Results 51 to 60 of about 2,681 (192)

Evaluation of the TG-43 formalism for intraoperative radiotherapy dosimetry in glioblastoma treatment. [PDF]

Med Phys
Abstract Background Intraoperative radiation therapy (IORT) using the INTRABEAM system has shown promise in glioblastoma treatment. However, accurate dosimetry remains challenging due to the low‐energy photons used and the heterogeneity of tissues in the brain. Current clinical practice relies on the TARGIT method, but more robust approaches, including
Ayala Alvarez DS, Watson PGF, Popovic M, Heng VJ, Evans MDC, Panet-Raymond V, Seuntjens J.   +6 more
europepmc   +2 more sources

PENELOPE/PRIMO-calculated photon and electron spectra from clinical accelerators [PDF]

, 2019
Background: The availability of photon and electron spectra in digital form from current accelerators and Monte Carlo (MC) systems is scarce, and one of the packages widely used refers to linacs with a reduced clinical use nowadays.
Andreo, Pedro, Brualla, Lorenzo, Rodríguez, Miguel, Sempau Roma, Josep   +3 more
core   +2 more sources

Simulations of a Scintillator Compton Gamma Imager for Safety and Security

, 2009
We are designing an all-scintillator Compton gamma imager for use in security investigations and remediation actions involving radioactive threat material.
Hanna, D. S., MacLeod, A. M. L., Saull, P. R. B., Sinclair, L. E.   +3 more
core   +1 more source

egs++: Optimization of Simulation Transport Parameters

JIF (Jurnal Ilmu Fisika), 2023
MC transport parameters used are common to all egs++ applications. The effect of each transport parameter need to understand to optimize the simulation process. Therefore, the purpose of this study was to investigate the efficiency of egs++ simulation for
Sitti Yani
doaj   +1 more source

Search for the decay of nature's rarest isotope $^{\rm {180m}}$Ta [PDF]

, 2016
$^{\rm {180m}}$Ta is the rarest naturally occurring quasi-stable isotope and the longest lived metastable state which is known. Its possible decay via the $\beta^-$ or the electron capture channel has never been observed.
Hult, Mikael, Lehnert, Björn, Lutter, Guillaume, Zuber, Kai   +3 more
core   +2 more sources

Assessing the Effect of Directional Bremsstrahlung Splitting on the Output Spectra and Parameters Using BEAMnrc Monte Carlo Simulation Package

Biomedical Engineering and Computational Biology, 2022
Introduction: EGSnrc software package is one of the computational packages for Monte Carlo simulation in radiation therapy and has several subset codes.
Hamed Babapour, Somayeh Semyari, Masoumeh Yadollahi, Mehrsa Majdaeen, Razzagh Abedi-Firouzjah, Gholamreza Ataei   +5 more
doaj   +1 more source

First search for double-beta decay of 184Os and 192Os

, 2013
A search for double-beta decay of osmium has been realized for the first time with the help of an ultra-low background HPGe gamma detector at the underground Gran Sasso National Laboratories of the INFN (Italy).
Belli, P., Bernabei, R., Cappella, F., Cerulli, R., d'Angelo, S., Danevich, F. A., Di Marco, A., Incicchitti, A., Kovtun, G. P., Kovtun, N. G., Laubenstein, M., Poda, D. V., Polischuk, O. G., Shcherban, A. P., Tretyak, V. I.   +14 more
core   +1 more source

Feasibility study of in‐house second‐channel calibration of dual‐channel electrometers using a battery‐powered current source

Journal of Applied Clinical Medical Physics, Volume 27, Issue 3, March 2026.
Abstract Background An ionization chamber and electrometer allow measurement of the absorbed dose to water. A sensitivity comparison between electrometers is essential for quality control, and an efficient method is available to accurately measure the electrometer sensitivity coefficient without using a linear accelerator (linac).
Hayato Tsuno, Ruan Sasaki, Koji Sasaki, Kohei Nishi, Tae Ushikawa, Daisaku Goto, Yasuhiro Kawashima, Ririko Kosugi   +7 more
wiley   +1 more source

Validação de um modelo computacional de acelerador linear VARIAN CLINAC 2100 utilizando o código EGSnrc para utilização em dosimetria de pequenos campos.

Brazilian Journal of Radiation Sciences, 2018
Neste trabalho foi empregado o Método de Monte Carlo para a simulação de campos clínicos de radioterapia que serão posteriormente utilizados para a calibração de pequenos campos de radiocirurgia. O código de transporte de radiação utilizado foi o EGSnrc
Reginaldo Gonçalves Leão Jr, Rômulo Verdolin Sousa, Arno Heeren Oliveira, Hugo Lemos Leonardo Silva, Arnaldo Prata Mourão   +4 more
doaj   +1 more source

Comparison and validation of multiple detectors against monte carlo simulation for the use of small-field dosimetry

Journal of Medical Physics, 2022
Aim: The aim of this study was to compare the Exradin W2 scintillator, PTW microDiamond, IBA Razor Nano, and IBA Razor chamber detectors for small-field dose measurements and validate the measured data against the EGSnrc user code and observe the ...
Nazia Parveen, Prabhakar Ramachandran, Venkatakrishnan Seshadri, Ben Perrett, Andrew Fielding   +4 more
doaj   +1 more source