Novel portable dose radiation monitoring device
By designing a portable radiation monitoring device, utilizing an ultraviolet LED array module and a multi-layer filter structure, combined with fluorescence image analysis, the problems of large size and inconvenience of existing equipment have been solved, achieving rapid and accurate radiation dose monitoring.
Patent Information
- Application Number
- CN202422795970.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-15
AI Technical Summary
Existing radiation dose monitoring equipment is complex in structure and large in size, making it inconvenient for real-time monitoring and widespread application.
A novel portable dose radiation monitoring device was designed, employing an ultraviolet LED array module, an interference filter, a phosphate glass radiation detection chip, a dielectric long-pass filter, and an attenuator support. By screening attenuators with different transmittance and analyzing fluorescence image big data, the radiation dose can be read.
It achieves miniaturization, portability, and low cost of the device, enabling rapid and accurate reading of radiation dose.
Smart Images
Figure CN223513348U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of radiation monitoring device technology, specifically to a novel portable dose radiation monitoring device. Background Technology
[0002] Radiation dose monitoring technology is an indispensable part of modern science and technology, widely used in environmental protection, scientific research, occupational health, and the medical field. With technological advancements and increased public awareness of radiation safety, the importance of radiation dose monitoring technology is becoming increasingly prominent. It is a crucial means of ensuring the health and safety of workers exposed to radiation. In fields such as nuclear industry, medical radiation, and industrial radiation, workers are exposed to radiation environments for extended periods. Radiation dose monitoring ensures that their radiation dose does not exceed permissible standards, preventing radiation damage.
[0003] With the rapid development of digital and intelligent technologies, radiation dose monitoring technology is also constantly moving towards digitalization and intelligence. Currently, radiation dose readout devices are usually complex in structure and large in size, which is not conducive to real-time monitoring of radiation dose and hinders the popularization of radiation dose monitoring.
[0004] To address the aforementioned problems, this utility model provides a novel portable dose radiation monitoring device that is simple in structure, easy to carry, and low in cost. Utility Model Content
[0005] This invention provides a novel portable dose radiation monitoring device that is simple in structure, easy to carry, and low in cost.
[0006] The purpose of this utility model is to provide a novel portable dose radiation monitoring device, comprising a shell, an ultraviolet LED array module, an interference filter, a phosphate glass radiation detection chip, a dielectric long-pass filter, an attenuator support, and an attenuator. The ultraviolet LED array module, the interference filter, the phosphate glass radiation detection chip, the dielectric long-pass filter, and the attenuator support are sequentially installed inside the shell, and the attenuator has four holes.
[0007] Furthermore, there are four attenuator plates, with throughputs of 99%, 90%, 80%, and 50%, respectively, which are sequentially arranged in four holes on the attenuator plate bracket.
[0008] Furthermore, the transmission band of the dielectric long-pass filter is 500–900 nm, and the cutoff band is 200–450 nm.
[0009] Furthermore, the emission wavelength range of the ultraviolet LED array module is 300–400 nm.
[0010] Furthermore, a phosphate glass radiation standard color chart is also arranged in parallel between the interference filter and the dielectric long-pass filter.
[0011] This invention has the following advantages: It achieves radiation dose reading through screening of attenuation plates with different transmittance and big data analysis of fluorescence images. The invention has multiple advantages such as simple optical structure, low material cost, and small size for easy portability. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;
[0013] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of this utility model.
[0014] In the figure: 1. Ultraviolet LED array module; 2. Interference filter; 3. Phosphate glass radiation detection chip; 4. Dielectric long-pass filter; 5. Attenuator bracket; 6. Attenuator; 7. Housing; 8. Phosphate glass radiation standard color chart. Detailed Implementation
[0015] Example 1:
[0016] It includes an ultraviolet LED array module 1, an interference filter 2, a phosphate glass radiation detection chip 3, a dielectric long-wavelength filter 4, an attenuator support 5, and an attenuator 6.
[0017] like Figure 1 As shown, the attenuator support 5 is equipped with attenuators 6 with different transmittances, including attenuator 6 with a transmittance of 99%, attenuator 6 with a transmittance of 90%, attenuator 6 with a transmittance of 80%, and attenuator 6 with a transmittance of 50%.
