Sample cooling apparatus for X-ray diffractometer and X-ray diffractometer

摘要

The sample cooling apparatus is used in an X-ray diffractometer for rotating a sample supported by a sample rod about an ω axis, directing X-rays thereto, and detecting X-rays deflected from the sample using an X-ray detector. The apparatus has a nozzle for blowing a cooling gas on the sample; and a gas-suctioning device for suctioning, via an aperture, gas that has passed over the sample. The sample rod moves when rotated about the ω axis forming a conical surface having the sample as a vertex. The nozzle is provided so that the extension direction of the sample rod and the direction of the blown gas form an acute angle of 90° or less. The gas-suctioning device suctions the gas so the path of gas having contacted the sample rod bends when the extension direction of the sample rod and the blown direction of the gas form an acute angle.

主权项

1. A sample cooling apparatus for cooling a sample, the apparatus being used in an X-ray diffractometer for rotating, about an ω axis, a sample supported by a sample-supporting component in order to change an angle at which X-rays impinge on the sample, directing X-rays on the sample, and detecting X-rays coming away from the sample using an X-ray detector,
the sample cooling apparatus for the X-ray diffractometer comprising: cooling-gas-blowing means for blowing a cooling gas on the sample; and gas-suctioning means for suctioning, via an aperture, gas that has passed over the sample, wherein: the sample-supporting component moves when rotated about the ω axis so as to form a conical surface having the sample as a vertex; the cooling-gas-blowing means is provided so that the direction in which the sample-supporting component extends and the direction in which gas is blown by the cooling-gas-blowing means form a state of being an acute angle of equal to or less than 90°; the gas-suctioning means suctions the gas so that a path of the gas having contacted the sample-supporting component bends when the direction in which the sample-supporting component extends and the direction in which gas is blown by the cooling-gas-blowing means form the acute-angle state; and the gas-suctioning aperture of the gas-suctioning means integrally rotates about the ω axis together with the sample.