System for prolonging service life of hard X-ray beryllium window

Abstract

The utility model discloses a system for prolonging the service life of a hard X-ray beryllium window, which is characterized by comprising a heating device and a two-dimensional moving device, the heating device is used for being connected with a beryllium window flange of a beryllium window, and the beryllium window flange is heated, so that water vapor in air is prevented from being attached to the surface of the beryllium window. The two-dimensional moving device is used for being connected with a vacuum pipeline where the beryllium window flange is located, the beryllium window flange is driven to move by moving the vacuum pipeline on a two-dimensional plane, and the incidence position of X rays on the beryllium window is adjusted. According to the utility model, the heating tape is wound outside the beryllium window flange, so that the adhesion of water vapor in the air on the beryllium window flange can be effectively slowed down, and the corrosion to oxygen-free copper / beryllium materials on the flange is reduced; a moving table in the XZ two-dimensional direction is installed at the bottom of the beryllium window flange, the flange is moved regularly to prevent one point of the beryllium piece from being irradiated by hard X-rays for a long time, and the service life of the beryllium piece can be effectively prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of synchrotron radiation X-ray optics, and relates to a system for extending the service life of a hard X-ray beryllium window, which can extend the service life of a beryllium window placed at a beam line terminal to isolate vacuum and atmosphere. Background Art

[0002] Beryllium metal (Be) possesses remarkable properties, earning it the nickname "metallic glass," due to its low absorption of X-rays. Beryllium is highly penetrating and nearly transparent to X-rays, making it an ideal material for X-ray output windows. Beryllium windows are fabricated by welding thin sheets of beryllium to oxygen-free copper and attaching them to flanges. The scarcity of the material and the complex manufacturing process make them very expensive. However, beryllium windows are essential components of synchrotron X-ray beamlines, serving primarily to seal vacuum tubes and isolate the beamline vacuum from the atmospheric environment.

[0003] At present, the beryllium windows that isolate the vacuum and atmosphere at the beam line terminals of synchrotron radiation sources at home and abroad are mostly fixed and exposed to the atmospheric atmosphere. They are easily corroded by external moist air, causing cracks at the welding points between the beryllium plates and oxygen-free copper. The beryllium plates are easily burned into small holes and leaked under long-term irradiation of hard X-rays.

[0004] Since the existing beryllium window flange used to isolate the vacuum from the atmosphere at the beamline terminal is mainly exposed to the air environment and is fixed, the beryllium window flange is exposed to the atmospheric environment for a long time, causing the oxygen-free copper and beryllium sheets on the flange to be easily corroded and rusted by water vapor in the air, and the welds to crack easily; the fixed beryllium window flange causes a certain position of the thin beryllium sheet to be penetrated by hard X-rays for a long time, which easily creates small holes in the beryllium sheet and causes vacuum leakage. Utility Model Content

[0005] To address the problems existing in the prior art, the present invention aims to provide a system for extending the service life of hard X-ray beryllium windows. By wrapping a heating tape around the exterior of the beryllium window flange, the system effectively slows the adhesion of moisture in the air to the flange, reducing corrosion of the flange's oxygen-free copper / beryllium material. Furthermore, by installing a two-dimensional moving platform at the bottom of the beryllium window flange, the system periodically moves the flange to prevent prolonged exposure of a single portion of the beryllium blade to hard X-rays, effectively extending the blade's service life.

[0006] The technical solution of the utility model is:

[0007] A system for extending the service life of a hard X-ray beryllium window, characterized by comprising a heating device and a two-dimensional moving device;

[0008] The heating device is used to be connected to the beryllium window flange of the beryllium window, and reduces the adhesion of water vapor in the air to the surface of the beryllium window by heating the beryllium window flange;

[0009] The two-dimensional moving device is used to connect to the vacuum pipe where the beryllium window flange is located, and to adjust the incident position of the X-ray on the beryllium window by moving the vacuum pipe on the two-dimensional plane to drive the beryllium window flange to move.

[0010] Furthermore, the heating device is a heating belt, and the heating belt is wrapped around the outside of the beryllium window flange.

