Beam Delivery Simulation (BDSIM) is a program that simulates the passage of particles in a particle accelerator. It uses a suite of standard high energy physics codes (Geant4, ROOT and CLHEP) to create a Geant4 model of a particle accelerator that mixes accelerator tracking routines with all of the physics processes and particles of Geant4. This combination permits radiation and detector background simulations in accelerators where accurate tracking of all particles is required over long range or over many revolutions of a circular machine.

中文翻译：

---

BDSIM：具有粒子-物质相互作用的加速器跟踪代码

射束传递模拟 (BDSIM) 是一种模拟粒子加速器中粒子通过的程序。它使用一套标准的高能物理代码（Geant4、ROOT 和 CLHEP）来创建粒子加速器的 Geant4 模型，该模型将加速器跟踪例程与 Geant4 的所有物理过程和粒子混合在一起。这种组合允许在加速器中进行辐射和探测器背景模拟，其中需要在圆形机器的长距离或多次旋转中准确跟踪所有粒子。