A 512×256 TFT-Based Image Array Sensor with High Sensitivity, High Frame Rate and Wide Dynamic Range for Industrial Soft X-Ray Detection
This work presents a novel active pixel sensor (APS) design for soft X-ray flat panel detectors (FPDs) intended for non-destructive testing (NDT) applications that require high sensitivity, a wide dynamic range, and fast imaging capabilities. Unlike conventional passive pixel sensor (PPS), this design employs dual-gate thin film transistor (TFT) operating in the subthreshold region to compress and amplify optical signals, thereby expanding both detection limit and range. The array features randomly-accessible capabilities, achieving a frame rate of 88fps, making it as a promising candidate for real-time in-line inspection applications.
Authors
- Hongning Xie (ORCID: https://orcid.org/0000-0002-1705-1328)
- Weikang Yan (ORCID: https://orcid.org/0009-0000-6634-8040)
- Chao Gao (ORCID: https://orcid.org/0000-0001-7205-2174)
- Jun Chen (ORCID: https://orcid.org/0000-0003-4272-2653)
- Song Kang (ORCID: https://orcid.org/0009-0008-7495-9704)
- Kai You Wang (ORCID: https://orcid.org/0000-0002-6170-4744)
- Qi Liu (ORCID: https://orcid.org/0000-0003-3067-8333)
- Xianming Li (ORCID: https://orcid.org/0000-0002-9303-9769)
Institutions
- Sun Yat-sen University (CN)
Publication Details
- Published
- 2025-03-09
- DOI
- https://doi.org/10.1109/edtm61175.2025.11041070
- Primary Topic
- CCD and CMOS Imaging Sensors
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- National Key Research and Development Program of China