Thermoluminescence dosimeter convenient to calibrate

Abstract

The utility model relates to the technical field of thermoluminescence dosimeters, in particular to a thermoluminescence dosimeter convenient to calibrate. The device comprises a device body which is internally provided with an inner container, a photosensitive member and a thermoluminescence detector. A mounting part is arranged on one side wall of the instrument body, and an observation opening is formed above the mounting part. A second reflective mirror is arranged on the bottom side in the installation part, right faces the light sensing part and inclines upwards in the direction away from the light sensing part. A colorimetric card, an extension ring and a first reflective mirror are arranged at the upper end of the mounting part, and the observation opening penetrates through the colorimetric card, the extension ring and the first reflective mirror. By means of the design, a user can observe the radiation equivalent received by the light sensing part in real time through the observation opening, and measurement intuition and accuracy are improved. A spectrum analyzer is arranged on one side wall of the instrument body, is positioned above the mounting part and is used for analyzing a thermoluminescence signal. According to the utility model, the received radiation equivalent can be observed in real time, and the device is suitable for various radiation measurement occasions.

Description

Technical Field

[0001] This utility model relates to the field of thermoluminescent dosimeter technology, and more specifically, to a thermoluminescent dosimeter that is easy to calibrate. Background Technology

[0002] With the development of science and technology and the increasing demand for radiation measurement in fields such as nuclear energy, medicine, and industry, thermoluminescent dosimeters, as an important radiation measurement device, have been widely used. Thermoluminescent dosimeters assess the cumulative radiation dose by measuring the light signal emitted by a material after being exposed to ionizing radiation. However, existing thermoluminescent dosimeters have some problems in practical use, especially the inconvenience in calibration, which seriously affects the accuracy and reliability of the measurements.

[0003] First, traditional thermoluminescent dosimeters are complex in design, and the calibration process is cumbersome and time-consuming. Users need to manually adjust multiple parameters to ensure the instrument's sensitivity and linearity, which not only increases the difficulty of operation but also easily introduces human error. Second, existing dosimeters lack real-time observation capabilities during measurement, preventing users from intuitively understanding the radiation equivalent received by the instrument, which is particularly disadvantageous in situations requiring rapid response. Furthermore, traditional dosimeters are often not compact in design, are bulky, and inconvenient to carry and use in the field. Utility Model Content

[0004] The purpose of this invention is to provide a thermoluminescent dosimeter that is easy to calibrate, so as to solve the problems of inconvenient calibration and lack of real-time monitoring in the prior art.

[0005] To achieve the above objectives, a thermoluminescent dosimeter that is easy to calibrate is provided, comprising an instrument body, an inner liner inside the instrument body, a photosensitive element inserted on the inner liner above the middle of the instrument body, a thermoluminescent detector inserted on the inner liner below the middle of the instrument body, a slot on the side wall of the instrument body near the photosensitive element, a mounting part inside the slot, and an observation port above the mounting part.

[0006] As a further improvement to this technical solution, a second reflector is provided on the bottom side inside the mounting part. The second reflector faces the photosensitive element and is tilted upwards in a direction away from the photosensitive element.

[0007] As a further improvement to this technical solution, a colorimetric card is provided at the upper end of the installation part, an extension ring is provided at the lower end of the colorimetric card, a first reflector is provided at the lower end of the extension ring, the first reflector is located at the upper end of the second reflector, and the colorimetric card, the extension ring and the first reflector are all penetrated by the observation port.

[0008] As a further improvement to this technical solution, two pop-out springs are provided at the bottom of the instrument body, and the top of the pop-out springs is fixedly connected to the bottom of the inner liner.

[0009] As a further improvement to this technical solution, a spectrometer is provided on one side wall of the instrument body in the direction of the mounting part, and the spectrometer is located above the mounting part.

