首页>
外国专利>
Microchannel electron multiplier - uses varying wall resistivity for low signal to noise ratio or low emission dispersion
Microchannel electron multiplier - uses varying wall resistivity for low signal to noise ratio or low emission dispersion
展开▼
机译:微通道电子倍增器-使用变化的壁电阻率以实现低信噪比或低发射散度
展开▼
页面导航
摘要
著录项
相似文献
摘要
This electron multiplier uses either a single microchannel or a multiple assembly. The internal walls of the channel have the property of secondary emission and their resistivity varies by a factor of 1.5 to 10 relative to the average linear resistivity along the channel. When the value is low at the input (e) then the input field will be weaker and the parasitic electron emission will also be low giving a low signal to noise ratio. When this condition is reversed at the output (s) then a low electron dispersion is obtained.
展开▼