Zobrazeno 1 - 10
of 227
pro vyhledávání: '"beamnrc"'
Autor:
Danial Seifi Makrani, Hassan Ali Nedaei, Ghazale Geraily, Alireza Khorami-Moghaddam, Nooshin Banaee, Hussam Jassim
Publikováno v:
Journal of Medical Physics, Vol 49, Iss 3, Pp 379-386 (2024)
Purpose: When exact information regarding the treatment head and initial electron beam is available, the Monte Carlo (MC) approach can properly simulate any linear accelerator. However, manufacturers seldom offer information such as the incident elec
Externí odkaz:
https://doaj.org/article/d11b16ec6fd84fea91a6c5dfb1289272
Autor:
Turki Almatani
Publikováno v:
Journal of Taibah University for Science, Vol 17, Iss 1 (2023)
The aim of this study is to investigate the effects of these Variance reduction techniques on photon fluence and dose calculation efficiency. Different VRTs available in the BEAMnrc code were used to investigate the simulation efficiency for a 6 MV p
Externí odkaz:
https://doaj.org/article/a8c69dafedfb426fa87c773c1700cd83
Publikováno v:
Journal of Taibah University for Science, Vol 16, Iss 1, Pp 300-307 (2022)
Objective: Modelling linear accelerator (linac) photon beams using the Monte Carlo (MC) technique is presently the most precise technique with which to calculate radiotherapy beam data. Complicated treatment plans can be achieved by using the Agility
Externí odkaz:
https://doaj.org/article/85b520c27c704650804f2fe3854127c4
Akademický článek
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Publikováno v:
Atom Indonesia, Vol 47, Iss 3, Pp 199-204 (2021)
In radiotherapy, high energy ionizing radiation, such as X-rays, gamma rays and electron beams,is used. The dose in the tissue is often approached with the dose in the medium of the body which is 80 % of human soft tissue. It is often difficult to de
Externí odkaz:
https://doaj.org/article/9d9e27ae49934b59ac338b9ac22a2e84
Publikováno v:
Âderna Fìzika ta Energetika, Vol 21, Iss 3, Pp 275-280 (2020)
Linear accelerators (Linac) are used in radiation therapy treatment and its technology improvement ensures high dosimetry quality that should be conserved for high radiotherapy efficiency. However, does the air gap between the exit window of Linac he
Externí odkaz:
https://doaj.org/article/c987f8e60df54ee5af9da6cde877dbc8
Publikováno v:
Âderna Fìzika ta Energetika, Vol 21, Iss 2, Pp 200-209 (2020)
The present work is focused on the study of the geometry and material of a beam modifier (jaws), which is crucial for Linac improvement by reducing secondary photons emergent from it. They have negative effects when the cancer was treated and especia
Externí odkaz:
https://doaj.org/article/dc17cd5b2299430b8685e834d4f3dc12
Autor:
Tayyeb Pourfallah, Mohammad Seyed Abousaeedi, Danial Seifi Makrani, Ehsan Mihandoust, Saeed Davoudian
Publikováno v:
Journal of Mazandaran University of Medical Sciences, Vol 29, Iss 182, Pp 41-49 (2020)
Background and purpose: Radiation therapy make an important contribution in the control and treatment of cancers. Lungs are the main organs at risk in esophageal cancer radiotherapy. Difference between the dose distribution due to the treatment plann
Externí odkaz:
https://doaj.org/article/7747e7d1a1c44fc2b042f615a5dc3e4d
Autor:
Turki Almatani
Publikováno v:
Journal of King Saud University: Science, Vol 33, Iss 4, Pp 101421- (2021)
Objective: Monte Carlo (MC) simulations are considered to be the most accurate form of algorithm for dose calculation. However, the main obstacle to using MC, especially in clinical routine, is the simulation time needed to gain results below a desir
Externí odkaz:
https://doaj.org/article/b8cae96901db482382ec73295a3eafb5
Autor:
Turki Almatani
Publikováno v:
Journal of King Saud University: Science, Vol 33, Iss 4, Pp 101406- (2021)
Objective: The Monte Carlo (MC) technique can accurately model any linear accelerator where accurate details about the treatment head and the incident electron beam have been provided. However, manufacturers generally do not provide such details as t
Externí odkaz:
https://doaj.org/article/d1f0ac1593ff48829b41db8d43a297ce