公开(公告)号：EP1599883A2

公开(公告)日：2005-11-30

申请号：EP04713782.3

申请日：2004-02-23

申请人： Xoft Microtube, Inc.

发明人： RUSCH, Thomas, W. ,  SMITH, Peter, C. ,  HANSEN, Steven, D. ,  LOVOI, Paul, A. ,  PELLINEN, Donald, G.

IPC分类号： G21G4/00

CPC分类号： H01J35/08 ,  H01J35/32 ,  H01J2235/081 ,  H01J2235/087 ,  H01J2235/164

摘要： A miniature x-ray tube has an anode assembly capable of transmitting x-rays through the anode and over a wide angular range. The anode (62) is in the shape of a cone or truncated cone with an axis on the x-ray tube frame axis, formed of low Z material with high thermal conductivity for heat dissipation. A target material on the anode body is in a thin layer (20), which may be approximately 0.5 to 5 microns thick. In one embodiment a tube evacuation exhaust port (64) at the tail end of the anode assembly forms a cavity for a getter (56), with a pinched-off tubulation (48) at the end of the cavity.