Results 21 to 30 of about 3,468 (205)

Microdosimetry and Dose-Averaged LET Calculations of Protons in Liquid Water: A Novel Geant4-DNA Application

Frontiers in Physics, 2021
The spatial distribution of energy deposition events is an essential aspect in the determination of the radiobiological effects of ionizing radiation at the cellular level.
Anna Baratto-Roldán, Anna Baratto-Roldán, Alejandro Bertolet, Alejandro Bertolet, Giorgio Baiocco, Alejandro Carabe, Miguel Antonio Cortés-Giraldo   +6 more
doaj   +1 more source

Human Skin Model From 15 GHz to 110 GHz. [PDF]

Bioelectromagnetics
ABSTRACT Compliance testing of wireless devices with absorbed power density (APD) limits requires body models that conservatively reproduce the absorption characteristics of human skin. Previous studies indicate that impedance‐matching effects are caused by the stratum corneum (SC) layer.
Christ A, Aeschbacher A, Tarigan B, Chitnis N, Fallahi A, Kühn S, Capstick M, Kuster N.   +7 more
europepmc   +2 more sources

Confocal Microscopy Improves 3D Microdosimetry Applied to Nanoporation Experiments Targeting Endoplasmic Reticulum

Frontiers in Bioengineering and Biotechnology, 2020
In the last years, microdosimetric numerical models of cells including intracellular compartments have been proposed, aiming to investigate the poration induced by the application of nanosecond pulsed electric fields (nsPEFs). A limitation of such models
Annalisa De Angelis, Annalisa De Angelis, Agnese Denzi, Caterina Merla, Frank M. Andre, Lluis M. Mir, Francesca Apollonio, Francesca Apollonio, Micaela Liberti, Micaela Liberti   +9 more
doaj   +1 more source

Fluorescent nuclear track detectors for alpha radiation microdosimetry

Radiation Oncology, 2018
Background While alpha microdosimetry dates back a couple of decades, the effects of localized energy deposition of alpha particles are often still unclear since few comparative studies have been performed.
J. J. M. Kouwenberg, H. T. Wolterbeek, A. G. Denkova, A. J. J. Bos   +3 more
doaj   +1 more source

A Novel Hybrid Microdosimeter for Radiation Field Characterization Based on the Tissue Equivalent Proportional Counter Detector and Low Gain Avalanche Detectors Tracker: A Feasibility Study

Frontiers in Physics, 2021
In microdosimetry, lineal energies y are calculated from energy depositions ϵ inside the microdosimeter divided by the mean chord length, whose value is based on geometrical assumptions on both the detector and the radiation field.
M. Missiaggia, M. Missiaggia, M. Missiaggia, E. Pierobon, M. Castelluzzo, A. Perinelli, F. Cordoni, F. Cordoni, M. Centis Vignali, G. Borghi, G. Borghi, E. V. Bellinzona, E. V. Bellinzona, E. Scifoni, F. Tommasino, F. Tommasino, V. Monaco, L. Ricci, L. Ricci, M. Boscardin, M. Boscardin, Chiara La Tessa, Chiara La Tessa   +22 more
doaj   +1 more source

Silicon 3D Microdosimeters for Advanced Quality Assurance in Particle Therapy

Applied Sciences, 2021
The Centre for Medical Radiation Physics introduced the concept of Silicon On Insulator (SOI) microdosimeters with 3-Dimensional (3D) cylindrical sensitive volumes (SVs) mimicking the dimensions of cells in an array. Several designs of high-definition 3D
Linh T. Tran, David Bolst, Benjamin James, Vladimir Pan, James Vohradsky, Stefania Peracchi, Lachlan Chartier, Emily Debrot, Susana Guatelli, Marco Petasecca, Michael Lerch, Dale Prokopovich, Željko Pastuović, Marco Povoli, Angela Kok, Taku Inaniwa, Sung Hyun Lee, Naruhiro Matsufuji, Anatoly B. Rosenfeld   +18 more
doaj   +1 more source

Computation of microdosimetric distributions for small sites [PDF]

, 1977
Object of this study is the computation of microdosimetric functions for sites which are too small to permit experimental determination of the distributions by Rossi-counters.
A. M. Kellerer, A. M. Kellerer, A. M. Kellerer, A. M. Kellerer, D. C. Hodges, D. Chmelevsky, D. Chmelevsky, D. E. Lea, H. G. Paretzke, H. G. Paretzke, H. H. Rossi, H. H. Rossi, H. H. Rossi, H. H. Rossi, H. H. Rossi, ICRU, J. P. Patau, M. Inokuti, M. Terrissol, U. Fano, W. A. Glass, W. E. Wilson, Y. K. Kim   +22 more
core   +1 more source

Lineal Energy of Proton in Silicon by a Microdosimetry Simulation

Applied Sciences, 2021
Single event upset, or Single Event Effect (SEE) is increasingly important as semiconductor devices are entering into nano-meter scale. The Linear Energy Transfer (LET) concept is commonly used to estimate the rate of SEE.
Yueh Chiang, Cher Ming Tan, Chuan-Jong Tung, Chung-Chi Lee, Tsi-Chian Chao   +4 more
doaj   +1 more source

Bridging Microdosimetry and Macrodosimetry: A Comparative Review of Computational Approaches [PDF]

Journal of Radiation Protection and Research
Microdosimetry does not simply refer to dosimetry with small targets, but rather to dosimetry that accounts for the stochastic nature of energy deposition.
Tatsuhiko Sato
doaj   +1 more source

Predicting the Biological Effects of Human Salivary Gland Tumour Cells for Scanned ⁴He-, ¹²C-, ¹⁶O-, and ²⁰Ne-Ion Beams Using an SOI Microdosimeter

Applied Sciences, 2022
Experimental microdosimetry along with the microdosimetric kinetic (MK) model can be utilized to predict the biological effects of ions. To predict the relative biological effectiveness (RBE) of ions and the survival fraction (SF) of human salivary gland
Sung Hyun Lee, Kota Mizushima, Shunsuke Yonai, Shinnosuke Matsumoto, Hideyuki Mizuno, Taku Nakaji, Ryosuke Kohno, Yoshiyuki Iwata, Toshiyuki Shirai, Vladimir Pan, Angela Kok, Marco Povoli, Linh T. Tran, Anatoly B. Rosenfeld, Masao Suzuki, Taku Inaniwa   +15 more
doaj   +1 more source