[0011] Furthermore, the heating temperature of the heating belt is set to 50-60° C., so as to reduce the adhesion of water vapor in the air to the surface of the beryllium sheet and the oxygen-free copper surface of the beryllium window.

[0012] Furthermore, the two-dimensional moving device is an XZ axis translation stage perpendicular to the incident direction of the hard X-rays.

[0013] Furthermore, the XZ-axis translation stage is located on the vacuum pipe near the beryllium window flange.

[0014] The advantages of this utility model are as follows:

[0015] 1. By wrapping a layer of heating tape around the beryllium window flange and setting the temperature in the range of 50-60℃, a relatively dry environment is created around the beryllium window, reducing the adhesion of water vapor on the beryllium window surface, preventing surface corrosion, and effectively preventing the cracking and leakage of the welding point between oxygen-free copper and beryllium sheet.

[0016] 2. The installation and small-range movement of the XZ translation stage prevents a local point of the beryllium window from being penetrated by synchrotron radiation hard X-rays for a long time, thereby reducing the probability of air leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a system structure diagram of the present utility model.

[0018] Reference numerals: 1-beryllium sheet, 2-beryllium window flange, 3-heating belt, 4-XZ axis translation stage, 5-vacuum pipe, 6-hard X-ray. DETAILED DESCRIPTION

[0019] The present invention will be described in further detail below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0020] The utility model prolongs the service life of the hard X-ray beryllium window. Figure 1As shown, the system primarily focuses on isolating a beryllium window flange at the beamline terminal from the atmosphere, extending its service life. The system consists of two main components. The first is a heating device, which installs a heating belt 3 on the beryllium window flange 2. The heating belt 3 is set to a temperature between 50°C and 60°C. Testing has shown that the temperature of the beryllium plate 1 in the center of the flange is around 30°C to 35°C, and the temperature of the oxygen-free copper is around 40°C. This reduces the adhesion of airborne moisture to the beryllium window surface, creates a relatively dry environment around the beryllium window, and effectively prevents corrosion of the beryllium window materials (such as the oxygen-free copper and the beryllium plate). The second component is a two-dimensional movement device. An XZ-axis translation stage 4 is installed below the vacuum pipe 5 at the beryllium window flange. This stage periodically moves the flange within a small range to prevent prolonged penetration of synchrotron hard X-rays 6 into a localized area of ​​the beryllium plate 1, reducing the likelihood of small holes being burned into the beryllium window and extending its service life.

[0021] While specific embodiments of the present invention are disclosed for illustrative purposes, their purpose is to facilitate understanding and implementation of the present invention. Those skilled in the art will appreciate that various substitutions, variations, and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the present invention should not be limited to the disclosed preferred embodiments; the scope of protection claimed by the present invention shall be determined by the scope of the claims.

Claims

1. A system for extending the service life of a hard X-ray beryllium window, characterized in that: It includes a heating device and a two-dimensional moving device; The heating device is used to be connected to the beryllium window flange of the beryllium window, and reduces the adhesion of water vapor in the air to the surface of the beryllium window by heating the beryllium window flange; The two-dimensional moving device is used to connect to the vacuum pipe where the beryllium window flange is located, and to adjust the incident position of the X-ray on the beryllium window by moving the vacuum pipe on the two-dimensional plane to drive the beryllium window flange to move.

2. The system for extending the service life of a hard X-ray beryllium window according to claim 1, characterized in that: The heating device is a heating belt, and the heating belt is wound around the outside of the beryllium window flange.

3. The system for extending the service life of a hard X-ray beryllium window according to claim 2, characterized in that: The heating temperature of the heating belt is set to 50-60° C., so as to reduce the adhesion of water vapor in the air to the surface of the beryllium sheet and the oxygen-free copper surface of the beryllium window.

4. The system for extending the service life of a hard X-ray beryllium window according to claim 1, 2 or 3, characterized in that: The two-dimensional moving device is an XZ axis translation stage perpendicular to the incident direction of the hard X-rays.

5. The system for extending the service life of a hard X-ray beryllium window according to claim 4, characterized in that: The XZ axis translation stage is located at a position of the vacuum pipe close to the beryllium window flange.

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