A radiation integration device

Abstract

The present invention discloses a ray integration device. The ray integration device is located on the exit optical path of X-rays and is used to integrate the X-rays emitted by the X-ray source; the ray integration device includes: N X-ray focusing mirrors arranged in sequence along the exit optical path of the X-ray source, N collimating lenses respectively located at the focusing focal positions of the N X-ray focusing mirrors, and a collimator located on the exit optical path of the collimating lens at the end; N is a positive integer; the N X-ray focusing mirrors, the N collimating lenses and the collimator are coaxially arranged; the N X-ray focusing mirrors and the N collimating lenses are arranged at intervals from each other; each X-ray focusing mirror is used to focus the X-rays; each collimating lens is used to convert the focused X-rays into parallel light; the collimator is used to collimate the X-rays. The ray integration device of the present invention can meet the requirement of a thinner X-ray beam size.

Description

Technical Field

[0001] The invention relates to the field of X-ray diffraction analysis, and in particular to a ray integration device. Background Art

[0002] Laboratory and factory-level X-ray diffraction analysis occasionally has special requirements for the size of the X-ray beam. However, the X-ray beam emitted by the X-ray source is usually thick and cannot meet the requirements of a thin beam. Summary of the invention

[0003] The object of the present invention is to provide a ray integration device that meets the requirement of a thinner X-ray beam size.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] A ray integration device is located on an exit optical path of X-rays and is used to integrate X-rays emitted by an X-ray source; the ray integration device comprises: N X-ray focusing mirrors arranged in sequence along the exit optical path of the X-ray source, N collimating lenses respectively located at the focusing focal positions of the N X-ray focusing mirrors, and a collimator located on the exit optical path of the collimating lens at the end; N is a positive integer;

[0006] The N X-ray focusing mirrors, the N collimating lenses and the collimator are coaxially arranged; the N X-ray focusing mirrors and the N collimating lenses are spaced apart from each other;

[0007] Each of the X-ray focusing mirrors is used to focus the X-rays; each of the collimating lenses is used to convert the focused X-rays into parallel light; and the collimator is used to collimate the X-rays.

[0008] Optionally, the collimator, the N X-ray focusing mirrors and the N collimating lenses are all placed in a radiation shield.

[0009] Optionally, an air conditioning device is provided in the radiation shield; the air conditioning device is used to adjust the air temperature in the radiation shield.

[0010] Optionally, the N X-ray focusing mirrors are all Montel-type multilayer film focusing mirrors.

[0011] Optionally, the collimating lens is an X-ray capillary optical lens.

[0012] Optionally, a light hole is provided on the side wall of the radiation shield at a position where the optical axis passes through, and the light hole is used to pass the X-ray beam.

[0013] Optionally, the radiation shield is made of lead plate.

[0014] Optionally, the collimator is a mechanical collimator.

[0015] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects: the ray integration device disclosed in the present invention continuously focuses and collimates the X-rays emitted by the X-ray source, thereby reducing the size of the X-ray beam and meeting the requirement of a thinner X-ray beam size. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A structural diagram of a radiation integration device according to an embodiment of the present invention;

[0018] Figure 2 Schematic diagram of the X-ray capillary optical lens. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 FIG. 4 is a structural diagram of a radiation integration device according to an embodiment of the present invention.

[0022] See also Figure 1 The ray integration device is located on the X-ray emission path and is used to integrate the X-rays emitted by the X-ray source. The ray integration device of the present invention can integrate a millimeter-level X-ray beam into a micrometer-level X-ray focal spot.

[0023] The ray integration device comprises: N X-ray focusing mirrors 1 arranged in sequence along the outgoing light path of the X-ray source, N collimating lenses 2 respectively located at the focusing focal positions of the N X-ray focusing mirrors 1, and a collimator 3 located on the outgoing light path of the collimating lens 2 at the end; N is a positive integer.

[0024] The N X-ray focusing mirrors 1, the N collimating lenses 2 and the collimator 3 are coaxially arranged; the N X-ray focusing mirrors 1 and the N collimating lenses 2 are spaced apart from each other.

[0025] Each of the X-ray focusing lenses 1 is used to focus X-rays; each of the collimating lenses 2 is used to convert the focused X-rays into parallel light; and the collimator 3 is used to collimate the X-rays.

[0026] The collimator 3 , the N X-ray focusing mirrors 1 and the N collimating lenses 2 are all placed in a radiation shield 4 .

[0027] An air conditioning device 5 is provided in the radiation shield 4 ; the air conditioning device 5 is used to adjust the air temperature in the radiation shield 4 .

[0028] The N X-ray focusing mirrors 1 are all Montel-type multilayer focusing mirrors, which can integrate an incident X-ray beam into a focal spot that is ten times thinner than the incident X-ray beam.

[0029] Montel multilayer film focusing mirror is an X-ray optical device based on thin film technology produced by German Incoetec. Montel multilayer film focusing mirror is a coating with a multilayer film structure deposited on a high-quality optical surface lens substrate through coating technology. Based on Bragg's law, X-rays passing through Montel multilayer film focusing mirror are collected within a certain solid angle range. The incident light beam changes with the position on the lens, so the incident angle is different, and the corresponding lens thickness is different. Montel multilayer film focusing mirror adopts two multilayer film lenses arranged side by side (side-by-side) in an L-shaped distribution. Two elliptical lenses form an L-shaped distribution to achieve optical focusing.

[0030] The collimating lens 2 is an X-ray capillary optical lens.

