Nanoporosity imaging by positronium lifetime tomography
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arXiv
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| Autori principali: | , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Natura: | Preprint |
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2024
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| _version_ | 1866912024733155328 |
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| author | Dulski, K. Beyene, E. Chug, N. Curceanu, C. Czerwiński, E. Das, M. Gorgol, M. Jasińska, B. Kacprzak, K. Kapłon, Ł. Korcyl, G. Kozik, T. Kubat, K. Kumar, D. Lisowski, E. Lisowski, F. Mędrala-Sowa, J. Niedźwiecki, S. Pandey, P. Parzych, S. del Rio, E. Perez Rädler, M. Sharma, S. Skurzok, M. Tayefi, K. Tanty, P. Stępień, E. Ł. Moskal, P. |
| author_facet | Dulski, K. Beyene, E. Chug, N. Curceanu, C. Czerwiński, E. Das, M. Gorgol, M. Jasińska, B. Kacprzak, K. Kapłon, Ł. Korcyl, G. Kozik, T. Kubat, K. Kumar, D. Lisowski, E. Lisowski, F. Mędrala-Sowa, J. Niedźwiecki, S. Pandey, P. Parzych, S. del Rio, E. Perez Rädler, M. Sharma, S. Skurzok, M. Tayefi, K. Tanty, P. Stępień, E. Ł. Moskal, P. |
| contents | Positron Annihilation Lifetime Spectroscopy (PALS) is a well-established non-destructive technique used for nanostructural characterization of porous materials. It is based on the annihilation of a positron and an electron. Mean positron lifetime in the material depends on the free voids size and molecular environment, allowing the study of porosity and structural transitions in the nanometer scale. We have developed a novel method enabling spatially resolved PALS, thus providing tomography of nanostructural characterization of an extended object. Correlating space (position) and structural (lifetime) information brings new insight in materials studies, especially in the characterization of the purity and pore distribution. For the first time, a porosity image using stationary positron sources for the simultaneous measurement of the porous polymers XAD4, silica aerogel powder IC3100, and polyvinyl toluene scintillator PVT by the J-PET tomograph is demonstrated |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_07963 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Nanoporosity imaging by positronium lifetime tomography Dulski, K. Beyene, E. Chug, N. Curceanu, C. Czerwiński, E. Das, M. Gorgol, M. Jasińska, B. Kacprzak, K. Kapłon, Ł. Korcyl, G. Kozik, T. Kubat, K. Kumar, D. Lisowski, E. Lisowski, F. Mędrala-Sowa, J. Niedźwiecki, S. Pandey, P. Parzych, S. del Rio, E. Perez Rädler, M. Sharma, S. Skurzok, M. Tayefi, K. Tanty, P. Stępień, E. Ł. Moskal, P. Applied Physics Positron Annihilation Lifetime Spectroscopy (PALS) is a well-established non-destructive technique used for nanostructural characterization of porous materials. It is based on the annihilation of a positron and an electron. Mean positron lifetime in the material depends on the free voids size and molecular environment, allowing the study of porosity and structural transitions in the nanometer scale. We have developed a novel method enabling spatially resolved PALS, thus providing tomography of nanostructural characterization of an extended object. Correlating space (position) and structural (lifetime) information brings new insight in materials studies, especially in the characterization of the purity and pore distribution. For the first time, a porosity image using stationary positron sources for the simultaneous measurement of the porous polymers XAD4, silica aerogel powder IC3100, and polyvinyl toluene scintillator PVT by the J-PET tomograph is demonstrated |
| title | Nanoporosity imaging by positronium lifetime tomography |
| topic | Applied Physics |
| url | https://arxiv.org/abs/2409.07963 |