发明名称 |
Multiple sheet beam gridded electron gun |
摘要 |
A gun for generating a multiple sheet beams 50 of electrons has a flat surfaced cathode 10 with parallel protruding ridges 12 of non-emitting material forming parallel focus electrodes for the sheet beamlets. A control grid of parallel bars 14 is aligned with the ridges 12 to reduce grid interruption. The beamlets may be focussed between support bars 54 of a foil anode 52 for passing the beam into a high-pressure volume such as a gas laser 48. The ridges are formed by inserting non-emissive bent sheets into grooves 58 in the cathode, which are dovetailed to hold them.
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申请公布号 |
US4873468(A) |
申请公布日期 |
1989.10.10 |
申请号 |
US19880194638 |
申请日期 |
1988.05.16 |
申请人 |
VARIAN ASSOCIATES, INC. |
发明人 |
MIRAM, GEORGE V.;GREEN, MICHAEL C.;MERDINIAN, GEORGE K. |
分类号 |
H01J3/02;H01J33/00 |
主分类号 |
H01J3/02 |
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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