Abstract:
An X-ray generation device which can be efficiently used is provided. The X-ray generation device 1 has an electron gun 3, a target unit T, a tubular portion 5, a reflected electron detector 31, and a coil unit 9, and the target unit T includes a plurality of targets 23, and a plurality of mark portions 27 having a predetermined location relationship with the targets 23 and each having a surface area larger than a surface area of the target 23, when viewed from a normal direction to principal faces of the target unit T.
Abstract:
PURPOSE: A flash lamp is provided to expect the decrease of an electric discharge start voltage due to a trigger wire by suppressing the insulation action between the trigger wire and an electrode caused by a reflective film to the minimum. CONSTITUTION: A flash lamp (1) includes a light emitting tube (2), a reflective film (5), and a trigger wire outside the reflective film. A pair of electrodes is installed in the light emitting tube. The reflective film is formed on the outer surface of the light emitting tube. The trigger wire is arranged along the light emitting tube. The reflective film is made of ceramic materials. An end edge of the reflective film in the longitudinal direction is placed in the front of the electrode.
Abstract:
First and second sets of thermionic cathode emitter filaments are wound into a composite cross-wound helical cathode emitter structure. The helical cathode emitting structure is supported at opposite ends by means of electrical terminals for passing electrical current through the cross-wound filaments. At one end of the composite mesh, the filaments have inwardly directed terminal portions terminating on the terminal support structure, whereby the inwardly directed terminal portions of the filaments permit a certain degree of flexibility to accommodate unequal thermal expansion of the support and mesh and whereby the cooling effect of the terminal structure is generally limited to the inwardly directed terminal portions of the filaments. The terminal structure also includes flexible support fingers to further accommodate unequal thermal expansion.
Abstract:
A split cathode and support structure for a high-power triode permit operation at increased voltages and relatively low currents. Longitudinal conductive support members maintain dimensional stability of the elements while providing a common connection to both portions of the cathode.