82 citations · 454 across the 30 of their papers we have counts for
12 papers · 1 filter
Fractal geometry-governed oxygen diffusion: Tumors vs. Normal Tissues
Neda Valizadeh, Robabeh Rahimi, Ramin Abolfath
{\bf Purpose}: To develop a geometry-governed diffusion framework that explains differential tissue response under FLASH ultra-high dose rate (UHDR) irradiation by explicitly accou…
A molecular dynamics simulation of the abrupt changes in the thermodynamic properties of water after formation of nano-bubbles / nano-cavities induced by passage of charged particles
Ramin Abolfath, Niayesh Afshordi, Sohrab Rahvar +6
We present a multi-scale formalism that accounts for the formation of nano-scale bubbles/cavities owing to a burst of water molecules after the passage of high energy charged parti…
A Monte Carlo simulation framework for investigating the effect of inter-track coupling on HO productions at ultra-high dose rates
Ramin Abolfath, Sedigheh Fardirad, Houda Kacem +2
Background: Lower production of HO in water is a hallmark of ultra-high dose rate (UHDR) compared to the conventional dose rate (CDR). However, the current computational mo…
Differential tissue sparing of FLASH ultra high dose rates: an {\it in-silico} study
Ramin Abolfath, Alexander Baikalov, Sohrab Rahvar +4
Purpose: To propose a theory for the differential tissue sparing of FLASH ultra high dose rates (UHDR) through inter-track reaction-diffusion mechanism. Methods: We calculate the t…
Modeling interspur interactions as a potential mechanism of the FLASH effect
Alexander Baikalov, Ramin Abolfath, Radhe Mohan +3
The mechanism responsible for the FLASH effect, normal tissue sparing by ultra-high dose rate (UHDR) irradiation with isoeffective tumor control compared to conventional dose rate…
The effect of non-ionizing excitations on the diffusion of ion species and inter-track correlations in FLASH ultra-high dose rate radiotherapy
Ramin Abolfath, Alexander Baikalov, Stefan Bartzsch +2
We present a microscopic mechanism that accounts for the outward burst of "cold" ion species (IS) in a high-energy particle track due to coupling with ''hot" non-ion species (NIS).…