公开(公告)号：WO2009068891A1

公开(公告)日：2009-06-04

申请号：PCT/GB2008003979

申请日：2008-11-28

Applicant: OXFORD DIFFRACTION LTD ,  KUCHARCZYK DAMIAN ,  LOEFFEN PAUL WILLIAM

Inventor： KUCHARCZYK DAMIAN ,  LOEFFEN PAUL WILLIAM

IPC: H01J35/28

CPC classification number: H01J35/28

Abstract: An X-ray tube is described having a filament for generating electrons (5), a cathode, and an anode (8) which comprises an elongate member (17) having a fixed point relative to the sealed housing of the tube and an end that is moveable relative to the sealed housing. The longitudinal axis of the elongate member in a rest position is laterally displaced relative to the path of the accelerating electrons, whereby a spherical target surface on the moveable end of the member may be moved relative to the impinging electrons such that the spatial location of X-ray generation in the tube is invariant relative to the sealed housing, thereby spreading localised heating caused by the X-ray generation over a greater portion of the target surface. The member is typically driven such that the anode precesses about the X-ray beam.

Abstract translation: 描述了一种X射线管，其具有用于产生电子的灯丝（5），阴极和阳极（8），阳极（8）包括具有相对于管的密封外壳的固定点的细长构件（17） 可相对于密封壳体移动。 处于静止位置的细长构件的纵向轴线相对于加速电子的路径横向移位，由此在构件的可移动端部上的球形目标表面可以相对于撞击电子移动，使得X的空间位置 射线管中的射线产生相对于密封外壳是不变的，由此将由X射线产生的局部加热扩散到目标表面的更大部分上。 通常驱动部件使得阳极围绕X射线束进动。

公开(公告)号：WO2009068891A4

公开(公告)日：2009-06-04

申请号：PCT/GB2008/003979

申请日：2008-11-28

Applicant: OXFORD DIFFRACTION LIMITED ,  KUCHARCZYK, Damian ,  LOEFFEN, Paul, William

Inventor： KUCHARCZYK, Damian ,  LOEFFEN, Paul, William

IPC: H01J35/28

Abstract: An X-ray tube is described having a filament for generating electrons (5), a cathode, and an anode (8) which comprises an elongate member (17) having a fixed point relative to the sealed housing of the tube and an end that is moveable relative to the sealed housing. The longitudinal axis of the elongate member in a rest position is laterally displaced relative to the path of the accelerating electrons, whereby a spherical target surface on the moveable end of the member may be moved relative to the impinging electrons such that the spatial location of X-ray generation in the tube is invariant relative to the sealed housing, thereby spreading localised heating caused by the X-ray generation over a greater portion of the target surface. The member is typically driven such that the anode precesses about the X-ray beam.