摘要 |
PROBLEM TO BE SOLVED: To provide a superconducting magnet unit for an X-ray diffraction having a small X-ray transmission attenuation rate. SOLUTION: The superconducting magnet unit for the X-ray diffraction comprises superconducting magnets 5a, 5b disposed at upper and lower stages in a vacuum heat insulation container 3, an X-ray incident passage S1, and an X-ray diffraction passage formed between the magnets of the upper and lower stages. The superconducting magnet unit further comprises an inner cylinder 3a formed toward a center of the magnets along a centerline of the container 3 to form an inside wall of the container 3 to dispose a sample for an X-ray diffraction disposed at a center of the upper and lower magnets from out of the container 3, a pair of sector spaces as the X-ray incident passage S1 and the X-ray diffraction passage spreading toward a peripheral wall 3b of the container 3 from the cylinder 3a, and a cover member 15 fixed airtightly to the container 3 and having X-ray passage windows 15b at outside surfaces of the sector spaces. |