发明名称 |
ELECTRON OPTICAL APPARATUS, X-RAY EMITTING DEVICE AND METHOD OF PRODUCING AN ELECTRON BEAM |
摘要 |
It is described an electron optical arrangement, a X-ray emitting device and a method of creating an electron beam. An electron optical apparatus (1) comprises the following components along an optical axis (25): a cathode with an emitter (3) having a substantially planar surface (9) for emitting electrons; an anode (11) for accelerating the emitted electrons in a direction essentially along the optical axis (25); a first magnetic quadrupole lens (19) for deflecting the accelerated electrons and having a first yoke (41); a second magnetic quadrupole lens (21) for further deflecting the accelerated electrons and having a second yoke (51); and a magnetic dipole lens (23) for further deflecting the accelerated electrons.
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申请公布号 |
US2010020937(A1) |
申请公布日期 |
2010.01.28 |
申请号 |
US20070444745 |
申请日期 |
2007.10.08 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
HAUTMANN STEFAN;MARING WOLFRAM;HOLZAPFEL STEFFEN |
分类号 |
H01J35/30 |
主分类号 |
H01J35/30 |
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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