Abstract:
The present invention is characterized in that an electron emission film (36) formed on the inner wall surface of a channel (32) in a base body (31) and an ion barrier film (37) covering the opening on the side of the front surface (4a) of the base body in the channel are integrally formed in the same film-forming process in a micro-channel plate (4) for an image intensifier. Thereby, the electron emission film and the ion barrier film are continuously formed as a strong film so that the ion barrier film can be formed as a thin film. Further, the residue of an organic film that is formed in the manufacturing process is suppressed, and therefore it is possible to control a reduction in performance of the ion barrier film due to the residual organic film. Thus, the ion feedback from a micro-channel plate is minimized and the operating life of an image intensifier can be sufficiently improved.
Abstract:
A transmission mode photocathode 2 comprises: an optically transparent substrate 4 having an outside face 4a to which light is incident, and an inside face 4b from which the light incident to the outside face 4a side is output; a photoelectric conversion layer 5 disposed on the inside face 4b side of the optically transparent substrate 4 and configured to convert the light output from the inside face 4b into a photoelectron or photoelectrons; and an optically-transparent electroconductive layer 6 comprising graphene, and disposed between the optically transparent substrate 4 and the photoelectric conversion layer 5.
Abstract:
PROBLEM TO BE SOLVED: To provide a photocathode which can make various characteristics improved. SOLUTION: In the photocathode 10, an intermediate layer 14, an underlying layer 16, and a photoelectron emitting layer 18 are formed in this order on a substrate 12. The photoelectron emitting layer 18 contains Sb and Bi, and is equipped with a function of emitting photoelectrons outside by incident light. In the photoelectron emitting layer 18, Bi of 32 mol% or less relative to Sb and Bi is contained. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a michrochannel plate capable of enhancing the life characteristics by suppressing ion feedback, and to provide a method of manufacturing michrochannel plate, and an image intensifier.SOLUTION: A michrochannel plate 4 becomes a thin and strong film because an electron emission film 36 and an ion barrier film 37 are formed integrally on a substrate 31 by the same deposition step. Furthermore, ion feedback is suppressed by removing an organic film on the ion barrier film 37 until the ion barrier film 37 is exposed.
Abstract:
PROBLEM TO BE SOLVED: To provide an electron tube capable of stably securing voltage-withstanding characteristics.SOLUTION: In an electron tube 1, by using an atomic layer deposition method, an electric resistance film 31 having a lamination structure of an electric insulation layer and a conductive layer or a mixed structure of an electrical insulation material and a conductive material is formed so as to cover a whole of an inner wall surface and an outer wall surface of a second envelope 12. By using the atom deposition method, the firm and dense electric resistance film 31 having a desired resistance value can be formed at an insulation surface without using a material such as a binding agent. By allowing the electric resistance film 31 to have slight conductivity, occurrence of withstanding voltage failure caused by charging of the insulation surface and such can be suppressed and stabilization of voltage-withstanding characteristics can be achieved.
Abstract:
PROBLEM TO BE SOLVED: To provide a photoelectric face having high characteristics, a photoelectron multiplier provided with it, an X-ray generator, an ultraviolet ray image tube, and an X-ray image intensifier. SOLUTION: This photo electric face is that in which a mixed crystal layer of magnesium oxide and zinc oxide expressed by a composition formula Mg x Zn (1-x) O (0 COPYRIGHT: (C)2007,JPO&INPIT