| 聚焦线圈对管道爬行器X射线管电子束轨迹的纠正作用 |
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| 引用本文： | 张金光,李冬雪,马春青. 聚焦线圈对管道爬行器X射线管电子束轨迹的纠正作用[J]. 无损检测, 2012, 0(6): 62-64 |
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| 作者姓名： | 张金光 李冬雪 马春青 |
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| 作者单位： | [1]徐州东方工程检测有限责任公司,徐州221008 [2]丹东华日理学电气有限公司,丹东118000 [3]中国石油天然气管道局外事办公室,廊坊065000 |
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| 摘 要： | X射线管道爬行器在长输管道环焊缝射线检测中得到越来越广泛的应用。其在西气东输二线大口径长输管道的应用中,出现周向锥靶X射线发生器偏靶现象,致使周向X射线场强不均匀,拍摄的底片黑度差异大。对此提出了将聚焦线圈应用在周向锥靶X射线发生器中,以纠正电子束轨迹的方法。通过分析,试验达到了周向上场强均匀的目的。在后续的长输管道射线检测应用施工中收到良好效果。
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| 关 键 词： | 射线检测 管道爬行器 聚焦线圈 周向锥靶 场强 |
Research of Gathering Focus Wire for Rectifying Electron Locus Based on the Focusing Coil for X Ray Tube Electron Beam Trajectory Correction Technology |
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| ZHANG Jin-Guang,LI Dong-Xue,MA Chun-Qing. Research of Gathering Focus Wire for Rectifying Electron Locus Based on the Focusing Coil for X Ray Tube Electron Beam Trajectory Correction Technology[J]. Nondestructive Testing, 2012, 0(6): 62-64 |
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| Authors: | ZHANG Jin-Guang LI Dong-Xue MA Chun-Qing |
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| Affiliation: | 1. Xuzhou Oriental Engineering Testing Company, Xuzhou 221008, China; 2. Dandong Huari Electric Company, Dandong 118000, China; Foreign Affairs Office, China Petroleum Pipeline Bureau, Langfang 065000, China) |
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| Abstract: | X ray crawler in long distance pipeline girth welding seam X-ray detection is widely used. During the application in the second west to East Gas Pipeline Project of large diameter pipeline, partial target phenomenon was observed for circumferential conical target X ray generator, causing the circumferential X ray intensity inhomogeneity and film densiting difference. To solve this problem, the focusing coil was used in the circumferential conical target X ray generator to correct the trajectory ofeleetron beam. Through the analysis of the experiment, circumferential field intensity reached the purpose of uniform. Application in the follow-up of the long distance pipeline construction in radiographic testing received good results. |
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| Keywords: | Radiographic testing Pipe crawler Focus coil Circumferential conical target Field intensity |
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