Geant4系列讲座二剖析.pptVIP

提 纲;一、Geant4运行模式;……. 头文件 Purely batch-coded mode ……. int main() { . . ….. G4runManager初始化… . . ….. class初始化… ………G4核初始化… runManager-Initialize(); //start run G4int numberOfEvent = 3; runManager-BeamOn(numberOfEvent); delete runManager; return 0; };……. 头文件 Interactive by command line mode ……. #include G4UIterminal.hh #include G4UIsession.hh int main(int argc,char** argv) { . . ….. G4runManager初始化… . . ….. class初始化… ………G4核初始化… runManager-Initialize(); // Terminal initialization; G4UIsession* session = new G4UIterminal; session-SessionStart(); delete runManager; return 0; };#include G4UImanager.hh Mixed mode #include G4RunManager.hh ……………. #include G4VisManager.hh #include G4VisExecutive.hh #include G4UItcsh.hh #include G4UIterminal.hh #include G4UIsession.hh int main(int argc,char** argv) { G4RunManager* MyRun = new G4RunManager; //this part is for the visualization G4VisManager* VisManager = new G4VisExecutive; VisManager-Initialize(); …………………… …………………… MyRun-Initialize(); //G4UIsession* session = new G4UIterminal(new G4UItcsh);;G4UImanager* UI = G4UImanager::GetUIpointer(); Mixed mode if(argc==1) { UI-ApplyCommand(/run/verbose 2); G4String command=/control/execute /g4work/pphotonelectron/vis.mac; UI-ApplyCommand(command); //session-SessionStart(); } else { UI-ApplyCommand(/run/verbose 2); G4String command=/control/execute /g4work/pphotonelectron/; G4String fileName = argv[1]; UI-ApplyCommand(command+fileName); //session-SessionStart(); } //delete session; delete VisManager; delete MyRun; return 0; };二、材料定义;G4Element class 描述微观层面的原子的性质如: 原子序数 核子数 壳层能量 诸如原子截面等 G4Isotope class 描述微观层面的原子的性质如: 原子序数 核子数 莫尔质量等 G4Material class 描述微观层面的原子的性质如: 原子序数 核子数 壳层能量 诸如原子截面等;简单物质定义： G4double density = 1.390*g/cm3; G4double a = 39.95*g/mole; G4Material* lAr = new G4Material( name=liquidArgon, z=18., a, density); 分子定义： a = 1.01*g/mole; G4Element* elH = new G4Element( name=Hydrogen,symbol=H , z= 1., a); a = 16.00*g/mole; G4Element* elO = new G4