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A 2×2 array of EMCCD-based solid state x-ray detectors
P Sharma1, S N Swetadri Vasan, A H Titus
1Electrical Engineering Department and Toshiba Stroke Research Center at University at Buffalo, The State University of New York, Buffalo, NY 14260-1920, USA. psharma4@buffalo.edu
A novel solid-state X-ray imaging system using electron multiplying charge-coupled devices (EMCCDs) offers high resolution for medical fluoroscopy and angiography. This advanced detector achieves 9 line pairs/mm resolution and real-time video capabilities.
Area of Science:
- Medical Imaging Technology
- Solid-State Detectors
- X-ray Imaging Systems
Background:
- Current medical imaging systems face limitations in resolution and real-time performance.
- Advancements in detector technology are crucial for improved diagnostic accuracy in fluoroscopy and angiography.
Purpose of the Study:
- To design and develop a new solid-state X-ray imaging system.
- To evaluate the performance of a 2x2 array of electron multiplying charge-coupled devices (EMCCDs) for medical imaging applications.
Main Methods:
- Utilized four 1024x1024 pixel EMCCDs with 13x13 µm pixel size.
- Integrated EMCCDs with fiber optic plates (FOPs) and CsI(Tl) scintillators via fiber optic tapers (FOTs).
- Configured the system for fluoroscopic and angiographic imaging, including region-of-interest (ROI) capabilities.
Main Results:
- Achieved 9 line pairs/mm resolution at 15 frames/sec.
- Provided real-time live video at 30 frames/sec with optional binning.
- Total field of view (FOV) of 8.45 cm x 8.45 cm.
Conclusions:
- The developed solid-state X-ray imaging system demonstrates high resolution and real-time performance suitable for medical applications.
- The modular design allows for flexible region-of-interest imaging.
- This EMCCD-based system represents a significant advancement in fluoroscopic and angiographic imaging technology.
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