Stretchable scintillator composites for indirect X-ray detectors

• Type: Article in International Scientific Journal
• Date: 2018

Authors

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

Journal

Title: Composites Part B: Engineering

Vol. 133

Pages: 226-231

ISSN: 1359-8368

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 5 Citations

Scopus - 8 Citations

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6