The secondary backscattered electron current is used to modulate the intensity of an electron beam in a cathode ray tube(crt) . 二次电子或背散射电子的电流被用来调制阴极射线管(CRT)中电子束的强度。
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Backscattered electron image 反散射电子图象
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The secondary backscattered electron current is used to modulate the intensity of an electron beam in a cathode ray tube ( crt ) 二次电子或背散射电子的电流被用来调制阴极射线管( crt )中电子束的强度。