发明名称 |
Transmitting type secondary electron surface and electron tube |
摘要 |
A transmission secondary electron emitter is provided which emits secondary electrons generated by the incidence of primary electrons. The transmission secondary electron emitter includes a secondary electron emitting layer which is made of diamond or a material containing diamond as a main component, and of which one surface is the surface of incidence for making the primary electrons incident thereon, and the other surface is the surface of emission for emitting the secondary electrons. Also included is a voltage applying arrangement for applying a predetermined voltage between the surfaces of the incidence and the emission of the secondary electron emitting layer to form an electric field in the secondary electron emitting layer.
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申请公布号 |
US7208874(B2) |
申请公布日期 |
2007.04.24 |
申请号 |
US20040507011 |
申请日期 |
2004.09.08 |
申请人 |
HAMAMATSU PHOTONICS K. K. |
发明人 |
NIIGAKI MINORU;UCHIYAMA SHOICHI;KAN HIROFUMI |
分类号 |
H01J1/35;H01J40/06;H01J1/32;H01J29/02;H01J29/48;H01J31/12;H01J31/50;H01J43/00;H01J43/22 |
主分类号 |
H01J1/35 |
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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