Patent ID: 6240159
Filing Date: 2001-05-29
Classification: G01J,G01N,G21K

Abstract:
A fluorescent X-ray analyzer which comprises:a sample bench for support thereon of a sample piece;an X-ray source for radiating a primary X-ray towards the sample piece on the sample bench;a monochromator for monochromatizing a secondary X-ray emitted from the sample piece;a first detector for measuring an intensity of at least a portion of the secondary X-ray monochromatized by the monochromator while allowing the remaining portion of the secondary X-ray to pass therethrough;a light receiving slit member operable to pass therethrough the secondary X-ray which has been monochromatized by the monochromator;a second detector for measuring an intensity of the secondary X-ray which has been passed through the first detector or the light receiving slit member;a first spindle having a longitudinal axis and carrying the monochromator with the longitudinal axis thereof passing in touch with a light receiving surface of the monochromator;a first drive mechanism for driving the first spindle;a second spindle having a longitudinal axis coaxial and common with the longitudinal axis of the first spindle and carrying the first detector and the light receiving slit member in a side-by-side fashion;a second drive mechanism for driving the second spindle;a third spindle having a longitudinal axis coaxial and common with the longitudinal axis of the first spindle and carrying the second detector;a third drive mechanism for driving the third spindle; anda control means for controlling the first and second drive mechanisms to vary a wavelength of the secondary X-ray incident upon the first detector or the light receiving slit member and for controlling the third drive mechanism to cause the secondary X-ray, having passed through the first detector or the light receiving member, to impinge upon the second detector.