Nuclear power radioactive sample scanning electron microscope sample stage
By designing a nuclear power radioactive sample scanning electron microscope sample stage with a sample tray driven by elastic parts and a detachable cover structure, the problems of difficult sample fixation and cross contamination are solved, and fast and stable sample detection and simplified operation are achieved.
Patent Information
- Application Number
- CN202422417933.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-09-29
AI Technical Summary
In the existing technology, it is difficult to fix nuclear power radioactive samples, and the use of traditional conductive tape leads to contamination of the sample stage and increased operational complexity.
A nuclear power radioactive sample scanning electron microscope sample stage was designed. The sample tray driven by elastic parts and the detachable cover structure were used to achieve fast and reliable sample fixation, avoid the use of conductive glue, and simplify the operation process.
It achieves rapid fixation and stable detection of samples, reduces the risk of cross-contamination of the sample stage, simplifies the operation process, and reduces the radiation exposure time of operators.
Smart Images
Figure CN223347734U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of nuclear power tools, in particular to a nuclear power radioactive sample scanning electron microscope sample stage. Background Art
[0002] The scanning electron microscope is a microscopic analytical laboratory instrument that can obtain information such as material morphology, element distribution, and crystal orientation. It is widely used in metal alloys, semiconductors, geology, and other fields. However, in the nuclear industry and nuclear material applications, due to the special radioactive properties of the samples, the use of ordinary sample stages has some disadvantages:
[0003] First, using conventional conductive tape to secure samples not only increases sample preparation time but also, because it is difficult to completely remove, contaminates the sample stage and hinders reuse. Second, to reduce the risk of radioactive material diffusion, sample loading and unloading operations typically require a specially designed glove box, significantly increasing operational complexity and time costs. Therefore, designing a more suitable SEM sample clamping structure and simplifying the sample securing steps are of great significance. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a nuclear power radioactive sample scanning electron microscope sample stage, which can solve the problems of difficult sample fixation and difficult sample detection operation.
[0005] The utility model provides a nuclear power radioactive sample scanning electron microscope sample stage, which comprises:
[0006] A base assembly, the base assembly comprising a bottom plate, an elastic member, and a sample tray, the elastic member being disposed on the bottom plate and connected to the sample tray; and
[0007] A cover assembly, the cover assembly comprising a cover body and a limiting member, the cover body being provided with a through hole, the through hole being arranged on the cover body, and the limiting member being exposed in the through hole;
[0008] The cover is detachably mounted on the base plate, and the elastic member drives the sample tray to move in the through hole, so that the sample is clamped by the sample tray and the limiting member.
[0009] Preferably, the nuclear power radioactive sample scanning electron microscope sample stage further includes a connecting component, and the connecting component is used to connect the cover and the chassis.
[0010] Preferably, the cover body is further provided with a plurality of fixing holes, and the connecting assembly includes a plurality of screws and a plurality of nuts, each of the screws is passed through each of the fixing holes in a one-to-one correspondence, and each of the nuts is screwed onto each of the screws in a one-to-one correspondence, so that each of the nuts holds the cover body against the chassis.
[0011] Preferably, the fixing holes are elongated holes, and the diameter of each of the elongated holes gradually decreases along the same circumferential direction of the cover body.
[0012] Preferably, the cover assembly includes a plurality of limiting members, each of which is provided on the cover body, and each of which is located at the edge of the through hole, and each of which is evenly distributed in a circle around the central axis of the through hole.
[0013] Preferably, each of the limiting members is an integrally formed structure with the cover body.
[0014] Preferably, the nuclear power radioactive sample scanning electron microscope sample stage further comprises a base, the base is provided with a position-avoiding groove, and at least one alignment portion is provided on the groove wall of the position-avoiding groove;
[0015] At least one alignment notch is provided on the chassis, the chassis is arranged in the avoidance groove, the chassis is adapted to the avoidance groove, and each alignment portion is inserted into each alignment portion in a one-to-one correspondence.
[0016] Preferably, a connector is provided at the bottom of the chassis, and the connector is used to connect to a scanning electron microscope.
[0017] Preferably, the cover assembly further includes at least two handles, each of which is arranged on the outer side of the periphery of the cover body.
[0018] Preferably, the elastic member is a spring; and / or
[0019] The bottom of the cover body is provided with a connecting skirt, and the connecting skirt is detachably connected to the chassis.
[0020] The implementation of this utility model has the following beneficial effects:
[0021] This utility model relates to a nuclear power radioactive sample scanning electron microscope sample stage. The sample tray, driven by an elastic member, automatically adapts to samples of varying sizes, enabling quick and reliable fixation without the need for conventional conductive adhesives or other fixing materials, simplifying sample preparation prior to testing. The cover assembly's removable cover facilitates sample loading and unloading in a glove box or specialized environment, reducing the operator's radiation exposure.
