Study of gas pipelines cracks using transmission andCompton scattering
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Sociedade Brasileira de Proteção Radiológica - SBPR
2021
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| _version_ | 1876422145774452736 |
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| author | Marcela Ferreira Freitas |
| author_facet | Marcela Ferreira Freitas |
| contents | Study of gas pipelines cracks using transmission andCompton scattering Marcela Ferreira Freitas Cesar Marques Salgado Biología gamma cracks ray gauge densitometry Gas pipelines Most of the natural gas production is transported through pipelines that require periodic inspections to evaluate thestructural integrity of the pipelines due to possible defects caused by degradation that can rupture causing leakage of thefluid causing major disasters. Based on this, the project presents a methodology for predicting cracks in pipe used in gaspipelines. The approximation is based on the principles of gamma densitometry to calculate the density of the pipe wallin order to investigate possible cracks. The natural gas fluid is found in such systems and interferes in the density calculations and therefore will be considered in the simulations. The detection system uses a narrow beam geometry appropriately, comprising gamma ray source (137Cs) and NaI (Tl) 3"x3" detectors for calculating transmitted and scatteredphotons. Different positioning angles of the detector are investigated. In this study, the MCNP-X code is used to perform the simulations, in order to develop a counting geometry. Simulations of different thicknesses of the crack werealso used to determine the minimum thickness detected by the two NaI (Tl) detectors. Having equipment that can estimate cracks present in pipes used in gas pipelines, in addition to predicting their location can reduce costs and make amajor contribution to this sector. 2021 artículo científico 2319-0612 https://www.redalyc.org/articulo.oa?id=722280948005 en http://www.redalyc.org/revista.oa?id=7222 Brazilian Journal of Radiation Sciences application/pdf Sociedade Brasileira de Proteção Radiológica - SBPR Brazilian Journal of Radiation Sciences (Brasil) Num.2A Vol.9 |
| format | Artículo científico |
| id | redalyc_722280948005 |
| institution | Redalyc |
| language | en |
| publishDate | 2021 |
| publisher | Sociedade Brasileira de Proteção Radiológica - SBPR |
| spellingShingle | Study of gas pipelines cracks using transmission andCompton scattering Marcela Ferreira Freitas Biología gamma cracks ray gauge densitometry Gas pipelines Study of gas pipelines cracks using transmission andCompton scattering Marcela Ferreira Freitas Cesar Marques Salgado Biología gamma cracks ray gauge densitometry Gas pipelines Most of the natural gas production is transported through pipelines that require periodic inspections to evaluate thestructural integrity of the pipelines due to possible defects caused by degradation that can rupture causing leakage of thefluid causing major disasters. Based on this, the project presents a methodology for predicting cracks in pipe used in gaspipelines. The approximation is based on the principles of gamma densitometry to calculate the density of the pipe wallin order to investigate possible cracks. The natural gas fluid is found in such systems and interferes in the density calculations and therefore will be considered in the simulations. The detection system uses a narrow beam geometry appropriately, comprising gamma ray source (137Cs) and NaI (Tl) 3"x3" detectors for calculating transmitted and scatteredphotons. Different positioning angles of the detector are investigated. In this study, the MCNP-X code is used to perform the simulations, in order to develop a counting geometry. Simulations of different thicknesses of the crack werealso used to determine the minimum thickness detected by the two NaI (Tl) detectors. Having equipment that can estimate cracks present in pipes used in gas pipelines, in addition to predicting their location can reduce costs and make amajor contribution to this sector. 2021 artículo científico 2319-0612 https://www.redalyc.org/articulo.oa?id=722280948005 en http://www.redalyc.org/revista.oa?id=7222 Brazilian Journal of Radiation Sciences application/pdf Sociedade Brasileira de Proteção Radiológica - SBPR Brazilian Journal of Radiation Sciences (Brasil) Num.2A Vol.9 |
| title | Study of gas pipelines cracks using transmission andCompton scattering |
| topic | Biología gamma cracks ray gauge densitometry Gas pipelines |
| url | https://www.redalyc.org/articulo.oa?id=722280948005 |