Increasing X-ray to visible transduction performance of Gd2O3:Eu3+PVDF composites by PPO/POPOP addition

• Type: Article in International Scientific Journal
• Date: 2016

Authors

Oliveira, J (Author) Other; Martins, PM (Author) Other; Martins, P (Author) Other; Correia, V (Author) Other; Rocha, JG (Author) Other; Lanceros Mendez, S (Author) Other

Journal

Title: Composites Part B: Engineering

Vol. 91

Pages: 610-614

ISSN: 1359-8368

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 6 Citations

Scopus - 9 Citations

Other information

Authenticus ID: P-00K-89H

DOI: 10.1016/j.compositesb.2016.02.017

Abstract (EN): Polymer based scintillator composites have been produced by combining poly(vinylidene fluoride), PVDF, and Gd2O3:Eu3+ scintillator nanoparticles. Additionally, 2,5 dipheniloxazol (PPO) and (1,4-bis (2-(5-phenioxazolil))-benzol (POPOP) were introduced in the polymer matrix in order to improve visible light yield under x-ray irradiation. It is shown that addition of PPO and POPOP has no influence on the polymer structure, increases dielectric constant from similar to 7 to similar to 14, which is suitable for improving energy resolution, and increases in 40% the overall transduction performance of the composite without sacrificing its homogeneity and transparency. Thus, the developed Gd2O3:Eu3+/PPO/POPOP/PVDF composites are appropriate for large area X-ray radiation detectors.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5