[0022] The combination of elastic elements and the sample tray ensures a stable and reliable hold during testing, eliminating safety risks associated with loose samples. The lid's retaining members, in conjunction with the sample tray, further enhance sample stability and reduce the risk of accidental sample dislodgement. Since adhesives such as conductive glue are not required, the sample tray is easy to clean, significantly improving sample stage reusability and reducing cross-contamination between samples. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.
[0024] Figure 1 This is a schematic structural diagram of a nuclear power radioactive sample scanning electron microscope sample stage in some embodiments of the present invention;
[0025] Figure 2 This is an exploded view of a nuclear power radioactive sample scanning electron microscope sample stage in some embodiments of the present invention;
[0026] Figure 3 This is a schematic diagram of the internal structure of a nuclear power radioactive sample scanning electron microscope sample stage in some embodiments of the present invention. DETAILED DESCRIPTION
[0027] The following describes embodiments of the present invention in more detail with reference to the accompanying drawings. Although the accompanying drawings illustrate embodiments of the present invention, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.
[0028] It should be understood that although the terms "first", "second", "third", etc. may be used in the present invention to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.
[0029] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0030] Unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," and the like should be interpreted broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0031] Figure 1 A nuclear power radioactive sample scanning electron microscope sample stage 10 in some embodiments is shown. The nuclear power radioactive sample scanning electron microscope sample stage 10 includes a base component 1 and a cover component 2. The cover component 2 is detachably mounted on the base component 1.
[0032] As can be understood, base assembly 1 is used to securely attach to a scanning electron microscope (SEM) and also supports the sample to be inspected. SEMs are conventional technology used to provide high-resolution surface topography images. They scan the sample surface point by point using a focused electron beam, collecting various signals to obtain information about the sample's morphology, composition, and other physical properties. Cover assembly 2 is used to secure the sample together with base assembly 1.
[0033] like Figures 1 to 3 As shown, the base assembly 1 includes a bottom plate 11 , an elastic member 12 and a sample tray 13 . The elastic member 12 is disposed on the bottom plate 11 and connected to the sample tray 13 .
[0034] The cover assembly 2 includes a cover 21 and a retaining member 22. The cover 21 defines a through-hole 211, which is disposed on the cover 21. The retaining member 22 is exposed within the through-hole 211. The cover 21 is removably attached to the base 11. The elastic member 12 drives the sample tray 13 within the through-hole 211, thereby clamping the sample between the sample tray 13 and the retaining member 22.
[0035] As can be understood, the chassis 11 is used to support other components. An elastic member 12 is mounted on the chassis 11 to provide elastic force to the sample tray 13. The sample tray 13 is used to place the sample to be tested. It is connected to the elastic member 12 and can move up and down due to the force provided by the elastic member 12.
[0036] The cover 21 is a removable component that fits over the base 11 for easy access. The through-hole 211 provides space for the sample tray 13 to move and exposes the sample surface to be inspected, allowing the SEM to scan and inspect the sample. The sample tray 13 also supports the sample. The stopper 22 restricts the sample's position to prevent it from moving or falling off.
[0037] When the cover 21 is placed on the base 11, the elastic member 12 generates an upward supporting force, while the stopper 22 is fixed to the base 11 and generates a downward pressure. The sample is supported from below by the sample tray 13 and restrained from above by the stopper 22, forming a stable clamping state.
[0038] like Figure 1 and Figure 2 As shown, in some embodiments of the nuclear power radioactive sample scanning electron microscope sample stage 10, the nuclear power radioactive sample scanning electron microscope sample stage 10 further includes a connecting component 3, which is used to connect the cover 21 and the base 11. It can be understood that the connecting component 3 is used to connect the cover 21 and the base 11.
[0039] like Figures 1 to 3 As shown, in some embodiments of the nuclear power radioactive sample scanning electron microscope sample stage 10, a plurality of fixing holes 212 are further opened on the cover body 21, and the connecting component 3 includes a plurality of screws 31 and a plurality of nuts 32. Each screw 31 is correspondingly inserted into each fixing hole 212, and each nut 32 is correspondingly screwed onto each screw 31, so that each nut 32 holds the cover body 21 against the chassis 11.
[0040] As will be understood, the fixing holes 212 are used to pass through the screws 31. The number of screws 31 matches the number of fixing holes 212, with each screw 31 passing through a corresponding fixing hole 212. The nuts 32 are paired with the screws 31, and the cover 21 is secured to the chassis 11 by tightening the nuts 32 and the skirt.
