Developing a phantom for the positronium imaging evaluation

2022
journal article
article
1
cris.lastimport.wos2024-04-09T22:29:55Z
dc.abstract.enIn this contribution, a concept for a new phantom for positronium imaging with PET scanners is described. The proposed phantom is based on the NEMA IEC phantom in which six high-activity spheres are filled with solutions characterized by a different mean ortho-positronium lifetime. A method for controlling ortho-positronium lifetime is discussed along with preliminary results. The XAD4 suspended in various fractions of water was tested as a potential model of a sample with a controlled mean lifetime of ortho-positronium. The mean lifetime of ortho-positronium for six samples was estimated by means of the Positronium Annihilation Lifetime Spectroscopy (PALS). Obtained spectra were fitted with the PALS Avalanche analysis program and components corresponding to the ortho-positronium annihilation in the XAD4 pores were established. As a result, the correlations between the lifetime and production intensity of ortho-positronium and the concentration of XAD4 in water were determined.pl
dc.affiliationWydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiegopl
dc.contributor.authorŁapkiewicz, Gabrielapl
dc.contributor.authorNiedźwiecki, Szymon - 115136 pl
dc.contributor.authorMoskal, Paweł - 100401 pl
dc.contributor.institutionJ-PET Collaborationpl
dc.date.accessioned2023-02-16T10:36:29Z
dc.date.available2023-02-16T10:36:29Z
dc.date.issued2022pl
dc.date.openaccess0
dc.description.accesstimew momencie opublikowania
dc.description.number4pl
dc.description.versionostateczna wersja wydawcy
dc.description.volume15pl
dc.identifier.articleidA4pl
dc.identifier.doi10.5506/APhysPolBSupp.15.4-A4pl
dc.identifier.eissn2082-7865pl
dc.identifier.issn1899-2358pl
dc.identifier.urihttps://ruj.uj.edu.pl/xmlui/handle/item/307880
dc.languageengpl
dc.language.containerengpl
dc.rightsUdzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa*
dc.rights.licenceCC-BY
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/legalcode.pl*
dc.share.typeotwarte czasopismo
dc.subtypeArticlepl
dc.titleDeveloping a phantom for the positronium imaging evaluationpl
dc.title.journalActa Physica Polonica. B, Proceedings Supplementpl
dc.title.volume4th Jagiellonian Symposium on Advances in Particle Physics and Medicine, Kraków, Poland, 10-15 July, 2022pl
dc.typeJournalArticlepl
dspace.entity.typePublication
cris.lastimport.wos
2024-04-09T22:29:55Z
dc.abstract.enpl
In this contribution, a concept for a new phantom for positronium imaging with PET scanners is described. The proposed phantom is based on the NEMA IEC phantom in which six high-activity spheres are filled with solutions characterized by a different mean ortho-positronium lifetime. A method for controlling ortho-positronium lifetime is discussed along with preliminary results. The XAD4 suspended in various fractions of water was tested as a potential model of a sample with a controlled mean lifetime of ortho-positronium. The mean lifetime of ortho-positronium for six samples was estimated by means of the Positronium Annihilation Lifetime Spectroscopy (PALS). Obtained spectra were fitted with the PALS Avalanche analysis program and components corresponding to the ortho-positronium annihilation in the XAD4 pores were established. As a result, the correlations between the lifetime and production intensity of ortho-positronium and the concentration of XAD4 in water were determined.
dc.affiliationpl
Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
dc.contributor.authorpl
Łapkiewicz, Gabriela
dc.contributor.authorpl
Niedźwiecki, Szymon - 115136
dc.contributor.authorpl
Moskal, Paweł - 100401
dc.contributor.institutionpl
J-PET Collaboration
dc.date.accessioned
2023-02-16T10:36:29Z
dc.date.available
2023-02-16T10:36:29Z
dc.date.issuedpl
2022
dc.date.openaccess
0
dc.description.accesstime
w momencie opublikowania
dc.description.numberpl
4
dc.description.version
ostateczna wersja wydawcy
dc.description.volumepl
15
dc.identifier.articleidpl
A4
dc.identifier.doipl
10.5506/APhysPolBSupp.15.4-A4
dc.identifier.eissnpl
2082-7865
dc.identifier.issnpl
1899-2358
dc.identifier.uri
https://ruj.uj.edu.pl/xmlui/handle/item/307880
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa
dc.rights.licence
CC-BY
dc.rights.uri*
http://creativecommons.org/licenses/by/4.0/legalcode.pl
dc.share.type
otwarte czasopismo
dc.subtypepl
Article
dc.titlepl
Developing a phantom for the positronium imaging evaluation
dc.title.journalpl
Acta Physica Polonica. B, Proceedings Supplement
dc.title.volumepl
4th Jagiellonian Symposium on Advances in Particle Physics and Medicine, Kraków, Poland, 10-15 July, 2022
dc.typepl
JournalArticle
dspace.entity.type
Publication
Affiliations

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