[0010] As a further improvement to this technical solution, a cover is provided at the top of the instrument body, and a hanging part is also provided on one side wall of the instrument body in the opposite direction to the mounting part.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This easily calibrated thermoluminescent dosimeter features an observation port above the mounting section, equipped with a colorimetric card and a reflector system, allowing users to observe the radiation equivalent received by the photosensitive element in real time. This real-time monitoring function enables users to quickly determine the instrument's status and measurement results, improving the intuitiveness and accuracy of measurements. This function is particularly important in environments requiring rapid response, such as medical radiotherapy and nuclear facility monitoring, enabling timely detection of anomalies and appropriate action.

[0013] 2. This easily calibrated thermoluminescent dosimeter significantly simplifies the calibration process by optimizing its internal structure and adding auxiliary equipment such as a spring and a spectrometer. It reduces manual adjustment steps and minimizes human error. Users can complete calibration quickly and accurately, ensuring the reliability of measurement results. This improvement not only saves time and labor costs but also increases work efficiency, making it particularly suitable for applications requiring frequent calibration. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0015] Figure 2 This is a partial cross-sectional view of the mounting section of this utility model;

[0016] Figure 3 This is a cross-sectional structural diagram of the instrument body of this utility model.

[0017] The meanings of the labels in the diagram are as follows:

[0018] The components include: 1. Instrument body; 2. Cover; 3. Hanger; 4. Mounting part; 5. Colorimetric card; 6. Spectrometer; 7. First reflector; 8. Second reflector; 9. Observation port; 10. Inner liner; 11. Photosensitive element; 12. Thermoluminescence detector; 13. Pop-up spring; 14. Groove; 15. Extension ring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] Please see Figures 1-3 As shown, the purpose of this embodiment is to provide a thermoluminescent dosimeter that is easy to calibrate, including a body 1, which has an inner liner 10 inside. A photosensitive element 11 is inserted into the upper part of the inner liner 10, and a thermoluminescent detector 12 is inserted into the lower part. A slot 14 is provided on one side wall of the body 1, and a mounting part 4 is provided in the slot 14. An observation port 9 is provided above the mounting part 4.

[0023] A second reflector 8 is located on the bottom side of the mounting section 4. The second reflector 8 faces the photosensitive element 11 and is tilted upwards in a direction away from the photosensitive element 11. This design ensures that the light signal reflected by the photosensitive element 11 can be effectively transmitted to the observation port 9. A colorimetric card 5 is located at the upper end of the mounting section 4. An extension ring 15 is located at the lower end of the colorimetric card 5. A first reflector 7 is located at the lower end of the extension ring 15. The first reflector 7 is located above the second reflector 8, and the colorimetric card 5, the extension ring 15, and the first reflector 7 are all penetrated by the observation port 9. Through this multi-layered reflector system, the user can observe the radiation equivalent received by the photosensitive element 11 in real time through the observation port 9, improving the intuitiveness and accuracy of the measurement.

[0024] Two pop-out springs 13 are located at the bottom of the instrument body 1, with the top of each spring fixedly connected to the bottom of the inner liner 10. This design ensures the stability of the inner liner 10 during use and facilitates easy removal for cleaning and maintenance, while also simplifying the calibration process. When calibration is required, the user simply rotates the cover 2 gently. As the cover 2 moves away from the instrument body 1, the pop-out springs 13 automatically push the inner liner 10 out of the instrument body 1. Afterward, the cover 2 is completely removed, and the top of the inner liner 10 protrudes from the casing. The user can then easily pull out the inner liner 10, remove the thermoluminescent detector 12, and send the thermoluminescent detector 12 to the testing machine to measure the radiation.

[0025] After testing, the user can install a new thermoluminescent detector 12 on the inner liner 10, and then reinsert the inner liner 10 into the instrument body 1, ensuring it is fully in place. Finally, tighten the cap 2 again to secure the inner liner 10 inside the instrument body 1. This design allows users to easily and quickly replace the thermoluminescent detector 12, ensuring the dosimeter is always in optimal working condition.

