Results 1 to 10 of about 757 (155)

Study of efficiency in five-field and field-by-field intensity modulated radiation therapy (IMRT) plan using DOSXYZnrc Monte Carlo code [PDF]

Reports of Practical Oncology and Radiotherapy, 2020
Implementation of a modern treatment technique, such as IMRT, has been improved. In line with that, Monte Carlo (MC) simulations of this technique require the ability of complex beam configurations modelling with respect to the patient. The source 20 DOSXYZnrc with the dynamic and step and shoot technique can be used to simulate the modality.
Freddy Haryanto, Sitti Yani, Mohamad Fahdillah Rhani   +2 more
exaly   +6 more sources

Deep learning‐based dose prediction for low‐energy electron beam superficial radiotherapy [PDF]

Precision Radiation Oncology
Background Accurate surface dose calculation is crucial in superficial low‐energy electron beam radiotherapy owing to shallow treatment depths and the risk of skin toxicity.
Jialin Huang, Zhitao Dai, Shuai Hu, Yuanchun Ye, Yuling Chen, Ming Li, Tianye Niu, Jinfen Zheng, Yongsheng Huang, Yuanjie Bi   +9 more
doaj   +3 more sources

Monte carlo simulation of siemens oncor linear accelerator with beamnrc and dosxyznrc code

Journal of Medical Signals and Sensors, 2013
The Monte Carlo method is the most accurate method for simulation of radiation therapy equipment. The linear accelerators (linac) are currently the most widely used machines in radiation therapy centers.
Keyvan Jabbari, Hossein Saberi Anvar, Mohammad Bagher Tavakoli, Alireza Amouheidari   +3 more
doaj   +4 more sources

Evaluation of Thyroid Absorption Dose During Chest Imaging by Monte Carlo Simulation (DOSXYZnrc)

Armaghane Danesh Bimonthly Journal, 2021
Background & aim: Chest radiography is one of the most common X-ray imaging procedures performed worldwide. During this process, in addition to the thorax, other tissues, including the thyroid, are exposed to radiation.
Zaker Salehi
exaly   +4 more sources

Validation of Monte Carlo-based calculations for megavolt electron beams for IORT and FLASH-IORT [PDF]

Heliyon, 2022
In Intra-Operative Radiation Therapy (IORT) the tumour site is surgically exposed and normal tissue located around the tumour may be avoided. Electron applicators would require large surgical incisions; therefore, the preferred mechanism for beam ...
Graeme L. Lazarus, Déte van Eeden, Frederik CP. du Plessis   +2 more
doaj   +2 more sources

Monte Carlo Simulation for the Radixact™ Tomotherapy Linac Using EGSnrc [PDF]

Journal of Medical Physics
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 electron
Danial Seifi Makrani, Hassan Ali Nedaei, Ghazale Geraily, Alireza Khorami-Moghaddam, Nooshin Banaee, Hussam Jassim   +5 more
doaj   +2 more sources

A Novel GPU-based Fast Monte Carlo Photon Dose Calculating Method for Accurate Radiotherapy Treatment Planning [PDF]

Journal of Biomedical Physics and Engineering, 2020
Background: An accurate and fast radiation dose calculations method is the main part of treatment planning for successful radiation therapy. Objective: This work aimed to create a novel GPU-based fast Monte Carlo Photon Dose Code (MCPDC) as a fast and ...
M Karbalaee, D Shahbazi-Gahrouei, M B Tavakoli   +2 more
doaj   +2 more sources

Determination of the small-field output factor for 6 MV photon beam using EGSnrc Monte Carlo [PDF]

Journal of Medical Physics, 2022
Accuracy of ionization chamber (IC) to measure the scatter output factor (Scp) of a linear accelerator (linac) is crucial, especially in small field (
K W Chuah, M Z Abdul Aziz, J Jayamani
doaj   +2 more sources

Practical Dosimetry Considerations for Small MLC-Shaped Electron Fields at 60 cm SSD [PDF]

Journal of Biomedical Physics and Engineering, 2022
Superficial tumours can be treated with megavoltage electron beams. The underlying tissue can be spared through the steep dose fall-off gradients over a range of a few centimetres.An accurate Monte Carlo model for an Elekta Precise was determined and ...
Déte Van Eeden, Karl N. Sachse, Freek C.P. Du Plessis   +2 more
doaj   +2 more sources

Enhancement of the EGSnrc code egs_chamber for fast fluence calculations of charged particles [PDF]

Zeitschrift für Medizinische Physik, 2022
Purpose: Simulation of absorbed dose deposition in a detector is one of the key tasks of Monte Carlo (MC) dosimetry methodology. Recent publications (Hartmann and Zink, 2018; Hartmann and Zink, 2019; Hartmann et al., 2021) have shown that knowledge of ...
Thomas Failing, Günther H. Hartmann, Frank W. Hensley, Boris Keil, Klemens Zink   +4 more
doaj   +2 more sources