Center light beam blocking device
By designing a central beam blocking device including a blocking block, a mela film and a fixed plate, the data loss and low efficiency caused by the distance from the detector are solved, and better detector protection and data quality improvement are achieved.
Patent Information
- Application Number
- CN202422129580.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-31
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-31
AI Technical Summary
The existing central beam blocker is far away from the detector, resulting in some X-ray beam not being effectively blocked, affecting data quality and system efficiency.
A central beam blocking device including a blocking block, a mela film, a mela film fixing plate, a mela film cover plate and a fixed bottom plate is designed. The position is adjusted by magnetic metal blocks to ensure that the optical path remains unchanged and maintain airtightness. The mela film fixing plate is threaded to connect with the fixed bottom plate to block the central beam.
Effectively protect the detector, improve data quality, reduce data losses, enhance signal monitoring capabilities, and improve the overall efficiency of the system.
Smart Images
Figure CN223091867U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of optical devices, and particularly to a central beam blocking device. Background Art
[0002] In X-ray microscope experiments, it is better to set the beamstop as close to the detector as possible, mainly for the following reasons: Protect the detector: The direct X-ray beam may damage the detector. By placing the beamstop close to the detector, these direct X-ray beams can be effectively blocked, thus protecting the detector from long-term direct exposure. Improve data quality: Using a beamstop close to the detector can reduce the influence of scattered light and non-target reflections, thereby improving the resolution and accuracy of diffraction pattern points. This can ensure that the collected data is more accurate and reliable. Reduce data loss: If the distance between the beamstop and the detector is too far, some X-ray beams may not be effectively blocked and directly reach the detector, resulting in a large amount of useful data loss.
[0003] Therefore, placing the beamstop close to the detector can maximize the utilization of the incident beam and reduce data loss. Improve system efficiency: In some cases, such as high-throughput or high-resolution experiments, setting the beamstop closer helps improve the overall efficiency and performance of the system. For example, in some applications of dynamic measurement and real-time monitoring, a beamstop close to the detector can respond to changes faster and make necessary adjustments. Summary of the Utility Model
[0004] Most current central beam blockers are located in front of the detector and are at a certain distance from the detector. When the ray beam irradiates the sample and is focused on the detector through a lens, the central beam with a higher blocking intensity is blocked. However, since the central beam is blocked in front of the detector, the beam overflowing from the central beam may still interfere with imaging and have a certain impact on the detector. The present application proposes a central beam blocking device, and its technical features are as follows:
[0005] A central beam blocking device includes a blocking block, a mylar film, a mylar film fixing plate, a mylar film cover plate, and a fixed bottom plate; the blocking block is two magnetic metal blocks, magnetically fixed on both sides of the mylar film, and the position can be adjusted through the blocking block on the outer side of the mylar film. The mylar film can ensure that the optical path does not change when the light enters and ensure the airtightness of the distance between the mylar film and the detector surface. The mylar film cover plate is in a circular structure and covers the mylar film after the mylar film is placed on the fixed bottom plate. The mylar film fixing plate is fixedly connected to the fixed bottom plate by threads; after the optical path is adjusted and calibrated, the coordinate of the incident light path is determined, and the blocking block is adjusted to the corresponding coordinate to block the central beam.
[0006] In an embodiment of the present application, the fixed bottom plate is in a double-square shape to allow the beam to pass through. There are hole positions on the fixed bottom plate that are threadedly fixed to the detector, hole positions that are threadedly connected to the mylar film fixing plate, and some hole positions into which positioning cylinders are inserted to facilitate fixing the position of the mylar film cover plate.
[0007] In an embodiment of the present application, the mylar film cover plate is made of rubber or other sealing materials with the same properties. There is an arc-shaped notch on the mylar film cover plate, and the position of the notch corresponds to the threaded hole position on the fixed bottom plate for connecting the mylar film fixing plate, so that the mylar film fixing plate does not contact the mylar film cover plate when threadedly connected to the fixed bottom plate. There is a through hole on the mylar film cover plate for the positioning cylinder to pass through.
[0008] In an embodiment of the present application, there are through holes on the mylar film fixing plate that are threadedly connected to the fixed bottom plate, and hole positions for inserting the positioning cylinders. In this embodiment, there is a notch at the lower right corner of the detector, and the overall shape is roughly an inverted L shape. Part of the area of the mylar film fixing plate extends inward to cover the mylar film light-transmitting area, and the size of the extended area is determined according to the size of the detector notch.
[0009] In an embodiment of the present application, the blocking block is a magnetic metal block. A magnetic metal block on the side where the mylar film fixing plate is installed can be pasted with other metal blocks made of materials such as heavy metals like tungsten to achieve different blocking capabilities.
