发明名称 |
X-ray tube provided with a rare earth anode |
摘要 |
X-rays of a specific wavelength are required for some analytical applications. Such soft X-rays can be obtained by irradiating a secondary target with X-rays of a suitable wavelength. According to the invention there is formed an X-ray tube 1 with an anode surface layer 7 containing a rare earth metal, preferably Gd or Dy. When a secondary target containing La is irradiated with K radiation from such a tube, La K radiation is generated which can be used for analysis of elements of the fifth row of the periodic table. In a preferred embodiment the rare earth metal is bonded to the anode body 4 by way of an intermediate layer 8 of Ti or Mo.
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申请公布号 |
US6385295(B1) |
申请公布日期 |
2002.05.07 |
申请号 |
US20000713875 |
申请日期 |
2000.11.16 |
申请人 |
U.S. PHILIPS CORPORATION |
发明人 |
VAN DE VORST MICHEL THEODORUS HENRICUS;DRESENS JACOBUS LOUIS |
分类号 |
G21K5/08;H01J35/08;H05G1/00;(IPC1-7):H01J35/08 |
主分类号 |
G21K5/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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