To provide a transmission secondary electron surface capable of efficient emission of secondary electrons by an incidence of primary electrons.
The transmissive secondary electron surface comprises a secondary electron emitting layer 1 made of diamond or a material containing diamond as a main component, a supporting frame 21 which reinforces mechanical strength of the layer 1, a first electrode 31 formed on a plane of the incidence of the layer 1, and a second electrode 32 formed on the plane of the emission of the layer 1. A voltage is applied between the planes of the incidence and the emission of the secondary electron emitting layer 1 to generate an electric field in the layer. An incidence of primary electrons into the layer 1 generates secondary electrons inside the layer, and they are accelerated by the electric field in the direction of the emission and emitted out of the transmissive secondary electron surface.
UCHIYAMA SHOICHI
SUGA HIROBUMI
Next Patent: METHOD AND DEVICE FOR DRYING THICK FILM PASTE OF PLASMA DISPLAY PANEL