Modeling and Reconstruction Strategy for Compton Scattering Tomography with Scintillation Crystals
The recent development of energy-resolved scintillation crystals opens the way to build novel imaging concepts based on the variable energy. Among them, Compton scattering tomography (CST) is one of the most ambitious concepts. Akin to Computerized Tomography (CT), it consists in probing the attenua...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-06-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/11/6/641 |
| _version_ | 1797531406447935488 |
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| author | Lorenz Kuger Gael Rigaud |
| author_facet | Lorenz Kuger Gael Rigaud |
| author_sort | Lorenz Kuger |
| collection | DOAJ |
| description | The recent development of energy-resolved scintillation crystals opens the way to build novel imaging concepts based on the variable energy. Among them, Compton scattering tomography (CST) is one of the most ambitious concepts. Akin to Computerized Tomography (CT), it consists in probing the attenuation map of an object of interest using external ionizing sources but strives to exploit the scattered radiation as an imaging agent. For medical applications, the scattered radiation represents 70 to 80% when the energy of the source is larger than 100 keV and results from the Compton effect. This phenomenon stands for the collision of a photon with an electron and rules the change of course and loss of energy undergone by the photon. In this article, we propose a modeling for the scattered radiation assuming polychromatic sources such as 60Co and scintillation crystals such as LBC:Ce. Further, we design a general strategy for reconstructing the electron density of the target specimen. Our results are illustrated for toy objects. |
| first_indexed | 2024-03-10T10:43:20Z |
| format | Article |
| id | doaj.art-d648018b16a448a88da5e46bc2d0b3d6 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T10:43:20Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-d648018b16a448a88da5e46bc2d0b3d62023-11-21T22:49:44ZengMDPI AGCrystals2073-43522021-06-0111664110.3390/cryst11060641Modeling and Reconstruction Strategy for Compton Scattering Tomography with Scintillation CrystalsLorenz Kuger0Gael Rigaud1Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Cambridge CB3 0WA, UKCenter for Industrial Mathematics, University of Bremen, 28344 Bremen, GermanyThe recent development of energy-resolved scintillation crystals opens the way to build novel imaging concepts based on the variable energy. Among them, Compton scattering tomography (CST) is one of the most ambitious concepts. Akin to Computerized Tomography (CT), it consists in probing the attenuation map of an object of interest using external ionizing sources but strives to exploit the scattered radiation as an imaging agent. For medical applications, the scattered radiation represents 70 to 80% when the energy of the source is larger than 100 keV and results from the Compton effect. This phenomenon stands for the collision of a photon with an electron and rules the change of course and loss of energy undergone by the photon. In this article, we propose a modeling for the scattered radiation assuming polychromatic sources such as 60Co and scintillation crystals such as LBC:Ce. Further, we design a general strategy for reconstructing the electron density of the target specimen. Our results are illustrated for toy objects.https://www.mdpi.com/2073-4352/11/6/641Compton spectrumscintillations crystalsmodeling |
| spellingShingle | Lorenz Kuger Gael Rigaud Modeling and Reconstruction Strategy for Compton Scattering Tomography with Scintillation Crystals Crystals Compton spectrum scintillations crystals modeling |
| title | Modeling and Reconstruction Strategy for Compton Scattering Tomography with Scintillation Crystals |
| title_full | Modeling and Reconstruction Strategy for Compton Scattering Tomography with Scintillation Crystals |
| title_fullStr | Modeling and Reconstruction Strategy for Compton Scattering Tomography with Scintillation Crystals |
| title_full_unstemmed | Modeling and Reconstruction Strategy for Compton Scattering Tomography with Scintillation Crystals |
| title_short | Modeling and Reconstruction Strategy for Compton Scattering Tomography with Scintillation Crystals |
| title_sort | modeling and reconstruction strategy for compton scattering tomography with scintillation crystals |
| topic | Compton spectrum scintillations crystals modeling |
| url | https://www.mdpi.com/2073-4352/11/6/641 |
| work_keys_str_mv | AT lorenzkuger modelingandreconstructionstrategyforcomptonscatteringtomographywithscintillationcrystals AT gaelrigaud modelingandreconstructionstrategyforcomptonscatteringtomographywithscintillationcrystals |