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
    • 6. 发明申请
    • SYSTEMS, METHODS AND DEVICES FOR X-RAY DEVICE FOCAL SPOT CONTROL
    • 用于X射线装置对焦点控制的系统,方法和装置
    • WO2005104801A2
    • 2005-11-10
    • PCT/US2005/014917
    • 2005-04-28
    • VARIAN MEDICAL SYSTEMS TECHNOLOGIES, INC.
    • ANDREWS, Gregory, C.SMITH, Ricky
    • G21G4/00H01J35/00H05G1/02H05G1/52H05H1/00
    • H05G1/52H05G1/025
    • Systems, methods and devices for implementing automatic control of focal spot Z axis positioning are disclosed for use with an x-ray device having an x-ray tube positioned within a housing and configured for thermal communication with a temperature control system. Control circuitry, and a position sensing device configured to determine the distance between the focal spot and a reference point related to the x-ray device, are coupled with a control module. The position sensing device sends information concerning the relative distance between the focal spot and the reference point to the control module which compares the received information with a predetermined desired distance. If the received information varies by an unacceptable large margin from the desired distance, the control module sends a corresponding signal to the control circuitry which causes the temperature control system to implement an appropriate change to a heat transfer parameter associated with the x-ray device.
    • 公开了用于实现焦斑Z轴定位的自动控制的系统,方法和装置,其与具有位于壳体内的x射线管的X射线装置一起使用,并被配置为与温度控制系统进行热通信。 控制电路和配置成确定焦斑与与x射线装置相关的参考点之间的距离的位置感测装置与控制模块耦合。 位置检测装置将关于焦点和参考点之间的相对距离的信息发送到控制模块,该控制模块将接收到的信息与预定的期望距离进行比较。 如果接收到的信息从期望的距离变化不可接受的大余量,则控制模块向控制电路发送相应的信号,该控制电路使得温度控制系统对与x射线设备相关联的传热参数进行适当的改变。
    • 7. 发明申请
    • CATHODE HEAD WITH FOCAL SPOT CONTROL
    • 阴影头与焦点控制
    • WO2005077069A2
    • 2005-08-25
    • PCT/US2005/004139
    • 2005-02-09
    • VARIAN MEDICAL SYSTEMS TECHNOLOGIES, INC.
    • SMITH, Ricky
    • H01J29/46H01J29/70H01J35/00H01J35/06H01J35/08H01J35/10H01J35/14H01J35/22H01J35/30H05G1/52
    • H01J35/06H01J35/14
    • A cathode head (200) is provide that is suitable for use in an x-ray device (100) that includes an anode (300) having a target surface (304) configured and arranged to receive electrons emitted by the cathode head (200). The cathode head (200) may be constructed of magnetic or non-magnetic material and includes an emitter structure (202) carrying a filament (204) that defines a longitudinal axis about which is disposed one or more magnetic elements such as coils (208). The filament (204) is configured and arranged to emit an electron beam that defines a focal spot on the target surface (304) of the anode (300). The magnetic coil, or coils (208), disposed about the longitudinal axis defined by the filament (204) generate a magnetic field that enables control of the location of the focal spot on the target surface of the anode.
    • 提供一种阴极头(200),其适用于包括阳极(300)的x射线装置(100),所述阳极(300)具有配置和布置成接收由阴极头(200)发射的电子的目标表面(304) 。 阴极头(200)可以由磁性或非磁性材料构成,并且包括承载限定纵向轴线的细丝(204)的发射体结构(202),围绕所述纵向轴设置一个或多个磁性元件,例如线圈(208) 。 灯丝(204)被配置和布置成发射限定阳极(300)的目标表面(304)上的焦点的电子束。 围绕由灯丝(204)限定的纵向轴线设置的电磁线圈(208)产生磁场,其能够控制焦斑在阳极的目标表面上的位置。