Abstract:
An energy ray generating device (1a) comprises an electron gun (2), a vacuum vessel (3), and an outgoing window forming part (10a or 10b). The electron gun (2) comprises a resin member (4), a case (5), a connector (6), a filament (7), and internal wires (9a, 9b). The case (5) comprises inner surfaces (5a, 5b) facing each other in the Z-axis direction and inner surfaces (5c, 5d) facing each other in the X-axis direction and an opening (5g) passing from the inner surface (5a) to the outer surface. The resin member (4) is disposed in contact with the inner surfaces (5a, 5c) of the case (5) and apart from the other inner surfaces (5b, 5d to 5f). The resin member (4) comprises a projecting part (4b) projecting from the opening (5g). The filament (7) is fitted to the end of the projecting part (4b). The connector (6) is disposed on the inner surface (5c). Consequently, the effect of the expansion of the resin member (4) due to heating with a high voltage can be effectively suppressed.
Abstract:
A soft ionization device is disclosed that comprises a series of electrodes (120, 122) having spacing less than the means free path of the molecules to be ionized. In some embodiments, the soft ionization device (99) is used in various applications that require ion or electron sources such as biological or chemical reactors, ion milling, and numerous replacements for conventional hot cathode systems. In another embodiment, a valence spectrometer is disclosed that is configured to variably ionize molecules (301) by their valiancy. In other embodiments, the ionization device is coupled to a spectrometer for the characterization of biological matter. Also disclosed is a preconditioner for preparing biological matter to be ionized.
Abstract:
The present invention relates to a grid electron tube whose cathode is comprised of an emissive part (12) which delimits a substantially central recess (11). Said cathode reduces considerably the emission of spurious electrons of the grid by contributing to its cooling. Application particularly to electronic tubes known as IOT.
Abstract:
개시된 일 실시예는 전자 빔(electron beam)을 생성하기 위한 전자 소스( electron source)에 관한 것이다. 전자 소스는 전자 빔이 추출되는 팁(tip)을 갖는 전자 이미터(electron emitter)를 포함한다. 전자 소스는 추출기 개구(extractor opening) 및 빌트인 빔 제한 애퍼처(built-in beam-limiting aperture)를 갖는 비평면 추출기(non-planar extractor)를 더 포함한다. 추출기 개구는 빔 제한 애퍼처보다 크고, 추출기 개구와 빔 제한 애퍼처 모두의 중심축들이 빔축을 따라 팁과 정렬된다. 다른 실시예는 비평면 추출기를 갖는 전자 소스을 사용하여 전자 빔을 생성하는 방법에 관한 것이다. 또 다른 실시예는 전자 빔들의 어레이를 생성하기 위한 전자 소스들의 어레이에 관한 것이다. 전자 소스들의 어레이는 전자 이미터들의 어레이와 비평면 추출기 구조물의 어레이를 포함한다. 다른 실시예들, 실시예들 및 기능들도 개시한다.
Abstract:
Eine Elektronenkanone zur Erzeugung eines Elektronen-Flachstrahls umfasst eine Kathode mit einer Emissionsfläche, die um eine Zentralachse gekrümmt ist und dazu ausgebildet ist, Elektronen zu emittieren. Die Elektronenkanone umfasst weiterhin eine Beschleunigungsvorrichtung zur Beschleunigung der Elektronen in einer radialen Richtung hin zu einem Zielbereich an der Zentralachse. Außerdem weist die Emissionsfläche in azimutaler Richtung eine Breite und eine senkrecht zur Breite orientierte Höhe auf, wobei die Breite mindestens zehnmal so groß ist wie die Höhe.
Abstract:
In one embodiment, the trajectory of one or more electrons is controlled in a field emission device. In another embodiment, the field emission device is configured analogously to a klystron. In another embodiment, the field emission device is configured with electrical circuitry selected to control the input and output of the device.
Abstract:
The present invention relates to an electron beam device having a body provided with an exit window, said body is forming or is at least partly forming a vacuum chamber, said vacuum chamber comprising therein a cathode housing (112) and at least one electron generating filament (120). At least one getter sheet (124) is provided between the cathode housing (112) and the filament (120). The invention is further comprising a getter sheet (124) for use in an electron beam device and a method of manufacturing an electron beam device comprising at least one getter sheet.
Abstract:
The invention relates to a control grid (1 12) for an electron beam generating device, said control grid comprising apertures (122) arranged in rows (R) in a width direction and columns (C) in a height direction, wherein a majority of the apertures (122) in a row have the same size, and wherein the size of the apertures of at least one row differs from the size of the apertures of another row.