[0031] Figure 2 Schematic diagram of the X-ray capillary optical lens.

[0032] See also Figure 2 The working principle of the X-ray capillary optical lens is based on the principle of total reflection of X-rays. The focal spot is collimated by the X-ray capillary optical lens to form a bright parallel X-ray beam. Although the X-ray capillary optical lens needs to increase the diameter of the beam to adjust the parallelism, the degree of increase is much smaller than the focusing degree of the Montel multilayer film focusing lens, so it can be ignored.

[0033] Each X-ray focusing mirror 1 realizes one-stage focusing. The size of the collimating lens 2 behind each stage of the X-ray focusing mirror 1 is selected according to the size of the light spot after focusing and the divergence angle. Each stage of the X-ray focusing mirror 1 is selected according to the coarseness of the incident light and the focusing multiple requirements.

[0034] A light hole is provided at the position where the optical axis passes through the side wall of the radiation shield 4, and the light hole is used to pass the X-ray beam. The light hole in the incident direction of the first-stage X-ray focusing mirror 1 is used to pass the light beam emitted by the X-ray source. The light hole in the exit direction of the collimator 3 is used to pass the integrated light beam. Therefore, the size of the light hole in the incident direction of the first-stage X-ray focusing mirror 1 is much larger than the light hole in the exit direction of the collimator 3.

[0035] The radiation shield 4 is made of lead plate and has a protective function, and is used to isolate X-rays and prevent X-rays from being emitted.

[0036] The collimator 3 is a mechanical collimator.

[0037] The working principle of the radiation integration device of the present invention is as follows:

[0038] The light beam emitted by the X-ray source enters the first-stage X-ray focusing mirror after passing through the light hole in the incident direction of the first-stage X-ray focusing mirror. After being focused by the first-stage X-ray focusing mirror, the light beam becomes a light spot and converges at the focus of the first-stage X-ray focusing mirror. The collimating lens located at the focus of the first-stage X-ray focusing mirror converts the light spot at the focus into parallel light and injects it into the first-stage X-ray focusing mirror. The collimating lens located at the focus of the second-stage X-ray focusing mirror converts the light spot at the focus into parallel light and injects it into the third-stage X-ray focusing mirror... until the collimating lens located at the focus of the N-stage X-ray focusing mirror converts the light spot at the focus into parallel light and injects it into the collimator. The collimator further collimates the parallel light and injects it to obtain an integrated light beam.

[0039] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects: the ray integration device disclosed by the present invention continuously focuses and collimates the X-rays emitted by the X-ray source, thereby reducing the size of the X-ray beam and meeting the requirement of a thin X-ray beam size. At the same time, the focused light spot is adjusted into parallel light by using the total reflection principle, which greatly reduces the attenuation of the beam energy.

[0040] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A radiation integration device, characterized in that: Located on the X-ray emission optical path, it is used to integrate the X-rays emitted by the X-ray source; The ray integration device comprises: N X-ray focusing mirrors arranged in sequence along the outgoing light path of the X-ray source, N collimating lenses respectively located at the focusing focal positions of the N X-ray focusing mirrors, and a collimator located on the outgoing light path of the collimating lens at the end; N is a positive integer; The N X-ray focusing mirrors, the N collimating lenses and the collimator are coaxially arranged; the N X-ray focusing mirrors and the N collimating lenses are spaced apart from each other; Each of the X-ray focusing lenses is used to focus the X-rays; each of the collimating lenses is used to convert the focused X-rays into parallel light; and the collimator is used to collimate the X-rays; Among them, the N X-ray focusing lenses are all Montel-type multilayer film focusing lenses; the collimating lens is an X-ray capillary optical lens; Each X-ray focusing mirror achieves one-stage focusing; the size of the collimating lens behind each stage of the X-ray focusing mirror is selected according to the size of the light spot after focusing and the divergence angle; each stage of the X-ray focusing mirror is selected according to the coarseness of the incident light and the focusing multiple requirements; The light beam emitted by the X-ray source enters the first-stage X-ray focusing mirror after passing through the light hole in the incident direction of the first-stage X-ray focusing mirror. After being focused by the first-stage X-ray focusing mirror, the light beam becomes a light spot and converges at the focus of the first-stage X-ray focusing mirror. The collimating lens located at the focus of the first-stage X-ray focusing mirror converts the light spot at the focus into parallel light and injects it into the second-stage X-ray focusing mirror. The collimating lens located at the focus of the second-stage X-ray focusing mirror converts the light spot at the focus into parallel light and injects it into the third-stage X-ray focusing mirror, until the collimating lens located at the focus of the N-stage X-ray focusing mirror converts the light spot at the focus into parallel light and injects it into the collimator. The collimator further collimates the parallel light and injects it to obtain an integrated light beam.

2. The radiation integration device according to claim 1, characterized in that: The collimator, the N X-ray focusing mirrors and the N collimating lenses are all placed in a radiation shield.

3. The radiation integration device according to claim 2, characterized in that: An air conditioning device is arranged in the radiation shield; the air conditioning device is used to adjust the air temperature in the radiation shield.

4. The radiation integration device according to claim 2, characterized in that: A light hole is provided on the side wall of the radiation shield at a position where the optical axis passes through, and the light hole is used for passing the X-ray beam.

5. The radiation integration device according to claim 2, characterized in that: The radiation shield is made of lead plates.

6. The radiation integration device according to claim 1, characterized in that: The collimator is a mechanical collimator.

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