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Fabrication of large-area photonic crystal-modified X-ray scintillator imager for optical coding imaging.
Opt Express ; 32(6): 8877-8886, 2024 Mar 11.
Article em En | MEDLINE | ID: mdl-38571134
ABSTRACT
The limited pattern area of periodic nanostructures limits the development of practical devices. This study introduces an X-ray interference lithography (XIL) stitching technique to fabricate a large-area (1.5 cm × 1.5 cm) two-dimensional photonic crystal (PhC) on the YAG Ce scintillator, which functions as an encoder in a high numerical aperture optical encoding imaging system to effectively capture high-frequency information. An X-ray imaging experiment revealed a substantial 7.64 dB improvement in the signal-to-noise ratio (SNR) across a large field of view (2.6 mm × 2.6 mm) and achieved comparable or superior image quality with half the exposure dose. These findings have significant implications for advancing practical applications of X-ray imaging.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Opt Express Assunto da revista: OFTALMOLOGIA Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Opt Express Assunto da revista: OFTALMOLOGIA Ano de publicação: 2024 Tipo de documento: Article