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Development of a large-area CMOS-based detector for real-time x-ray imaging
| Content Provider | Semantic Scholar |
|---|---|
| Author | Heo, Sung Kyn Park, Sung Kyu Robin Hwang, Sung Ha Im, Dong Ak Kosonen, Jari Yun, Seungman Kim, Ho Kyung |
| Copyright Year | 2010 |
| Abstract | Complementary metal-oxide-semiconductor (CMOS) active pixel sensors (APSs) with high electrical and optical performances are now being attractive for digital radiography (DR) and dental cone-beam computed tomography (CBCT). In this study, we report our prototype CMOS-based detectors capable of real-time imaging. The field-of-view of the detector is 12 × 14.4 cm. The detector employs a CsI:Tl scintillator as an x-ray-to-light converter. The electrical performance of the CMOS APS, such as readout noise and full-well capacity, was evaluated. The x-ray imaging characteristics of the detector were evaluated in terms of characteristic curve, pre-sampling modulation transfer function, noise power spectrum, detective quantum efficiency, and image lag. The overall performance of the detector is demonstrated with phantom images obtained for DR and CBCT applications. The detailed development description and measurement results are addressed. With the results, we suggest that the prototype CMOS-based detector has the potential for CBCT and real-time x-ray imaging applications. |
| File Format | PDF HTM / HTML |
| DOI | 10.1117/12.844582 |
| Volume Number | 7622 |
| Alternate Webpage(s) | http://bml.pusan.ac.kr/Publication/PDF/IntCon/057_spie_10_v7622_p76223T_Heo.pdf |
| Alternate Webpage(s) | https://doi.org/10.1117/12.844582 |
| Journal | Medical Imaging |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
