Research on the Intrinsic Sensing Performance of an Optical Fiber Dosimeter Based on Radiation-Induced Attenuation
Current research on dosimeters based on radiation-induced attenuation (RIA) primarily focused on enhancing radiation sensitivity or reducing dependencies from interference factors. However, their intrinsic sensing performance has received limited attention. This work proposed application and analysi...
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MDPI AG
2025-06-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/25/12/3716 |
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| author | Junyu Hou Zhanzu Feng Ge Ma Weiwei Zhang Zong Meng Yuhe Li |
| author_facet | Junyu Hou Zhanzu Feng Ge Ma Weiwei Zhang Zong Meng Yuhe Li |
| author_sort | Junyu Hou |
| collection | DOAJ |
| description | Current research on dosimeters based on radiation-induced attenuation (RIA) primarily focused on enhancing radiation sensitivity or reducing dependencies from interference factors. However, their intrinsic sensing performance has received limited attention. This work proposed application and analysis methods for RIA-based dosimeters, validated by a low-cost apparatus using commercial fibers. Initially, a generic protocol of high-dose detection after low-dose calibration was suggested to overcome the various dependencies of RIA, enabling repetitive monitoring of near-stable radiation by simple replacement of commercial fibers. Experiments comparing three dose-loss models demonstrated that the saturation-exponential model exhibited superior accuracy, achieving absolute errors below 4 Gy within a measurable range of up to ~300 Gy. Subsequently, the system’s RIA-based sensitivity was ~125.6 dB·Gy<sup>−1</sup>·km<sup>−1</sup>. The resolution and sensitivity expressed by optical power were newly defined, effectively quantifying the decline in precision and response ratio during detection. Moreover, an additional structure was introduced to extend the measurable range. Simulations and experiments under 1-MeV electron irradiation verified that adjustable ranges could be achieved through configuration of attenuation layers. In summary, these advancements provided critical guidance for component selection and operational evaluation, facilitating the commercialization and practical deployment of RIA-based dosimeters. |
| format | Article |
| id | doaj-art-c1e13cdbfd494eb99bbdd462d8d65129 |
| institution | DOAJ |
| issn | 1424-8220 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-c1e13cdbfd494eb99bbdd462d8d651292025-08-20T03:16:35ZengMDPI AGSensors1424-82202025-06-012512371610.3390/s25123716Research on the Intrinsic Sensing Performance of an Optical Fiber Dosimeter Based on Radiation-Induced AttenuationJunyu Hou0Zhanzu Feng1Ge Ma2Weiwei Zhang3Zong Meng4Yuhe Li5Department of Precision Instruments, Tsinghua University, Beijing 100084, ChinaSchool of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, ChinaDepartment of Engineering Physics, Tsinghua University, Beijing 100084, ChinaSchool of Electrical Engineering, Yanshan University, Qinhuangdao 066004, ChinaSchool of Electrical Engineering, Yanshan University, Qinhuangdao 066004, ChinaDepartment of Precision Instruments, Tsinghua University, Beijing 100084, ChinaCurrent research on dosimeters based on radiation-induced attenuation (RIA) primarily focused on enhancing radiation sensitivity or reducing dependencies from interference factors. However, their intrinsic sensing performance has received limited attention. This work proposed application and analysis methods for RIA-based dosimeters, validated by a low-cost apparatus using commercial fibers. Initially, a generic protocol of high-dose detection after low-dose calibration was suggested to overcome the various dependencies of RIA, enabling repetitive monitoring of near-stable radiation by simple replacement of commercial fibers. Experiments comparing three dose-loss models demonstrated that the saturation-exponential model exhibited superior accuracy, achieving absolute errors below 4 Gy within a measurable range of up to ~300 Gy. Subsequently, the system’s RIA-based sensitivity was ~125.6 dB·Gy<sup>−1</sup>·km<sup>−1</sup>. The resolution and sensitivity expressed by optical power were newly defined, effectively quantifying the decline in precision and response ratio during detection. Moreover, an additional structure was introduced to extend the measurable range. Simulations and experiments under 1-MeV electron irradiation verified that adjustable ranges could be achieved through configuration of attenuation layers. In summary, these advancements provided critical guidance for component selection and operational evaluation, facilitating the commercialization and practical deployment of RIA-based dosimeters.https://www.mdpi.com/1424-8220/25/12/3716radiation-induced attenuationoptical fiber dosimetersensing performance |
| spellingShingle | Junyu Hou Zhanzu Feng Ge Ma Weiwei Zhang Zong Meng Yuhe Li Research on the Intrinsic Sensing Performance of an Optical Fiber Dosimeter Based on Radiation-Induced Attenuation Sensors radiation-induced attenuation optical fiber dosimeter sensing performance |
| title | Research on the Intrinsic Sensing Performance of an Optical Fiber Dosimeter Based on Radiation-Induced Attenuation |
| title_full | Research on the Intrinsic Sensing Performance of an Optical Fiber Dosimeter Based on Radiation-Induced Attenuation |
| title_fullStr | Research on the Intrinsic Sensing Performance of an Optical Fiber Dosimeter Based on Radiation-Induced Attenuation |
| title_full_unstemmed | Research on the Intrinsic Sensing Performance of an Optical Fiber Dosimeter Based on Radiation-Induced Attenuation |
| title_short | Research on the Intrinsic Sensing Performance of an Optical Fiber Dosimeter Based on Radiation-Induced Attenuation |
| title_sort | research on the intrinsic sensing performance of an optical fiber dosimeter based on radiation induced attenuation |
| topic | radiation-induced attenuation optical fiber dosimeter sensing performance |
| url | https://www.mdpi.com/1424-8220/25/12/3716 |
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