[0026] A spectrometer 6 is mounted on one side wall of the instrument body 1, and is located above the mounting part 4. The spectrometer 6 is used to analyze thermoluminescence signals, providing detailed spectral data to help users more accurately assess radiation dose. Through the spectrometer 6, users can obtain richer measurement information, improving the scientific rigor and reliability of the measurements.

[0027] The upper part of the instrument body 1 is equipped with a cover 2, which can effectively protect the internal components, prevent dust and contaminants from entering, and ensure the long-term stable operation of the instrument. A hanging device 3 is also provided on one side wall of the instrument body 1, which allows the user to hang the dosimeter on their chest. After two months of use, the thermoluminescent detector 12 can be easily calibrated and replaced to ensure the accuracy and reliability of the measurement.

[0028] Through the above design, this dosimeter not only enables real-time monitoring and intuitive operation, but also has high accuracy and reliability, making it suitable for various radiation measurement occasions and possessing broad practical value and application prospects.

[0029] Working Principle: When the instrument is working, the photosensitive element 11 in the inner chamber 10 receives radiation from the environment, and this radiation energy is stored in the photosensitive element 11. Thermoluminescence detector 12 is located at the bottom of the inner chamber 10 and is used to detect the light signal emitted by the photosensitive element 11. When data needs to be read, the user can see the light signal of the photosensitive element 11 through the observation port 9. At the same time, the second reflector 8 inside the mounting part 4 reflects the light signal to the first reflector 7, and then compares the color using the color chart 5, thereby achieving real-time observation of the radiation equivalent. The spectrometer 6 is located above the mounting part 4 and is used to analyze the thermoluminescence signal, providing detailed spectral data. When calibration is required, the user rotates the cover 2. As the cover 2 gradually moves away from the instrument body 1, the pop-out spring 13 pushes the inner chamber 10 to gradually move out of the instrument body 1, making it convenient for the user to remove the thermoluminescence detector 12 for testing and replacement. The whole process is simple and quick, ensuring the accuracy and reliability of the measurement.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A thermoluminescence dosimeter for ease of calibration comprising a body (1) characterised in that: The instrument body (1) is internally provided with an inner container (10), the inner container (10) is provided with a photosensitive part (11) above the middle part of the instrument body (1), and the inner container (10) is provided with a thermoluminescence detector (12) below the middle part of the instrument body (1); the instrument body (1) is provided with a notch (14) at the side wall close to the photosensitive part (11), the notch (14) is provided with a mounting part (4), and the mounting part (4) is provided with an observation port (9) above.

2. The TL dosimeter for easy calibration as claimed in claim 1 wherein: The bottom side of the mounting part (4) is provided with a second reflector (8), the second reflector (8) is opposite to the photosensitive part (11) and is inclined upward away from the photosensitive part (11).

3. The TL dosimeter for easy calibration as claimed in claim 2 wherein: The mounting part (4) is provided with a color card (5) at the upper end, the color card (5) is provided with an extension ring (15) at the lower end, the extension ring (15) is provided with a first reflector (7) at the lower end, the first reflector (7) is located at the upper end of the second reflector (8), and the color card (5), the extension ring (15) and the first reflector (7) are all penetrated by the observation port (9).

4. The TL dosimeter for easy calibration as claimed in claim 1 wherein: The bottom end of the instrument body (1) is provided with two ejection springs (13), and the top end of the ejection spring (13) is fixedly connected with the bottom end of the inner container (10).

5. The TL dosimeter for easy calibration as claimed in claim 1 wherein: The instrument body (1) is provided with a spectrum analyzer (6) on the side wall in the direction of the mounting part (4), and the spectrum analyzer (6) is located above the mounting part (4).

6. The TL dosimeter for easy calibration as claimed in claim 5 wherein: The upper end of the instrument body (1) is provided with a cover (2), and the side wall of the instrument body (1) is further provided with a hanging part (3) in the opposite direction of the mounting part (4).

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