[0041] It should be noted that, through the content of this type of embodiment, fixation can be performed through multiple points, which can ensure that the connection between the cover 21 and the chassis 11 is more stable.
[0042] like Figures 1 to 3 As shown, in some embodiments of the nuclear power radioactive sample scanning electron microscope sample stage 10, the fixing holes 212 are elongated holes, and the apertures of the elongated holes gradually decrease along the same circumferential direction of the cover body 21.
[0043] As can be understood, the elongated hole allows the screw 31 to move within the hole space to a certain extent, which helps adjust the position of the cover 21 to accommodate samples of different sizes or slight deviations on the base 11. The design of the hole diameter gradually decreasing in the same direction can help guide the screw 31 to correct alignment during assembly, and the narrowing portion of the hole diameter can provide better positioning accuracy.
[0044] It should be noted that, in a further embodiment, the thickness of the connecting skirt 213 can be gradually increased, so that after the cover body 21 rotates relative to the chassis 11, the nut 32 will contact the position of the connecting skirt 213 where the thickness is relatively large, so that one side of the connecting skirt 213 is abutted against the nut 32, and the other side of the connecting skirt 213 is abutted against the chassis 11, thereby achieving the purpose of limiting the connecting skirt 213.
[0045] like Figures 1 to 3 As shown, in some embodiments of the nuclear power radioactive sample scanning electron microscope sample stage 10, the cover assembly 2 includes a plurality of limit members 22, each of which is arranged on the cover body 21, and each of the limit members 22 is located at the edge of the through hole 211, and each of the limit members 22 is evenly distributed in a circle around the central axis of the through hole 211.
[0046] It is understood that the number of limit members 22 can be configured to be multiple, and each limit member 22 can limit the sample from multiple different positions. Each limit member 22 is located at the edge of the through hole 211, which will make the surface of the sample to be inspected as close to the through hole 211 as possible, facilitating inspection and observation by the electron microscope.
[0047] like Figures 1 to 3 As shown, in some embodiments of the nuclear power radioactive sample scanning electron microscope sample stage 10, each limiting member 22 is an integrally formed structure with the cover body 21.
[0048] It can be understood that the integral molding of each limiting member 22 and the cover body 21 can improve the connection strength of the connection position and enhance the durability of the product.
[0049] like Figures 1 to 3 As shown, in some embodiments of the nuclear power radioactive sample scanning electron microscope sample stage 10, the nuclear power radioactive sample scanning electron microscope sample stage 10 further includes a base 4, the base 4 is provided with a avoidance groove 41, and at least one alignment portion 42 is formed on the groove wall of the avoidance groove 41;
[0050] At least one alignment notch 111 is provided on the chassis 11 . The chassis 11 is disposed in the avoidance groove 41 . The chassis 11 is adapted to the avoidance groove 41 , and each alignment portion 42 is inserted into each alignment portion 42 in a one-to-one correspondence.
[0051] As can be understood, the base 4 is fixed to the glove box table where the sample is loaded. The avoidance groove 41 is used to accommodate and position the chassis 11. The groove wall of the avoidance groove 41 is provided with at least one alignment portion 42, which is used to cooperate with the alignment notch 111 on the chassis 11 to achieve precise alignment and fixation.
[0052] The position and number of the alignment notches 111 match the alignment portions 42 on the base 4. When the chassis 11 is placed in the avoidance groove 41, each alignment notch 111 is matched with the corresponding alignment portion 42, that is, each alignment portion 42 can be accurately inserted into the corresponding alignment notch 111, thereby ensuring the stability and positioning accuracy of the chassis 11 in the base 4.
[0053] like Figure 3 As shown, in some embodiments of the nuclear power radioactive sample scanning electron microscope sample stage 10, a connector 112 is provided at the bottom of the chassis 11, and the connector 112 is used to connect to the scanning electron microscope.
[0054] It is understandable that the connecting member 112 can be configured in a columnar shape, or in a dovetail shape or other shapes, so that it can be assembled on the scanning electron microscope for fixation.
[0055] like Figures 1 to 3 As shown, in some embodiments of the nuclear power radioactive sample scanning electron microscope sample stage 10, the cover assembly 2 further includes at least two handles 23, and each handle 23 is arranged on the outer side of the periphery of the cover body 21.
[0056] It is understandable that the number of handles 23 can be selected according to actual needs and evenly distributed on the outer side of the periphery of the cover body 21 to ensure balance when lifting.
[0057] Specifically, the elastic member 12 is a spring.
[0058] like Figures 1 to 3 As shown, in some embodiments of the nuclear power radioactive sample scanning electron microscope sample stage 10, a connecting skirt 213 is provided at the bottom of the cover body 21, and the connecting skirt 213 is detachably connected to the base plate 11.
