiest form of periodic movement for the target is likely to be a rotational movement. The target can be immersed in a coolant fluid such as water. The linear accelerator can be of the type disclosed in WO2006/097697A1. The target preferably contains at least one exposed area of tungsten and/or at least one exposed area of carbon. These can be present as inhomogeneities in the material of which the target is composed, such as Carbon inserts in a Tungsten substrate (or vice versa), alternating segments of Carbon and Tungsten, Carbon and Tungsten inserts in a substrate of a third material, or arrangements involving other materials in addition to or instead of Carbon and/or Tungsten. Alternatively, the target can be of a homogenous material but have inhomogeneities in its thickness to cater for the different electron energies. The same concept can be applied to the filter. A detector can be provided, operating in synchrony with the energy variation. Such an x-ray apparatus can form a part of a radiotherapy apparatus, in which case the first selected energy can be a diagnostic energy and a second selected energy a therapeutic energy.
    • X射线装置包括线性加速器,其适于以至少两个可选择的能量之一产生电子束,并被控制以周期性地改变所选择的能量,以及射束被引导从而产生射束 的x辐射,目标是不均匀的并被驱动以与所选择的能量的变化同步地周期性地移动。 以这种方式,当不同的脉冲到达时,目标可以移动,使得不同的部分暴露于电子束。 这使得能够根据所选择的能量使用适当的目标材料。 目标的最简单的周期性运动形式可能是旋转运动。 目标可以浸入冷却液如水中。 线性加速器可以是WO2006 / 097697A1中公开的类型。 目标优选地包含钨的至少一个暴露区域和/或至少一个暴露的碳区域。 这些可以作为靶材组成的材料中的不均匀性,例如在钨基底(或反之亦然)中的碳插入物),碳和钨的交替段,碳和钨插入物在第三材料的衬底中,或 除碳或/或钨之外还有其他材料的安排。 或者,靶可以是均质材料,但是其厚度具有不均匀性以适应不同的电子能量。 相同的概念可以应用于过滤器。 可以提供与能量变化同步操作的检测器。 这种X射线设备可以形成放射治疗设备的一部分,在这种情况下,第一选择的能量可以是诊断能量,而第二选择的能量可以是治疗能量。