Abstract: An energy beam is irradiated onto a rotating anticathode so as to heat a portion irradiated by the energy beam under the condition that a vapor pressure at equilibrium state of the portion is set to 0.1 Torr or more, thereby generating an X-ray. The portion irradiated by the energy beam is kept at the rotating anticathode by a centrifugal force to the portion it a direction outward from a surface of the portion.

Abstract: A rotating anticathode X-ray generating apparatus includes: a rotating anticathode; an electron beam source for irradiating an electron beam onto the rotating anticathode so that an irradiating direction of the electron beams is set equal to a direction of a centrifugal force caused by a rotation of the rotating anticathode; and a material for forming a film so as to cover at least an electron beam irradiating portion of the rotating anticathode and to suppress an evaporation of a material making the rotating anticathode from the electron beam irradiating portion.

Abstract: An energy beam is irradiated onto a target from an energy beam source, thereby generating an X-ray with an irradiating area to be irradiated onto an object. Then, the X-ray is introduced into a spectrometer, thereby generating an X-ray with parallelism through the selection of wavelength and wavelength range.

Abstract: An energy beam is irradiated onto a target from an energy beam source, thereby generating an X-ray with an irradiating area to be irradiated onto an object. Then, the X-ray is introduced into a spectrometer, thereby generating an X-ray with parallelism through the selection of wavelength and wavelength range.

Abstract: Energy beams are irradiated onto a target from an energy source to melt a portion of said target to which the energy beams are irradiated so that an X-ray is generated from the target by the irradiation of the energy beam under the condition that the surface roughness of the target due to the irradiation of the energy beams is diminished.

Abstract: An electron beam with a circular cross section is flattened to form a flat electron beam with a flattened cross section. Then, the flat electron beam is irradiated onto a target, thereby generating an X-ray. Since the flat electron beam has high energy density, the X-ray can be generated in high intensity.

Abstract: An image data collecting device for analysis of material structure, including: a flexible belt which is formed in ring shape and conveyed in the long direction thereof; an accumulated fluorescent sheet which is formed in ring shape commensurate with the configuration of the flexible belt and mounted on the flexible belt and where a radiant image data from a material to be analyzed is recorded; a recording means to record the radiant image data into the accumulated fluorescent sheet by irradiating a given radiant ray onto the material; a reading means to read out the radiant image data by irradiating excitation light; and a deleting means to remove radiant energy remaining in the accumulated fluorescent sheet after reading operation by the reading means and before subsequent recording operation by the recording means.