Abstract:
A method for fabricating an electron multiplier is provided. The method consists of depositing a random channel layer on a substrate such that the random channel layer is capable of producing a cascade secondary electron emission in response to an incident electron in the presence of an electric field.
Abstract:
A description is given of a coating solution and a method of manufacturing a magnesium-oxide layer on a glass substrate. The layer obtained is characterized by a satisfactory adhesion and a high secondary electron emission coefficient. The curing temperature can remain below 250 DEG C, so that the method is suitable for the customary types of glass.
Abstract:
An alkali metal generating agent (1) for use in forming a photoelectric surface emitting a photoelectron corresponding to an incident light or a secondary electron emission surface emitting a secondary electron corresponding to an incident electron, which comprises an oxidizing agent comprising at least one molybdate having an alkali metal ion as a counter cation and a reducing agent for reducing the above cation. The above metal generating agent (1), which includes a molybdate having weaker oxidizing power than that of a chromate, undergoes slower oxidation-reduction reaction, which results in easier reaction rate control as compared to a conventional technique using a chromate, leading to the generation of an alkali metal with good stability.
Abstract:
Manufacture of a microchannel plate may be improved using photoelectrochemical etching and thin film activation such as CVD and nitriding and oxidizing wall surface portions (28) of pores (12) formed in the substrate (10). The pore pattern may be changed by oxidizing and etching the substrate prior to activation.
Abstract:
The present invention relates to a cathodic module comprising a field emitter and a secondary electronic emitter as well as to a vacuum electronic apparatus which comprises such a module and has its anode coated with a luminophore. This invention more precisely relates to a flat device for displaying information. The cathodic module is provided with a magnetic circuit for generating a magnetic field whose induction vector is perpendicular to the flow of electrons generated by the field emitter. The secondary electronic emitter is located at a given distance from the working surface of the field emitter, wherein said distance does not exceed the deviation value of the electrons under the action of the magnetic field. In order to obtain an optimal electron deviation, the magnetic circuit may be arranged according to different configurations relative to the field emitter.