Pair production tomography imaging (P2T)
A high-energy X-ray beam introduces the electron-positron pair through pair production and produces two time-coincident 511 keV annihilation photons. A 3D reconstruction of the event locations forms the pair production tomography imaging (P2T).
P2T demonstrates distinct imaging properties compared with CT. It is also a promising surrogate for in-vivo dosimetry.
Advanced treatment planning and delivery techniques
We develop optimization algorithms that explores new degrees of freedom in radiotherapy delivery
FLASH radiotherapy
A conceptual hardware and software design (ROAD) that enables X-ray FLASH radiotherapy (ultra-high-dose-rate radiotherapy).
CT reconstruction
Improving CT image quality by incorporating novel image denoisers as regularization term in the iterative reconstruction framework, using BM3D regularization, Plug and Play with BM3D, Plug and Play with CNN.
Dual-energy CT
Improving DECT material decomposition accuracy with integrated optimization framework