Dual-energy CT-based stopping power prediction for dental materials in particle therapy.
Sign Up to like & getrecommendations! Published in 2023 at "Journal of applied clinical medical physics"
DOI: 10.1002/acm2.13977
Abstract: Radiotherapy with protons or light ions can offer accurate and precise treatment delivery. Accurate knowledge of the stopping power ratio (SPR) distribution of the tissues in the patient is crucial for improving dose prediction in… read more here.
Keywords: restoration; dental materials; particle therapy; energy ... See more keywords
Error on the stopping power ratio of ERKODENT's mouthpiece for head and neck carbon ion radiotherapy treatment
Sign Up to like & getrecommendations! Published in 2023 at "Journal of Applied Clinical Medical Physics"
DOI: 10.1002/acm2.13987
Abstract: Abstract The errors on the stopping power ratio (SPR) of mouthpiece samples from ERKODENT were evaluated. Erkoflex and Erkoloc‐pro from ERKODENT and samples that combined Erkoflex and Erkoloc‐pro were computed tomography (CT)‐scanned using head and… read more here.
Keywords: mouthpiece; beam; error; stopping power ... See more keywords
Reassessment of stopping power ratio uncertainties caused by mean excitation energies using a water‐based formalism
Sign Up to like & getrecommendations! Published in 2018 at "Medical Physics"
DOI: 10.1002/mp.12949
Abstract: Purpose In proton therapy planning, the accuracy of the Stopping Power Ratios (SPR) calculated in the stoichiometric CT calibration is affected by, among others, uncertainties on the mean excitation energies (I‐values) of human tissues and… read more here.
Keywords: mean excitation; uncertainty; water; stopping power ... See more keywords
Technical Note: Implications of using EGSnrc instead of EGS4 for extracting electron stopping powers from measured energy spectra.
Sign Up to like & getrecommendations! Published in 2020 at "Medical physics"
DOI: 10.1002/mp.14567
Abstract: PURPOSE NRC Report PIRS 0626 (https://doi.org/10.4224/40000364) describes how measured electron energy deposition spectra can be used to determine the electronic stopping power. The stopping power is obtained by comparing measured spectra with spectra calculated using… read more here.
Keywords: energy; stopping power; stopping powers; electron ... See more keywords
Correlation Effects in the Stopping Power of Multiply Charged Ions
Sign Up to like & getrecommendations! Published in 2018 at "Russian Physics Journal"
DOI: 10.1007/s11182-018-1240-x
Abstract: Corrections to polarization losses of the energy of multiply charged ions in condensed media, caused by recharge processes, are considered. Charge fluctuations lead to an additional correlation contribution to the stopping power of an ion.… read more here.
Keywords: multiply charged; stopping power; correlation; correlation effects ... See more keywords
Effect of chemical disorder on the electronic stopping of solid solution alloys
Sign Up to like & getrecommendations! Published in 2020 at "Acta Materialia"
DOI: 10.1016/j.actamat.2020.06.061
Abstract: Abstract The electronic stopping power of nickel-based equiatomic solid solutions alloys NiCr, NiFe and NiCo for protons and alpha projectiles is investigated in detail using real-time time-dependent density functional theory over a wide range of… read more here.
Keywords: stopping power; electronic stopping; effect; disorder ... See more keywords
Pseudomagnetic field modulation of stopping power for a charged particle moving above graphene
Sign Up to like & getrecommendations! Published in 2018 at "Physics of Plasmas"
DOI: 10.1063/1.5039588
Abstract: We use a linearized two-component hydrodynamic model to study the wake potential and stopping power of electrons in a strained graphene sheet with a charged particle moving above it. The self-consistent numerical solution indicates the… read more here.
Keywords: pseudomagnetic field; modulation; stopping power; power ... See more keywords
Experimental verification of stopping-power prediction from single- and dual-energy computed tomography in biological tissues.
Sign Up to like & getrecommendations! Published in 2018 at "Physics in medicine and biology"
DOI: 10.1088/1361-6560/aaa1c9
Abstract: An experimental setup for consecutive measurement of ion and x-ray absorption in tissue or other materials is introduced. With this setup using a 3D-printed sample container, the reference stopping-power ratio (SPR) of materials can be… read more here.
Keywords: energy; error; stopping power; tissue ... See more keywords
Ex vivo validation of a stoichiometric dual energy CT proton stopping power ratio calibration.
Sign Up to like & getrecommendations! Published in 2018 at "Physics in medicine and biology"
DOI: 10.1088/1361-6560/aaae91
Abstract: A major source of uncertainty in proton therapy is the conversion of Hounsfield unit (HU) to proton stopping power ratio relative to water (SPR). In this study, we measured and quantified the accuracy of a… read more here.
Keywords: stopping power; proton; calibration; proton stopping ... See more keywords
Stopping power of cluster ions in a free-electron gas from partial-wave analysis
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review A"
DOI: 10.1103/physreva.98.062716
Abstract: We are indebted to the Brazilian agencies CNPq and FAPERGS for the partial support of this research project. This study was financed in part by the Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior—Brasil (CAPES)—Finance… read more here.
Keywords: ions free; electron gas; power cluster; stopping power ... See more keywords
Stopping power of water for carbon ions with energies in the Bragg peak region.
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review E"
DOI: 10.1103/physreve.102.062418
Abstract: The stopping power of liquid water was measured for carbon ions with energies in the Bragg peak region using the inverted Doppler shift attenuation method. Among the semiempirical data, the results of this work agree… read more here.
Keywords: water; stopping power; carbon ions; power water ... See more keywords