David J. Carlson, PhD

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The RefleXion linear accelerator utilizes a 6 MV FFF beam with a binary multi-leaf collimator and a pair of Y- jaws with clinical openings of 1 cm and 2 cm. The machine is equipped with a 16-slice on-board fan-beam CT and an on- board PET detector system. For...

To investigate the feasibility of three-dimensional fiducial localization using small-angle kV image pairs from adjacent projections as a time-efficient alternative to conventional orthogonal imaging, and to determine the minimum gantry angle separation.

To commission Standard Imaging Exradin W1 scintillator detector (W1) on RefleXIon PET-Linac system for small-field dosimetry in both image-guided radiotherapy (IGRT) and biology-guided radiotherapy (BgRT).

Stereotactic spinal treatments deliver a high radiation dose and utilize smaller target margins, on the order of 1 mm, to minimize dose to the spinal cord. Intrafraction tumor tracking is therefore essential to minimize dose outside of the target. A common ap...

Radiation pneumonitis (RP) remains a clinically significant dose-limiting toxicity in thoracic radiotherapy. Accurate RP prediction is challenging due to its multifactorial etiology and complex interactions among contributing factors. Although multimodal data...

The next-generation PET-based SCINTIX® Biology-guided radiotherapy (BgRT) X2 platform incorporates a four-time PET widened field of view (WFOV) and an anchor-point-tracking delivery algorithm (currently in development). These advancements are intended to impr...