@inproceedings{5279df4272094f4fa6395a79e6261d07,
title = "Thickness uniformity and stability of amorphous selenium films on flexible substrates for indirect conversion x-ray detection",
abstract = "Amorphous selenium (a-Se) possesses unique features that have been leveraged for medical imaging applications. Previously, it was shown that having a soft interface with a-Se will reduce the stress generated from the creation of crystalline nucleus, prevent radiation-induced crystallization, and improve long-term stability of the device. The aim of this study is to develop a uniform thickness of a-Se on a flexible substrate, polyethylene terephthalate coated with indium tin oxide (ITO-PET), for future investigations of the effect of substate on stability of the a-Se against radiation-induced defects and long-term storage. In order to fabricate the a-Se-based detector, we have developed a dedicated thermal evaporator for a-Se deposition. The dependence of the source-to-substrate distance on film uniformity has been investigated. Experimentally, following modeling results, a-Se samples over a 2-inch diameter were deposited on ITOPET and thickness uniformity was compared to simulation.",
keywords = "Amorphous selenium, Crystallization, Flexible substrate, Indirect conversion, Photo-induced defects",
author = "Maryam Farahmandzadeh and Steven Marcinko and Davide Curreli and Shiva Abbaszadeh",
note = "Publisher Copyright: {\textcopyright} COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.; Medical Imaging 2021: Physics of Medical Imaging ; Conference date: 15-02-2021 Through 19-02-2021",
year = "2021",
doi = "10.1117/12.2581671",
language = "English (US)",
series = "Progress in Biomedical Optics and Imaging - Proceedings of SPIE",
publisher = "SPIE",
editor = "Hilde Bosmans and Wei Zhao and Lifeng Yu",
booktitle = "Medical Imaging 2021",
}