Caron J, Feugeas J-L, Dubroca B, Kantor G, Dejean C, Birindelli G, Pichard T, Nicolaï P, d'Humières E, Frank M, Tikhonchuk V
CELIA Centre des Lasers Intenses et Applications, University of Bordeaux CNRS CEA, Talence F-33400, France; Department of Radiotherapy, Institut Bergonie, Comprehensive Cancer Center, Bordeaux F-33076, France.
CELIA Centre des Lasers Intenses et Applications, University of Bordeaux CNRS CEA, Talence F-33400, France.
Phys Med. 2015 Dec;31(8):912-921. doi: 10.1016/j.ejmp.2015.07.148.
A new deterministic method for calculating the dose distribution in the electron radiotherapy field is presented. The aim of this work was to validate our model by comparing it with the Monte Carlo simulation toolkit, GEANT4. A comparison of the longitudinal and transverse dose deposition profiles and electron distributions in homogeneous water phantoms showed a good accuracy of our model for electron transport, while reducing the calculation time by a factor of 50. Although the Bremsstrahlung effect is not yet implemented in our model, we propose here a method that solves the Boltzmann kinetic equation and provides a viable and efficient alternative to the expensive Monte Carlo modeling.
本文提出了一种用于计算电子放射治疗场剂量分布的新确定性方法。这项工作的目的是通过将我们的模型与蒙特卡罗模拟工具包GEANT4进行比较来验证该模型。对均匀水模体中纵向和横向剂量沉积剖面以及电子分布的比较表明，我们的电子输运模型具有良好的准确性，同时计算时间减少了50倍。虽然我们的模型尚未考虑轫致辐射效应，但我们在此提出一种求解玻尔兹曼动力学方程的方法，为昂贵的蒙特卡罗建模提供了一种可行且高效的替代方案。