[0018] like Figure 1As shown, the ultraviolet LED module array emits light waves with a wavelength range of 300–400 nm. After being filtered by the interference filter 2, only ultraviolet light with a wavelength of 355 nm is allowed to pass through and illuminate the surface of the detector chip. This specific wavelength of ultraviolet light serves as the excitation source, causing the phosphate glass radiation detector chip 3 to release orange fluorescence with a wavelength of 650 nm. This fluorescence then passes through the dielectric long-pass filter 4 located at the top of the device for final filtration, ensuring that only fluorescence of the specific wavelength band passes through. Subsequently, attenuators 6 with different transmittances are placed at the attenuator support 5. Because the fluorescence intensity of the detector chip with lower radiation is also lower, its light beam can only pass through the attenuator 6 with a transmittance of 99%. Conversely, the fluorescence intensity of the detector chip with higher radiation is also higher, and its light beam can pass through not only the attenuator 6 with a transmittance of 99% but also the attenuator 6 with a transmittance of 90%. However, its intensity decreases as the transmittance of the attenuator 6 decreases. When reading the radiation dose, the radiation dose range can be read simply by counting the number of windows through which the fluorescence can exit.
[0019] Example 2:
[0020] It includes an ultraviolet LED array module 1, an interference filter 2, a phosphate glass radiation detection chip 3, a phosphate glass radiation standard color chart 8, and a dielectric long-wavelength filter 4.
[0021] like Figure 2 As shown, a phosphate glass radiation detection chip 3 and a phosphate glass radiation standard color card 8 are placed parallel to each other between the interference filter 2 and the dielectric long-wave pass filter 4.
[0022] like Figure 2 As shown, the phosphate glass radiation standard color chart 8 has been calibrated using fluorescence intensity at different doses.
[0023] like Figure 2 As shown, the phosphate glass radiation detection chip 3 serves as the actual radiation detection chip.
[0024] like Figure 2 As shown, the ultraviolet LED array module emits light waves with a wavelength range of 300–400 nm. After being filtered by the interference filter 2, only ultraviolet light with a wavelength of 355 nm is allowed to pass through and illuminate the detector chip and the surface of the phosphate glass radiation standard color chart 8. This specific wavelength of ultraviolet light serves as the excitation source, simultaneously exciting both detector chips. Finally, the light passes through the dielectric long-pass filter 4 located at the top of the device for final filtering of the fluorescence, ensuring that fluorescence of the specific wavelength band passes through. The radiation dose value can be obtained by extracting the fluorescence images of the two detectors using a camera and performing comparative analysis with a database.
[0025] Although specific embodiments of the present invention have been described in detail with reference to the accompanying drawings, this should not be construed as limiting the scope of protection of the present invention. Various modifications and variations that can be made by those skilled in the art without inventive effort within the scope described in the claims still fall within the scope of protection of the present invention.
Claims
1. A novel portable dose radiation monitoring device, comprising a shell, an ultraviolet LED array module, an interference filter, a phosphate glass radiation detection chip, a dielectric long-pass filter, an attenuator support, and an attenuator, characterized in that: The ultraviolet LED array module, interference filter, phosphate glass radiation detection chip, dielectric long-pass filter and attenuator bracket are sequentially installed inside the housing, and the attenuator has four holes.
2. The novel portable dose radiation monitoring device as described in claim 1, characterized in that: The number of attenuators is four, and the attenuators have a throughput of 99%, 90%, 80% and 50% respectively, and are arranged in sequence in the four holes opened on the attenuator bracket.
3. The novel portable dose radiation monitoring device as described in claim 1, characterized in that: The transmission band of the medium long-wavelength filter is 500–900 nm, and the cutoff band is 200–450 nm.
4. The novel portable dose radiation monitoring device as described in claim 1, characterized in that: The emission wavelength range of the ultraviolet LED array module is 300–400 nm.
5. A novel portable dose radiation monitoring device as described in claim 1, characterized in that: A phosphate glass radiation standard color chart is also arranged in parallel between the interference filter and the dielectric long-pass filter.