Results 91 to 100 of about 1,765 (182)

Development of a deformable dosimetric phantom to verify dose accumulation algorithms for adaptive radiotherapy

Journal of Medical Physics, 2016
Adaptive radiotherapy may improve treatment outcomes for lung cancer patients. Because of the lack of an effective tool for quality assurance, this therapeutic modality is not yet accepted in clinic.
Hualiang Zhong, Jeffrey Adams, Carri Glide-Hurst, Hualin Zhang, Haisen Li, Indrin J Chetty   +5 more
doaj   +1 more source

Comparison of the radial dose function in the source transversal axis, which was obtained for the BEBIG ⁶⁰Co HDR source using the cavity EGSnrc Monte Carlo code.

, 2015
Comparison of the radial dose function in the source transversal axis, which was obtained for the BEBIG 60Co HDR source using the cavity EGSnrc Monte Carlo code.
Luciana Tourinho Campos (801275), Carlos Eduardo Veloso de Almeida (801276)   +1 more
core   +1 more source

Computational analysis of 'Dose/Collision Kerma' relationship and lateral boundary in Stereotatic circular fields using EGSnrc. [PDF]

, 2016
Objectives: This work aimed to obtain data from small fields of X-rays that evidence of the hypotheses cited as cause of difficulties for the dosimetry of these. For this purpose, the verification of compatibility between the dosimetric boundary of field
Arno Heeren de Oliveira, Hugo Lemos Leonardo Silva, Reginaldo Gonçalves Leão Junior, Arnaldo Prata Mourão, Reginaldo Gonçalves Leão, Rômulo Verdolin de Sousa   +5 more
core   +1 more source

The simulation of a linear accelerator using Monte Carlo method with EGSnrc Program

Science and Technology Development Journal - Natural Sciences, 2019
The Monte Carlo method is considered to be the most accurate algorithm for dose calculation in radiotherapy. Linear accelerator accurate simulation is required as a prior condition for Monte Carlo dose calculation algorithm. In this study, the 6 MV photon beams from a Siemens Primus Linear Accelerator (LINAC) M5497 at the Dong Nai General Hospital was ...
Son Dong Nguyen, Loan Thi Hong Truong, Oanh Thi Luong, Tuan Duc Hoang, Tai Thanh Duong   +4 more
openaire   +2 more sources

Practical and clinical considerations in Cobalt-60 tomotherapy

Journal of Medical Physics, 2009
Cobalt-60 (Co-60) based radiation therapy continues to play a significant role in not only developing countries, where access to radiation therapy is extremely limited, but also in industrialized countries.
Joshi Chandra, Dhanesar Sandeep, Darko Johnson, Kerr Andrew, Vidyasagar P, Schreiner L   +5 more
doaj  

Ανάπτυξη εξειδικευμένου κώδικα χρήστη για υπολογιστική δοσιμετρία Monte Carlo προσομοίωσης με χρήση του EGSnrc

, 2017
Λαμβάνοντας υπόψη την απαίτηση για υψηλή ακρίβεια στη χορήγηση δόσης στην ακτινοθεραπεία και ειδικά στη στερεοτακτική ακτινοχειρουργική, η χρήση τεχνικών Monte Carlo στον υπολογισμό της δόσης με σκοπό τη μείωση της συνεισφοράς του στη συνολική ...
Λογοθέτης Ανδρέας, Logothetis Andreas   +1 more
core   +1 more source

Reconstruction of 6 MV medical linear accelerator photon energy spectrum based on artificial neural network

四川大学学报. 自然科学版
Artificial Neural Network （ANN） possess robust capabilities for solving linear equations and performing large-scale computations.In radiation therapy， the accuracy of incident photon beam energy spectrum directly affects the precision of dose ...
LI Tian-Hang, LIU Wei, WANG Shi-Lu, WU Zhang-Wen, GOU Cheng-Jun   +4 more
doaj  

Dose enhancement of nanogold for prostate radiation: Monte Carlo simulation using the ICRP voxel computational male phantom

Journal of Taibah University for Science
Using a male ICRP voxel computational phantom, Monte Carlo simulations were performed to estimate the dose enhancement ratio (DER) in prostate radiation for 6 and 10 MV photon energy.
Wafa M. Al-Saleh, Turki Almatani
doaj   +1 more source

Comparison of Geant4 with EGSnrc for Simulation of Gamma-Radiation Detectors Based on Semi-Insulating Materials

, 2011
?????????????????????? ?????????????????????? ?????????????????? ?????????????? ???????????????????????????????? ???????????????????????????? ??????????-?????????????? ?? GEANT4 v.4.9.4 ?????? ?????????????? ?????????????? ?????????????? ???????????????????? ???? ???????????? ?????????????????????????????? ????????????????????. GEANT4 ??????????????????
Skrypnyk, A.I., Zakharchenko, A.A., Khazhmuradov, M.A.   +2 more
openaire   +3 more sources

Characterisation of a 137Cs monoenergetic gamma radiation source used for instrument calibration at the Environmental Protection Agency using Monte Carlo simulations in EGSnrc

, 2023
The Environmental Protection Agency employs an instrument calibration service for the whole of Ireland which is regularly used to calibrate radiation monitoring instrumentation such as survey meters, contamination monitors and electronic personal ...
Walsh, Joshua
core