Stretchable scintillator composites for indirect X-ray detectors

• Tipo: Artigo em Revista Científica Internacional
• Data: 2018

Autores

Oliveira, J (Autor) Outra; Correia, V (Autor) Outra; Costa, P (Autor) Outra; Francesko, A (Autor) Outra; Rocha, G (Autor) Outra; Lanceros Mendez, S (Autor) Outra

Revista

Título: Composites Part B: Engineering

Vol. 133

Páginas: 226-231

ISSN: 1359-8368

Editora: Elsevier

Indexação

ISI Web of Knowledge - 5 Citações

Scopus - 8 Citações

Outras Informações

ID Authenticus: P-00N-1N0

DOI: 10.1016/j.compositesb.2017.09.031

Abstract (EN): Flexible and stretchable materials are increasingly being investigated for future technological platforms, polymer based materials being the most suitable candidates for those emerging technologies. This work reports on polymer based scintillator composites based on the thermoplastic elastomer Styrene-Ethylene/Butadiene-Styrene (SEBS) and Gd2O3 :Eu3+ scintillator nanoparticles, to form a polymer-based flexible and stretchable material for X-ray indirect detectors. Further, visible light yield under X-ray irradiation was improved by the inclusion of 2,5 dipheniloxazol (PPO) and (1,4-bis (2-(5-phenioxazolil))-benzol (POPOP) within the polymer matrix. Together with high levels of stretchability, with deformations up to 100%, the films exhibit suitable performance with low mechanical hysteresis (less than 1.5 MJ/m(3) for cycles up to 100% of strain) and reproducibly such as a scintillator material for the conversion of X-ray radiation into visible radiation. The decrease of just similar to 13% of the X-ray radiation into visible light upon stretching up to 100% is attributed to a reduction of the effective filler concentration and proves the suitability of the developed materials for large area and stretchable X-ray radiation detectors.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6