Abstract: A cathode assembly for a rotating anode X-ray source comprises two parts: a focusing part that is mechanically connected to the remainder of the X-ray source and permanently aligned with respect to the anode and a separate emission part that holds the electron source and is removably connected to the focusing part. The electron source is permanently mounted in the emission part and precisely aligned to the focusing part. The focusing part and the emission part are mechanically connected aligned relative to one another at the time of replacement. This arrangement allows the emission part, including the electron source to be quickly removed and replaced by an inexperienced user while maintaining the accuracy of the X-ray source alignment.

Abstract: A multiple wavelength X-ray source includes an electron-generating cathode and an anode with multiple target regions, each of which emits X-rays at a different characteristic wavelength in response to the electrons. The different X-ray radiation outputs are focused by different focusing sections of a focusing optic. The multiple focusing sections are in different respective locations, and each focuses its respective X-ray radiation onto a sample. The focusing sections may be side-by-side mirrors in a Kirkpatrick-Baez configuration, or in a single-bounce, doubly curved elliptical configuration.

Abstract: A multiple wavelength X-ray source includes an electron-generating cathode and an anode with multiple target regions, each of which emits X-rays at a different characteristic wavelength in response to the electrons. The different X-ray radiation outputs are focused by different focusing sections of a focusing optic. The multiple focusing sections are in different respective locations, and each focuses its respective X-ray radiation onto a sample. The focusing sections may be side-by-side mirrors in a Kirkpatrick-Baez configuration, or in a single-bounce, doubly curved elliptical configuration.

Abstract: To solve a difference in an emitting directions by switching the types of X-rays. An X-ray generator comprises: an anticathode unit 3 in which a plurality of anticathode parts 2 (2A and 2B) that emit X-rays by collision of thermoelectrons are disposed side by side; a cathode 4 for releasing the thermoelectrons toward the anticathode parts 2A and 2B on the anticathode unit 3; and a cathode moving mechanism that switches the anticathode parts, against which the thermoelectrons from the cathode 4 collide by moving the cathode 4 along the diction of aligning anticathode parts 2A and 2B.

Abstract: To solve a difference in an emitting directions by switching the types of X-rays. An X-ray generator comprises: an anticathode unit 3 in which a plurality of anticathode parts 2 (2A and 2B) that emit X-rays by collision of thermoelectrons are disposed side by side; a cathode 4 for releasing the thermoelectrons toward the anticathode parts 2A and 2B on the anticathode unit 3; and a cathode moving mechanism that switches the anticathode parts, against which the thermoelectrons from the cathode 4 collide by moving the cathode 4 along the diction of aligning anticathode parts 2A and 2B.

Abstract: A radiation-image reading apparatus especially suited for reading weak X-ray diffraction images, including a radiation-image recording member formed of a support plate in the form of a disk having a phosphor layer, a light source for generating excitation light with which the phosphor layer is irradiated, a light detecting device for detecting light emitted from the phosphor layer of the radiation-image recording member when the phosphor layer is irradiated with the excitation light, the detecting device performing the detection at a position deviated from the optical axis of the excitation light, a condenser device for condensing the excitation light emitted from the light source to a point on the phosphor layer of the radiation-image recording member while changing divergent rays of light coming from the point on the phosphor layer, to which the excitation light is condensed, into parallel rays, a driving device for moving the position of the point on the phosphor layer of condensation effected by the conde