[0059] It can be understood that the connecting skirt 213 is located at the bottom edge of the cover body 21 and is designed to form a tight and stable connection with the chassis 11 .
[0060] The implementation of this utility model has the following beneficial effects:
[0061] This utility model relates to a nuclear power radioactive sample scanning electron microscope sample stage. The sample tray, driven by an elastic member, automatically adapts to samples of varying sizes, enabling quick and reliable fixation without the need for conventional conductive adhesives or other fixing materials, simplifying sample preparation prior to testing. The cover assembly's removable cover facilitates sample loading and unloading in a glove box or specialized environment, reducing the operator's radiation exposure.
[0062] The combination of elastic elements and the sample tray ensures a stable and reliable hold during testing, eliminating safety risks associated with loose samples. The lid's retaining members, in conjunction with the sample tray, further enhance sample stability and reduce the risk of accidental sample dislodgement. Since adhesives such as conductive glue are not required, the sample tray is easy to clean, significantly improving sample stage reusability and reducing cross-contamination between samples.
[0063] The scheme of the present invention has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have their own emphases. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the description are not necessarily required for the present invention. In addition, it can be understood that the steps in the method of the embodiment of the present invention can be adjusted in sequence, merged and deleted according to actual needs, and the modules in the device of the embodiment of the present invention can be merged, divided and deleted according to actual needs.
[0064] While various embodiments of the present invention have been described above, the above descriptions are illustrative and non-exhaustive, and are not intended to be limiting of the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to existing technologies, or to enable others skilled in the art to understand the embodiments disclosed herein.
Claims
1. A nuclear power radioactive sample scanning electron microscope sample stage, characterized in that: include: A base assembly, the base assembly comprising a chassis, an elastic member, and a sample tray, the elastic member being disposed on the chassis and connected to the sample tray; and A cover assembly, the cover assembly comprising a cover body and a limiting member, the cover body being provided with a through hole, the through hole being arranged on the cover body, and the limiting member being exposed in the through hole; The cover is detachably mounted on the base plate, and the elastic member drives the sample tray to move in the through hole, so that the sample is clamped by the sample tray and the limiting member.
2. The nuclear power radioactive sample scanning electron microscope sample stage according to claim 1, characterized in that: The nuclear power radioactive sample scanning electron microscope sample stage also includes a connecting component, and the connecting component is used to connect the cover and the chassis.
3. The nuclear power radioactive sample scanning electron microscope sample stage according to claim 2, characterized in that: The cover body is also provided with a plurality of fixing holes, and the connecting assembly includes a plurality of screws and a plurality of nuts. Each of the screws is passed through each of the fixing holes in a one-to-one correspondence, and each of the nuts is screwed onto each of the screws in a one-to-one correspondence, so that each of the nuts supports the cover body against the chassis.
4. The nuclear power radioactive sample scanning electron microscope sample stage according to claim 3, characterized in that: The fixing holes are elongated holes, and the diameter of each of the elongated holes gradually decreases along the same circumferential direction of the cover body.
5. The nuclear power radioactive sample scanning electron microscope sample stage according to claim 1, characterized in that: The cover assembly includes a plurality of limiting members, each of which is arranged on the cover body and is located at the edge of the through hole. The limiting members are evenly distributed around the central axis of the through hole.
6. The nuclear power radioactive sample scanning electron microscope sample stage according to claim 5, characterized in that: Each of the limiting members is integrally formed with the cover body.
7. The nuclear power radioactive sample scanning electron microscope sample stage according to claim 1, characterized in that: The nuclear power radioactive sample scanning electron microscope sample stage also includes a base, the base is provided with a avoidance groove, and the groove wall of the avoidance groove is provided with at least one alignment portion; At least one alignment notch is provided on the chassis, the chassis is arranged in the avoidance groove, the chassis is adapted to the avoidance groove, and each alignment portion is inserted into each alignment portion in a one-to-one correspondence.
8. The nuclear power radioactive sample scanning electron microscope sample stage according to claim 1 or 7, characterized in that: A connecting piece is provided at the bottom of the chassis, and the connecting piece is used to be connected to a scanning electron microscope.
9. The nuclear power radioactive sample scanning electron microscope sample stage according to claim 1, characterized in that: The cover assembly further includes at least two handles, each of which is arranged on the outer side of the periphery of the cover body.
10. The nuclear power radioactive sample scanning electron microscope sample stage according to claim 1 or 9, characterized in that: The elastic member is a spring; and / or The bottom of the cover body is provided with a connecting skirt, and the connecting skirt is detachably connected to the chassis.