[0010] The advantages of the present utility model are as follows:
[0011] The central beam blocking device proposed by the present utility model can better protect the detector, improve data quality and enhance signal monitoring capabilities. At the same time, it can also effectively reduce data loss and improve the overall efficiency of the system. Description of the Drawings
[0012] Figure 1 It is an axonometric view of the central beam blocking device installed on the detector.
[0013] Figure 2 It is an axonometric view of the central beam blocking device with the mylar film fixing plate hidden.
[0014] In the figure: 1 - blocking block, 2 - mylar film fixing plate, 3 - mylar film cover plate, 4 - mylar film, 5 - fixed bottom plate, 6 - detector. Detailed Embodiments
[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0016] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0017] Figure 1 、 Figure 2 A central beam blocking device as shown, wherein the blocking block 1 is two magnetic metal blocks, magnetically fixed on the inner and outer sides of the mylar film 4, and the position can be adjusted through the blocking block 1 on the outer side of the mylar film 4. The mylar film 4 can ensure that the light path does not change when the light beam enters and ensure the airtightness of the distance between the mylar film 4 and the surface of the detector 6. The mylar film cover plate 3 is in a loop structure and covers the mylar film 4 after the mylar film 4 is placed on the fixed bottom plate 5. The mylar film cover plate 3 is positioned and installed through a positioning cylinder. The mylar film fixing plate 2 is fixedly connected to the fixed bottom plate 5 by threads; the blocking block 1 is a magnetic metal block, and other metal blocks such as heavy metals such as tungsten can be pasted on the magnetic metal block on the side where the mylar film fixing plate 2 is installed to achieve different blocking capabilities; through holes for threaded connection with the fixed bottom plate 5 are drilled on the mylar film fixing plate 2, and holes for inserting the positioning cylinder are drilled. In this embodiment, there is a notch at the lower right corner of the detector 6, and the overall shape is roughly an inverted L shape. A part of the mylar film fixing plate 2 extends inwards to cover the light-transmitting area of the mylar film 4, and the size of the extending area is determined according to the size of the notch of the detector 6. The mylar film 4 is a film with high light beam transmittance and does not affect the light beam, and other films with the same properties can replace the mylar film 4.
[0018] Generally, the position of the laboratory light path is fixed. During use, after the light path is adjusted and calibrated first, the light path incident coordinates are determined, and then the detector 6 is moved to the corresponding position, and the blocking block 1 is adjusted to the corresponding coordinates to block the central beam for use.
[0019] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A central beam blocking device, characterized in that: The central beam blocking device includes a blocking block, a mylar film, a mylar film fixing plate, a mylar film cover plate, and a fixed bottom plate; the blocking block is two magnetic metal blocks, magnetically fixed on both sides of the mylar film, and the position can be adjusted through the blocking block on the outer side of the mylar film. The mylar film can ensure that the light path does not change when the light enters and ensure the airtightness of the distance between the mylar film and the detector surface. The mylar film cover plate is in a circular structure and covers the mylar film after the mylar film is placed on the fixed bottom plate. The mylar film fixing plate is fixedly connected to the fixed bottom plate by threads; after the light path is adjusted and calibrated, the light path entry coordinates are determined, and the blocking block is adjusted to the corresponding coordinates to block the central beam.
2. The central beam blocking device according to claim 1, wherein: The fixed bottom plate is in a circular shape for the beam to pass through. There are holes on the fixed bottom plate for threaded fixation with the detector, holes for threaded connection with the mylar film fixing plate, and some holes for inserting positioning cylinders.
3. The central beam blocking device according to claim 1, characterized in that: The mylar film cover plate is made of rubber or other sealing materials with the same properties. There is an arc-shaped notch on the mylar film cover plate, and the position of the notch corresponds to the position of the threaded hole on the fixed bottom plate connecting the mylar film fixing plate, so that the mylar film fixing plate does not contact the mylar film cover plate when threaded-connected to the fixed bottom plate. There is a through hole on the mylar film cover plate for the positioning cylinder to pass through.
4. A central beam blocking device according to claim 1, characterized in that: There are through holes on the mylar film fixing plate for threaded connection with the fixed bottom plate, and holes for inserting the positioning cylinder; there is a notch in the lower right corner of the detector, and the overall shape is roughly an inverted L shape. Part of the area of the mylar film fixing plate extends inward to cover the light-transmitting area of the mylar film, and the size of the extended area is determined according to the size of the detector notch.
5. The central beam blocking device according to claim 1, characterized in that: The blocking block is a magnetic metal block, and other metal blocks of other materials can be pasted on the magnetic metal block on the side where the mylar film fixing plate is installed.