发明名称 |
AIR-COOLED END-WINDOW METAL-CERAMIC X-RAY TUBE FOR LOWER POWER XRF APPLICATIONS |
摘要 |
An X-ray tube device and a method for construction thereof which provides the cathode assembly and the anode assembly in a nose of the X-ray tube, wherein an emitter face of each assembly is directed toward an X-ray emission end thereof. The electrons emitted from the cathode assembly travel along a path outward until striking the anode assembly which then generates the X-rays which are directed toward a beryllium window in the X-ray tube. This advantageous structure enables the anode-to-window distance to be small, resulting in a large X-ray flux towards a sample. Furthermore, the small nose of the X-ray tube enables a fluorescence detector to be positioned in an optimal location because the X-ray tube's shape does not displace the fluorescence detector. |
申请公布号 |
EP0935811(B1) |
申请公布日期 |
2008.05.28 |
申请号 |
EP19980943509 |
申请日期 |
1998.09.01 |
申请人 |
VARIAN MEDICAL SYSTEMS TECHNOLOGIES, INC. |
发明人 |
TRESEDER, ROBERT, C. |
分类号 |
H01J35/14;H01J35/06;H01J35/16 |
主分类号 |
H01J35/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|