Grazing incidence XAFS (x-ray absorption fine structure) high-temperature in-situ furnace

Abstract

The invention relates to a grazing incidence XAFS (x-ray absorption fine structure) high-temperature in-situ furnace. The furnace comprises a central longitudinal axis as well as a furnace body, a furnace cover and a furnace base which are arranged around the central longitudinal axis, wherein the furnace body is supported by the furnace base, the furnace cover is arranged above the furnace body and fixedly connected with the furnace body, the furnace body comprises a main body and a furnace chamber defined by the main body, a first window for X-ray incidence, a second window for X-ray emergence and a third window for fluorescence detection are arranged on the main body, the central axes of the first window and the second window are located in a straight line perpendicular to the central longitudinal axis, the central axis of the third window is perpendicular to a plane defined by the central longitudinal axis and the straight line, a fourth window for fluorescence detection is arranged on the furnace cover, the central axis of the fourth window overlaps with the central longitudinal axis, a sample table is arranged in the furnace chamber, and the included angle formed by the top surface of the sample table and the straight line is 0-5 degrees. The grazing incidence XAFS high-temperature in-situ furnace can perform XAFS tests on solid-liquid interfaces.

Description

technical field [0001] The invention relates to a high-temperature in-situ furnace, in particular to a grazing-incidence XAFS high-temperature in-situ furnace. Background technique [0002] High-temperature in-situ furnaces are often used for in-situ X-ray absorption fine structure (XAFS) testing to obtain local structural information such as chemical valence states of sample elements. The sample in the high-temperature in-situ furnace in the prior art is placed vertically, and the angle between the incident X-ray and the sample is usually 45° or 90°, which can be tested by fluorescence method or transmission method. The divergence of synchrotron radiation in the horizontal direction is larger than that in the vertical direction. It is difficult to ensure that all X-ray projections are within the sample under the condition of grazing incidence when the sample is placed vertically, so that the grazing incidence XAFS test cannot be realized. Since the angle between the X-ray ...

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Problems solved by technology

[0004] In order to solve the problem that the existing high-temperature in-situ furnace in the above-mentioned prior art cannot perform XAFS testing on the solid-liquid interface, the present invention aims to provide a grazing incidence XAFS high-temperature in-situ furnace

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