Overview
Geant4 is a versatile simulation platform enabling detailed modeling of radiation in medical scenarios, from cellular interactions to entire radiotherapy treatment rooms. Its open source nature also allows users to tailor it to their specific research needs.
Modeling x-ray and particle therapy treatment, modeling a patient geometry based on CT images, score dose, fluence, etc., saving and replay a phase space, providing advanced graphics, and is fully four-dimensional (4D) to handle variations in beam delivery and patient geometry during treatment.
Project 1: Simulation of Positron Emitted Tomography system.
The support of gamma detection are scintillating crystals. A small number of such crystals are optically grouped in a matrix of crystals. Crystals are circularly arranged to form a ring. Few rings make up the full detector (gamma camera). This is done by positioning Crystals in Ring with an appropriate rotation matrix. Several copies of Ring are then placed in the full detector. The head of a patient is schematized as a homogeneous cylinder of brain tissue, placed at the center of full detector.
Figure 1. Positron Emitted Tomography system.
Project 2: Gamma therapy simulation.
Electron beam of 50 MeV converted on target. All charged particles removed from the beam after the target. Gamma beam irradiate a water phantom. In front of the phantom a thin CheckVolume is placed to score gamma beam properties. Inside the phantom a score volume is placed to calculate radial radiation dose distribution.
