Simulation study on the performance of micro X-ray tube with diamond optical window
BackgroundAs a hot material, diamond has been widely used in various civil and military equipment with high hardness (Mohs hardness is 10), compressive strength (greater than 1.2 GPa), excellent thermal (thermal conductivity at room temperature is 20~22 W·cm-1·K-1, thermal expansion coefficient at r...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
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Science Press
2021-04-01
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| Series: | He jishu |
| Subjects: | |
| Online Access: | http://www.hjs.sinap.ac.cn/thesisDetails#10.11889/j.0253-3219.2021.hjs.44.040201&lang=zh |
| _version_ | 1811169683994312704 |
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| author | XING Yiqiang ZHAO Jiankun LI Weicheng LIU Yibao LIU Wei JIANG Shuang |
| author_facet | XING Yiqiang ZHAO Jiankun LI Weicheng LIU Yibao LIU Wei JIANG Shuang |
| author_sort | XING Yiqiang |
| collection | DOAJ |
| description | BackgroundAs a hot material, diamond has been widely used in various civil and military equipment with high hardness (Mohs hardness is 10), compressive strength (greater than 1.2 GPa), excellent thermal (thermal conductivity at room temperature is 20~22 W·cm-1·K-1, thermal expansion coefficient at room temperature is only (1.1~1.3)×10-6 K-1), optical (higher transparency to X-rays) and electrical properties. Traditional optical window material beryllium is harmful to the human body and industrial hazards, its hardness, thermal conductivity and the thermal expansion coefficient are much lower than that of diamond.PurposeThis study aims to explore the performance of micro X-ray tube with diamond optical window by simulation, obtain the best thickness of diamond for X-ray tube optical window and its shielding effect against low, medium and high energy X-ray.MethodsThe Monte Carlo method was used to calculate the effective transmission ratio, peak back ratio and transmission ratio of characteristic X rays with diamond optical window in high energy region. The X-ray tube with 50 kV tube voltage and 1.0 mA tube current was taken as an example to determine the optimal thickness of diamond.ResultsSimulation results show that the Kα characteristic X-ray effective transmittance and peak to total X-ray ratio of the silver target increase continuously with the increase of the diamond window thickness, and the optimum diamond thickness is 2.0 mm. Under the optimal thickness of 2.0 mm, the effective transmittance is 154.5%, high-energy X-ray transmittance is 74.5%, and the characteristic X-ray peak back ratio is 27.9%.ConclusionsDiamond can be used as a substitute for beryllium optical windows and has good application prospect. |
| first_indexed | 2024-04-10T16:46:17Z |
| format | Article |
| id | doaj.art-314a81ee9dd54cbc872258b969d2f414 |
| institution | Directory Open Access Journal |
| issn | 0253-3219 |
| language | zho |
| last_indexed | 2024-04-10T16:46:17Z |
| publishDate | 2021-04-01 |
| publisher | Science Press |
| record_format | Article |
| series | He jishu |
| spelling | doaj.art-314a81ee9dd54cbc872258b969d2f4142023-02-08T00:41:56ZzhoScience PressHe jishu0253-32192021-04-0144404020104020110.11889/j.0253-3219.2021.hjs.44.0402010253-3219（2021）04-0008-07Simulation study on the performance of micro X-ray tube with diamond optical windowXING Yiqiang0ZHAO Jiankun1LI Weicheng2LIU Yibao3LIU Wei4JIANG Shuang5Fundamental Science on Radioactive Geology and Exploration Technology Laboratory, East China Institute of Technology, Nanchang 330013, ChinaFundamental Science on Radioactive Geology and Exploration Technology Laboratory, East China Institute of Technology, Nanchang 330013, ChinaSchool of Nuclear Science and Engineering, East China University of Technology, Nanchang 330013, ChinaSchool of Nuclear Science and Engineering, East China University of Technology, Nanchang 330013, ChinaSchool of Nuclear Science and Engineering, East China University of Technology, Nanchang 330013, ChinaSchool of Nuclear Science and Engineering, East China University of Technology, Nanchang 330013, ChinaBackgroundAs a hot material, diamond has been widely used in various civil and military equipment with high hardness (Mohs hardness is 10), compressive strength (greater than 1.2 GPa), excellent thermal (thermal conductivity at room temperature is 20~22 W·cm-1·K-1, thermal expansion coefficient at room temperature is only (1.1~1.3)×10-6 K-1), optical (higher transparency to X-rays) and electrical properties. Traditional optical window material beryllium is harmful to the human body and industrial hazards, its hardness, thermal conductivity and the thermal expansion coefficient are much lower than that of diamond.PurposeThis study aims to explore the performance of micro X-ray tube with diamond optical window by simulation, obtain the best thickness of diamond for X-ray tube optical window and its shielding effect against low, medium and high energy X-ray.MethodsThe Monte Carlo method was used to calculate the effective transmission ratio, peak back ratio and transmission ratio of characteristic X rays with diamond optical window in high energy region. The X-ray tube with 50 kV tube voltage and 1.0 mA tube current was taken as an example to determine the optimal thickness of diamond.ResultsSimulation results show that the Kα characteristic X-ray effective transmittance and peak to total X-ray ratio of the silver target increase continuously with the increase of the diamond window thickness, and the optimum diamond thickness is 2.0 mm. Under the optimal thickness of 2.0 mm, the effective transmittance is 154.5%, high-energy X-ray transmittance is 74.5%, and the characteristic X-ray peak back ratio is 27.9%.ConclusionsDiamond can be used as a substitute for beryllium optical windows and has good application prospect.http://www.hjs.sinap.ac.cn/thesisDetails#10.11889/j.0253-3219.2021.hjs.44.040201&lang=zhx-ray tubemonte carlo methoddiamondoptical windows |
| spellingShingle | XING Yiqiang ZHAO Jiankun LI Weicheng LIU Yibao LIU Wei JIANG Shuang Simulation study on the performance of micro X-ray tube with diamond optical window He jishu x-ray tube monte carlo method diamond optical windows |
| title | Simulation study on the performance of micro X-ray tube with diamond optical window |
| title_full | Simulation study on the performance of micro X-ray tube with diamond optical window |
| title_fullStr | Simulation study on the performance of micro X-ray tube with diamond optical window |
| title_full_unstemmed | Simulation study on the performance of micro X-ray tube with diamond optical window |
| title_short | Simulation study on the performance of micro X-ray tube with diamond optical window |
| title_sort | simulation study on the performance of micro x ray tube with diamond optical window |
| topic | x-ray tube monte carlo method diamond optical windows |
| url | http://www.hjs.sinap.ac.cn/thesisDetails#10.11889/j.0253-3219.2021.hjs.44.040201&lang=zh |
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