电子倍增管
电子倍增管是一个能倍增入射电荷的的真空侦测器。 一个高速的带电粒子，如电子和离子撞击侦测器表面时，可产生二次电子；再透过适当的形状与电场的安排，产生一连串的二次电子来倍增信号，最后到达阳极。通常一个电子加速撞极侦测器表面可以产生一到三个二次电子，多次撞击使得电子数目倍增，其灵敏度相当高，可以用来侦测粒子的数目。
electron multiplier
英汉-汉英词典
电子乘法器；电子倍增器
词组 | 习惯用语
您要查找的是不是：
spiratron electron multiplier 螺旋形电子倍增器
Channeltron Electron multiplier 电子倍增器
channeltron electron multipliers 通道式电子倍增器
electron multiplier tube 电子倍增管
microchannel electron multiplier 微通道电子倍增管；微通道式电子倍增器
electron multiplier gate 电子倍增器门；电子倍增器数组
electron multiplier array 电子倍增器阵列
electron multiplier 电子乘法器；[电子] 电子倍增器
secondary electron multiplier 二次电子倍增管,次级电子倍增管
channel electron multiplier 通道电子倍增器
photoelectric electron multiplier tube 光电电子倍增管
parallel plate electron multiplier 平行板电极式电子倍增管
channel type electron multiplier 槽式电子倍增器
cross-field electron beam multiplier 交叉电场电子束倍增器
中文百科
英语百科
Electron multiplier 电子倍增管
An electron multiplier is a vacuum-tube structure that multiplies incident charges. In a process called secondary emission, a single electron can, when bombarded on secondary emissive material, induce emission of roughly 1 to 3 electrons. If an electric potential is applied between this metal plate and yet another, the emitted electrons will accelerate to the next metal plate and induce secondary emission of still more electrons. This can be repeated a number of times, resulting in a large shower of electrons all collected by a metal anode, all having been triggered by just one.
近义、反义、联想词
近义词
n.tube, vacuum tube, thermionic vacuum tube, thermionic tube, electron tube, thermionic valve
英英词典
electron multiplier n.
- a vacuum tube that amplifies a flow of electrons
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