Preliminary Study on Preparation Method of Gas Simulation Source Based on Silicon Aerogel
In order to prepare a simulation source that can replace 13N(T1/2=9.97 min) gas for direct calibration of 13N monitor，this paper adopts two-step wet gel preparation technology and CO2 supercritical drying technology to carry out research on the preparation process of silicon-based aerogel. TEOS is u...
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| Format: | Article |
| Language: | zho |
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Editorial Board of Journal of Isotopes
2025-02-01
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| Series: | Journal of Isotopes |
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| Online Access: | https://tws.xml-journal.net/article/doi/10.7538/tws.2024.youxian.062 |
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| author | Juhan LAI Wen XIA Shunhe YAO Lijun XU Yuntao LIU Lingze MENG Junbo ZHANG Yuanqiao LI |
| author_facet | Juhan LAI Wen XIA Shunhe YAO Lijun XU Yuntao LIU Lingze MENG Junbo ZHANG Yuanqiao LI |
| author_sort | Juhan LAI |
| collection | DOAJ |
| description | In order to prepare a simulation source that can replace 13N(T1/2=9.97 min) gas for direct calibration of 13N monitor，this paper adopts two-step wet gel preparation technology and CO2 supercritical drying technology to carry out research on the preparation process of silicon-based aerogel. TEOS is used as raw material to prepare precursor solution. After the precursor system was prepared，add acetone 45 times of the precursor raw material to dilute it，and the gel was gelled at pH=8. After supercritical drying,the preparation of the aerogel matrix meeting the requirement is finished. Based on this process，a 22Na (T1/2=2.60 a) gas simulation source was developed for calibration of a 13N monitor with a density of 4.6 mg/cm3 (4 times the air density), the intra-batch uniformity was 5%，and the inter-batch uniformity was 8%. A gas simulation source was used to calibrate the efficiency of a 13N monitor prototype，and there was a 25% relative deviation from the simulation results. |
| format | Article |
| id | doaj-art-255371fdb5514d559250ca3a4e0f0a83 |
| institution | Kabale University |
| issn | 1000-7512 |
| language | zho |
| publishDate | 2025-02-01 |
| publisher | Editorial Board of Journal of Isotopes |
| record_format | Article |
| series | Journal of Isotopes |
| spelling | doaj-art-255371fdb5514d559250ca3a4e0f0a832025-01-24T06:37:08ZzhoEditorial Board of Journal of IsotopesJournal of Isotopes1000-75122025-02-01381758010.7538/tws.2024.youxian.062202405062Preliminary Study on Preparation Method of Gas Simulation Source Based on Silicon AerogelJuhan LAI0Wen XIA1Shunhe YAO2Lijun XU3Yuntao LIU4Lingze MENG5Junbo ZHANG6Yuanqiao LI7China Institute of Atomic Energy, Beijing 102413, ChinaChina Institute of Atomic Energy, Beijing 102413, ChinaChina Institute of Atomic Energy, Beijing 102413, ChinaChina Institute of Atomic Energy, Beijing 102413, ChinaChina Institute of Atomic Energy, Beijing 102413, ChinaChina Institute of Atomic Energy, Beijing 102413, ChinaChina Institute of Atomic Energy, Beijing 102413, ChinaChina Institute of Atomic Energy, Beijing 102413, ChinaIn order to prepare a simulation source that can replace 13N(T1/2=9.97 min) gas for direct calibration of 13N monitor，this paper adopts two-step wet gel preparation technology and CO2 supercritical drying technology to carry out research on the preparation process of silicon-based aerogel. TEOS is used as raw material to prepare precursor solution. After the precursor system was prepared，add acetone 45 times of the precursor raw material to dilute it，and the gel was gelled at pH=8. After supercritical drying,the preparation of the aerogel matrix meeting the requirement is finished. Based on this process，a 22Na (T1/2=2.60 a) gas simulation source was developed for calibration of a 13N monitor with a density of 4.6 mg/cm3 (4 times the air density), the intra-batch uniformity was 5%，and the inter-batch uniformity was 8%. A gas simulation source was used to calibrate the efficiency of a 13N monitor prototype，and there was a 25% relative deviation from the simulation results.https://tws.xml-journal.net/article/doi/10.7538/tws.2024.youxian.062gas simulation sourcesilicon-based aerogel13n monitorefficiency calibration |
| spellingShingle | Juhan LAI Wen XIA Shunhe YAO Lijun XU Yuntao LIU Lingze MENG Junbo ZHANG Yuanqiao LI Preliminary Study on Preparation Method of Gas Simulation Source Based on Silicon Aerogel Journal of Isotopes gas simulation source silicon-based aerogel 13n monitor efficiency calibration |
| title | Preliminary Study on Preparation Method of Gas Simulation Source Based on Silicon Aerogel |
| title_full | Preliminary Study on Preparation Method of Gas Simulation Source Based on Silicon Aerogel |
| title_fullStr | Preliminary Study on Preparation Method of Gas Simulation Source Based on Silicon Aerogel |
| title_full_unstemmed | Preliminary Study on Preparation Method of Gas Simulation Source Based on Silicon Aerogel |
| title_short | Preliminary Study on Preparation Method of Gas Simulation Source Based on Silicon Aerogel |
| title_sort | preliminary study on preparation method of gas simulation source based on silicon aerogel |
| topic | gas simulation source silicon-based aerogel 13n monitor efficiency calibration |
| url | https://tws.xml-journal.net/article/doi/10.7538/tws.2024.youxian.062 |
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