论文标题
用geant4模拟ribras设施
Simulation of the RIBRAS Facility with GEANT4
论文作者
论文摘要
开发了GEANT4仿真代码，以对Ribras设施进行逼真的模拟。包括有限螺线管场的二阶扩展，以良好的精度描述光束光学器件。对几种磁性刚度和焦点的线圈电流进行了系统的研究。获得了单个和双模式操作的线圈电流的参数化。开发了专用的例程，以模拟最终状态下涉及两个和三个颗粒的直接反应机理。使用目前的模拟研究了带有Ribras设施的螺线管光谱仪的可行性。我们的第一个结果表明，该概念可以在某些条件下应用于Ribras系统。来自模拟和实验的即将进行的研究已经在开发中。
A Geant4 simulation code was developed to perform realistic simulations of the RIBRAS facility. A second order expansion of a finite solenoid field was included to describe the beam optics with a good precision. A systematic study of coil currents for several magnetic rigidities and focal points was performed. Parameterizations of the coil currents for single and dual mode operations were obtained. Dedicated routines were developed to simulate the mechanism of direct reactions involving two and three particles in the final state. The present simulations were employed to investigate the feasibility of a Solenoidal Spectrometer with the RIBRAS facility. Our first results indicate that the concept can be applied in the RIBRAS system under certain conditions. Forthcoming studies both from simulations and experiment are already under development.
