| Autor: |
Peter M. Levine, Christopher C. Scott, Abdallah El-Falou, Alireza Parsafar, Karim S. Karim |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
2015 IEEE International Electron Devices Meeting (IEDM). |
| DOI: |
10.1109/iedm.2015.7409803 |
| Popis: |
We demonstrate measured X-ray dose efficiency results from a 5.6-μm × 6.25-μm pixel-pitch direct-conversion amorphous selenium/CMOS hybrid X-ray imager. Compared to existing scintillator-based imagers, our approach enables up to 100x gains in DQE at spatial frequencies of 20–60 cycles/mm, which could radically accelerate bioengineering research. The measured MTF is 50% at 32 cycles/mm, corresponding to a 16-μm effective object size. We also demonstrate a MTF model which confirms experimental results with an RMS error of 0.02. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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