Our research topics focuses on, but are not limited to, radiation detectors and medical imaging systems with focus on nuclear medicine, x-ray and homeland security applications.
Radiation detector, system design and applications:
- High performance (high resolution, timing resolution and depth-of-interaction capable) detector design and prototyping for nuclear medicine
- Signal processing, Monte Carlo simulation and imaging reconstruction
- Pulse Shape Discrimination (Neutron, Gamma-ray, Beta particle)
- High speed x-ray imaging system for electronic component inspection
Application specific integrated circuit (ASIC) front-end electronics (analog and mixed signal) for radiation detectors:
- CMOS front end readout circuits such as preamplifier, shaping amplifier and analog-digital converter for high speed photosensors (avalanche photodiode and silicon photomultiplier) and semiconductor radiation detector (CdTe, CZT, etc).
- [NEW] radiation hardened (rad-hard) CMOS circuits employing radiation-hardening-by-design (RHBD) techniques for extreme environment such as critical nuclear power plant failure or space exploration.
[NEW] Growth and search for new inorganic single crystal scintillators for nuclear medicine and radiation detectors
- Crystal growth by several techniques such as Czochralski method(Cz), Micro-pulling-down(μ-PD) and so on.
- Developed and modified growth process focused on specific characters for initial materials and purity, dimensions, optical homogeneity, crystallographic defects.
- Much interests in developing new scintillation materials which can be used for x-ray, γ-ray detection, medical devices, nuclear physics and so forth