Patent Number: 
Section: claims

1. An X-ray analysis apparatus, comprising:a goniometer including an incident-side arm extending in a first direction, a fixing portion, and a receiving-side arm;an X-ray source, which is arranged on the incident-side arm and configured to generate an X-ray beam extending in a second direction, which crosses the first direction;a support base, which is arranged on the fixing portion, and is configured to support a sample;a parallel slit, which is arranged on the fixing portion, and is configured to limit a line width along the second direction of the X-ray beam generated by the X-ray source; anda detector, which is arranged on the receiving-side arm, and is configured to detect a scattered X-ray generated by the sample,wherein a relative positional relationship between the support base and the parallel slit is fixed. 2. The X-ray analysis apparatus according to claim 1, further comprising a moving mechanism configured to move the parallel slit in the second direction. 3. The X-ray analysis apparatus according to claim 1, wherein the parallel slit has an arc shape.