Development of a true 14.8um pixel resolution intraoral sensors for dental x-ray imaging

Seungman Yun; Ibrahim Hany; Seunghyeon Lee; Carter Williamson; Wonjun Lee; Kangmin Hwang; Hoseok Lee; Jiuk Kim; Jaejeong Seo

doi:10.1117/12.3006882

1 April 2024 Development of a true 14.8um pixel resolution intraoral sensors for dental x-ray imaging

Seungman Yun, Ibrahim Hany, Seunghyeon Lee, Carter Williamson, Wonjun Lee, Kangmin Hwang, Hoseok Lee, Jiuk Kim, Jaejeong Seo

Author Affiliations +

Proceedings Volume 12925, Medical Imaging 2024: Physics of Medical Imaging; 1292515 (2024) https://doi.org/10.1117/12.3006882
Event: SPIE Medical Imaging, 2024, San Diego, California, United States

Abstract

We exploit the development of a direct conversion intraoral sensor (IOS) utilizing a novel material, Perovskite (PV), employing a CMOS (Complementary metal-oxide-semiconductor) readout array with a pixel pitch of 14.8um for dental x-ray imaging. A 100um-thick Perovskite film was fabricated onto a CMOS readout array using a powder-based LTVAC (low-temperature and vacuum-assisted crystallization) process developed in this study. Fundamental x-ray imaging characteristics were assessed in terms of MTF (modulation transfer function) and DQE (detective quantum efficiency) and compared with a CsI-based commercial IOS using sample images under dental x-ray spectrum. The developed PV-based IOS demonstrated >20% MTF at the 33.8 lp/mm Nyquist frequency of 14.8um pixel device and superior DQE performance above a spatial frequency of 9 lp/mm, offering enhanced x-ray imaging capabilities compared to CsI-based indirect conversion commercial IOS products.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Seungman Yun, Ibrahim Hany, Seunghyeon Lee, Carter Williamson, Wonjun Lee, Kangmin Hwang, Hoseok Lee, Jiuk Kim, and Jaejeong Seo "Development of a true 14.8um pixel resolution intraoral sensors for dental x-ray imaging", Proc. SPIE 12925, Medical Imaging 2024: Physics of Medical Imaging, 1292515 (1 April 2024); https://doi.org/10.1117/12.3006882

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available